卡柱苣苔叶片扦插繁殖技术初探  

Preliminary study on propagation of Chirita ‘Kazu' by leaf cutting

作　　者：李谦盛[1] 瞿家莺 沈丹峰 叶小波 邓敏[3] 

机构地区：[1]上海应用技术学院生态学院,上海201418 [2]枫彩集团组培实验室,上海201516 [3]中国科学院上海辰山植物科学研究中心,上海201602

出　　处：《浙江农业学报》2014年第3期675-679,共5页Acta Agriculturae Zhejiangensis

基　　金：上海市市容与绿化管理局科技攻关项目(F122414);上海市大学生科技创新行动计划项目(PE2012070);上海市研究生教育创新计划实施项目"生态学及相关一级学科交叉培养研究生拔尖创新人才的探索"

摘　　要：卡柱苣苔是苦苣苔科唇柱苣苔属园艺杂交新品种,观赏性高,可观花观叶,目前我国尚无产业化栽培。文章对卡柱苣苔进行不同叶片切割方式和不同扦插基质的扦插效果试验。结果表明,全叶扦插或叶片切割为两段式或三段式扦插在不同基质上的扦插成活率均较高,最低86.7%,全叶插成活率高达100%。生根和子株出苗的时间长短受扦插方式以及基质配比影响,不带叶柄的叶片上段扦插生根和子株出土所需时间均短于带叶柄的叶片下段或全叶扦插。叶片的切割方式与基质配比同样影响生成的子株数量,不带叶柄的叶片上段或中段,切口大,生成子株数也多。泥炭和珍珠岩(体积比1∶1)的混合基质,生成的子株数明显多于其他基质。春季两段式扦插,每片叶片平均可形成6.4株扦插苗。Chirita ‘Kazu＇ is a horticulture hybrid cultivar of genus Chirita. It has high ornamental value both on the flower and foliage. This plant has not been commercially cultivated in China. Propagation efficiency of Chirita‘Kazu＇by different leaf cutting types and cutting substrates was investigated. The results showed that the rooting rates of all leaf cutting types were high,from 86. 7% to 100% of the whole leaf cutting. Rooting initiation and adventitious buds emergence were affected by the cutting types and substrate formulas. Both the root initiation and adventitious shoot emergence of the upper segments without petiole were earlier than that of the lower part with petiole. The cutting type and substrate formula also affected the number of adventitious buds. The upper segments of leaf cutting with large cutting edges produced more adventitious buds. In spring,each leaf can produce up to 6. 4 plantlets by the two segments cutting.

关 键 词：苦苣苔 室内植物 基质 繁殖效率 

分 类 号：S682[农业科学—观赏园艺]