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1.在棉花盛花期用5mM2,3—环氧丙酸溶液喷洒整株棉叶,对照则用等容量清水喷洒,然后定时从喷药与对照株上取第四片功能叶作乙醇酸定量分析,并观察气孔开度,测量净同率。结果表明5mM2,3—环氧丙酸溶液对棉叶乙醇酸合成的抑制效率最高可达20.7％。抑制效率依喷药后时间延长而下降,到第6天,其抑制率趋近于零。对气孔丌度与净同化的影响率则不显著。2.要棉花盛花期,按上述方法每隔5天喷药一次,共喷5次,考察喷药对棉铃生长发育,幼铃脱落,铃重,籽棉重,衣分值的影响,发现其影响也不显著。
1. Spraying the whole plant cotton with 5mM 2,3-epoxypropionic acid solution in the flowering period of cotton, while the control was sprayed with the same volume of water, and then the fourth function leaf was sprayed regularly with the control to make glycolic acid quantitative analysis , And observe the stomatal opening, measuring the net same rate. The results showed that 5mM 2,3-epoxypropionate could inhibit the synthesis of cotton acid glycolic acid by up to 20.7%. Inhibition efficiency decreased with time after spraying. By day 6, the inhibition rate approached zero. The effect of stomatal aperture and net assimilation was not significant. 2. To flowering cotton, spray 5 times a day for 5 times as above to investigate the effect of spray on the growth and development of cotton bolls, shedding of young bell, boll weight, seed cotton weight and clothing score. Not significant either.