9种魔芋属植物观赏价值及引种适应性评价

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。

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

9 kinds of native species of Amorphophallus were introduced in Shenzhen.The growth and development habits, adaptability ,adversity resistance and ornamental value of the 9kinds of Amorphophallus were observed and recorded. Constructing an evaluation system of ornamental value with 13 sub-factors in 3main aspects .5 main factors that determine ornamental ability are growth status, plant shape, preservation rate, leaf color and shape, ornamental value of flowers and fruits. A. paeoniifolius and A. bulbifer get highest score for stress resistance and adaptability at the same time according to the model analysis and actual introduction performance.These two kinds of Amorphophallus have strong adaptability, good development and strong vitality after being introduced, and they can quickly adapt to the local climate of Shenzhen. The highest overall ornamental score species are A.variabilis, A. paeoniifolius, A. bulbifer, A. dunnii . After planting, these plants have compact shapes and good landscape effects.They can be introduced vigorously and promoted as new excellent ground cover plants. A. konjac, A.haematospadix are weak after introduced. The ornamental performance of two above is not good, and it is not recommended to introduce in Shenzhen.