套袋对大花蕙兰花箭高度的影响

采用85%～90%遮光率的铝箔纸和100%遮光率的遮光布两种材料，对大花蕙兰‘红霞’和‘往日回忆’花箭进行套袋试验，旨在提高大花蕙兰花箭长度及观赏价值。结果表明: 往日回忆在套袋后，花箭高度极显著提高了7892 cm，花序比例显著提升0039 0，小花间距显著增大0484 cm。红霞在套袋后花箭高度极显著提高了13125 cm，花序比例显著上升0038 8，小花间距显著增大了0685 cm。85%～90%遮光率与100%遮光率均可以显著提升花箭质量，其中85%～90%遮光处理可以使花箭高度极显著提高662 cm，花序比例极显著提升00808，小花间距极显著增大0688 cm。而100%遮光处理可以使花箭高度极显著提高1276 cm，花序比例极显著提升00964，小花间距极显著增大0958 cm。但是100%遮光处理下小花苞瘦小畸形，未能正常开花。套袋条件下，与正常栽培管理的对照植株相比，开花时间大约推迟10～15 d。

Effect of bagging on the flower stalk height in Cymbidium hybrid

Two shading treatments， aluminium foil with the shading rate of 85%-90% and black out cloth with the shading rate of 100%， were used in the bagging experiment on Cymbidium Plair ‘Days Memory and C. Royal Red ‘Princess Nobuko in order to increase the height of flower stalk and ornamental value. The result showed that the inflorescence height， inflorescence ratio and floscule spacing of Cymbidium Plair ‘Days Memory and C. Royal Red ‘Princess Nobuko significantly increased by 7892 cm and 13125 cm， 0484 cm and 0685 cm， 0039 0 and 0038 8 respectively after bagging. Two shading treatments can both significantly increase the inflorescence quality， inflorescence height， inflorescences ratio and floscule spacing increased 662 cm， 00808 and 0688 cm in the treatment of black out cloth with the shading rate of 100%， and increased 1276 cm， 00964 and 0958 cm in the treatment of aluminium foil with the shading rate of 85%-90%. However， the buds grew abnormally in the treatment of black out cloth with the shading rate of 100%， which could not blossom. Compared with the control， the flowering time in the bagging treatment was delayed to 10-15 d later．