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Acta Agron Sin ›› 2008, Vol. 34 ›› Issue (07): 1259-1265.

• TILLAGE & CULTIVATION·PHYSIOLOGY & BIOCHEMISTRY • Previous Articles     Next Articles

Changes and Correlations between Yield and Partial Physiological Char-acters in Leaves of Soybean Cultivars Released from 1923 to 2005 in Jilin Province

ZHAO Hong-Xiang12,XU Ke-Zhang1*,YANG Guang-Yu2,YANG Chun-Ming2,BIAN Shao-Feng2,LU Jing-Mei3   

  1. 1 College of Agronomy, Jilin Agricultural University, Changchun 130018, Jilin; 2 Jilin Academy of Agricultural Sciences, Changchun 130124, Jilin; 3 College of Life Sciences, Northeast Normal University, Changchun 130024, Jilin, China
  • Received:2007-11-13 Revised:1900-01-01 Online:2008-07-12 Published:2008-07-12
  • Contact: XU Ke-Zhang

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Abstract: The yield and partial changes physiological characters in the leaves were measured at different growing stages using 42 soybean cultivars released from 1923 to 2005 in Jilin province, and the relationship between them was analyzed. The results showed that soybean seed yield was increased significantly in the process of cultivar released years, it increased by 95.94% in past 82 years (1.17% per year) according to the calculation of regression equation. At the same time, nitrate reductase activity (NRA), soluble sugar content, specific leaf weight (SLW), chlorophyll content, soluble protein content in leaves at V4, R2, R4, R6 stages increased and positively correlated with soybean yield. Among them, NRA was correlated significantly with soybean yield at three growth stages and could be used as a selection index for high-yielding soybean cultivars.

Key words: Soybean, Leaf, Yield, Nitrate reductase

CLC Number: 

  • 10.3724/SP.J.1006.2008.01259
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