花生新品种商花4号单粒播种模式初探

摘要

In order to explore a reasonable single-seed sowing mode for the new peanut variety Shanghua 4,the experiment adopted split-spot design and studied the effects of different plant density on characteris-tic and yield in peanut single-seed and double-seed sowing modes. The results showed that,with the in-creasing of sowing density,yield and pod number of per plant showed a decreasing trend,the full-pod rate and shelling percentage showed a increasing trend. The pod yield had no significant difference between the single-seed and double-seed sowing modes. The difference of peanut pod yield was significant among different plant densities. In the planting density of 22. 50 × 104 caves/ha,pod yields of single-seed and double-seed modes both reached the highest,6 991. 5 kg/ha and 6 758. 4 kg/ha,respectively,with no sig-nificant difference. In summary, single-seed sowing with planting density of 22. 50 × 104 caves/ha was able to achieve the target yield and increase economic benefits of Shanghua 4 .%为了探索花生新品种商花4号合理的单粒播种模式,采取裂区设计,研究单、双粒播不同种植密度对花生主要经济性状和产量的影响。结果表明：单、双粒播种单株生产力和单株结果数随密度增加而降低,饱果率和出仁率随密度增加而增加。单、双粒播荚果产量差异不显著,不同种植密度间花生荚果产量差异显著,单、双粒播种均在22.50万穴/hm2密度下产量达到最高,分别为6991.5、6758.4 kg/hm2,差异不显著。综合分析,商花4号单粒播种+22.50万穴/hm2的种植模式可以实现最佳产量,提高经济效益。