套袋对大花蕙兰花箭高度的影响

Effect of bagging on the flower-stalk height in Cymbidium hybrid

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0.0390，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0.0388，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。

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.