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中国农学通报 ›› 2016, Vol. 32 ›› Issue (9): 52-57.doi: 10.11924/j.issn.1000-6850.casb15120109

所属专题: 玉米

• 农学 农业基础科学 • 上一篇    下一篇

不同玉米品种在不同化控剂作用下穗部性状与产量的研究

李慧明,段宏凯,平俊爱,李卫东,杜志宏,吕鑫   

  1. 山西省农业科学院高粱研究所,山西农业大学农学院,山西省农业科学院高粱研究所,山西农业大学农学院,山西省农业科学院高粱研究所,山西省农业科学院高粱研究所
  • 收稿日期:2015-12-18 修回日期:2016-02-03 接受日期:2016-02-24 出版日期:2016-03-29 发布日期:2016-03-29
  • 通讯作者: 李慧明
  • 基金资助:
    山西省财政支农“早熟玉米新品种晋单84 号的示范与推广”(ZYYF2015-03)。

Spike Traits and Yield of Maize Treated by Different Chemical Regulators

  • Received:2015-12-18 Revised:2016-02-03 Accepted:2016-02-24 Online:2016-03-29 Published:2016-03-29

摘要: 为不同玉米品种寻找出其最适的化控剂,以6 种不同的玉米杂交品种为主因素,以5 种不同的玉米化控剂处理为次因素,采用随机区组设计研究不同化控剂处理对玉米穗部性状与产量的影响。每个小区随机抽取10 穗考种,测其穗部性状,用其籽粒产量折算其群体产量。研究结果表明:在相同品种下,矮壮素较其他化控剂处理对穗部性状的影响显著,高玉金不适合对试验进行化控处理,产量与轴粗、穗粗和行粒数成正比关系;在不同化控剂处理下穗重、穗粒重与穗长与玉米群体产量密切相关,百粒重对品种的产量影响很小,‘协玉5 号’适合通过化控剂处理来提高穗部性状的表现。不同的玉米品种应采用不同的化控剂,没有一种化控剂可以同时满足各种品种。

关键词: ‘陕512’, ‘陕512’, 基因累加, 性状聚合, 杂交策略, 选育技术

Abstract: The aim was to find the optimum chemical regulators for different maize varieties. Six maize varieties were used as the principal factor, and treatments of five chemical regulators were used as the secondary factor. The effects of different chemical regulators on the spike traits and yield of maize were studied with randomized block design. Ten spikes were selected randomly in every block. The spike traits were detected, and the grain yield was converted into the population yield. The results showed that for the same variety, CCC had significant effect on the spike traits compared with other chemical regulators. Gaoyujin were not suitable for chemical regulating on tested varieties. Yield was proportional to axle thickness, spike thickness and kernels per row. In addition, spike weight, spike grain weight and spike length were closely related to the population yield of maize under different treatments, and hundred-grain weight had the minimum impact on the yield.‘Xieyu 5’was fit for improving the spike traits with chemical regulators. So different chemical regulators should be adopted according to different maize varieties, no chemical regulator could satisfy all maize varieties.