The data of using of gibberellin for seed production in maternal forms of bee pollinated cucumber F1 hybrids, Black F1, and Frant F1 are shown.

Trial was carried out to survey the different rates of new generation post-emergence herbicide 'Verdict' in four levels involving: 0, 0.2, 0.3 and 0.5 kg ha-1 to suppress three weeds species; Chenopodium album, Poaceae sp. and Stelaria media. Experiment was conducted in a completely randomized design [CRD] with four treatments in four replications. Weeds growth diminished mostly for verdict 0.5 kg ha-1 and then 0.3 kg ha-1 compared to 0.2 kg ha-1 and control, results of the trial revealed that a satisfactory survival reduction of Chenopodium album, poaceae and also Stelaria media were achieved with labeled-dose of verdict as 0.5 kg ha-1 and also intermediate dose 0.3 kg ha-1. In contrast, the minimum dose 0.2 kg ha-1 had a significantly highest weeds survival about three varieties of mentioned weeds in comparison with other higher doses of herbicide.

The resistance of breeding verities of cabbage to Plasmodiophora brassicae on infection background in laboratory and field conditions of the Moscow region has been studied. Selected cabbage varieties resistant to Plasmodiophora brassicae are used in breeding process.

In field experiments, the optimal pre-irrigation moisture levels of the soil, plant density and fertilizer regulations to ensure maximizing the table beet crops with good qualities of roots under foothill zone of the Chechen Republic have been found.

The results of winter and spring sowing times of vegetable root crops of Brassicaceae family in protected area are presented. Five varieties and three hybrids of daikon, seven varieties of radish, and five varieties of turnip were studied. The minimal and maximal weight of roots for each sowing time was revealed. The average weight of products over three years of research was calculated.

The leaf-area duration and photosynthetic yield in early-maturing tomato varieties were studied in terms of planting system and degree of density of plants.

The irreciprocal self'incompatibility at site'specific hybridization of Capsicum annuum L. and its morphological features in the varieties of sweet pepper Belosnezhka and Karlik during pollination by other samples is described.

Reproductive biology of cultivated and wild plants determines the reproductive state of plants, the main basis of which is donor'acceptor system. Mechanisms of endogenic regulation of function of different organs are discussed.

The previously unknown and not wide spread pathogen of carrot, Trychothecium roseum L., was revealed. The etiology and pathogenicity of this pathogen were studied.

The perspective technology of development of melon of F1hybrids seeds by use maternal lines with an original form of genic mail sterility and marker trait (lobed leaves) was studied. Elements of technology allow developing hybrid seeds of melon with hybridity of 90-95%.