خيارات البحث
النتائج 2041 - 2050 من 2,235
Suitability for processing of carrot (Daucus carota L.) roots of different varieties النص الكامل
2013
Завадська, О. В | Бобось, І. М | Дяденко, Т. В
Suitability for processing of carrot (Daucus carota L.) roots of different varieties النص الكامل
2013
Завадська, О. В | Бобось, І. М | Дяденко, Т. В
The article presents summary of studying the efficiency of dry carrot production when growing in the conditions of Ukraine’s Forest-Steppe subject to a variety. A complex assessment has been completed for fresh and dried products of 10 different varieties and hybrids of carrots on the content of basic biochemical, economic and biological indicators in order to highlight the best suited for drying. Varieties have been singled out, which roots display the highest yield, best marketability, accumulate the most of dry matter, sugars, etc. A close direct correlation between the weight of roots and their marketability has been established. An evaluation of the tested roots for complex organoleptic characteristics has been completed. It is proved that carrot drying is profitable. The yield and dry matter content in roots are key influence factors on profitability of dry carrot production. By the set of parameters under studying varieties most suitable for drying, Krasniy Velikan and Dlinnaia Krasnaia, have been selected. Profitability of their drying exceeds 40%.
اظهر المزيد [+] اقل [-]Suitability for processing of carrot (Daucus carota L.) roots of different varieties النص الكامل
2013
О. В. Завадська | І. М. Бобось | Т. В. Дяденко
The article presents summary of studying the efficiency of dry carrot production when growing in the conditions of Ukraine’s Forest-Steppe subject to a variety. A complex assessment has been completed for fresh and dried products of 10 different varieties and hybrids of carrots on the content of basic biochemical, economic and biological indicators in order to highlight the best suited for drying. Varieties have been singled out, which roots display the highest yield, best marketability, accumulate the most of dry matter, sugars, etc. A close direct correlation between the weight of roots and their marketability has been established. An evaluation of the tested roots for complex organoleptic characteristics has been completed. It is proved that carrot drying is profitable. The yield and dry matter content in roots are key influence factors on profitability of dry carrot production. By the set of parameters under studying varieties most suitable for drying, Krasniy Velikan and Dlinnaia Krasnaia, have been selected. Profitability of their drying exceeds 40%.
اظهر المزيد [+] اقل [-]In given article results of studying of a selection material of a beet sugar (Beta vulgaris L. ssp.vulgaris var. altissima Doell) (Ms-lines and pollinators) the Ivanovo skilled-selection station under program «Betaintercross» are considered النص الكامل
2013
Лейбович, А. С | Борисов, Д. В | Борисова, Т. О | Borisova, L. V. | Шрамко, Л. П
In given article results of studying of a selection material of a beet sugar (Beta vulgaris L. ssp.vulgaris var. altissima Doell) (Ms-lines and pollinators) the Ivanovo skilled-selection station under program «Betaintercross» are considered النص الكامل
2013
Лейбович, А. С | Борисов, Д. В | Борисова, Т. О | Borisova, L. V. | Шрамко, Л. П
The article considers the results of studying breeding material of sugar beet (MS-lines and many-seeded pollinators) of Ivanivsk Variety Testing Station in the framework of Beta-Intercross Program. Betaintercross Breeding Program for Sugar Beet has been developed by, and is implemented in, the Institute for Bioenergy Crops, formerly known as Sugar Beets Institute (ISB). Ivansivsk Variety Testing Station has been fully engaged into implementation of the Program since 1996. Key task for the Program is to draw genetic potential of breeding materials of sugar beet of the Institute research entities, namely Bila Tserkva Breeding Research Station, Ivanivsk Breeding Research Station, Uladovo-Liulinets Breeding Research Station, Uman Breeding Research Station, Ialtushkivka Breeding Research Station, as well as domestic and foreign companies with the view of maximizing the effect of heterosis use with the view of producing highly productive hybrids of new generation. Over various years, apart from various experimental re-search entities of the Institute, such companies as KWS (Germany), Novi Sad Institute (Serbia), Ramon (Russia), Danisco Seed (Denmark), Belorus ZDS and others have taken part [in the above Program]. The article provides key principles for the Program implementation scheme and its method. The cooperation has enabled to produce a range of highly productive hybrids listed in the State Register capable of competing at today’s market of sugar beet seed. Among these there are hybrids produced jointly with Ivanivsk Research Breeding Station, in particular: Romul (2005), Prometei (2008), Ramses (2009), Risolt (2007), Kvarta (2010), Zluka (2010), ITSB 0801 (2011), ITSB 0802 (2011), ITSB 0904 (2012), ITSB 0905 (2012).
اظهر المزيد [+] اقل [-]In given article results of studying of a selection material of a beet sugar (Beta vulgaris L. ssp.vulgaris var. altissima Doell) (Ms-lines and pollinators) the Ivanovo skilled-selection station under program «Betaintercross» are considered النص الكامل
2013
А. С. Лейбович | Д. В. Борисов | Т. О. Борисова | Л. В. Борисова | Л. П. Шрамко
The article considers the results of studying breeding material of sugar beet (MS-lines and many-seeded pollinators) of Ivanivsk Variety Testing Station in the framework of Beta-Intercross Program. Betaintercross Breeding Program for Sugar Beet has been developed by, and is implemented in, the Institute for Bioenergy Crops, formerly known as Sugar Beets Institute (ISB). Ivansivsk Variety Testing Station has been fully engaged into implementation of the Program since 1996. Key task for the Program is to draw genetic potential of breeding materials of sugar beet of the Institute research entities, namely Bila Tserkva Breeding Research Station, Ivanivsk Breeding Research Station, Uladovo-Liulinets Breeding Research Station, Uman Breeding Research Station, Ialtushkivka Breeding Research Station, as well as domestic and foreign companies with the view of maximizing the effect of heterosis use with the view of producing highly productive hybrids of new generation. Over various years, apart from various experimental re-search entities of the Institute, such companies as KWS (Germany), Novi Sad Institute (Serbia), Ramon (Russia), Danisco Seed (Denmark), Belorus ZDS and others have taken part [in the above Program]. The article provides key principles for the Program implementation scheme and its method. The cooperation has enabled to produce a range of highly productive hybrids listed in the State Register capable of competing at today’s market of sugar beet seed. Among these there are hybrids produced jointly with Ivanivsk Research Breeding Station, in particular: Romul (2005), Prometei (2008), Ramses (2009), Risolt (2007), Kvarta (2010), Zluka (2010), ITSB 0801 (2011), ITSB 0802 (2011), ITSB 0904 (2012), ITSB 0905 (2012).
اظهر المزيد [+] اقل [-]Seed productivity of Trigonella species النص الكامل
2013
Бобось, І. М
Seed productivity of Trigonella species النص الكامل
2013
Бобось, І. М
The article unveils the seed potential of fenugreek species to provide routine supply of methi leaf in the conditions of Ukrainian Forest-Steppe. The fenugreek species have have a wide range of morphological and economical characteristics variability that affect their seed production. A high productivity of dry seeds is inherent to fenugreek species at early spring sowing (10.04), as for this date the yield of dry seeds of blue fenugreek amounted to 0.4 t per ha, that of fenugreek hay – 2.0 t / ha, with mass of 1000 seeds, respectively, 0.71 and 9.7 gr. To obtain a spicery called «mushroom grass» the use of fenugreek hay is considered as a promising direction (Greek hay, Shambhala, hay fenugreek) along with scheduling the sowing for early spring (4.10) and late spring (25.04–15.05) , which would enable the development of greatest herbage volume and higher yield of mature seed (0.9–2.0 t / ha). Another prospective line of development is to use blue fenugreek (fenugreek blue) as a green manure and nectar bearing crop, with the sowing scheduled for spring (4.10) and late spring (25.04–15.05).
اظهر المزيد [+] اقل [-]Seed productivity of Trigonella species النص الكامل
2013
І. М. Бобось
The article unveils the seed potential of fenugreek species to provide routine supply of methi leaf in the conditions of Ukrainian Forest-Steppe. The fenugreek species have have a wide range of morphological and economical characteristics variability that affect their seed production. A high productivity of dry seeds is inherent to fenugreek species at early spring sowing (10.04), as for this date the yield of dry seeds of blue fenugreek amounted to 0.4 t per ha, that of fenugreek hay – 2.0 t / ha, with mass of 1000 seeds, respectively, 0.71 and 9.7 gr. To obtain a spicery called «mushroom grass» the use of fenugreek hay is considered as a promising direction (Greek hay, Shambhala, hay fenugreek) along with scheduling the sowing for early spring (4.10) and late spring (25.04–15.05) , which would enable the development of greatest herbage volume and higher yield of mature seed (0.9–2.0 t / ha). Another prospective line of development is to use blue fenugreek (fenugreek blue) as a green manure and nectar bearing crop, with the sowing scheduled for spring (4.10) and late spring (25.04–15.05).
اظهر المزيد [+] اقل [-]Quality and marketable characteristics of highbush blueberry (Vaccinium corym- bosum L.) under the Kyiv region conditions النص الكامل
2013
Сіленко, В. О | Марченко, С. В
Quality and marketable characteristics of highbush blueberry (Vaccinium corym- bosum L.) under the Kyiv region conditions النص الكامل
2013
Сіленко, В. О | Марченко, С. В
In the article the authors present the results of the study biometric and qualitative characteristics of berries highbush blueberry varieties (Vaccinium corymbosum L.) in a specific soil and climatic conditions Forest-steppe of Ukraine (Kiev). Investigations were carried out on 11 varieties of American highbush blueberry. Phenological observations, biometric surveys, tasting score and biochemical analysis of the berries have been conducted during the growing season. By results of researches the group of early-ripening varieties includes Bluestar, Earliblue, Patriot, the middle-ripening – Jonne, Atlantis, Bluegold, Bluecrop, Chyk and late-ripening varieties – Amanda, Darrow, Toro. Duration of collecting period of ripe berries was lower (16 days) in varieties Bluestar, Earliblue, Jonne and Darrow. Berries were large sizes in the varieties of Darrow, Amanda, Jonne, in other varieties berries were medium size. By tasting score the berry of varieties Toro, Earliblue, Jonne and Darrow were the best. For biochemical parameters the better varieties were Amanda, Jonne and Earliblue.
اظهر المزيد [+] اقل [-]Quality and marketable characteristics of highbush blueberry (Vaccinium corym- bosum L.) under the Kyiv region conditions النص الكامل
2013
В. О. Сіленко | С. В. Марченко
In the article the authors present the results of the study biometric and qualitative characteristics of berries highbush blueberry varieties (Vaccinium corymbosum L.) in a specific soil and climatic conditions Forest-steppe of Ukraine (Kiev). Investigations were carried out on 11 varieties of American highbush blueberry. Phenological observations, biometric surveys, tasting score and biochemical analysis of the berries have been conducted during the growing season. By results of researches the group of early-ripening varieties includes Bluestar, Earliblue, Patriot, the middle-ripening – Jonne, Atlantis, Bluegold, Bluecrop, Chyk and late-ripening varieties – Amanda, Darrow, Toro. Duration of collecting period of ripe berries was lower (16 days) in varieties Bluestar, Earliblue, Jonne and Darrow. Berries were large sizes in the varieties of Darrow, Amanda, Jonne, in other varieties berries were medium size. By tasting score the berry of varieties Toro, Earliblue, Jonne and Darrow were the best. For biochemical parameters the better varieties were Amanda, Jonne and Earliblue.
اظهر المزيد [+] اقل [-]Selection of tomato hybrids (Lycopersicon esculentum Mill.) for cultivation in the extended culture winter greenhouses النص الكامل
2013
Гаврись, І. Л
Selection of tomato hybrids (Lycopersicon esculentum Mill.) for cultivation in the extended culture winter greenhouses النص الكامل
2013
Гаврись, І. Л
The article presents the estimation of economic and biological characteristics of indeterminant tomato hyb rids (Raisa F1, Macarena F1, Emotion F1, Anabel F1, Mariachi F1) under conditions of winter hydroponic. The earliest emergence of fruits is established for Macarena F1 tomato hydrid. The total number of brushes, flo ers and w fruits formed on the plant during the vegetation period, is determined. The degree of fruit inception, yield per plant and average weight of the plant are measured. The monthly dynamics of hybrid tomato crops is presented. The largest harvest was collected through May to July. Marketable and non-marketable portions of the harvest and commercial quality of tomato fruits are determined. A close correlation between fruit weight and fruit yield is established. The Macarena F1 hybrid is distinguished as the most precocious and high-yielding variety.
اظهر المزيد [+] اقل [-]Порівняльний аналіз ліній кукурудзи звичайної (Zea mays L.) за морфологічними та молекулярними характеристиками النص الكامل
2024
Л. М. Присяжнюк | Ю. В. Шитікова | М. М. Таганцова | І. О. Діхтяр | С. М. Гринів
Мета. Встановити філогенетичні зв’язки між лініями кукурудзи звичайної за результатами морфологічного опису (ВОС-тест) та SSR маркерами. Методи. Польові (описова морфологія рослин), молекулярні (ПЛР, капілярний електрофорез), статистичні (кореляційний аналіз, ієрархічна кластеризація). Результати. Внаслідок польових досліджень 57 ліній кукурудзи за морфологічними ознаками встановлено коди прояву якісних і кількісних ознак, що дало змогу визначити три групи досліджуваних ліній відповідно до ступеня їхньої подібності: відмінні, подібні та дуже подібні. На основі коефіцієнтів подібності за Пірсоном розраховано фенотипові дистанції між лініями й одержано п’ять кластерних груп та сім окремих кластерів, сформованих окремими лініями. Найбільш подібними за кодами прояву морфологічних ознак виявилися лінії кукурудзи з коефіцієнтом подібності 0,997, які за результатами експертизи на відмінність, однорідність та стабільність (ВОС) належать до групи подібних. Коефіцієнти подібності між лініями, що зараховують до групи дуже подібних, були достатньо високими: від 0,890 до 0,990. Однак між двома лініями з цієї групи коефіцієнт подібності становив 0,771. На основі молекулярних дистанцій за Роджером для дев’яти SSR маркерів як найподібніші визначено лінії з коефіцієнтом подібності 0,16, хоча за результатами експертизи на ВОС ця пара належить до відмінних. Найбільш відмінною за SSR маркерами виявилася пара ліній із коефіцієнтом подібності 0,42. Внаслідок розрахунку кореляційної залежності між матрицями фенотипових і молекулярних дистанцій встановлено дуже слабку обернену кореляцію (r = −0,1). Висновки. З’ясовано, що розрахунок фенотипових і молекулярних дистанцій відображає рівень подібності досліджуваних генотипів за морфологічними ознаками та SSR маркерами. Продемонстровано, що ступінь подібності між досліджуваними лініями кукурудзи різниться залежно від застосованого підходу оцінювання. На це вказує експертна оцінка ліній кукурудзи за результатами експертизи на ВОС.
اظهر المزيد [+] اقل [-]Fractional composition of water in leaves of apple varieties (Malus Mill) النص الكامل
2013
Галашева, А. М | Красова, Н. Г | Янчук, Т. В
Fractional composition of water in leaves of apple varieties (Malus Mill) النص الكامل
2013
Галашева, А. М | Красова, Н. Г | Янчук, Т. В
In connection to the climate changing and draught frequency increasing in the spring-summer period the fractional composition of water (combined and uncombined water) in leaves of apple from May to August 2011, 2012 were studies. Combined and uncombined waters have different functionality for the life of plants. An uncombined water in leaves determines intensity of physiologic processes while the combined is responsible for plants resistance to unfavorable conditions. The fractional composition of water was studied in apple leaves of varieties bred by All-Russian Research Institute for Fruit Crop Breeding of RAAS, Bolotovskoye, Irmus, Orlik, Orlovim, Orlovskoye Polosatoye, Sinap Orlovskiy, Yubiliar in comparision to widespread varieties – Antonovka, Melba and Welsi. The study established that the varieties examined were well-adapted to drought in May, at the beginning of summer, as well as at the end of August and in September. At the beginning of July and in June higher indices of drought resistance were registered for Orlovim and Yubiliar, with the highest indices of combined water content. The completion of shoots growth and development of leaves system in all apple varieties was associated with increase of combined water amount in the leaves in August. In September, the number of combined water remained higher that suggested high adaptivity of the varieties being studied. The highest content of combined water in autumn was registered for Sinap Orlovskiy, Antonovka, Boltovskoie, Irmus.
اظهر المزيد [+] اقل [-]Fractional composition of water in leaves of apple varieties (Malus Mill) النص الكامل
2013
А. М. Галашева | Н. Г. Красова | Т. В. Янчук
In connection to the climate changing and draught frequency increasing in the spring-summer period the fractional composition of water (combined and uncombined water) in leaves of apple from May to August 2011, 2012 were studies. Combined and uncombined waters have different functionality for the life of plants. An uncombined water in leaves determines intensity of physiologic processes while the combined is responsible for plants resistance to unfavorable conditions. The fractional composition of water was studied in apple leaves of varieties bred by All-Russian Research Institute for Fruit Crop Breeding of RAAS, Bolotovskoye, Irmus, Orlik, Orlovim, Orlovskoye Polosatoye, Sinap Orlovskiy, Yubiliar in comparision to widespread varieties – Antonovka, Melba and Welsi. The study established that the varieties examined were well-adapted to drought in May, at the beginning of summer, as well as at the end of August and in September. At the beginning of July and in June higher indices of drought resistance were registered for Orlovim and Yubiliar, with the highest indices of combined water content. The completion of shoots growth and development of leaves system in all apple varieties was associated with increase of combined water amount in the leaves in August. In September, the number of combined water remained higher that suggested high adaptivity of the varieties being studied. The highest content of combined water in autumn was registered for Sinap Orlovskiy, Antonovka, Boltovskoie, Irmus.
اظهر المزيد [+] اقل [-]Suitability of black currant (Ribes nigrum L.) as bred by NULES of Ukraine to machine harvesting of its berries النص الكامل
2013
Сіленко, В. О | Гав’юк, П. М
Suitability of black currant (Ribes nigrum L.) as bred by NULES of Ukraine to machine harvesting of its berries النص الكامل
2013
Сіленко, В. О | Гав’юк, П. М
In the article the authors show outcome of three years observation of blackcurrant varieties bred by Study Horticulture Department NULES of Ukraine for their suitabi lity to machine harvesting. Blackcurrant is the most common berry crop in Ukraine. When establishing intensive industrial plantations the varieties suitable for machine harvesting should be used. During 2006-2008 limited and unlimited traits of varieties bred by NULES of Ukraine suitability to combine harvesting were studied. All parameters of the examined varieties were compared against the requirements of the «ideal variety”. Simultaneous ripening of berries was observed in varieties Dochka Vorskly – 93,6%, Hovtva, Pamyaty Leonida Myhalevskoho – 92,6%. The pick off effort required to collect berries out of their clusters for all varieties but Yarynka was within acceptable range of 67...129 g. By effort applied for berries crush only Yarynka has failed to meet the necessary requirements. All the varie ties but Yarynka have been found suitable by growth habit of their bush (upright and semi-spread). Insufficient number fruits (6-7 pc.) in clusters for varieties Narodna and Yarynka was noted. Berries weight for all studied varieties ranged within 1.27-1.84 g, their drop-off was 3-8%, duration of harvesting period ranged from 8 to 10 days, so all the parameters of varieties suggested they were suitable for picking berries by berry harvesters. Varieties Dochka Vorskly, Universitetska, Hovtva, Pamyatna, Premiera, Narodna, Leleka and Pamyaty Leonida Myhalevskoho were selected as suitable for combine harvesting by the complex of positive parameters.
اظهر المزيد [+] اقل [-]Suitability of black currant (Ribes nigrum L.) as bred by NULES of Ukraine to machine harvesting of its berries النص الكامل
2013
В. О. Сіленко | П. М. Гав’юк
In the article the authors show outcome of three years observation of blackcurrant varieties bred by Study Horticulture Department NULES of Ukraine for their suitabi lity to machine harvesting. Blackcurrant is the most common berry crop in Ukraine. When establishing intensive industrial plantations the varieties suitable for machine harvesting should be used. During 2006-2008 limited and unlimited traits of varieties bred by NULES of Ukraine suitability to combine harvesting were studied. All parameters of the examined varieties were compared against the requirements of the «ideal variety”. Simultaneous ripening of berries was observed in varieties Dochka Vorskly – 93,6%, Hovtva, Pamyaty Leonida Myhalevskoho – 92,6%. The pick off effort required to collect berries out of their clusters for all varieties but Yarynka was within acceptable range of 67...129 g. By effort applied for berries crush only Yarynka has failed to meet the necessary requirements. All the varie ties but Yarynka have been found suitable by growth habit of their bush (upright and semi-spread). Insufficient number fruits (6-7 pc.) in clusters for varieties Narodna and Yarynka was noted. Berries weight for all studied varieties ranged within 1.27-1.84 g, their drop-off was 3-8%, duration of harvesting period ranged from 8 to 10 days, so all the parameters of varieties suggested they were suitable for picking berries by berry harvesters. Varieties Dochka Vorskly, Universitetska, Hovtva, Pamyatna, Premiera, Narodna, Leleka and Pamyaty Leonida Myhalevskoho were selected as suitable for combine harvesting by the complex of positive parameters.
اظهر المزيد [+] اقل [-]Potato varieties dynamics (Solanum tuberosum L.), suitable for dissemination in Ukraine during the 1991-2013 period النص الكامل
2013
Василюк, П. М | Подгаєцький, А. А | Кравченко, Н. В | Києнко, З. Б
Potato varieties dynamics (Solanum tuberosum L.), suitable for dissemination in Ukraine during the 1991-2013 period النص الكامل
2013
Василюк, П. М | Подгаєцький, А. А | Кравченко, Н. В | Києнко, З. Б
The analysis of dynamics entering into the State Register of Plant Varieties suitable for distribution in Ukraine, potato varieties during the period of 1991–2013.The magnificent differences in the total numbers of varieties, including foreign and national breeding are determined. The certain period of years with relatively equal number of varieties suitable for distribution in Ukraine is revealed. Simultaneously their number has increased 4.7 times for the entire period. The Scientific Institutions have been established, and their share of varieties is considered to be the biggest one in the Register, although the varieties of the most Breeding Institutions performed their competitiveness in recent years. The different ratio between foreign countries varieties and firms on number suitable for distribution in Ukraine has been set. It concerns their total number, having increased during the period of 1991 – 2013 12.3 times.
اظهر المزيد [+] اقل [-]Potato varieties dynamics (Solanum tuberosum L.), suitable for dissemination in Ukraine during the 1991-2013 period النص الكامل
2013
П. М. Василюк | А. А. Подгаєцький | Н. В. Кравченко | З. Б. Києнко
The analysis of dynamics entering into the State Register of Plant Varieties suitable for distribution in Ukraine, potato varieties during the period of 1991–2013.The magnificent differences in the total numbers of varieties, including foreign and national breeding are determined. The certain period of years with relatively equal number of varieties suitable for distribution in Ukraine is revealed. Simultaneously their number has increased 4.7 times for the entire period. The Scientific Institutions have been established, and their share of varieties is considered to be the biggest one in the Register, although the varieties of the most Breeding Institutions performed their competitiveness in recent years. The different ratio between foreign countries varieties and firms on number suitable for distribution in Ukraine has been set. It concerns their total number, having increased during the period of 1991 – 2013 12.3 times.
اظهر المزيد [+] اقل [-]Auxin activity of piсloram in callusogensis- and morphogenesis of apple (Malus do- mestica borkh.) anthers النص الكامل
2013
Джафарова, В. Є
Auxin activity of piсloram in callusogensis- and morphogenesis of apple (Malus do- mestica borkh.) anthers النص الكامل
2013
Джафарова, В. Є
Callusogensis and morphogenesis of anthers of apple scab resistant varieties have been studied, with picloram applied. Auxin activity of this preparation has been revealed as in the darkness so in the light. The callusogenesis efficiency of studied varieties varied from 26,0 to 83,3% subject to the concentration of picloram in the darkness and from 11,3 to 74,9% in the conditions of low light. We consider 4 mg/l in the medium to be an optimal level of piloram concentration so far as this concentration provides the best callusogenesis indices of the tested apple varieties. The callus formed in the darkness in the medium with picloram is knobby and dense of white or milky color. The callus formed in the light is intensively green or greenishwhite, denser, with distinctly outlined meristem hearths. Morphological characters of calluses obtained in the medium of picloram are stable over years. The roots of Yubiley Moskvy variety have been induced under auxin:cytokinin ratio 1 : 2 (picloram : BAP, cytokinin). The roots of Svezhest cultivar were obtained under auxin : cytokinin ratio 3:9 (picloram : BAP, kinetin). Formation of four buds was recored in Orlovskoye polesie variety under auxin : cytokinin ratio 1:20.
اظهر المزيد [+] اقل [-]Auxin activity of piсloram in callusogensis- and morphogenesis of apple (Malus do- mestica borkh.) anthers. النص الكامل
2013
В. Є. Джафарова
Callusogensis and morphogenesis of anthers of apple scab resistant varieties have been studied, with picloram applied. Auxin activity of this preparation has been revealed as in the darkness so in the light. The callusogenesis efficiency of studied varieties varied from 26,0 to 83,3% subject to the concentration of picloram in the darkness and from 11,3 to 74,9% in the conditions of low light. We consider 4 mg/l in the medium to be an optimal level of piloram concentration so far as this concentration provides the best callusogenesis indices of the tested apple varieties. The callus formed in the darkness in the medium with picloram is knobby and dense of white or milky color. The callus formed in the light is intensively green or greenishwhite, denser, with distinctly outlined meristem hearths. Morphological characters of calluses obtained in the medium of picloram are stable over years. The roots of Yubiley Moskvy variety have been induced under auxin:cytokinin ratio 1 : 2 (picloram : BAP, cytokinin). The roots of Svezhest cultivar were obtained under auxin : cytokinin ratio 3:9 (picloram : BAP, kinetin). Formation of four buds was recored in Orlovskoye polesie variety under auxin : cytokinin ratio 1:20.
اظهر المزيد [+] اقل [-]Unification of selection by quantitative characters in seed production of green pea (Pisum sativum L. partim) النص الكامل
2013
Стригун, В. М
Unification of selection by quantitative characters in seed production of green pea (Pisum sativum L. partim) النص الكامل
2013
Стригун, В. М
In the production of original, basic green pea seed it is critical to to single out (select) basic plants. The marked (selected) plants shall comply with their breeder’s description. Since seed breeding events are conducted with every new variety by various persons and in various agroecologic conditions, subjective factors, as well as environmental factors, may interfere with determining parameters of every characteristic considered there. As a consequence, identification and varietal characteristics and properties are subject to change and might not correspond to the breeder’s description; this, of course, affects the quality of variety. For the purpose of leveling the above factors, example of vegetable pea serves as a suggestion of a technique for exeminig parameters of variability of quantitative traits for specific population observing the rule of «golden section».
اظهر المزيد [+] اقل [-]Molecular phylogeny of Cytospora species associated with canker diseases of fruit and nut crops in California, with the descriptions of ten new species and one new combination النص الكامل
2018
Daniel P. Lawrence | Leslie A. Holland | Mohamed T. Nouri | Renaud Travadon | Ara Abramians | Themis J. Michailides | Florent P. Trouillas
Abstract Cytospora species are destructive canker and dieback pathogens of woody hosts in natural and agroecosystems around the world. In this genus, molecular identification has been limited due to the paucity of multi-locus sequence typing studies and the lack of sequence data from type specimens in public repositories, stalling robust phylogenetic reconstructions. In most cases a morphological species concept could not be applied due to the plasticity of characters and significant overlap of morphological features such as spore dimensions and fruiting body characters. In this study, we employed a molecular phylogenetic framework with the inclusion of four nuclear loci (ITS, translation elongation factor 1-alpha, actin, and beta-tubulin) to unveil the biodiversity and taxonomy of this understudied important genus of plant pathogens. Phylogenetic inferences based on 150 Californian isolates revealed 15 Cytospora species associated with branch and twig cankers and dieback of almond, apricot, cherry, cottonwood, olive, peach, pistachio, plum, pomegranate, and walnut trees in California. Of the 15 species recovered in this study, 10 are newly described and typified, in addition to one new combination. The pathogenic status of the newly described Cytospora species requires further investigation as most species were associated with severe dieback and decline of diverse and economically important fruit and nut crops in California.
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