东南亚珠芽魔芋多苗接力生长特性及应用前景  

Mechanism of Relay Multi-seedling Release Amorphophallus bulbifer and Its Application in Southeast Asia

作　　者：张东华[1,2] 汪庆平[3] 段志柏[1] 米开先 

机构地区：[1]云南民族大学化学与生物技术学院,云南昆明650031 [2]云南耕耘魔芋资源开发公司,云南昆明650223 [3]云南省农业科学院农产品质检所,云南昆明650223

出　　处：《资源开发与市场》2009年第8期682-684,710,共4页Resource Development & Market

摘　　要：以珠芽魔芋人工诱导开花进行规模化无性育种,可将魔芋繁殖系数从1位数提高约330倍;采用催苗技术让种子及叶面球茎提早出苗,可显著延长魔芋生长周期,使魔芋种植周期由3年缩短为1年;魔芋种子1年生长最高膨大率超过5000倍,当年即形成1180g球茎;魔芋叶面球茎最大膨大率超过100倍,两者种植一季魔芋即可用于加工。突破了魔芋繁殖系数低、膨大率低导致种植周期长的双重困局,显著降低了病害风险,大幅度缩短了魔芋种植周期,从而突破魔芋传统种植区域的地理限制,使魔芋总产量超常规增长。It had from single - digit times to about 330 times by inducting flower breeding and seed without pollination. The procedure developed for relayed multi - seedling release of A. bulbifer was a desirable solution for lifting of the above barriers and shortening the growth cycle from 3 years to 1 year in the greenhouse. The weight increase of corms originating from a seed during a single growth cycle could be as high as 5000 times or more and it could result in a final weight of up to 1180 grammes.The highest corm partition rate of bulbs was 100 times and the total weight of corms derived from a single bulb after one cropping season.They could possibly still be used for processing. Moreover, they could produce commercial size crop within one year of field production. The entrenched idea of long lead time for production of cultivated konjac could be completely overturned,resulting in a significant increase in overall production of this crop. The planting methods could be overhauled and the geographical limits of konjac cultivation expanded beyond traditional boundaries.

关 键 词：珠芽魔芋 叶面球茎 诱导开花 育种 种子 多苗接力 

分 类 号：S632.303[农业科学—蔬菜学]