| 抗旱型稻根系形态与机能的研究 |
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| 引用本文： | 郎有忠,胡健,杨建昌,张祖建,朱庆森. 抗旱型稻根系形态与机能的研究[J]. 扬州大学学报(农业与生命科学版), 2003, 24(4): 58-61 |
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| 作者姓名： | 郎有忠 胡健 杨建昌 张祖建 朱庆森 |
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| 作者单位： | 扬州大学,农学院,农学系,江苏,扬州,225009 |
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| 基金项目： | 扬州大学科研基金资助项目(H0111211) |
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| 摘 要： | 以6个抗旱性不同的栽培稻品种为材料,对其根系形态及解剖学进行研究.结果表明抗旱型稻平均根长、根粗、根系穿透力、不定根伸长速率、不定根中柱及导管面积等显著大于非抗旱型品种;而根干重、不定根数量、根冠比及根系的渗透调节能力等指标,抗旱型与非抗旱型品种间差异不显著.对栽培稻抗旱性的形态指标与抗旱机理进行了探讨.
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| 关 键 词： | 栽培稻 抗旱 根系 形态解剖特征 |
| 文章编号： | 1671-4652(2003)04-0058-04 |
| 修稿时间： | 2003-06-13 |
MORPHOLOGICAL AND ANATOMIC TRAITS IN DROUGHT-RESISTANT RICE ROOT |
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| LANG You-zhong,HU Jian,YANG Jian-chang,ZHANG Zu-jian,ZHU Qing-senWept of Agron,Agric Coll,Yangzhou Univ,Yangzhou,,China). MORPHOLOGICAL AND ANATOMIC TRAITS IN DROUGHT-RESISTANT RICE ROOT[J]. Journal of Yangzhou University(Agricultural and Life Science Edition), 2003, 24(4): 58-61 |
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| Authors: | LANG You-zhong HU Jian YANG Jian-chang ZHANG Zu-jian ZHU Qing-senWept of Agron Agric Coll Yangzhou Univ Yangzhou China) |
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| Affiliation: | LANG You-zhong,HU Jian,YANG Jian-chang,ZHANG Zu-jian,ZHU Qing-senWept of Agron,Agric Coll,Yangzhou Univ,Yangzhou,225009,China) |
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| Abstract: | Morphological and anatomic root traits were observed in three drought-resistant rice varieties with three drought susceptible varieties as control. The results were as follows: root length, root width, root penetration ability, elongating rate of root in drought-resistant varieties were significantly higher than those in drought-susceptible varieties. No significant differences was found in root dry weight, ratio of root dry weight to shoot dry weight and osmotic adjustment between drought-resistant and drought-susceptible varieties. Drought-resistance indices and mechanisms in rice were discussed. |
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| Keywords: | rice drought-resistance root morphological & anatomic traits |
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