Effect of Photoperiod Insensitive Gene on Agronomic Characteristics of Winter Wheat

doi:10.3321/j.issn:1000-7091.2001.04.013

Abstract

Abstract: The effect of photoperiod insensitive gene Ppd1 on characteristics of winter wheat were studied in Shijiazhuang winter wheat environments,by using 6 sets of near isogenic lines respectively in 6 genetic background of AVALON,BRIGAND,BRIMSTONE,MERCIA,NORMAN and RENDZVOUS.The result showed that the gene could make winter wheat to be earlier date of heading,flowering and maturing and could shorten growing period.Both spikes and flag leaf were shortened by the gene Ppd1.The flag leaves of the lines with Ppd1 gene become narrow and their leaf areas become smaller comparing with the background varieties.In addition,Ppd1 gene could increase spike rate of tillers,grain number per spike and tiller,and 1000 grain weight.

Key words: Winter wheat, Ppd1 gene, Near-isogenic lines, Agronomic characteristics

CLC Number:

S512.110.1

LIU Yuping, LI Jianping, LAN Suque, ZHAO Fengwu, LI Xingpu, A J Worland. Effect of Photoperiod Insensitive Gene on Agronomic Characteristics of Winter Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2001, 16(4): 59-64. doi: 10.3321/j.issn:1000-7091.2001.04.013.

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