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田间条件下,在半干旱地区,通过对不同耐旱型大豆品种进行灌溉,探讨品种和灌溉对大豆生理性状及产量的影响。结果表明:灌溉提高了同一品种的LAI、株高、地上部生物产量、叶绿素含量,但却降低了根冠比值。同一处理,各时期地上部生物量表现为:R6>R4>R2,根冠比值表现为:R2>R4>R6。灌溉与品种均显著影响大豆产量的形成,且灌溉效应大于品种效应。灌溉提高了同一大豆品种的产量,但辽豆21产量提高的更多。同一灌溉条件下,辽豆14产量优于辽豆21。灌溉提高了大豆植株的株高、主茎节数、节间长度。同一灌溉条件下,辽豆14的株高、主茎节数高于辽豆21,但节间长度却低于辽豆21。
Field conditions, in semi-arid areas, through the irrigation of different drought-tolerant soybean varieties to explore the effects of varieties and irrigation on soybean physiological characteristics and yield. The results showed that irrigation increased the LAI, plant height, shoot biomass and chlorophyll content of the same variety, but decreased the root / shoot ratio. In the same treatment, the aboveground biomass showed: R6> R4> R2, and the root-shoot ratio was R2> R4> R6. Both irrigation and variety significantly affected the formation of soybean yield, and the irrigation effect was greater than the variety effect. Irrigation increased the production of the same soybean varieties, but Liao Dou 21 production increased more. Under the same irrigation condition, output of Liaodou 14 was better than that of Liaodou21. Irrigation increased the plant height of soybean plants, the number of main stems and internodes. Under the same irrigation condition, the plant height and number of main stems in Liaodou 14 were higher than those in Liaodou 21, but the internode length was lower than that in Liaodou 21.