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Multivariate analysis of image descriptors of common wheat (Triticum aestivum)and spelt (T. spelta) grain infected by Fusarium culmorum
Fusarium head blight grain image analysis
2008/11/13
The response of five spring common wheat and
five spring spelt cultivars to the infection of their spikes with
Fusarium culmorum was examined using the shape and colour
analysis of kernel images. T...
摘要共用520个10碱基随机引物对小麦抗条锈基因Yr5的近等基因系进行了RAPD分析,发现了3个特异性DNA片段S1496761、S1453880、S14181950与Yr5基因连锁,其中S1496761与Yr5基因紧密连锁,遗传距离为2.7cM.经对特异性DNA片段S1496761进行克隆、测序,设计了PCR扩增用专化引物SC-S1496761a和SC-S1496761b,用该引物可扩增出与原R...
利用非1B/1R与1B/1R类型小麦雄性不育系及保持系, 对2类K型不育系及其保持系花粉发育过程中丙二醛含量、花粉细胞膜透性、SOD活性、花粉发育形态等几个方面进行比较研究。结果表明,2类型小麦不育系花粉丙二醛含量和花粉提取液电导率从减裂期到散粉成熟期变化趋势基本一致,都呈上升趋势,而保持系在花粉发育全过程中2项指标都基本保持平稳。2类型不育系SOD活性从单核期到三核期都一直呈下降趋势。与保持系相...