The Effect Of Different Planting Methods And Sowing On The Soybean’s Growth, Metabolic Enzyme And Seed Vigor

The varities of summer soybean gong xuan 1, nandou 12 are used in this experiment. to study the growth process of summer soybean seed under three sowing dates, seed development process sugar nitrogen metabolism, enzyme late seed maturation protection systems, yield and composition factors influence, the main research results are as follows:(1) Sowing impact on the performance of different varieties of summer soybean significant growth period, with the continuous advance of sowing, seedling (VE), vegetative growth (V), the whole growth period (VE-R8) is gradually reduced, and the growth period ratio (V/R) is gradually increasing, with delayed sowing date, two summer soybean varieties growth period shortened, analysis of variance showed that the sowing of the main factors affecting soybean growth stage length. The impact of summer soybean sowing methods of fertility was not significant.(2) Sowing the effects of different summer soybean varieties of seed development process nutrients changes with significant planting in Summer Soybean impact of different summer soybean seed varieties developmental processes nutrients change does not significantly under intercropping with net working conditions of its nutritional material changes in the law of similarity. Two sowing soybean varieties in the same period, different planting methods (intercropping, net for) the dynamic changes of nutrients under similar. Among them, the soluble sugar content in soybean seed development to maturation process of gradually reducing the average content of soluble sugar under intercropping were higher than the net for, but the difference was not significant; soluble protein content increased first and decreased total protein content is increased, as compared with a net, a net for protein content lower than under intercropping; after soybean flowering, fat accumulation is faster, slow decline in the late mature soybeans with total fat content and total net for the next planting conditions differences in protein content was not significant. The same species, the same species grown under way, with the seeds mature, there are differences in the effects of different sowing dates on various nutrients change. In this experiment, three sowing dates, with delayed sowing, soluble sugar content increased, the soluble sugar content June 29 reached the highest; soluble protein, crude fat, total protein content showed increased after the first decreased content of June 19 reached the highest seeded(3) Looking at the changes in the germination rate, germination index, SOD, POD, and other indicators of relative conductivity, higher vigor sowing the seeds of June 19. Select a tribute resilience higher than 12 Southern beans, suitable sowing seeds help to improve the vitality of the enzyme to protect the system. The same varieties of the same sowing the seed vigor index under two sowing methods found that intercropping overall vigor index were lower than the net for. Description of seed vigor index under intercropping conditions better than two soybean varieties for high net conditions, which affect intercropping with shade environment related.(4)Quite different effects of different sowing dates and varieties of summer soybean production. With the continued delay in sowing date, residential summer soybean production declined. More rain Ya’an, inter planting summer soybean yield is higher than the net as described in Ya’an June, intercropping favor of summer soybean yield formation.