摘要
[目的]对4个供试玉米(Zea mays L.)新品种的农艺性状进行测定和分析,筛选适宜赤峰地区机械化种植的玉米新品种。[方法]4个玉米品种分别为先玉335、农华101、KX4574和NK718,种植面积分别为0.187、0.133、0.187、0.213 hm2,行距50.0 cm,株距26.7cm,理论种植密度75 000株/hm2。[结果]4个玉米新品种都比较适合在赤峰市松山区种植。各品种生长发育良好,抗逆性强。先玉335产量最高,平均为14 875.5 kg/hm2,表现为穗粒数最多,出子率最高;NK718平均产量为13 758.0 kg/hm2,表现为单位面积穗数最多,百粒重最重;KX4574平均产量为12 985.5 kg/hm2,表现为穗长最长,秃尖最小,穗粒重最重;农华101平均产量为12 192.0 kg/hm2,其中穗粒数、百粒重和出子率均较低,这是影响其产量的主要因素。[结论]该研究可为提高赤峰地区玉米机械化利用率,切实实现增产、增效、增收入提供参考。
[Objective] The aim was to determine and analyze the agronomic traits of 4 new maize cultivars,and to screen the new maize cultivars suitable for mechanization planting in Chifeng Area.[Method] Four new maize cultivars were Xianyu 335,Nonghua 101,KX4574 and NK718,the planting area were 0.187,0.133,0.187 and 0.213 hm2,resp.,the row spacing was 50.0 cm,and the distance between two plants was 26.7 cm,so the theoretical planting density was 75 000 plants/hm2.[Result] Four new maize cultivars were all suitable for planting in Chifeng Area.All cultivars grew better,and had strong resistance.The yield of Xianyu 355 was the highest which was 14 875.5 kg/hm2,showed that the kernels per spike was the most and the seed rate was the highest; the yield of NK718 was 13 758.0 kg/hm2,showed that the spike number per area was the most,and the 100-kernel weight was the weightiest; the yield of KX4574 was 12 985.5 kg/hm2,showed that the spike length was the longest,and the barren tip was the smallest,and the kernel weight was the weightiest ; the yield of Nonghua 101 was 12 192.0 kg/hm2,its the kernels per spike,the 100-kernel weight and the seed rate were all lower,this was the main factors influencing its yield.[Conclusion] The study provides a reference for improving maize mechanization utilization rate in Chifeng Area,and realizing to increase yield,efficiency and income conscientiously.
出处
《安徽农业科学》
CAS
2014年第21期6968-6969,6972,共3页
Journal of Anhui Agricultural Sciences
基金
国家现代农业产业技术体系项目(CARS-02-31)
国家科技支撑计划"十二五"国家粮食丰产科技工程项目(2011BAD16B13)
关键词
玉米新品种
机械化
农艺性状
赤峰地区
New maize cultivars
Mechanization
Agronomic traits
Chifeng Area
