| 垄畦栽培水稻的植株形态与生理特性研究 |
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| 引用本文： | 章秀福,王丹英,屈衍艳,李华.垄畦栽培水稻的植株形态与生理特性研究[J].作物学报,2005,31(6):742-748. |
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| 作者姓名： | 章秀福 王丹英 屈衍艳 李华 |
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| 作者单位： | 中国水稻研究所，浙江杭州310006 |
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| 摘 要： | 以杂交稻协优9308和常规粳稻秀水110为材料，从水稻植株形态和生理特性方面研究了垄畦栽培高产、优质的农学基础。结果表明，（1）在植株形态上，与常规栽培相比，垄畦栽培后株高变矮、茎基部节间的直径和密度增加，单茎鞘重增加，植株抗倒性增强；生长前期叶面积扩展迅速，生长早期叶片薄，中、后期叶片厚而挺，群体光合生态
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| 关 键 词： | 水稻 垄畦栽培 形态特征 生理特性 |
| 收稿时间： | 2004-02-25 |
| 修稿时间： | 2004年2月25日 |
Morphological and Physiological Characteristics of Raised Bed-cultivated Rice |
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| ZHANG Xiu-fu,WANG Dan-ying,QU Yan-yan,LI Hua.Morphological and Physiological Characteristics of Raised Bed-cultivated Rice[J].Acta Agronomica Sinica,2005,31(6):742-748. |
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| Authors: | ZHANG Xiu-fu WANG Dan-ying QU Yan-yan LI Hua |
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| Institution: | China National Rice Research Institute, Hangzhou 310006, Zhejiang |
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| Abstract: | Indica cultivar Xieyou 9308 and japonica cultivar Xiushui 110 were used to study the morphological and physiological characteristics related to high yield and quality under raised bed cultivation. The results were as follows: (1) As compared to conventional cultivated rice, the bottom internode length of ridge cultivated rice was shorter, and the bottom internode diameter, density and sheath weight per stem were higher, so the lodging resistant capacity was better; the leaf grew faster in early growing period and with larger leaf area in tillering stage, which became thick and erect in full heading stage, so the population photosynthetic leaf area was larger; root amount was bigger and concentrated in the upper layer of soil at filling stage, so the capacity of nutrient absorption increased in raised bed-cultivated rice. (2)During grain-filling stage, the leaf to spikelet ratio was larger, chlorophyll content decreased more slowly, and plant senesced slowly in raised bed-cultivated rice than in conventional cultivated rice. In grain filling dynamics, during the first 2 weeks after flowering, the superior grains of raised bed cultivated rice had longer active grain-filling period and smaller grain-filling rate change. (3) In yield improvement effect, there was significant difference between ridging cultivated and conventional cultivated rice for Xieyou 9308 with high stem, long leaf and two-step grain filling character, but no significant difference for Xiushui 110 with relative low stem, higher lodging resistance, and thick and erect leaf. |
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| Keywords: | Rice Raised bed-cultivation Morphological characteristics Physiological characteristics |
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