| 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 |
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| 引用本文： | 钱茂翔,李艾莲. 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[J]. 中国农学通报, 2016, 32(13): 97-102. DOI: 10.11924/j.issn.1000-6850.casb16020007 |
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| 作者姓名： | 钱茂翔 李艾莲 |
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| 作者单位： | 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 |
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| 基金项目： | 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)。 |
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| 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。
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| 关 键 词： | 水稻 水稻 温度 水分 析因设计 发芽率 |
| 收稿时间： | 2016-02-01 |
| 修稿时间： | 2016-02-24 |
Effects of Row Spacing and Planting Density on Photosynthesis, Grain-filling and Yield of Coix Lacryrma-jobi |
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| 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 rowcultivation) 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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| Keywords: | Coix Lacryrma-jobi row spacing planting density photosynthesis grain-filling yield |
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