5种魔芋部分生物学特性比较研究

目的]比较分析不同品种魔芋(Amorphophallus konjac)的部分生物学特性,为魔芋资源的综合利用以及亚热带低海拔地区魔芋大规模种植提供科学依据和理论基础。方法]通过田间对比试验,对5种魔芋湘芋一号(湖南)、白魔芋(云南)、花魔芋(湖北)、野生种L-01、野生种M-01]在亚热带低海拔地区的生育期、植株性状、块茎形状、抗性以及产量等进行比较。结果]这5种魔芋在株高、叶柄、叶片、生育期、产量、生长系数、抗逆性以及块茎品质上均存在较大差异。其中新品种湘芋一号的抗病性、抗逆性最强,产量最高;L-01次之;花魔芋在低海拔地区高温季节患软腐病严重;白魔芋生长缓慢,但其生长系数最大;M-01出芽率低,抗逆性差。结论]湘芋一号魔芋值得在亚热带低海拔地区进行推广种植。

Comparative Study on Part of Biological Characteristics of Five Varieties of Konjak(Amorphophallus konjac)

Objective] The purpose was to compare and analyze part of biological characteristics of different varieties of konjak,provide a scientific and theoretic basis for comprehensive utilization of konjak resources and their planting in a large scale in subtropical low altitude area.Method] By field experiment,growth period,plant traits,tuber traits,resistance and yield and etc of 5 varieties of konjak,Xiangyu1hao(first discovering in Hunan),traditional varieties white konjak(first discovering in Yunnan),colored konjak(first discovering in Hubei),and wild varieties L-01 and M-01,were compared in subtropical low altitude area.Result] The results show that there are big differences in plant height,leaf,petiole,growth period,yield,resistance,coefficient of growth,as well as the tuber quality among 5 varieties of konjak.Thereinto,Xiangyu1hao has the strongest resistance to disease and adverse situation and its yield is the highest;L-01 takes second place;Colored konjak easily catches soft rot disease when planting in low altitude area in high temperature season;White konjak grows slowly,but has the biggest expansion coefficient;M-01 has low germination rate and worse resistance.Conclusion] Xiangyu1hao is worth to generalize and plant in subtropical low altitude area.