摘要
试验对先玉335、郑单958、吉单198、农华101 4个玉米品种在不同种植密度下的子粒灌浆速率及产量进行对比分析。结果表明:不同玉米品种灌浆速率曲线不同,在9万株/hm2种植密度下"先玉335"子粒灌浆效率最高。在相同灌浆持续期内,9万株/hm2的种植密度下,"先玉335"群体子粒产量高于其他3个品种。相同种植密度与灌浆持续期下,灌浆速率的高低决定了子粒群体产量。试验中"先玉335"各项产量指标较优,利于提高半干旱地区玉米产量。
The comparative analysis of yield and grain-filling rates of maize varieties of xianyu 335,zhengdan 958,nonghua 101,jidan 198 under different planting densities was carried out.The results show that grain-filling rate curves of different maize varieties were different.Grain-filling efficiency of xianyu 335 at the planting density 90 000 plants per hectare was the highest.Within the same grain-filling duration,under the planting density of 90 000 plants per hectare,grain yield of xianyu 335 was higher than that of any other three varieties.Under different planting densities and grain-filling durations,filling rate level determined grain yield.Yield indicators of xianyu 335 were better in the tests,good for the increase of maize yield in the semiarid area.
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2013年第3期273-277,共5页
Journal of Jilin Agricultural University
基金
国家粮食丰产工程项目(2011BAD16B10)
吉林省财政厅农业综合开发科技示范项目(20110530)
"863"计划项目(2011AA100504)
吉林省科技发展计划项目(20100210)
吉林省科技发展重大项目(20116031)
关键词
半干旱地区
玉米
灌浆速率
种植密度
产量
吉林省
semiarid area
maize
grain-filling rate
planting density
yield
Jilin province
