| 机插籼稻干物质积累和抗倒伏能力分析 |
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| 引用本文： | 李贵勇,石美凤,何清兰,朱海平,夏琼梅,龙瑞平,邓安凤,杨从党. 机插籼稻干物质积累和抗倒伏能力分析[J]. 中国稻米, 2021, 27(5): 97-101. DOI: 10.3969/j.issn.1006-8082.2021.05.021 |
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| 作者姓名： | 李贵勇 石美凤 何清兰 朱海平 夏琼梅 龙瑞平 邓安凤 杨从党 |
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| 作者单位： | 1.云南省农业科学院 粮食作物研究所,昆明650205;2.永胜县三川镇农业综合服务中心,云南 永胜674207;3.永胜县农业技术推广中心,云南 永胜674200 |
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| 基金项目： | 云南省重大科技专项计划项目（202102AE 090004）;云南省财政部门预算项目重大专项（530000210000000013809）;云南省芒市优质米产业科技特派团（202104BI090025）;国家重点研发计划项目（2016YFD0300506,2017YFD030010203） |
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| 摘 要： | 为探讨机插籼稻品种的干物质积累、抗倒伏能力与产量的关系,对云南省大面积种植的19个机插籼稻品种的干物质量、倒伏指标、产量等农艺性状进行了调查分析.结果 表明,机插籼稻平均产量为11457.46 kg/hm2,分蘖至拔节期、拔节至抽穗期、抽穗至成熟期的干物质积累量分别占产量的23.14％、30.22％、83.71％,茎鞘...
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| 关 键 词： | 机插 水稻 干物质积累 抗倒伏能力 产量 |
| 收稿时间： | 2021-06-18 |
Analysis of Dry MatterAccumulation and Lodging Resistance of Machine-Transplanted Indica Rice |
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| Guiyong LI,Meifeng SHI,Qinglan HE,Haiping ZHU,Qiongmei XIA,Ruiping LONG,Anfeng DENG,Congdang YANG. Analysis of Dry MatterAccumulation and Lodging Resistance of Machine-Transplanted Indica Rice[J]. China Rice, 2021, 27(5): 97-101. DOI: 10.3969/j.issn.1006-8082.2021.05.021 |
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| Authors: | Guiyong LI Meifeng SHI Qinglan HE Haiping ZHU Qiongmei XIA Ruiping LONG Anfeng DENG Congdang YANG |
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| Affiliation: | 1.Food Crops Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205, China;2.Comprehensive Agricultural Service Center of Sanchuan Town, Yongsheng County, Yongsheng, Yunnan 674208, China;3.Yongsheng Agricultural Technology Extension Center, Yongsheng, Yunnan 674200, China |
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| Abstract: | In order to explore the relationship between dry matter accumulation, lodging resistance and yield of machine-transplanted indica rice varieties, the dry matter accumulation, lodging index, yield and other agronomic characteristics of 19 machine-transplanted indica rice varieties planted in a large area in Yunnan Province were investigated and analyzed. The results showed that the average yield of 19 machine-transplanted indica rice was 11 457.46 kg/hm2; the dry matter accumulation from tillering to jointing, jointing to heading, and heading to maturity accounted for 23.14%, 30.22%, and 83.71% of the yield, respectively; the export percentage and translocation percentage of stem-sheaths were 29.68% and 22.38%, respectively. Lodging risk from high to small is N5 internode>N4 internode>N3 internode. There was no significant correlation between lodging index of N3 internode, N4 internode and N5 internode. The correlation coefficient between dry matter accumulation after heading and yield was the highest, at 0.92, reaching a very significant level. The results could provide a theoretical basis for the selection of high-yield varieties of machine-transplanted indica rice. |
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| Keywords: | machine-transplanted rice dry matter accumulation lodging resistance yield |
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