| 海南山栏稻农艺特征与抗旱生理特性研究 |
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| 引用本文： | 郑成本,陈辉.海南山栏稻农艺特征与抗旱生理特性研究[J].热带作物学报,1997,18(2):85-91. |
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| 作者姓名： | 郑成本 陈辉 |
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| 作者单位： | 华南热带农业大学农学院 |
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| 摘 要： | 研究了１２个山栏稻原始种质的主要农艺性状、品质特征及抗旱生理特性，并与水稻不同类型的对照进行比较分析。结果表明，在旱地栽培条件下，山栏稻的穗长、穗粒数、衙粒重及单株产量均显高于对照水稻．但不时也表现高杆、穗颈过长、移片大且披垂等不良性状。在品质方面，山栏稻糙米粗蛋白含量、１７种氨基酸含量及２种必需氨基酸含量显高于水稻对照。山栏稻种子在高渗溶液中的发芽率、离体叶片保水率、质膜稳定性和分蘖秆长整齐
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| 关 键 词： | 海南山栏稻 农艺性状 抗旱生理 旱稻 |
Agronomic Traits and Physiological Characters of Drought Resistance in the Shanlan Upland Rice |
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| Zheng Chengmu Chen Hui Huang Dongyi.Agronomic Traits and Physiological Characters of Drought Resistance in the Shanlan Upland Rice[J].Chinese Journal of Tropical Crops,1997,18(2):85-91. |
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| Authors: | Zheng Chengmu Chen Hui Huang Dongyi |
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| Abstract: | Twelve primitive upland rice accessions of germplasm were studied in terms of main agronomic traits, rice quality and drought resistance,and resorted to comparative analysis with various strains of paddy rice. Results showed that the spike length,amount of grain per spike, weight per thousand grain and yield per plant were increased significantly as compared with the paddy rice under the upland cultivation. Shanlan rice,however,showed some adverse characters such as high stem, long neck of spike,drooped leaves and so on. For rice quality the coarse upland rice contained remarkably higher crude protein, 17 amino acids and 2 necessary amino acids as against the paddy rice. For drought resistance Shanlan upland rice was evidently higher than the paddy rice in terms of physiological and morphologica1 parameters including percent germination in 0.52 M PEG solution,water content of the leaf 24 hours after excision,electric conductivity and coefficient of variation in the stem length of tillers,indicating that Shanlan rice was more drought resistant than the paddy rice. |
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| Keywords: | Shanlan upland rice agronomic traits drought resistance |
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