摘要
试验结果表明谷子在—１３．９Ｐａ的负压下发芽率只有２４．０％，在—１６．７３Ｐａ时发芽率为１６．３％。用０．５％的ＮＭ—１号抗旱剂包衣后，在—１６．７３Ｐａ的负压下发芽率可达６５．６％，比对照提高４９．３％。同０．５％的ＮＭ—１抗旱剂在大豆现蕾期喷施叶面１次，相对收获株率为１１５．３８％，相对千粒量为１０７．７％，增产率为４０，２７％。玉米在６叶期喷施０．５％的抗旱剂后，饱和亏减少４．０９ｇ，是对照的４３．８１％；干物质积累比对照快６７．１９％，蒸腾系数减少８．３６ｇ。
The results showed that under the conditions of 13.9Pa and 16.73Pa,the germination rates of millet can only reach 24%and 16.3%, respectively. Using 0.5%NM 1drought resistance agent to encapsulate the grains of millet,the germination ratecan be as high as 65.6%under 16.73Pa. After spraying 0.5%NM 1drought resis- tance agent to the sogbean plants in flower bed phase,the relative harvested plant rate was115.38%and the relative 1000 seed weight was 107.7%in maturity phase. The rate ofyield increase was 40.27%。After spraying 0.5%NM 1 drought resistance agent to maizein 6 leaves stage,the water saturation deficit(WSD)was reduced 4.09 grams,which were43.81%of the check. The accumulation rate of dry matter increased 0.68 grams/plant·day,which were 67.19%of the check.The transpiration coefficiert reduced 8.36 grams.
基金
国家自然基金
关键词
相对发芽率
饱和亏
蒸腾系数
抗旱剂
relative germination rate,water saturation deficit,transpiration coeffi- cient.
