摘要
在小麦拔节期喷施壮丰安和抽穗期喷施增粒增重剂的初步研究表明:壮丰安具有缩短基部伸长节间、调节植株形态和促进幼穗生长的作用,但不影响幼穗的发育进程;壮丰实对籽粒发育的影响为灌浆初期速度较慢,中期以后速度较快;增粒增重剂除能增加单德结实粒数外,更能提高籽粒灌浆初期的灌浆速度,从而明显提高位重。壮丰安和增粒增重剂表现出一定的配合效应。因此,根据作物生长发育的特点和拟解决的问题,研究不同植物生长调节剂的相互作用和配合方式,具有一定的理论意义和应用价值。
In order to reduce the loss from wheat lodging and the grain weight unstability,which were main problems of high-yielding wheat production in Northern China, two mixedgrowth-regulating substances (Zhuang Feng An, ZFA as a growth retardant and Zeng LiZeng Zhong Ji, ZLZ as a growth enhancer) were used in this study. ZFA was applicd as fo-liar spray at. beginning of stem elongation stage, and the effect was found of decreasing thelengths of lower internodes and urper 3 leave blades, raising ear growth rate, and decreasingthe grain filling rate at earlier stage but, increasing the rate at later stage of grain filling pe-riod- ZLZ was sprayed at booting stage, and was found to increase the uppermost two in-ternode lengths, and to raise grain filling rate and 1000-grain weight. Because some coopra-tive effects between the two growth regulators were found in this study, further study theinteractions and cooprations between different growth regulators were of certain significantto theory and application.
出处
《中国农业大学学报》
CAS
CSCD
北大核心
1999年第1期77-81,共5页
Journal of China Agricultural University
基金
国家科委重点攻关项目