摘要： 调查了秋季栽培不同遮光程度对卡特兰和寒兰2种兰花叶片生长、植株养分含量和开花的影响。试验从8月初起在无遮光及遮光率30%，60%，90%的4个遮光处理下栽培80 d后，搬入温度为13~30℃的温室统一管理，观测至次年3月中旬。结果表明：无遮光处理叶片短小、黄化且灼伤显著；遮光率30%处理养分积累最多；遮光率60%特别是90%处理叶片长、色浓绿、养分积累较少。不同遮光处理间的开花率差异显著，遮光率30%>无遮光>遮光率60%>遮光率90%；花茎长度也以遮光率30%处理最大。秋季较强的日照管理有利于卡特兰和寒兰2种兰花植株的养分积累与开花。

关键词: 兰花, 遮光, 养分, 生育

Abstract: Sophrolaeliocattleya and Cymbidium kanran had grown for 80 days from beginning of August on the shading level of 0,30%,60% and 90%.After moving the plants into 13-30℃ greenhouse,the flowering rate and flower stalk length were measured till the middle of next March.The results showed that,short leaves,pale green and burnt remarkably presented with no shade;the most nutrient accumulation level was at 30% shade,on 60% shading level especially 90%,the leaves were long,dark green with less nutrient accumulation.The difference of flowering rate was significant between each treatment,which was 30% shade>no shade>60%>90%.The longest flower stalk length was at 30% shade.The comparatively strong sunshine was propitious to the nutrient accumulation and flowering in autumn cultivation of Sophrolaeliocattleya and Cymbidium kanran.

Key words: Orchid, Shading, Nutrient content, Growth

中图分类号: 

• S682.324.4+3