| 张文英,柳斌辉,彭海城,李爱国,栗雨勤.冬小麦抗旱性状遗传力分析[J].干旱地区农业研究,2009,27(3):44~47 |
| 冬小麦抗旱性状遗传力分析 |
| Analysis of the hereditability of drought resistance characteristics of winter wheat |
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| DOI：10.7606/j.issn.1000-7601.2009.03.09 |
| 中文关键词: 冬小麦 干旱胁迫 抗旱指数 农艺性状 生理生化指标 |
| 英文关键词:wheat (Triticum aestivum L.) drought stress drought resistance index(DRI) agronomic characters physiological and biochemical indices |
| 基金项目:国家科技部支撑计划项目(2007BAD69B01)； 河北省科技厅财政转化项目(06220114D-8) |
| 作者 | 单位 | | 张文英 | Dryland Farming Institute Hebei Academy of Agriculture ＆ Forestry Sciences,Hengshui, Hebei 053000, China | | 柳斌辉 | Dryland Farming Institute Hebei Academy of Agriculture ＆ Forestry Sciences,Hengshui, Hebei 053000, China | | 彭海城 | Dryland Farming Institute Hebei Academy of Agriculture ＆ Forestry Sciences,Hengshui, Hebei 053000, China | | 李爱国 | Dryland Farming Institute Hebei Academy of Agriculture ＆ Forestry Sciences,Hengshui, Hebei 053000, China | | 栗雨勤 | Dryland Farming Institute Hebei Academy of Agriculture ＆ Forestry Sciences,Hengshui, Hebei 053000, China |
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| 中文摘要: |
| ：依据Griffing方法I,配制不同类型的复合双列杂交组合,在水地(浇越冬水、返青拔节水、孕穗水和灌浆水)和旱地(雨养)条件下,在不同生育时期测定冬小麦株高、单株穗数、单株粒重、穗粒数、黄叶数、SOD、POD、MDA等农艺、生理生化性状,研究不同组合类型对其杂交后代的抗旱性遗传力及其与抗旱性的关系。结果表明,单株粒重、穗下节长、黄叶数、籽粒饱满度、落黄特性、成穗数、株高等7个性状与抗旱性关系密切且遗传力较强,可作为高产种质杂种后代的早期抗旱性鉴定指标。SOD活性和MDA含量由于广义遗传力和狭义遗传力均较高,可以在杂种后代早期世代进行选择,OA能力和POD活性广义遗传力较高但狭义遗传力低,适宜在杂种后代的晚期世代进行选择。 |
| 英文摘要: |
| Based on the Griffing method I,various types of complete diallel-crossing was made under both irrigation and rain-fed condition.The hereditability of various types of the cross to their next generation and their relationship with drought resistance were analyzed by measuring the agronomic or physiological and biochemical traits as plant height,spikes and kennel weight per plant,kennel number,yellow leaves,SOD,POD,MDA,etc.The result showed that the following 7 traits as the kennel weight per plant,the panicle length,yellow-leaf number,the fullness of kennel,the yellow-maturing characteristic,spikes per plant and plant height appeared comparatively closer relationship with drought resistance and higher hereditability.These traits may be used as the indices for identifying their drought resistance in the early generation of the hybrids of high-yielding germplasms.SOD activity and the MDA content may be used in early generation hybrid selection because their general and special heritability were both higher,while OA and POD activity were higher in general heritability but lower in special heritability,thus suit for later generation hybrid selection. |
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