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研究了不同遮荫对6种山茶科植物叶绿素和生长的影响。结果表明:香港红山茶(Camellia hongkongensis)叶片与大果红山茶(Camellia magmocarpa)叶片的叶绿素a、叶绿素b和总叶绿素含量在3种遮荫下表现相同,均为70%遮荫>50%遮荫>全光照,表明两者的耐荫性幅度较宽;张氏红山茶(Camellia changii)叶片叶绿素a、叶绿素b和总叶绿素含量均为50%遮荫>70%遮荫≈全光照,表明略耐荫且不喜光;海南大头茶(Gordonia hainanensis)叶片叶绿素a、叶绿素b和总叶绿素含量均为,50%遮荫>70%遮荫>全光照,也是略耐荫不喜光;而粗毛石笔木(Tutcheria hirta)和越南抱茎茶(Camellia amplexicaulis)叶绿素a和叶绿素b均为,70%遮荫>50%遮荫,耐荫性较好忌全光照。遮荫下的成活率(除张氏红山茶成活率100%外)和生长量均比全光照下的高。总之,全光照下不利于6种山茶科植物的苗木存活和生长量增长,50%和70%遮荫能不同程度地提高6种山茶科植物的存活率和生长量,表明山茶属植物为中性至偏耐荫植物。
The effects of different shading on the chlorophyll and growth of six species of theaceae were studied. The results showed that the content of chlorophyll a, chlorophyll b and total chlorophyll of leaves of Hong Kong Camellia hongkongensis and Camellia magmocarpa were the same under the three kinds of shading, which were all 70% shading> 50 % Shading> full shading, which indicated that the shading tolerance of the two cultivars was wide. The contents of chlorophyll a, chlorophyll b and total chlorophyll of Camellia changii were 50% shading> 70% shading ≈ Light, indicating slightly shady and unpleasant light. The content of chlorophyll a, chlorophyll b and total chlorophyll of Gordonia hainanensis was 50% shade> 70% shade> full light, The chlorophyll a and chlorophyll b of Tutcheria hirta and Camellia amplexicaulis were 70% shading> 50% shading, respectively. Survival rate under shading (except for the survival rate of 100% of Camellia sinensis) and growth are higher than the full light. In conclusion, under full light, the survival and growth of seedlings of six camellia plants were not conducive to the survival and growth of seedlings. 50% and 70% of shading increased the survival and growth of six camellia plants to some extent, indicating that Camellia Sex to shade plants.