خيارات البحث
النتائج 81 - 90 من 92
Productivity and fruit quality of Jonagold clones of home selection
2014
К. П. Тарнавська
New results of the clonal selection of apple tree (Malus domestica Borkh) conducted at Podillya Research Station of Horticultural Institute NAAS by method of state variety testing have been presented. By the results of the 6-year studying (2007 - 2012) of 20 new Jonagold clones of domestic selection their estimation was carried out according to the complex of such qualities as productivity, early ripening, marketability, taste qualities and durability of fruits. The following clones are defined to be the best: DP-16, DP-17, DP-18, DP-20. They start fruiting in the age of 2 or 3 years, productivity of the 5- or 6-year-old trees reaches 8,3–25,5 tons per hectare, quantity of the fruits of the highest and first grade is about 57–76% (in 2010–2012). Fruits of the mentioned clones are bigger than medium size (DP-16), big (DP-17, DP-18) and very big (DP-20); they have average similarity, excellent and very harmonious sour-sweet taste (8,3–8,7 points). Fruits of the best clones kept their quality for 202 – 220 days.
اظهر المزيد [+] اقل [-]Triticale: agroecological and economic value, ongoing state at the cases of Eurasian, North- and South American and Australian areas
2014
C. І. Тарасюк
State and prospects of growing for Triticale crop at the territory of leading states of the world are highlighted across space and time. Observing the trend of changes in planting acreage and the product yield of wheat and rye hybrids, their popularity in agrarian and industrial fields of a whole range of countries in Asia, Northern and Southern America, Australia, a Ukrainian manufacturer is invited to consider and reasonably assess this crop and thus list in the composition of planted acreage the national nowadays varieties of triticale as an essential or strategic system component.
اظهر المزيد [+] اقل [-]Considering the issue of aligning Ukrainian plant names. Communication 3. Names for Ribes L. species
2014
В. М. Меженський
The nomenclature and the system of genus Ribes s.l., application of indigenous and introduced plant names, from which such commercial small fruit crops as gooseberry, black and red currant have been formed, is considered. Scientifi c names based on Ukrainian generic name Porichky are streamlined. Ukrainian names for 64 taxa at the rank of species and variety were given. For hybrids nothotaxa ×Ribelaria Mezhenskyj, nothosubg. nov. (= subg. Ribes × subg. Grossularia) and ×Сalocalyx Mezhenskyj, nothosect. nov. (= sect. Calobotrya × sect. Symplocalyx) were defi ned.
اظهر المزيد [+] اقل [-]Developing a method of rapid diagnosis of the photosynthetic apparatus status of sugar beet plants based on chlorophyll fluorescence intensity
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 [-]Assessing the impact of time of spring vegetation renewal on growth, development and productivity of soft winter wheat varieties
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 [-]Agroecological features of the new varieties soft winter wheat Yuvivata 60
2014
В. В. Москалець | Т. З. Москалець | В. І. Москалець | Н. М. Буняк
The main factor, and cost-effective rapid increase in yield of all crops and raising its quality is an innovative process for the creation and introduction of new varieties. Overall condition of use in the production of new varieties is very unsatisfactory. For this year the country loses more than 1.5 mln. tonnes of grains of winter cereals. Currently, the requirements for soft winter wheat, as a factor of sustainable productivity, increase. Despite the obvious advances in breeding wheat varieties as genetic yield potential of more than 10 t/ha, the actual implementation of it is around 50 %. Therefore remains an urgent problem of developing varieties with high potential and implementation of evidence-based their growth. Thus, the genetic yield potential genotype implemented with a balanced exposure of a number of factors. The purpose of research – create a soft winter wheat variety with well-defined ecological and adaptive properties and high quantitative and qualitative indicators of grain yield, varieties show ability to withstand adverse abiotic, biotic and anthropogenic factors of the environment for future breeding. Stated agroecological characteristics of variety soft winter wheat Yuvivata 60 by economically valuable indicators. Performed a detailed description of the new variety wheat based on morphological and biological characteristics. Showing environmental features Yuvivata 60 (in terms of genotypic effect and degree of plasticity) under different conditions ecotops of Ukraine. For agricultural producers proposed of adaptive variety soft winter wheat Yuvivata 60, that will provide guaranteed high quality and grain yield.
اظهر المزيد [+] اقل [-]Development and variability of soft winter wheat varieties in stress environmental conditions
2014
В. М. Тищенко | М. В. Томіна | М. В. Дубенець
The article presents results of characteristics studying for generative and vegetative parts of soft winter wheat in the conditions of autumn moisture shortage and in the conditions of optimal moisture supply. During the period of studies a dramatic difference of the levels of generative and vegetative parts of plants has been observed. As a decreased level of characteristics development has been noted, so its increasing, in particular, among the varieties of generative part. within 7.2% (thousand seed weight) to 42.6% (seed weight per ear). It is found that efficient development of generative organs is subject to variety bushing capacity, in particular at spring. The article also shows that stress conditions of autumn period influence late emergence of seedlings; however, that goes along increased level of some characteristics development at generative part. Obviously, during such years the selection of breeding material as per ear yield would not be efficient. The article, for the purpose of excluding negative consequences of selection, pays special attention to such characteristics as that not affected by stress environmental conditions. This indicates genetic stability of those characteristics, so their use as marker characteristics in yield specific breeding is advised.
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