Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (6): 66-71.doi: 10.11924/j.issn.1000-6850.2013-1154

Special Issue: 生物技术 小麦

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Research of the Physiological Characteristics During Grain Filling Stage and Biology Characteristics of New Wheat Variety‘Yannong 5158’

  

  • Received:2013-04-22 Revised:2013-06-25 Online:2014-02-25 Published:2014-02-25

Abstract: To analysis Photosynthetic Physiological basis of new wheat variety ‘Yannong 5158’, the physiological characteristics during grain filling stage and biology characteristics of it were studied by using one of its parents ‘Lumai 14’ as control. The results showed that ‘Yannong 5158’ had better plant type structure and higher yield potential than ‘Lumai 14’. The photosynthetic physiological indexes during filling stage, such as filling process and rate in grain, net photosynthetic rate in flag leaf, chlorophyll content, transpiration rate in flag leaf after blooming, day changes of primary photochemical efficiency in flag leaf, the largest and actual photochemical efficiency in flag leaf, actual photochemical efficiency of PSⅡ, non-photochemical energy dissipation were better than the control. This was one of the physiological reasons with high yield characteristics of ‘Yannong 5158’.