The article provides summary of Peppermint examination on drought resistant with application of biotechnological breeding methods based on utilization of chemical mutagen PEG-6000 and multiplication by cloning in the culture of tissues and organs in vitro.

The article displays economical value, as well as directions of use for valuable protein crop, soybean, as well as growth rate of its production during recent years in the world scale and in our country, establishment of its varietal resources in Ukraine. Complete description for new soybean varieties listed in the State Register of Plant Varieties Suitable for Dissemination in Ukraine is provided for those having Official Description.

The author has reserched the resistance of scab-immune apple cultivarsbelonging to different ecological and geographical groups to unfavorable water regime conditions and temperature stressors in summer. The comparative studies of their drought and heat-resistance have been carried out. According to the complex of the water regime idexes the cvs "Orlovskoye Polyesye", "Florina", "Imant", "Amulet" and "Vitos" have been seleted as the most drought-adapted and higt heat-resistant.

The drought-resistance of 15 nectarine varieties and forms with a sign of male infertility is studied. The research identified genotypes with varying degrees of drought-resistance. The greatest degree of drought-resistance demonstrated the form 33-3-1, 512-86,41-15-2, and grade Kul'dzhinskiy 4x, Krymtsuht, Elbertaziya.

Analyzes of national varietal resources of white cabbage by maturity groups has been conducted. Correlative ties of quantitative characteristics of bearing organs of white cabbage (Brassika oleraceae L. var. capitata (L.) Alba DC.) are explained and grounded scientifically with morphological characteristics indicated.

У F2 проведено гібридологічний аналіз 80 сімей реципрокних гібридів від схрещування зразків жита з ознаками високорослості, звисаючої листкової пластинки, воскового нальоту (hlhlElElWcWc (сорт В’ятка 2) з новим донором альтернативних ознак – домінантної короткостеблості, рецесивних еректоїдності і відсутності воскового нальоту на листках і стеблах (HlHlelelwcwc). Дослід проведено за однаковою схемою у трьох екологічних місцях: Носівській СДС, Верхняцькій СДС і Волинському ІАПВ. Вперше отримані результати, які відповідають тригібридній схемі розщеплення відповідно до 27;9;9;9;3;3;3;1, повсюдно в цілому. Аналіз достовірно підтвердив розщеплення по трьох парах незалежних генів.

Частный приусадебный сектор в Республике Беларусь, не взирая ни на какие экономические трудности, стабильно развивается. Частники, как и основные сельхозпроизводители, хотят видеть у себя на грядках или на полях новые продуктивные сорта в широком ассортименте с гарантированным результатом осенью во время уборки урожая. Причем требование любителя-овощевода также может заключаться не только в высоком урожае, но и в получении экзотического результата, например, перцев ультрафиолетового цвета, вкусных арбузов, выращенных в условиях Беларуси и т. д.

Expediency explanation is provided for foundation in the Ukrainian Institute for Plant Variety Examination of Winter Wheat Varieties Resistance to Abiotic Environment Factors Diagnostics Laboratory, as well as for examination of varieties on their suitability for dissemination to provide new approaches and techniques of plant varieties resistance diagnostics; for systematic, indepth and comprehensive studying of the most important adaptive features of plant varieties, which to take into account when registering varieties, national varietal resources formation and seed production organization.

The perspective hybrid forms between genus Prunus persica (L.) Batch and Prunus amygdalus Batsch, having high ornamental qualities and high resistance to Sphaerotheca pannosa (L v.) var. persicae Woronich., Taphrina deformans (Berk.) Tul., Clasterosporium carpophilum (L. v) Aderh., Monilia cinerea Bonord. have been obtained for using in breeding of peach and nectarine varieties and their rootstocks.

The estimation of drought hardiness of sea buckthorn varieties of different environmental and geographical origin was made in the field and laboratory conditions. In late August the drought hardiness was estimated according to leaf injures and abscission in the field conditions. In the laboratory conditions were determined the main characteristics of water regime: tissue water saturation, water deficit, leaf water retaining ability. As a consequence, the studied varieties were divided into groups with different drought hardiness degree.