摘要
研究了不同种植密度对华甜玉3号玉米鲜果穗产量及农艺性状的影响。研究结果表明,华甜玉3号在每667 m2种植3 000~4 000株范围内,随着种植密度的增加,鲜果穗产量呈先增后减趋势;从生育进程及穗部性状上看,华甜玉3号在种植密度为4 000株/667 m2时,表现为采收期提前、生育期缩短,但穗部性状变差,果穗变短,秃尖变长,穗粒数、百粒质量、出籽率、双穗率等明显降低;从鲜果穗产量上看,华甜玉3号在种植密度为3 500株/667 m2时,每667 m2鲜果穗产量最高,为1 158.40 kg。综合研究结果表明,华甜玉3号的最佳种植密度为3 500株/667 m2。
Effect of different planting density of Huatianyu No.3 on the yield and agronomic characters were studied.The results showed that the yield increased first and then decreased with the increasing density under different density as 3 000,3 500,4 000 plants/667 m2.At the aspect of the growth process and ear characteristics of Huatianyu No.3,the harvest time was advance and the growth period was shorten in density of 4 000 plants/667 m2.But the ear characters became worse,ear length became shorter and the length of bald tip became longer.Grains of a spike,100-grain weight,seed yield,double-ear traits and so on decreased obviously.The best planting density for the fresh ear yield was 3 500 plants per 667 m2.Under such condition,the highest yield of fresh ear reached 1 158.40 kg/667 m2.
出处
《长江蔬菜》
2011年第8期28-30,共3页
Journal of Changjiang Vegetables
关键词
超甜玉米
华甜玉3号
种植密度
产量
Super sweet corn
Huatianyu No.3
Planting density
Yield
