| 李 静1，2.两种生态条件下栽培密度对水稻LAI
及齐穗后粒叶比的影响[J].广东农业科学,2015,42(23):32-36 |
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两种生态条件下栽培密度对水稻LAI
及齐穗后粒叶比的影响 |
| Effects of planting density on rice LAI and grain-to-leaf ratioafter full heading stage under two different ecological conditions |
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| DOI： |
| 中文关键词: 水稻 生态条件 栽培密度 叶面积指数（LAI） 粒叶比 |
| 英文关键词: rice ecological condition planting density LAI grain-to-leaf ratio |
| 基金项目:四川省教育厅重点项目（13ZA0270）；四
川省教育厅青年基金（07ZB081 |
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| 中文摘要: |
| 以4 种不同类型水稻金优527、昌米011、9 优418、合系39 为材料，研究在西昌和雅安两种不同
生态条件下栽培密度对水稻LAI 及水稻齐穗后粒叶比的影响。结果表明：水稻各生育期的LAI 均随着栽培密
度的增加而增加，孕穗期前4 个水稻品种的LAI 均为西昌显著大于雅安，孕穗期后除昌米011 外的3 个水稻
品种的LAI 变为雅安大于西昌；高密栽培时水稻粒叶比有增大的趋势，齐穗10 d 至成熟期，西昌的水稻粒叶
比大于雅安。 |
| 英文摘要: |
| Four different varities of rice including Jingyou527，Changmi011，Jiuyou418 and Hexi39 were used
as materials to carry out field experiment in Xichang and Ya'an in order to study the effects of planting density on rice
LAI and grain-to-leaf ratio after full heading stage under the two different ecological conditions. The results showed
that，rice LAI at different growth stages increased with the increase of planting density，rice LAI of the four varieties
in Xichang were significantly higher than that in Ya'an before the booting stage，rice LAI of three varieties（except
for Changmi011）in Ya'an were significantly higher than that in Xichang after booting stage. Grain-to-leaf ratio had
the trend of increase in high density planting，and that in Xichang was larger than that in Ya'an from 10 days after full
heading stage to maturity stage. |
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