施钙对超级杂交稻抗倒性的影响

生态学杂志

施钙对超级杂交稻抗倒性的影响

邓文^1,3;青先国⁴;蒲熙²;王思哲²;龚浩如⁵

¹湖南农业大学生物科学技术学院, 长沙 410128;²湖南农业大学农学院; 长沙 410128;³湖南省农业科学院，长沙 410125;⁴国家杂交水稻工程技术研究中心，长沙 410125;⁵湖南省水稻研究所，长沙 410125

收稿日期:2008-07-21 修回日期:1900-01-01 出版日期:2009-04-10 发布日期:2009-04-10

Effects of calcium application on super hybrid rice lodging resistance.

DENG Wen^1,3;QING Xian-guo⁴;PU Xi²;WANG Si-zhe²;GONG Hao-ru⁵

¹College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China;²College of Agronomy, Hunan Agricultural University, Changsha 410128, China;³Hunan Academy of Agricultural Sciences, Changsha 410125, China;⁴China National Hybrid Rice Research and Development Center, Changsha 410125, China;⁵Hunan Rice Research Institute, Changsha 410125, China

Received:2008-07-21 Revised:1900-01-01 Online:2009-04-10 Published:2009-04-10

摘要/Abstract

摘要： 在3种不同施钙水平下，研究了超级杂交稻品种“准两优527”、“两优293”生育后期的抗倒伏能力、抗倒形态及生理性状指标变化情况。结果表明：施钙（特别是中、高量）对提高“准两优527”生育后期的抗倒伏能力作用明显，但不利于降低“两优293”成熟期的倒伏指数;超级杂交稻的抗倒伏能力品种间差异明显;“准两优527”、“两优293”生育后期的倒伏指数明显上升，但倒伏敏感期不同;单株抗折力、表观倒伏率、株高、单株生物量、茎鞘干质量、茎鞘物质输出率与倒伏指数呈显著或极显著的相关关系。

关键词: 苯丙烯酸, 化感作用, 光合速率, 蒸腾速率, 黄瓜根系活力

Abstract: The lodging resistance and related morphological and physiological traits of two super hybrid rice varieties Zhunliangyou 527 and Liangyou 293 at their late growth stage were investigated under three calcium application levels. The results showed that medium and high calcium application levels markedly improved the lodging-resistance of Zhunliangyou 527 at its late growth stage, but not benefited the decrease of the lodging index of Liangyou 293 at its ripening. There was a significant difference in the lodging resistance between the two varieties. The lodging index of test varieties increased obviously at their late growth stage, but their sensitive lodging stage differed. The lodging index had significant correlations with lodging resistance per plant, apparent lodging rate, plant height, aboveground biomass per plant, and dry mass and its transferring rate of stem and sheath.

Key words: Cinnamic acids, Allelopathy, Photosynthetic rate, Cucumis sativus, Transpiration rate, Root activity

邓文;青先国;蒲熙;王思哲;龚浩如. 施钙对超级杂交稻抗倒性的影响[J]. 生态学杂志.

DENG Wen^1,3;QING Xian-guo⁴;PU Xi²;WANG Si-zhe²;GONG Hao-ru⁵. Effects of calcium application on super hybrid rice lodging resistance.[J]. cje.

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