论文部分内容阅读
用绿色苔藓、泥炭藓、西班牙苔藓、椰子壳碎块、碎砖块、腐殖土、木炭碎块、hydrotuon(一种经高温烧制后类似于蛭石的材料)和碎石子等9种材料为栽培试验基质,观察它们对兜兰Paphiopedilum callosum生长和叶片净光合速率的影响。结果表明,试验基质对兜兰叶片净光合速率、叶绿度(SPAD)没有显著影响。在腐殖土、三种苔藓基质中,植株有较大的总叶面积、植株鲜重和冠幅。不同基质对植株的外观质量有显著的影响。木炭基质中的植株生长率比其它基质的低,在腐殖土中的叶面积比在木炭中的高25%。三种苔藓、碎砖块、椰子壳碎块基质中,植株有较大的叶面积、新芽数和较高的外观质量。木炭使植株的外观质量显著降低且导致叶片发黄甚至死亡。兜兰在腐殖土中生长最好,其次为三种苔藓和椰子壳碎块,木炭最差。
There are 9 species of green moss, peat moss, Spanish moss, coconut shell fragments, broken bricks, humus soil, charcoal fragments, hydrotuon (a material similar to vermiculite after high temperature firing) Materials for the cultivation of test substrate, observe their Paphiopedilum callosum growth and leaf net photosynthetic rate. The results showed that the substrate had no significant effect on the net photosynthetic rate and leaf green degree (SPAD) of Paphiolaranthus. In humus soil, three kinds of moss matrix, the plant has a larger total leaf area, fresh weight and crown width. Different substrates have a significant impact on the appearance quality of the plants. The plant growth rate in the charcoal matrix is lower than in other substrates, and the leaf area in humus is 25% higher than in charcoal. Three kinds of moss, broken bricks, coconut shell fragments matrix, the plant has a larger leaf area, number of sprouts and higher appearance quality. Charcoal significantly degrades the appearance of the plants and causes the leaves to yellow or even die. Paphiopedilum best grow in humus soil, followed by three kinds of moss and coconut shell fragments, the worst charcoal.