1.江西省农业科学院水稻研究所/江西省农作物种质资源研究中心,南昌 330200;2.江西省农业科学院,南昌 330200;3.江西省农业技术推广中心,南昌 330046
研究方向为水稻优异种质资源鉴定与创新利用,E-mail: huiying510@163.com;刘进为共同第一作者
黎毛毛,研究方向为水稻遗传育种和种质资源创制,E-mail: lmm3056@163.com
江西现代农业科研协同创新专项(JXXTCXQN202205);江西省自然科学基金(20232BAB205036);国家农作物种质资源平台项目(NICGR2023-050)
1.Rice Research Institute, Jiangxi Academy of Agricultural Sciences/Jiangxi Provincial Crop Germplasm Resources Research Center, Nanchang 330200;2.Jiangxi Academy of Agricultural Sciences, Nanchang 330200;3.Jiangxi Agricultural Technology Extension Center, Nanchang 330046
Foundation projects: The Collaborative Innovation Special Project of Jiangxi Modern Agricultural Research(JXXTCXQN202205); The Natural Science Foundation of Jiangxi Province(20232BAB205036); National Crop Germplasm Resources Platform Project(NICGR2023-050)
依托“第三次全国农作物种质资源普查与收集行动”及后期补充收集,江西省共收集糯稻地方种质资源216份,分析其分布特点和种质类型,鉴定形态特征、产量相关农艺性状和品质特性,综合评价筛选地方糯稻优异种质。从地理分布来看,江西省糯稻地方种质资源主要集中分布于上饶、赣州、抚州、吉安和宜春等5个经济欠发达的山地区域。江西省糯稻地方种质资源遗传变异丰富,存在籼稻与粳稻两个亚种,以籼稻为主;包括早稻、中稻和晚稻,以中、晚稻为主;种皮颜色种类丰富,有8份有色糯稻资源;多数表现为颖尖秆黄、无芒或短芒、穗型适宜、剑叶及茎秆角度适中、抗倒伏且落粒性较适宜,具有较大的挖掘潜力。对江西省地方稻种资源的农艺性状和品质性状进行2年重复鉴定,筛选出优异地方糯稻种质10份,表现为大穗多粒、高结实率和高千粒重,其中单株有效穗数变幅为8.2~10.3个、每穗总粒数变幅为183.4~236.6粒、千粒重变幅为23.2~27.2 g、结实率变幅为84.3%~94.0%。本研究筛选出的优异种质资源蕴藏重要育种价值,可作为糯稻高产、优质遗传改良的亲本材料。
Based on The Third National Survey and Collection of Crop Germplasm Resources, along with subsequent supplementary collections, a total of 216 glutinous rice landrace germplasm resources were obtained from Jiangxi province. The distribution patterns and germplasm types of these resources were analyzed,and their morphological characteristics, agronomic traits, and quality characteristics were evaluated. A comprehensive assessment and selection of superior local glutinous rice germplasms were carried out. From the perspective of geographical distribution, the glutinous rice landrace germplasm resources in Jiangxi province are mainly concentrated in five less developed regions: Shangrao, Ganzhou, Fuzhou, Ji'an and Yichun. These landraces exhibited high genetic diversity and harbored two subspecies: indica and japonica, with indica being the predominant type. Additionally, these resources can be categorized into early, medium, and late varieties according to their maturity, with medium and late rice varieties predominating. Moreover, the seed coat color varies widely, and eight colored glutinous rice resources were identified. Most of the spikelets are yellow, with either no or short awns, suitable panicle, moderate blade and stem angles, resistance to lodging, and suitable seed holding. These characteristics indicate great potential for further utilization. Through two years repeated evaluation of the agronomic and quality traits of local rice resources in Jiangxi province, ten glutinous rice germplasm resources were selected, which showed large panicles, multiple grains, high seed setting rate and high 1000-grain weight. Among them, the effective number of panicles per plant ranged from 8.2 to 10.3, the number of grains per panicle ranged from 183.4 to 236.6, the 1000-grain weight ranged from 23.2 to 27.2 g and the seed setting rate ranged from 84.3% to 94.0%. These germplasm resources have the characteristics of high yield and good quality, which have considerable values for breeding application. These elite germplasm resources selected in this study have great potential for further utilization, which could provide a material basis for the genetic improvement of high yield and quality in glutinous rice.
周慧颖,刘进,易龙,等.江西省糯稻地方种质资源鉴定及优异种质筛选[J].植物遗传资源学报,2026,27(1):50-61.
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