长寿县长寿湖夏橙基地 ,种植 1 984年从美国引进的夏橙良种 1 0 2 0ｈｍ2 。由于种植粗放 ,尤其是长期高剂量施用九二○加 2 ,4 -Ｄ后 ,果实品质显著下降 ,售价降低。为了恢复夏橙良种的品牌 ,增加果农经济效益 ,在长寿湖夏橙基地进行了云大— 1 2 0 (表高—芸薹素内酯 )与九二 Changshou County Longevity Lake summer orange base, planted in 1984 introduced from the United States summer oranges 10 000hm2. Due to extensive planting, especially the long-term high-dose high-dose application of 920 plus 2, 4-D, the fruit quality decreased significantly, the selling price decreased. In order to restore the summer orange brand, increase the economic benefits of fruit growers, carried out in the summer orange base Changshou Lake cloud large - 120 (Table high - Brassinolide) and nine two