四川农业大学学报 ›› 2001, Vol. 19 ›› Issue (04): 344-347.doi: 10.16036/j.issn.1000-2650.2001.04.008

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烯效唑和密度对小麦产量及其构成的影响

杨文钰, 韩惠芳   

  1. 四川农业大学 农学院, 四川 雅安 625014
  • 收稿日期:2001-09-01 出版日期:2001-12-31 发布日期:2017-03-06
  • 基金资助:
    四川省人事厅省学术技术带头人培养基金资助

Effects of S3307 and Density on Wheat Yield

YANG Wen-yu, HAN Hui-fang   

  1. College of Agriculture, Sichuan Agricultural University, Yaan 625014, Sichuan, China
  • Received:2001-09-01 Online:2001-12-31 Published:2017-03-06

摘要: 研究了烯效唑拌种浓度和密度及其互作对小麦产量及其构成的影响。结果表明:不同浓度烯效唑拌种对小麦有显著的增产作用,以20mg/kg为佳;密度不同,小麦产量也有极显著差异;烯效唑拌种浓度和密度的互作达极显著差异,以中等浓度(20mg/kg)和较高密度(180×104~270×104hm-2)配合最佳。随着基本苗的增加,单株成穗数、单穗粒数和千粒重有所下降,适当浓度(20mg/kg)的烯效唑拌种可以缓减密度带来的负效应。烯效唑拌种对小麦单位面积穗数、穗粒数、千粒重有明显的正效应,以20mg/kg表现最优。

关键词: 烯效唑, 密度, 小麦, 产量

Abstract: The effects of different S3307 concentrations(0, 10, 20, 40mg/kg), densities(90×104, 180×104, 270×104hm-2) and their interaction on wheat yield components were studied. The results show as follows. S3307 applied to seed increased yield significantly and 20mg/kg is the best. The different plant density treatments also significantly affect wheat yield. Moreover, the high yield is available at the composition of 180×104~270×104hm-2(density) and 20mg/kg(S3307). Ear number per plant, grain number per ear and 1000 grain weight decrease as the density increases. Fortunately this negative effect is relaxed by medium S3307(20mg/kg). S3307 has positive effect on ear number per unit, grain number per ear and 1000 grain weight. Among S3307 Concentrations 20mg/kg is the best.

Key words: S3307, DENSITY, WHEAT, YIELD

中图分类号: 

  • S512.1