Diversity of agronomic and morphological traits in a mutant population of bread wheat studied in the Healthgrain program
Diversity of agronomic and morphological traits in a mutant population of bread wheat studied in the Healthgrain program
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DOI：
10.1007/s10681-010-0149-4
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发表时间：
2010-08-01
期刊：
影响因子：
1.9
通讯作者：
Bedo, Z.
中科院分区：
文献类型：
--
作者：
Rakszegi, M.;Kisgyoergy, B. N.;Bedo, Z.
春小麦变异群体。华彩是在2004-5年在洛桑研究所生产的，既用于TILLING，也用于在Healthgrain计划中研究的植物化学成分的含量中产生变化。通过3年的田间试验，研究了该突变体小麦群体（M（3）-M（6）代）的农艺性状和形态性状。大多数的性状进行了评分，根据UNOSTTG/3/11，即穗出现的时间，株高，穗白度，形状，密度和长度，芒和scurs的存在下，季节类型，和粒色。其它性状如可见突变体表型、穗部不育性、穗行异质性、叶色以及对白粉病和叶锈病的反应也进行了研究。某些面包制作质量参数的变化也进行了研究。研究的EMS突变体华彩花株系在形态和农艺性状方面表现出广泛的多样性。2007年和2008年的农艺性状变异低于2006年，部分原因是M（4）代的SSD（单粒下降），部分原因是晚抽穗基因型的丢失。2007年的多样性最低，可能是由于极端干燥的天气。
A mutant population of spring wheat cv. Cadenza was produced at Rothamsted Research in 2004-5, both for TILLING and to generate variation in the contents of phytochemical components studied in the Healthgrain program. The agronomic and morphological properties of this mutant hexaploid wheat population (generations M(3)-M(6)) were studied in a 3-year field experiment. Most of the traits were scored according to UPOV TG/3/11, namely the time of ear emergence, plant height, ear glaucosity, shape, density and length, presence of awns and scurs, seasonal type, and grain colour. Other characters such as visible mutant phenotypes, ear sterility, heterogeneity of head rows, leaf colour and responses to powdery mildew and leaf rust were also studied. Variation in certain breadmaking quality parameters was also studied. The EMS mutant Cadenza lines studied showed wide diversity in terms of morphological and agronomic properties. The variation in agronomic properties was lower in 2007 and 2008 than in 2006, partly because of the SSD (single seed descent) in the M(4) generation and partly because of the loss of late heading genotypes. The diversity was lowest in 2007, probably due to the extremely dry weather.