空间诱变创制不结球白菜晚抽薹新种质及新品种艳春的选育  

Development of A New Late-bolting Germplasm and Breeding A New Cultivar Yanchun of Pak-choi by Using Space Mutation

作　　者：李晓锋[1] 朱红芳[1] 朱玉英[1] 侯瑞贤[1] LI Xiaofeng;ZHU Hongfang;ZHU Yuying;HOU Ruixian(Shanghai Key Lab of Protected Horticultural Technology / Horticultural Research Institute of Shanghai Academy of Agricultural Science, Shanghai 201106)

机构地区：[1]上海市农业科学院园艺研究所/上海市设施园艺技术重点实验室,上海201106

出　　处：《核农学报》2018年第7期1249-1255,共7页Journal of Nuclear Agricultural Sciences

基　　金：上海市种业发展项目青菜分子育种关键技术和育种创新体系[沪农科种字(2016)第1-9号];上海市种业发展项目蔬果新品种种质创新与良种生产技术集成示范[沪农科种字(2017)第3-1-2号];上海市绿叶蔬菜产业技术体系[沪农科产字(2017)第2号];国家高新技术发展计划(863计划)项目(2013AA103006)

摘　　要：为创制不结球白菜新种质,并利用其选育新品种,通过空间诱变育种技术创制了不结球白菜晚抽薹新种质SP67,并与传统育种方法相结合,选育了不结球白菜晚抽薹杂交新品种艳春。形态观察表明,艳春植株直立,中矮箕类型,生长势强;叶深绿色,叶面光滑;叶柄淡绿色、较宽;耐寒性强,抗病抗逆性好,抽薹晚,品质优良;播种后35 d采收平均产量为2 750 kg·666.7 m^(-2),全国各地均可种植。艳春通过空间诱变结合传统育种技术选育而成,该品种的选育说明空间诱变对不结球白菜具有明显的诱变效应,对后代农艺性状的改良具有促进作用,对解决春季不结球白菜的供应具有重要意义。In order to develope a new pak-chi germplasm, and use it to breeding new cultivars. In this study, a new late bolting pak？chi germplasn SP67 was developed by space mutation, and a new cultivar Yanchun was breeded by using space mutation combined with traditional breeding methods. Morphological observations showed that Yanchun is erect, compact plant type, vigorous growth, glossy green outer leaves, wide-long green petiole, cold resistance and high disease resistance, late bolting and high quality. The average yield of Yanchun is 2 750 kg·666.7m^-2 at 35 days after seeding, and it′s suitable for cultivation all over the country. Breeding of Yanchun showed that the mutagenic effect of pak？choi is very apparent through space mutation and can promote the improvement of agronomic characters and it′s great significants to supply of pak-chi in spring.

关 键 词：不结球白菜 空间诱变 晚抽薹 艳春 

分 类 号：S634.3[农业科学—蔬菜学]