小麦“粒重保”的研制与应用

Preparation and Application of“Lizhongbao”in Winter Wheat

河南省小麦生育后期,高温、多雨等主要不利生态因子常常严重影响子粒灌浆与正常成熟过程。粒重产生波动的关键时段是5月26日～5月30日。用激素等化学药物复配而成的“粒重保”于5月20日～5月23日之间喷洒,可有效地防御高温等障碍因素产生的危害,一般可提高千粒重3.40g 左右,提高幅度达11.41%。

The disadvantageous ecological factors of high temperature,raini-ness,etc.often seriously influence the process of grain filling and maturityin later stage of winter wheat development in Henan province.The main pe-riod of fluctuations of 1000—grain weight is May 26～30.Spraying“Lizhong-bao”compounded of Chemicals—hormone and so on in the period of May20～23 can effectively prevent the damage.In general,the 1000—grain wei-ght may increase by 3.49,or 11.41%.