摘要
选用甜高粱品种原甜1号,在拔节后第20天叶面喷施一次调环酸钙-青鲜素复配剂,设2.6、5.2和10.4mg/m23个处理,研究了不同用量调环酸钙-青鲜素复配剂对甜高粱株高和倒伏的影响。试验结果表明,处理后14 d内复配剂处理植株高度和日生长量显著下降;甜高粱在开花前倒伏率显著降低,10.4 mg/m2处理倒伏率比对照降低了70.9%。各复配剂处理使植株后期生长出现反弹,灌浆期植株倒伏率增加,达到52%~65%,与对照无显著差异。根倒伏是对照区植株主要倒伏类型,茎倒伏是复配剂处理植株主要倒伏类型。
Lodging is one of the major problem in Sweet sorghum(Sorghum bicolor(L.) Moench) production due to its high yield and plant height.Sweet sorghum variety Yuantian-1 was studied in this research,and it was treated with foliarly spray with the Ca-prohexadione and maleic-hydrazide mixture at rates of 2.6 mg/m2,5.2 mg/m2and 10.4 mg/m2 at Day-20 after jointing stage in order to investigate the effects of the mixture on plant height and lodging of sweet sorghum.The result showed that plant growth was decreased eff...
出处
《中国农业大学学报》
CAS
CSCD
北大核心
2009年第1期73-76,共4页
Journal of China Agricultural University
基金
国家"十一五"科技支撑计划课题资助(2006BAD07A04)
公益性行业(农业)科研专项经费项目(nyhyzx07-011)
关键词
调环酸钙-青鲜素复配剂
甜高粱
倒伏
株高
Ca-prohexadione and maleic-hydrazide mixture
sweet sorghum
lodging
plant height
