| 李惠珠，刘朝东，傅荣富，陶计叁，蔡志鑫.不同栽插苗数和密度对华航31 号群体分蘖动态及产量构成的影响[J].广东农业科学,2017,44(5):1-6 |
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不同栽插苗数和密度对华航31 号群体分蘖动态及产量构成的影响 |
| Effects of different seedlings per hill and planting densities on tillering dynamics and yield components of rice cultivarhuahang No.31 |
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| DOI：10.16768/j.issn.1004-874X.2017.05.001 |
| 中文关键词: 种植模式 华航31 号 栽插苗数 密度 分蘖动态 产量构成 |
| 英文关键词: cultivation method huahang No.31 seedlings per hill planting densities tillering dynamics yield components |
| 基金项目:国家水稻产业技术体系（CARS-01） |
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| 中文摘要: |
| 以超级稻品种华航31 号为试材，研究不同栽插苗数（A）与种植密度（D）配置方式下的水稻
群体分蘖动态及产量特征，寻求适合华航31 号的最佳种植模式，实现水稻高产稳产。结果表明：在每穴插
植苗数相同的条件下，分蘖增长和消减速度为D1 ＞ D2 ＞ D3，在种植密度相同的条件下，分蘖增长和消减
速度为A6 ＞ A4 ＞ A2 ＞ A1；不同的插植苗数和种植密度配置处理对华航31 号的产量均有显著或极显著
的影响，影响效应为A ＞ D ＞ A×D，其中每穴栽插苗数为2 苗、种植密度为24 万穴/hm2 的处理组合产量
最高，折合产量为6 584.0 kg/hm2。因此，在实际生产中，适当减少栽插苗数，合理密植，更有利于协调群体
和个体的关系，发挥华航31 号高产的潜力。 |
| 英文摘要: |
| To obtain the best cultivation method and achieve high and stable yield of rice，super rice huahang
No.31 was selected as the experimental material to study the tillering dynamics and yield characteristics under
different seedlings per hill（ A）and planting densities（D）. The results showed that under the same conditions
of seedlings per hill，the growth and cutting rate of tillers was D1>D2>D3. Under the same conditions of planting
densities，the growth and cutting rate of tillers was A6>A4>A2>A1. The effects of seedlings per hill and planting
densities on yield of huahang No.31 were significant or very significant . The order of influence effect was A ＞ D ＞
A×D. The treatment A2D2 with 2 seedlings per hill and planting density 2.4×105 collections/hm2 had the highest
yield of 6 584.0 kg/hm2. In the actual production，suitable decreasing seedlings per hill and suitable planting density
will be helpful to coordinate the relation between groups and individuals，and exert the high yield potential of huahang
No.31. |
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