粉香型多子芋新品种桂子芋1 号的选育

桂子芋1 号是以贺州红芽芋为材料，通过茎尖组织培养产生变异，从中筛选出符合育种目标的优良变异单株HY-3，经离体快繁、种植观察、筛选培育而成的粉香型多子芋新品种。全生育期180～200 d（天），中晚熟，株高110～140 cm，叶片绿色、心形，叶长52～58 cm，叶宽46～52 cm；母芋圆球形，子孙芋卵圆形，单株子孙芋数量14～24 个，单株子孙芋产量600～700 g；淀粉含量198 g · kg^-1，蛋白质29.2 g · kg^-1，口感细腻柔和，粉糯可口，香味浓郁，菜粮兼宜。对疫病和软腐病的田间抗性强于对照贺州红芽芋，每667 m² 水田产量1 600～1 800 kg，旱地产量1 400～1 600 kg，适合广西及周边地区推广种植。

A New Variety of Powdery and Fragrant Taro -‘ Guiziyu No.1’

‘Guiziyu No.1’ is a new multi-cormel of taro variety（Colocasia esculenta Schott），developedthrough in vitro rapid propagation，planting observation and cultivation from a fine bud mutation individualplantlet‘ HY-3’ screened from field plantlets of‘ Hezhouhongyayu’ from Guangxi Zhuang autonomousregion．The entire growth duration of this variety is 180-200 days．It is of middle-late maturity．Its plantheight is 110-140 cm．Its leaf is green in color and of heart shape．The leaf is 52-58 cm in length and 46-52 cmin width．The mother taro is of round shape．Each plant has 14-24 elliptical cormels which weigh 600-700 g．The starch content is 198 g · kg^-1，protein content is 29.2 g · kg^-1．It tastes delicate with aromatic flavor，In thefields，its resistance to epidemic disease and soft rot is stronger than that of the contrast‘ Hezhouhongyayu’．Itcan yield 24-27 t · hm^-2 in paddy fields and 21-24 t · hm^-2 in dry land．It is suitable for extension and cultivationin Guangxi Zhuang Nationality Autonomous Region and surrounding areas．