香蕉抗(耐)枯萎病新品种‘桂抗2号’在海南试种初报  

Preliminary Report on Trial Planting of New Banana Variety‘Guikang2’with Resistance(Tolerance)to Fusarium Wilt in Hainan

作　　者：王安邦[1] 王甲水[1] 许奕[1] 李羽佳[1] 王笑一 林妃[1] 魏卿[1] 唐粉玲[1] 李敬阳[1] Wang Anbang;Wang Jiashui;Xu Yi;Li Yujia;Wang Xiaoyi;Lin Fei;Wei Qing;Tang Fenling;Li Jingyang(Technology Research Center of Health Banana Seedling Propagation of Hainan Province,Haikou Experimental Station,Chinese Academy of Tropical Agricultural Science,Haikou,571101)

机构地区：[1]中国热带农业科学院海口实验站,海南省香蕉健康种苗繁育工程技术研究中心,海口571101

出　　处：《分子植物育种》2021年第9期3128-3132,共5页Molecular Plant Breeding

基　　金：海南省重点研发计划项目(ZDYF2019060)资助。

摘　　要：种植香蕉抗(耐)枯萎病品种是阻止香蕉枯萎病蔓延的重要手段之一,但由于抗病品种生长特性、种植技术与传统品种不同,影响到新品种的推广。本研究开展了香蕉抗病新品种‘桂抗2号’在海南试种试验,调查其农艺性状、产量和抗病性,为新品种在海南的推广打下基础。结果表明,‘桂抗2号’在琼北种植的生育期为398 d,比对照品种长44 d,而且株高、叶片数、茎围等性状生长速度也慢于对照,但果梳数、果指数、第三梳单果重、果指长度、果指粗度等主要果实性状接近或优于对照品种,实际亩产显著高于对照,抗病性显著优于对照。因此,‘桂抗2号’可以作为适合海南种植的香蕉抗病品种,进一步大面积推广示范。Growing banana varieties with resistant(tolerant)to Fusarium wilt is one of the important means to prevent the spread of Fusarium wilt.Due to the differences of the growth characteristics and planting techniques of resistant varieties from traditional varieties,the promotion of new varieties is affected.In this study,‘Guikang2’,a new variety with banana fusarium wilt resistance,was tested in Hainan to investigate the agronomic,yield and disease resistance traits,which was helpful for the promotion of a new variety in Hainan.The results showed that the days of an annual cycle about’Guikang2’grown in Northern Hainan Island was 398 d,which was 44 d more than the control variety.Moreover,the growth rate of plant height,number of leaves and stem circumference was also significantly slower than that of the control.However,the main fruit characteristics such as number of hands,number of fingers,fruit weigh of 3 rdhand,fingers length,circumference were close to or better than the control varieties.The actual yield of ‘Guikang2’was significantly higher than that of the control,and its banana fusarium wilt(Foc4)resistance was significantly better than that of the control.So, ‘Guikang2’ was a new variety with resistant(tolerant)to Fusarium wilt and would be further to be promoted and grown in Hainan.

关 键 词：香蕉 桂抗2号 枯萎病 农艺性状 

分 类 号：S436.68[农业科学—农业昆虫与害虫防治]