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中国农学通报 ›› 2016, Vol. 32 ›› Issue (13): 97-102.doi: 10.11924/j.issn.1000-6850.casb16020007

所属专题: 生物技术

• 林学 园艺 园林 • 上一篇    下一篇

行距配置和种植密度对薏苡光合生理、籽粒灌浆及产量的影响

钱茂翔,李艾莲   

  1. 中国医学科学院 北京协和医学院药用植物研究所,中国医学科学院 北京协和医学院药用植物研究所
  • 收稿日期:2016-02-01 修回日期:2016-02-24 接受日期:2016-03-17 出版日期:2016-05-17 发布日期:2016-05-17
  • 通讯作者: 李艾莲
  • 基金资助:
    科技部科技基础性工作专项“常用道地药材及其产区的特征、标准及数字化—道地药材薏苡仁特征数据的收集和整理”(2015FY111500-042)。

Effects of Row Spacing and Planting Density on Photosynthesis, Grain-filling and Yield of Coix Lacryrma-jobi

  • Received:2016-02-01 Revised:2016-02-24 Accepted:2016-03-17 Online:2016-05-17 Published:2016-05-17

摘要: 为薏苡高产栽培提供参考依据,采用2 因素裂区设计,设置2 种行距(等行距、宽窄行)和4 种密度(7 万、6 万、5 万、4 万株/hm2),研究不同的种植方式对薏苡花后光合生理、籽粒灌浆及产量的影响。结果表明:宽窄行种植改善了薏苡的群体结构,提高了叶片光合性能和籽粒灌浆能力,与等行距种植的薏苡相比,4 种密度种植的薏苡产量分别提高7.87%、7.90%、7.87%和8.75%;种植密度对薏苡产量影响显著,2 种行距配置的薏苡都以种植密度为5 万株/hm2时产量最高,分别达到4544.1、4901.9 kg/hm2。薏苡的适宜种植密度为5万株/hm2,宽窄行种植是薏苡高产栽培的有效措施。

关键词: 水稻, 水稻, 温度, 水分, 析因设计, 发芽率

Abstract: In order to provide reference for high-yield cultivation of Coix lacryrma- jobi, an experiment was conducted to study the effects of 2 row-spacing (equidistant row and wide-narrow row) and 4 planting densities (70000, 60000, 50000, 40000 plants/hm2) on photosynthesis, grain-filling and yield of Coix lacryrma-jobi with two factors split plot design. The results showed that: compared with the method of the equidistant row cultivation, the method of wide- narrow row cultivation improved population structure, photosynthetic performance and capacity of grain-filling, and the yield under the 4 planting densities increased by 7.87%, 7.90%, 7.87% and 8.75%, respectively. Planting density had significant effect on the yield of Coix lacryrmajobi. The highest yield (4544.1 and 4901.9 kg/hm2 for equidistant row cultivation and wide- narrow row cultivation) were observed under 50000 plants/hm2. Thus, the best planting density was 50000 plants/hm2, and the method of wide-narrow row cultivation was an effective measure to increase the yield ofCoix lacryrma-jobi .

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