白花桔梗雄性不育种质BY-B1的发现与鉴定  

Discovery and Identification of Male Sterile Germplasm BY-B1 of White Flower Platycodon grandiflorum

作　　者：李俊杰 赵洋 姜雯 杨嘉帅 全雪丽[1] 严一字[1] 吴松权[1] LI Jun-jie;ZHAO Yang;JIANGWen;YANG Jia-shuai;QUAN Xue-li;YAN Yi-zi;WU Song-quan(Agricultural College,Yanbian University,Yanji 133000,China)

机构地区：[1]延边大学农学院,吉林延吉133000

出　　处：《黑龙江农业科学》2022年第11期87-91,共5页Heilongjiang Agricultural Sciences

基　　金：吉林省自然科学基金项目(YDZJ202101ZYTS197);吉林省科研重点项目(20160204003YY)。

摘　　要：为了开辟桔梗种质资源杂交优势利用的新途径,对在延边大学农学院桔梗试验圃地中所发现的白花桔梗不育种质个体BY-B1进行了花器及散粉情况观察、花粉生活力的测定、小孢子和雄配子体发育情况的观察以及自交、杂交试验。结果表明,白花桔梗雄性不育种质个体BY-B1的花与正常白花桔梗植株个体的花外观差异不大,但其花药皱缩干瘪且没有光泽;无花粉散出,挤出的花粉缺乏活力;雄配子体形状不规则,无精核和营养核;自交坐果率为0,与正常白花、紫花桔梗杂交坐果率为100%,表明BY-B1为雄性不育,可以利用白花桔梗雄性不育种质进行杂交培育新品种。In order to promote rapid cutting seeding of Tetrastigma hemsleyanum.The split plot experiment method was used to study the number of stem nodes and shading rate of cuttings for Tetrastigma hemsleyanum.The survival rate,length of new shoots,number of leaflets and number of roots for Tetrastigma hemsleyanum under different treatments were compared and analyzed.The results showed that the correlation coefficients between length of new shoots,number of leaflets and survival rate were 0.8240 and 0.7745,respectively.Two stem nodes(A2)and 60%shading(B2),the survival rate(91.33%),new shoots length(16.11 cm)and number of leaflets(4.3)were higher than other combinations.It is believed that the cuttings should have two stem nodes and 60%shading treatment in the process of trial have the best results.

关 键 词：白花桔梗 雄性不育 种质个体 

分 类 号：S567.239[农业科学—中草药栽培]