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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (18): 92-95.doi: 10.11924/j.issn.1000-6850.casb14120191

• 农学 农业基础科学 • 上一篇    下一篇

播期对苦荞品种主要农艺性状及产量的影响

李春花,王艳青,卢文洁,王莉花   

  1. (云南省农业科学院生物技术与种质资源研究所/云南省农业生物技术重点实验室/农业部西南作物基因资源与种质创制重点实验室,昆明 650223）
  • 收稿日期:2014-12-29 修回日期:2015-06-11 接受日期:2015-02-25 出版日期:2015-07-27 发布日期:2015-07-27
  • 通讯作者: 王莉花
  • 基金资助:
    国家燕麦荞麦产业技术体系“荞麦病虫草害防控岗位”(CARS-08-C-2)；国家自然科学基金委员会地区科学基金项目“米苦荞易脱壳性的遗传特性和分子标记研究”(31460379)；云南省社会发展科技计划“稻类、普通菜豆、荞麦地方品种的高效利用研究”(2012CH009)。

Effect of Sowing Date on Main Agronomic Traits and Yield of Tartary Buckwheat Varieties

Li Chunhua, Wang Yanqing, Lu Wenjie, Wang Lihua   

  1. (Biotechnology and Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences/Yunnan Provincial Key Lab of Agricultural Biotechnology/ Key Lab of Southwestern Crop Gene Resources and Germplasm Innovation, Ministry of Agriculture, Kunming 650223)
  • Received:2014-12-29 Revised:2015-06-11 Accepted:2015-02-25 Online:2015-07-27 Published:2015-07-27

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摘要： 为了探讨苦荞品种在云南昆明周围夏播的优质高产栽培的最佳播期，以3个品种（‘云荞1号’、‘迪苦一号’、‘晋苦6号’）为供试材料，研究了4个播期（6月25日、7月5日、7月15日、7月25日）对其生育期、农艺性状及产量性状的影响。结果表明，随着播期的迟延，3个苦荞品种的生育期均明显缩短，而株高、主茎节数、一级分枝数随着播期的迟延，没有规律性的减少或增加，而株粒数、千粒重、株粒重及产量都随着播期的推后均有降低的趋势。并且3个品种在产量上分别与早播（6月25日）比，7月5日减产69.4%~74.8%，7月15日减产61.4%~93.3%，7月25日减产88.3%~94.7%。在本试验条件下，云南夏播苦荞的优质与高产相结合的最佳播期是6月25日，使产量达到最高水平。

关键词: 番茄成熟, 番茄成熟, LeMADS-MC, 克隆, 表达载体

Abstract: In order to obtain the optimum sowing date of summer tartary buckwheat for high yield and better quality around Yunnan Kunming, three varieties (‘Yunqiao 1’, ‘Diku 1’ and ‘Jinku 6’) were selected to study the effects of four sowing date (June 25, July 5, July 15, July 25) on growth period, agronomic and yield traits. The results showed that, with the delaying of sowing date, the growth period of three tartary buckwheat varieties were all significantly shortened. The height, first branch number and stem node number had no systematic increase or decrease with the delaying of sowing date for all the three tartary buckwheat varieties. The number of seeds per plant, the thousand kernel weight, seed weight per plant and yield increased with the delaying of sowing date. Compared with early sowing (June 25), the yield of three varieties reduced by 69.4%-74.8% for sowing on July 5, reduced by 61.4%-93.3% for sowing on July 15 and reduced by 88.3%-94.7% for sowing on July 25. In this study, the suitable sowing date of summer tartary buckwheat for high yield and better quality in Yunnan was June 25, which could achieve the highest yield.