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INHERITANCE PECULIARITIES OF 4-SEED BEANS AND 1000 SEEDS’ MASS OF SOYBEAN HYBRID F1
06.00.00 Agricultural sciences
Description
Biometrical analysis of parents’ forms and hybrids F1 is accomplished; inheritance types of 4-seed beans and 1000 seeds’ mass are established. A degree of domination and value of heterosis and GСA and SCA is determined as well
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CREATION OF THE INDICATIVE AND GENETIC COLLECTION OF THE LARGE-MASS GRAIN OF THE GRAIN SORGHUM
06.00.00 Agricultural sciences
Description
The inheritance of the “mass of 1000 grains” sign in the hybrids F1 and F2 was studied. Differences in the parental forms with 1-5 pairs of genes are revealed. The sources and the donors of the large-mass of grain are pointed, the indicative and genetic collections of the large-mass of grain forms of the grain sorghum are created
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EFFICIENCY OF SELECTION ON HIGH TILLERING AT VARIOUS DENSITY OF PLANTING OF RICE PLANTS
06.00.00 Agricultural sciences
Description
In the article, the estimation of efficiency of selection on high tillering is given at various planting density. For the analysis used plants of variety Lampo with high tillering ability and varieties the Virazh and Ko-mandor - with weak tillering ability, and hybrid popu-lations F3 from their crossing, selected on traits high and low tillering from F2. Plants ¬ placed on plots in three variants: 2×15, 15×15, 30×30 cm. It is estab-lished that distinctions on tillering between “+” and “–” selection in following generation remain, though the value of given trait at hybrid plants decrease. Selection of highly tillering forms at usual density (2×15 cm) has shown high efficiency, because the tillering is caused by more influence of genetic factors, than environment in the given variant
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