摘要
用 KNO3( 5g/ L)和 Na2 HPO4( 2 g/ L )及 KH2 PO4( 2 g/ L)组合成抗寒剂 ( I) ,混合比为 1∶ 1∶ 1处理水稻种子和喷施幼苗能减轻早春寒害对幼苗的损伤 ;在寒露风来临之际 ,用 KH2 PO4( 1 0 g/ L)、Na2 HPO4( 2 .5g/L)和尿素 ( 1 0 g/ L)组成的抗寒剂 ( )混合比为 1∶ 1∶ 1喷施稻叶面能提高植株的抗冷性 ,促进颖花开裂 ,增加受精率和结实率 。
Cold resistant agent I Remarkable decrease of aritificial spring cold injury on seedling of paddy rice was found after application of cold resistant agent Ⅰ in a model system.Spray of cold resistant agent Ⅱ to heading stage rice in a mimic late autumn coldness model also resulted in significant cold resistant capability,enhanced the rate of fertilization and seed set ratio,as well as lessened the decrease of yield.
出处
《生命科学研究》
CAS
CSCD
2001年第1期80-83,共4页
Life Science Research
基金
国家科技部水稻工程资助项目!(95 -0 0 1-0 1-0 4)
关键词
水稻
抗寒剂
施用效应
paddy rice
cold resistant agent
effect
