摘要
以国审玉米杂交种沈玉33为试材,按种子质量进行分级,设大粒种、中粒种、小粒种和混合粒种4个处理,研究不同种子分级对玉米产量及产量构成因素的影响。研究结果表明:种子质量分级对玉米产量和产量构成要素存在显著影响。同一品种,大粒种对产量及千粒重均有正向作用,显著大于中、小粒种和混合粒种;小粒种播种,表现为产量、有效穗数和千粒重较低,显著低于中粒种、混合粒种。
The effect of seed grading on maize yield and yield components were studied using the maize hybrid No. 33. The results show that the yield and the weight of 1 000 grains of big grain seed was obviously higher than that of middle grain seed, mixed grain seed and small grain seed, and reached the significant level. The yield and the components of small grain seed were lower than that of others.
出处
《辽宁农业科学》
2016年第6期80-81,共2页
Liaoning Agricultural Sciences
