80份玉米种质耐热性鉴定研究
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摘要
以从国内外收集的80份玉米(Zea mays L.)种质为研究对象,在田间自然高温条件下,重点考察植株空秆率和果穗结实率两个性状,对不同玉米种质的耐热性进行了评价。结果表明,不同种质间耐热性存在差异,筛选出较耐高温材料9份,强耐高温材料1份。
To make a deep insight of maize(Zea mays L.) heat response, the empty corn rate and setting rate for 80 collected from at home and abroad maize inbred lines were measured under the field natural high temperature conditions. The result revealed that there were variations of heat stress tolerance among different inbred lines, finally 1 inbred line with extreme heat tolerance and 9 inbred lines with moderate heat stress tolerance were screened out.
To make a deep insight of maize(Zea mays L.) heat response, the empty corn rate and setting rate for 80 collected from at home and abroad maize inbred lines were measured under the field natural high temperature conditions. The result revealed that there were variations of heat stress tolerance among different inbred lines, finally 1 inbred line with extreme heat tolerance and 9 inbred lines with moderate heat stress tolerance were screened out.
引文
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[2] JONES P D,NEW M, PARKER D E, et al. Surface air temperature and its changes over the past 150 years[J].Rev Gephys,1999,37:173-199.
[3]金之庆,葛道阔,郑喜莲,等.评价全球气候变化对我国玉米生产的可能影响[J].作物学报,1996,22(5):513-524.
[4] TRENBERTH K E. Atmospheric moisture residence times and cycling:Implications for rainfall rates with climate change[J].Clim Change,1998,39:667-694.
[5] MITCHELL J C,PETOLINO J F. Heat stress effect on isolated reproductive organs of maize[J].Plant Physiol,1988,133(5):625-628.
[6] YANG J C,ZHANG J H. Grain filling of cereals under soil drying[J].New Phytol,2006,169(2):223-236.
[7]赵龙飞,李潮海,刘天学,等.花期前后高温对不同基因型玉米光合特性及产量和品质的影响[J].中国农业科学,2012,45(23):4947-4958.
[8]赵龙飞,李潮海,刘天学,等.玉米花期高温响应的基因型差异及其生理机制[J].作物学报,2012,38(5):857-864.
[9]王晓琴,袁继超,熊庆娥.玉米抗旱性研究的现状及展望[J].玉米科学,2002,10(1):57-60.