第三次湖南省水稻普查收集种质资源鉴定评价
作者:
作者单位:

1.湖南省水稻研究所/农业农村部长江中下游籼稻遗传育种重点实验室;2.湖南省农业科学院

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基金项目:

第三次湖南省农作物种质资源普查与收集行动;湖南省农业科技创新资金项目“主要农作物种质资源安全保存研究”(2024CX18)


Identification and Evaluation of Rice Germplasm Resources Collected in the Third Rice Census in Hunan Province
Author:
Affiliation:

1.Hunan Rice Research Institute/Key Laboratory of Indica Rice Genetics and Breeding in the MiddleSand LowerSReachesSof Yangtze RiverSValley,Ministry of Agriculture and Rural Affairs,PRChina;2.Hunan Academy of Agriculutureal Sciences

Fund Project:

The third survey and collection action of crop germplasm resources in Hunan province;Hunan Agricultural Science and Technology Innovation Fund Project ''Safety Preservation of Main Crop Germplasm Resources ''(2024CX18)

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    摘要:

    通过对“第三次湖南省农作物种质资源普查与收集行动”项目收集的水稻种质资源进行主要农艺性状和抗病性鉴定评价,结果发现:湖南省三普收集的水稻种质资源分为籼亚种与粳亚稻,以籼亚种为主;粘稻与糯稻占比接近,分别为53.8%和46.2%;种皮颜色种类丰富,有41份红米、黑米、紫米、绿米和褐米种质资源。湖南省三普收集的水稻种质资源遗传变异丰富,多数表现为抗倒伏、茎秆角度适中、剑叶直立、颖尖秆黄色、颖色黄色、无芒且谷粒形状多为中长形;鉴定出14份生育期和株高适宜、结实率高和抗病性较强、穗大粒多和千粒重适宜的优良种质资源,同时,还筛选出优良糯稻种质资源13份、有色功能稻种质资源20份。上述优异水稻种质资源将为基础研究与新品种培育等提供重要的物质基础。

    Abstract:

    The main agronomic traits and disease resistance identification of rice germplasm resources collected in the third general survey and collection action of crop germplasm resources in Hunan Province ( hereinafter referred to as the third general survey of Hunan Province ) were evaluated. The results showed that the rice germplasm resources collected in the third general survey of Hunan Province were divided into indica subspecies and japonica subspecies, mainly indica subspecies. The proportions of sticky rice and waxy rice were close, which were 53.8 % and 46.2 %, respectively. There are 41 germplasm resources of red rice, black rice, purple rice, green rice and brown rice. The rice germplasm resources collected in the third general survey of Hunan Province are rich in genetic variation, most of which are lodging resistance, moderate stem angle, erect flag leaf, yellow glume tip, yellow glume, no awn, and most of the grain shapes are medium-long. Fourteen excellent germplasm resources with suitable growth period and plant height, high seed setting rate and strong disease resistance, large panicle and more grains and suitable 1000-grain weight were identified. At the same time, 13 excellent waxy rice germplasm resources and 20 colored functional rice germplasm resources were screened. The above excellent rice germplasm resources will provide an important material basis for basic research and new variety breeding.

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  • 收稿日期:2024-08-16
  • 最后修改日期:2024-10-12
  • 录用日期:2024-10-16
  • 在线发布日期: 2024-10-17
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