抗青枯病桑树新品种粤桑110的选育  

Breeding of a New Mulberry Variety Yuesang 110 with Resistance to Bacterial Wilt

作　　者：戴凡炜[1,2] 王振江 罗国庆[1] 唐翠明 Dai Fanwei;Wang Zhenjiang;Luo Guoqing;Tang Cuiming(Sericulture&Agri-Food Research Institute,Guangdong Academy of Agricultural Sciences,Guangzhou 510610,China;Key Laboratory of Urban Agriculture in South China,Ministry of Agriculture and Rural Affairs,Guangzhou 510610,China)

机构地区：[1]广东省农业科学院蚕业与农产品加工研究所,广州510610 [2]农业农村部华南都市农业重点实验室,广州510610

出　　处：《蚕业科学》2023年第2期188-191,共4页ACTA SERICOLOGICA SINICA

基　　金：广东省自然科学基金项目(2019A1515011433,2021A15-15012444);广东省现代农业产业技术体系创新团队建设项目(2023KJ124);财政部和农业农村部国家现代农业产业技术体系项目。

摘　　要：青枯病是华南地区主要的桑树病害之一,选育优质高产的抗青枯病杂交桑品种具有重要意义。利用抗青枯病桑种质资源作为亲本,采用杂交组合、人工添菌、病地筛选等方法,育成了优质高产抗病杂交新品种粤桑110。以283×抗10为抗病对照品种,在青枯病疫区开展多点比较试验,结果表明粤桑110对青枯病具有高抗性,相对抗性率比对照品种提高16.7个百分点;桑叶产量增加26.4%;通过养蚕鉴定的桑叶品质也有所提高。该品种高抗青枯病、产量高、叶质优,生长势旺盛、群体整齐,遗传性状表现稳定,适宜在长江流域以南的青枯病疫区种植。Bacterial wilt is one of the main mulberry diseases in South China.It is of great significance to breed high yield and high quality hybrid mulberry varieties with resistance to bacterial wit.In this study,a new hybrid variety Yuesang 110 with good quality,high yield and disease resistance was bred by the methods of cross combination with mulberry germplasm resources resistant to bacterical wilt,artificial addition of bacteria,and screening in disease field.A multisite comparison test was carried out in the disease field of bacterial wilt with 283×Kang 10 as a resistant control variety.The results showed that the variety Yuesang 110 was highly resistant to bacterial wilt,and the resistance rate was 16.7 percentage points higher than that of the resistant control variety.Leaf yield was increased by 26.4%.The quality of mulberry leaves identified by silkworm rearing was also improved.This variety has high resistance to bacterial wilt,high yield,excellent leaf quality,vigorous growth,neat population,stable genetic characteristics,and is suitable for planting in the bacterial wilt epidemic area in the south of the Yangtze River basin.

关 键 词：抗青枯病 杂交桑 粤桑110 

分 类 号：S888.3[农业科学—特种经济动物饲养]