خيارات البحث
النتائج 1491 - 1500 من 1,727
The role of primary root system, coleoptile length and cold resistance in the yield formation of semi-dwarf varieties of spring barley (Hordeum vulgare L.) النص الكامل
2014
Кірдогло, Є. К | Поліщук, С. С | Нагуляк, О. І
The role of primary root system, coleoptile length and cold resistance in the yield formation of semi-dwarf varieties of spring barley (Hordeum vulgare L.) النص الكامل
2014
Кірдогло, Є. К | Поліщук, С. С | Нагуляк, О. І
For the resistance to a soil drought in the early stages of seed germination the key role plays the primary root system: an activity of seed germination, the number of seminal roots and their length, dry weight of roots and coleoptile length and also the degree of cold resistance at the seedling stage. The stages and methods of the creation of six-row medium-grown barley varieties Vakula and Helios and semi-dwarf varieties Ros and Halychanyn are described.
اظهر المزيد [+] اقل [-]The role of primary root system, coleoptile length and cold resistance in the yield formation of semi-dwarf varieties of spring barley (Hordeum vulgare L.) النص الكامل
2014
Є. К. Кірдогло | С. С. Поліщук | О. І. Нагуляк
For the resistance to a soil drought in the early stages of seed germination the key role plays the primary root system: an activity of seed germination, the number of seminal roots and their length, dry weight of roots and coleoptile length and also the degree of cold resistance at the seedling stage. The stages and methods of the creation of six-row medium-grown barley varieties Vakula and Helios and semi-dwarf varieties Ros and Halychanyn are described.
اظهر المزيد [+] اقل [-]Economic efficiency of different systems of cultivation of tomato (Lycopersicon esculentum Mill.) and cucumber (Cucumis sativus L.) under rainfed conditions in Right-Bank of Forest- Steppe zone in Ukraine النص الكامل
2014
Виродов, О. С
Economic efficiency of different systems of cultivation of tomato (Lycopersicon esculentum Mill.) and cucumber (Cucumis sativus L.) under rainfed conditions in Right-Bank of Forest- Steppe zone in Ukraine النص الكامل
2014
Виродов, О. С
It is determined that crop cultivation systems (continuous culture and its interruption by crop rotation links with different fertilizer backgrounds) influence the productivity and economic efficiency of tomato and cucumber cultivation under rainfed conditions in Right-Bank of Forest-Steppe zone in Ukraine. Reported calculations show the increased level of profitability of the continuous crop growing in case of interruption by annual crop rotation link against the background of mineral nutrition, but additional organic fertilizers allow to get more profit per unit area.
اظهر المزيد [+] اقل [-]Economic efficiency of different systems of cultivation of tomato (Lycopersicon esculentum Mill.) and cucumber (Cucumis sativus L.) under rainfed conditions in Right-Bank of Forest- Steppe zone in Ukraine النص الكامل
2014
О. С. Виродов
It is determined that crop cultivation systems (continuous culture and its interruption by crop rotation links with different fertilizer backgrounds) influence the productivity and economic efficiency of tomato and cucumber cultivation under rainfed conditions in Right-Bank of Forest-Steppe zone in Ukraine. Reported calculations show the increased level of profitability of the continuous crop growing in case of interruption by annual crop rotation link against the background of mineral nutrition, but additional organic fertilizers allow to get more profit per unit area.
اظهر المزيد [+] اقل [-]Scientific rationale for cos lettuce growing technology Lactuca sativa var. longifolia L. in the Forest-Steppe of Ukraine النص الكامل
2014
Лещук, Н. В | Хареба, В. В | Позняк, О. В | Свинарчук, О. В
Scientific rationale for cos lettuce growing technology Lactuca sativa var. longifolia L. in the Forest-Steppe of Ukraine النص الكامل
2014
Лещук, Н. В | Хареба, В. В | Позняк, О. В | Свинарчук, О. В
Scientifically validated items of growing technology disclosed for cos lettuce marketable products in the conditions of Forest-Steppe of Ukraine. Impact of environmental factors onto growth and development of Lactuca sativa var. longifolia L. plants. Sowing terms established for the seed of cos lettuce at field-seeded growing. Development parameters are quoted for plant productivity indices and marketable product indices for cos lettuce of national and foreign breeding. According to VCU characteristics a typical model has been designed for the cos lettuce indices of suitability for dissemination in Ukraine.
اظهر المزيد [+] اقل [-]Scientific rationale for cos lettuce growing technology Lactuca sativa var. longifolia L. in the Forest-Steppe of Ukraine النص الكامل
2014
Н. В. Лещук | В. В. Хареба | О. В. Позняк | О. В. Свинарчук
Scientifically validated items of growing technology disclosed for cos lettuce marketable products in the conditions of Forest-Steppe of Ukraine. Impact of environmental factors onto growth and development of Lactuca sativa var. longifolia L. plants. Sowing terms established for the seed of cos lettuce at field-seeded growing. Development parameters are quoted for plant productivity indices and marketable product indices for cos lettuce of national and foreign breeding. According to VCU characteristics a typical model has been designed for the cos lettuce indices of suitability for dissemination in Ukraine.
اظهر المزيد [+] اقل [-]Assessing the impact of time of spring vegetation renewal on growth, development and productivity of soft winter wheat varieties النص الكامل
2014
Уліч, О. Л | Ткачик, С. О | Хахула, В. С | Терещенко, Ю. Ф
Assessing the impact of time of spring vegetation renewal on growth, development and productivity of soft winter wheat varieties النص الكامل
2014
Уліч, О. Л | Ткачик, С. О | Хахула, В. С | Терещенко, Ю. Ф
Results of study focusing on impact of environmental factor – time of spring vegetation renewal (TSVR) of soft winter wheat on growth and development of plants, crop productivity and modern varieties response are presented. It is found that in the central part of the Right-Bank of Forest-Steppe of Ukraine this factor is important and it should be considered in planning of spring and summer care techniques, fertilizer system, especially at spring fertilizing, use of pesticides and growth regulators, in taking a decision on reseeding or underseeding of space plants. At the same time, it was determined that the environmental effect of TSVR was not occurred every year, thus it is not always possible to forecast the type of plant development. But in such years it is possible to influence the processes of plants growth, development and survival in spring and summer periods and the formation of their productivity by introducing such intensive technologies as differential crop tending, mineral nutrition optimization, the use of plant growth regulators, trace nutrients, weed, pest and disease control agents.
اظهر المزيد [+] اقل [-]Assessing the impact of time of spring vegetation renewal on growth, development and productivity of soft winter wheat varieties النص الكامل
2014
О. Л. Уліч | С. О. Ткачик | В. С. Хахула | Ю. Ф. Терещенко
Results of study focusing on impact of environmental factor – time of spring vegetation renewal (TSVR) of soft winter wheat on growth and development of plants, crop productivity and modern varieties response are presented. It is found that in the central part of the Right-Bank of Forest-Steppe of Ukraine this factor is important and it should be considered in planning of spring and summer care techniques, fertilizer system, especially at spring fertilizing, use of pesticides and growth regulators, in taking a decision on reseeding or underseeding of space plants. At the same time, it was determined that the environmental effect of TSVR was not occurred every year, thus it is not always possible to forecast the type of plant development. But in such years it is possible to influence the processes of plants growth, development and survival in spring and summer periods and the formation of their productivity by introducing such intensive technologies as differential crop tending, mineral nutrition optimization, the use of plant growth regulators, trace nutrients, weed, pest and disease control agents.
اظهر المزيد [+] اقل [-]Resistance of new common millet varieties to smut races النص الكامل
2014
Перевертун, Л. І | Проданик, А. М | Ткачик, С. О
Resistance of new common millet varieties to smut races النص الكامل
2014
Перевертун, Л. І | Проданик, А. М | Ткачик, С. О
Race-specific resistance of 19 common millet varieties that are firstly listed on the State Register of Plant Varieties Suitable for Dissemination in Ukraine in 2013 is assessed. It is found that almost half of the varieties are infected with all smut races, part of them is resistant only to the first group of smut races, and there is no variety to be resistant to all races of this disease. It is concluded that common millet varieties are needed to be examined for resistance to smut races
اظهر المزيد [+] اقل [-]Resistance of new common millet varieties to smut races النص الكامل
2014
Л. І. Перевертун | А. М. Проданик | С. О. Ткачик
Race-specific resistance of 19 common millet varieties that are firstly listed on the State Register of Plant Varieties Suitable for Dissemination in Ukraine in 2013 is assessed. It is found that almost half of the varieties are infected with all smut races, part of them is resistant only to the first group of smut races, and there is no variety to be resistant to all races of this disease. It is concluded that common millet varieties are needed to be examined for resistance to smut races
اظهر المزيد [+] اقل [-]Developing a method of rapid diagnosis of the photosynthetic apparatus status of sugar beet plants based on chlorophyll fluorescence intensity النص الكامل
2014
Присяжнюк, О. І | Коровко, І. І
Developing a method of rapid diagnosis of the photosynthetic apparatus status of sugar beet plants based on chlorophyll fluorescence intensity النص الكامل
2014
Присяжнюк, О. І | Коровко, І. І
Chloropyll fluorescence intensity dependence on biological features of sugar beet hybrids and plant growth stages is described. Accuracy of a method of rapid diagnosis of the photosynthetic apparatus status of sugar beet plants are evaluated.
اظهر المزيد [+] اقل [-]Developing a method of rapid diagnosis of the photosynthetic apparatus status of sugar beet plants based on chlorophyll fluorescence intensity النص الكامل
2014
О. І. Присяжнюк | І. І. Коровко
Chloropyll fluorescence intensity dependence on biological features of sugar beet hybrids and plant growth stages is described. Accuracy of a method of rapid diagnosis of the photosynthetic apparatus status of sugar beet plants are evaluated.
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
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 [-]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 [-]Peculiarities of grain technological indices establishment for coated and naked grain oats (Avena sativa L.) النص الكامل
2013
О. І. Буняк
Peculiarities of grain technological indices establishment for coated and naked grain oats (Avena sativa L.) النص الكامل
2013
О. І. Буняк
Oats technological indices have been analyzed. Influence of growing conditions on natural weight, kernel size, and hoodness is established. The study summary indicates essential dependence of natural weight and hoodness and precipitation at the stage of grain formation in coated grain oats varieties. Moisture supply in the period of grain formation essentially influenced the percentage of coated grains formation and natural weight score in naked grain varieties. Morphometric analyzes of oats caryopsis was completed using the method of machine vision. Correlation between technological indices and morphometric characteristics of naked and coated grain of oats was determined. Also, essential dependence of hoodness on 1000 seeds weight and the lack of essential correlation with morphometric characteristics of the calliopsis were established. Calliopsis width essentially influenced the weight of 1000 seeds. Metric indices of naked grain oats calliopsis exposed close correlation with kernel size and natural weight. Weight of 1000 seeds exposed essential varietal distinctness and was determined by genetic peculiarities of varieties
اظهر المزيد [+] اقل [-]Functional features of photosynthetic apparatus of modern high-yielding winter wheat varieties النص الكامل
2016
Моргун, В. В | Стасик, О. О | Кірізій, Д. А | Прядкіна, Г. О
Purpose. Comparative studies of the photosynthetic apparatus of winter wheat varieties of modern and earlier breeding in the relation to their productivity. Methods. Field, pot experiment, biometrical, gas analysis, analytical and statistical ones. Results. It is found that the modern high-yielding winter wheat varieties have a higher rate of flag leaf photosynthesis during generative period of development, particularly at grain filling period, improved ability to store assimilates in stem and effectively use them later for grain growth. The modern varieties form crop canopy with greater leaf area and chlorophyll indexes and larger photosynthetic capacity and maintain functional activity of photosynthetic apparatus longer at the end of the growing season. Conclusions. The superiority for grain productivity of modern high-yielding wheat varieties, originated from the Institute of Plant Physiology and Genetics, NAS of Ukraine, over varieties released before the “green revolution”, results from increased capacity and durability of functioning the crop photosynthetic apparatus, higher CO2 assimilation rate and optimization of source-sink relations in whole plant.
اظهر المزيد [+] اقل [-]Selection of tomato hybrids (Lycopersicon esculentum Mill.) for cultivation in the extended culture winter greenhouses النص الكامل
2013
І. Л. Гаврись
Selection of tomato hybrids (Lycopersicon esculentum Mill.) for cultivation in the extended culture winter greenhouses النص الكامل
2013
І. Л. Гаврись
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 [-]Genetic and Statistical Research of the Short Stem Erectoid Winter Rye Samples (Secale cereale l.) النص الكامل
2009
Скорик, В. В | Симоненко, Н. В | Бутунець, О. О | Ковальчук, Т. А
Outcomes of reciprocal crossings new Rye donor of super-short stem with electroidness Hl-3Hl-3elel and tall Rye Variety Viatka 2 are provided. The firs generation hybrids appeared to have a short stem with regular leaf blade. In the second generation the female parent effect of short stem domination was established, as well as complete domination of tall bushiness, long-spiked plants, increased number or grains in the ear. Weight of 100 grains in the ear made 22,79 і 29, 41% of the heterosis relative to the best parent. According to the results of the research of genetic and statistical parameters of F2 breeding characteristics plants with electoid leaf blade shape were selected.
اظهر المزيد [+] اقل [-]Seed productivity of Trigonella species النص الكامل
2013
І. М. Бобось
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 [-]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 [-]