9种魔芋属植物观赏价值及引种适应性评价

Evaluation of Ornamental Value and Introduction Adaptability of 9 Kinds of Amorphophallus

以9个原生种魔芋为试验材料,通过在深圳地区引种,观察并记录其生长发育、适应性、抗逆性、观赏价值表现情况并建立包括适应性、抗逆性、观赏性状等3个主要因子共13项次级因子的观赏性评价体系。结果表明:疣柄魔芋、珠芽魔芋抗逆性和适应性得分均较高,这2种魔芋引种后适应力强、发育良好、生命力旺盛,能很快适应深圳本地气候;野魔芋、疣柄魔芋、珠芽魔芋、南蛇棒综合观赏性得分较高,定植后植株紧凑,景观效果好,可大力引种并作为新优地被植物进行推广;魔芋和红柱魔芋引种生长势弱,观赏性表现不佳,不建议在深圳地区继续引种。

9 kinds of native species of Amorphophallus were introduced in Shenzhen.Their growth and development habits,adaptability,stress resistance and ornamental value was observed and recorded.An evaluation system of orna-mental value with 13 sub-factors in 3 main aspects was constructed.The results showed that Amorphophallus paeoniifolius and Amorphophallus bulbifer got higher scores in stress resistance and adaptability,they had strong adaptability,good development and strong vitality after being introduced,and they could quickly adapt to the local climate in Shenzhen.Amorphophallus variabilis,Amorphophallus paeoniifolius,Amorphophallus bulbifer and Amorphophallus dunnii had higher comprehensive ornamental scores.After planting,these plants had compact shapes and good landscape effects.They could be introduced vigorously and promoted as new excellent ground cover plants.Amorphophallus konjac and Amorphophallus haematospadix had weak growth potential and poor ornamental performance after introduction.It was not recommended to continue to introduce Amorphophallus konjac and Amorphophallus haematospadix in Shenzhen.