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Acta Agron Sin ›› 2011, Vol. 37 ›› Issue (07): 1308-1312.doi: 10.3724/SP.J.1006.2011.01308

• RESEARCH NOTES • Previous Articles    

Comparison of Effects of Sorghum bmr-6 and bmr-12 Genes on Yield and Quality Traits

WANG Li-Hua,LI Jie-Qin,LIN Ping,WANG Pei,YOU Zhen-Wen,ZHAN Qiu-Wen*   

  1. College of Plant Science and Technology, Anhui Science and Technology University, Fengyang 233100, China
  • Received:2010-12-23 Revised:2011-03-26 Online:2011-07-12 Published:2011-05-11
  • Contact: 詹秋文, E-mail: qwzhan@163.com, Tel: 0550-6719202

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Abstract: This research aimed to compare the impact of bmr-6 and bmr-12 on yield and quality traits in five sorghum genetic backgrounds: Atlas, Early Hegari-Sart, Kansas Collier, Rox Orange and Wheatland. The results showed that bmr-6 and bmr-12 generally made a shorter plant height and bigger stem diameter. However, bmr-6 and bmr-12 had little effects on tiller number and leaf number.Bmr-6 and bmr-12 had negative effects on yield traits, but the effects were different in different genetic backgrounds. As for the quality traits, bmr-6 generally decreased the contents of NDF (Neutral Detergent Fiber) and ADF (Acid Detergent Fiber) and bmr-12 had no impact on the two traits. Both bmr-6 and bmr-12 decreased the contents of ADL (Acid Detergent Lignin) and ADF (Acid Detergent Lignin) in the five genetic backgrounds. Considering all factors, bmr-12 is more useful in breeding than bmr-6.

Key words: Sorghum, bmr-6, bmr-12, Yield traits, Quality traits

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