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首页> 外文期刊>Australian Journal of Crop Science >Genetic behaviour for plant capacity to produce chlorophyll in wheat (Triticum aestivum) under drought stress
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Genetic behaviour for plant capacity to produce chlorophyll in wheat (Triticum aestivum) under drought stress

机译：干旱胁迫下小麦（Triticum aestivum）植物生产叶绿素能力的遗传行为

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The study was conducted with the objective of identifying parents to be used in a breeding program to develop high chlorophyll varieties. Combining ability, heterosis and inheritance of chlorophyll content, including chlorophyll a, chlorophyll b and total chlorophyll (a+b), were investigated in bread wheat obtained from half-diallel crossings among eight parental lines. Cultivars with names of Irena/Babax//Pastor, S-78-11, Tajan, Chamran, Moghan3, Hamoon, Veery/Nacozari and Hirmand have different capacities to produce chlorophyll. Eight parental genotypes and their resulting 28 F1s were grown in three replications of randomised complete block design. Drought stress was performed with irrigation at 75% soil moisture depletion, the data collected were subjected to analysis of variance and combining abilities were carried out according to Griffing’s method 2, model 1. The study was conducted with the objective of identifying parents to be used in a breeding program to develop high chlorophyll varieties. General combining ability and specific combining ability effects were significant for traits’ chlorophyll content, chlorophyll a, chlorophyll b and total chlorophyll; however, non-additive gene effects were predominant over additive effects. The line Irena/Babax//Pastor transmitted high chlorophyll content based on general combining ability to progenies that were made with it. Broad-sense heritabilities were high and strict-sense heritabilities were low for the traits, confirming the importance of non-additive gene effects. This could bring definition of reduced selection efficiency for these mentioned traits.
机译：进行这项研究的目的是确定要在育种计划中使用的父母，以开发高叶绿素品种。研究了从八个亲本品系的半圆角杂交获得的面包小麦的叶绿素含量（包括叶绿素a，叶绿素b和总叶绿素（a + b））的结合能力，杂种优势和遗传。名称为Irena / Babax // Pastor，S-78-11，Tajan，Chamran，Moghan3，Hamoon，Veery / Nacozari和Hirmand的品种具有不同的生产叶绿素的能力。八种亲本基因型及其产生的28个F1以随机完全区组设计的三个重复形式生长。在土壤水分消耗为75％的情况下，通过灌溉进行干旱胁迫，对收集的数据进行方差分析，并根据Griffing的方法2（模型1）进行组合。研究的目的是确定要使用的父母在育种计划中开发高叶绿素品种。总的结合能力和特异的结合能力效应对性状的叶绿素含量，叶绿素a，叶绿素b和总叶绿素有显着影响。然而，非加性基因效应比加性效应更为主要。 Irena / Babax // Pastor系根据与之结合的后代的一般结合能力传递了较高的叶绿素含量。对于这些性状，广义的遗传力较高，而严格的遗传力较低，这证实了非加性基因效应的重要性。这可以为这些提到的性状带来降低选择效率的定义。

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