棉花不同土层侧根还原力差异初探

作物学报 ›› 2005, Vol. 31 ›› Issue (02): 219-223.

棉花不同土层侧根还原力差异初探

董志强;舒文华;张保明;金石桥;宁明宇

中国农业科学院作物科学研究所，北京100081

收稿日期:2003-11-20 修回日期:2004-02-27 出版日期:2005-02-12 网络出版日期:2005-02-12
通讯作者: 董志强

A Preliminary Study on the Reductive Activity of Cotton Lateral Root in Different Soil Layer

DONG Zhi-Qiang;SHU Wen-Hua;ZHANG Bao-Ming;JIN Shi-Qiao;NING Ming-Yu

Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081

Received:2003-11-20 Revised:2004-02-27 Published:2005-02-12 Published online:2005-02-12
Contact: DONG Zhi-Qiang

摘要/Abstract

摘要： 于1999年和2001年以新棉33B、中棉所12、杂29和杂29F1代为供试品种，分别于棉花不同生育期测定0～5 cm、5～10 cm、10～15 cm、15～20 cm和20 cm以下土层侧根还原力。研究表明：①苗期根系还原力高，现蕾是根系还原力迅速下降的转折点。②初花期（7月15日）至盛花期（7月23日）棉株5 cm以下土层侧根还原力高于0～5 cm侧根还原

关键词: 侧根, 还原力, 土体层次

Abstract: Taking Newcotton 33B, Zhongmiansuo 12, Za29 and Za29 F1 as test materials, the reductive activities of cotton lateral root in soil layers of 0－5 cm, 5－10 cm, 10－15 cm, 15－20 cm and below 20 cm at different developmental stages were determined in 1999 and 2001. The results showed that the root sy

Key words: Lateral root, Reductive activity, Soil layer

中图分类号:

S562

董志强;舒文华;张保明;金石桥;宁明宇. 棉花不同土层侧根还原力差异初探[J]. 作物学报, 2005, 31(02): 219-223.

DONG Zhi-Qiang;SHU Wen-Hua;ZHANG Bao-Ming;JIN Shi-Qiao;NING Ming-Yu. A Preliminary Study on the Reductive Activity of Cotton Lateral Root in Different Soil Layer[J]. Acta Agron Sin, 2005, 31(02): 219-223.

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