摘要
为全面了解云麦74品种特性和推广应用价值,根据2014~2015年云南省小麦区域试验和2016年云南省生产试验汇总资料,对云麦74的丰产性、稳产性及产量构成因素对产量的影响进行统计分析。结果表明:云麦74区试平均产量4638.22 kg/hm^2,比对照增产3.75%,具有小的变异系数和大的高稳系数,表现出良好的稳产性和适应性。穗粒数和有效穗数与产量呈极显著正相关,千粒重与产量呈负相关。穗粒数是影响云麦74产量的主要因素。综合分析,云麦74是一个具有高产潜力,稳产性强的品种,可通过适期追施拔节肥,增加穗粒数来提高产量。
In order to fully understand the variety characteristics of Yunmai 74 and its application value,based on the data of Yunnan regional wheat test in 2014-2015 and Yunnan provincial production test in 2016,regression and path analysis were carried out on the effects of three factors on yield:fertility,stability and yield of Yunmai 74.The results showed that the average yield of Yunmai 74 regional test was 4638.22 kg/hm^2,which was 3.75% higher than that of the control.It had a small coefficient of variation and a high coefficient of stability,showing stability and adaptability.The number of grains per panicle and effective panicles were positively correlated with yield,while 1000-grain weight was negatively correlated with yield.The number of grains per panicle was the main factor affecting the yield of Yunmai 74.Comprehensive analysis shows that Yunmai 74 is a variety with high yield potential and strong stability.Its yield can be increased by topdressing jointing fertilizer at suitable time to increase the number of grains per ear.
作者
王志龙
程加省
杨金华
王志伟
乔祥梅
程耿
黄锦
于亚雄
WANG Zhilong;CHENG Jiasheng;YANG Jinhua;WANG Zhiwei;QIAO Xiangmei;CHENG Geng;HUANG Jin;YU Yaxiong(Grain Crops Research Institute /Yunnan Sub - center of National Wheat Improvement Center,Yunnan Academy of Agricultural Sciences,Kunming,Yunnan 650205,China)
出处
《作物研究》
2019年第6期543-546,共4页
Crop Research
基金
国家重点研发计划“七大作物育种”重点专项(2017YFD0100904)
国家小麦现代农业产业技术体系(CARS-03-2-43)
关键词
小麦
丰产性
稳产性
产量构成
云麦74
wheat
high yield
yield stability
yield components
Yunmai 74
