不同光质对峨眉岩白菜农艺性状的影响

通过覆盖5种不同颜色的彩色塑料薄膜获得5种不同光质处理，比较研究了2个年度内不同光质处理对峨眉岩白菜的形态指标和生物量的影响，结果表明：（1）覆盖白膜有利于峨眉岩白菜株高、株幅、叶片数、叶片长度、叶片宽度和根状茎直径的增加，覆盖蓝膜最不利于上述形态指标的增加。（2）红膜、白膜和黄膜处理有利于峨眉岩白菜叶片鲜重和干重的增加，而蓝膜处理最不利于峨眉岩白菜叶片增加鲜重和干重，不同光质对株根状茎生物量和株生物量的影响未达到差异显著水平。（3）综合12个形态和生物量性状，覆盖白膜最适于峨眉岩白菜生长和干物质的积累，覆盖蓝膜对岩白菜的生长和干物质积累有显著的抑制作用。

Effects of Light Quality on Agronomic Characteristics of Bergenia emeiensis

Five light quality treatments were obtained by covering white, red, green, yellow and blue plastic films on the canopies above plants and their effects on the morphological and biomass characters of Bergenia emeiensis were researched during two years. The results showed that covering white film was beneficial for increasing plant height, plant width, leaf number, leaf length, leaf width and rhizome diameter while covering blue film was unsuitable for the increase of above characters. The results also showed that covering red, white and yellow films was favourite to increase leaf fresh weight and leaf dry weight while covering blue film would inhibit the increase of leaf fresh weight and leaf dry weight. There were no significant differences in rhizome biomass per plant and biomass per plant among five light quality treatments. From an integrated view of 12 morphological and biomass characters, covering white film was most suitable for the growth and accumulation of dry materials while covering blue film could significantly restrain the growth and accumulation of dry materials in B. emeiensis.