不同春化天数对浙南地区普通白菜秋季加代繁种的影响  

Effect of Different Numbers of Vernalization Day on Autumn Generation-adding Seed Reproduction of Pakchoi in Southern Zhejiang

作　　者：舒骏 黄文斌 娄建英 冯光 张建隆 李乐斌 张景丽 吴小宝 SHU Jun;HUANG Wenbin;LOU Jianying;FENG Guang;ZHANG Jianlong;LI Lebin;ZHANGJingli;WU Xiaobao(Wenzhou Shenlu Seed Co.,Ltd.,Wenzhou 325014,Zhejiang,China)

机构地区：[1]温州市神鹿种业有限公司,浙江温州325014

出　　处：《中国蔬菜》2021年第1期73-78,共6页China Vegetables

基　　金：温州市种子种苗科技创新专项(2017Z0030)。

摘　　要：以3个不同抽薹类型的普通白菜品种为试材,采用低温处理萌动种子+低温长日照处理幼苗,模拟低温长日照春化过程,研究不同春化天数对普通白菜营养体、抽薹开花和种子质量的影响。结果表明,早抽薹、中等抽薹和晚抽薹类型普通白菜植株开展度最大的处理分别是最小处理的17.1、6.3、6.5倍,单株质量最大的处理分别是最小处理的5.6、2.8、2.9倍;随着春化天数的增加,3种抽薹类型的开花时间均明显提前,最早开花日期比最晚开花分别提早了54、39、36 d。早抽薹类型20-20处理和中等抽薹类型20-25处理的平均单株种子质量和发芽率较优。通过调整抽薹开花期及采籽期,将育种加代环节与正常育种周期完整衔接,创建了浙南地区普通白菜一年二代的育种加代技术。Taking 3 types of pakchoi〔Brassica campestris L.ssp.chinensis(L.)Makino var.communis Tsen et Lee〕with different bolting ability as test material,this experiment adopted different low temperature and illumination to induce vernalization on seedlings,and studied the effects of 9 vernalization combinations on vegetative mass,bolting,blooming and seed quality of pakchoi.The results showed that the maximum differences in plant open width degree among different vernalization combinations in early,medium and late bolting types were 17.1,6.3 and 6.5 times.And the maximum differences in single plant weight were 5.6,2.8 and 2.9 times,respectively.The flowering date of each bolting type were significantly ahead of schedule,along with the increase of vernalization days number.For the early bolting,medium bolting and late bolting types,the maximum differences of flowering date between the different vernalization combinations of early bolting and medium bolting types were 54,39 and 36 days.For the early bolting and medium bolting types,the average single plant seed weight and germination rates were the best,when the vernalization treatments were happened on 20-20,20-25,respectively.By adjusting bolting anthesis and seed collecting stage,breeding generation-adding link and normal breeding cycle were complete articulation,thus realizing the breeding target of 2 generations one year for pakchoi in southern Zhejiang areas.

关 键 词：普通白菜 春化作用 加代 浙南地区 

分 类 号：S634[农业科学—蔬菜学]