油茶不同海拔高度栽培试验的调查

Survey on Cultivation Experiment of Different Altitudes of Camellia oleifera

采用长林系列油茶品种建立早实丰产示范林,经过5年的抚育管理,植株生长良好,在其示范林内设280m、560m、730m、820m4个不同海拨高度栽培样区分别进行生长量、花芽分化率的调查分析。结果表明:不同海拔高度栽培对油茶树高、地径、冠径生长量及花芽分化率均有一定的影响,在海拔高度280~730m时的油茶树高、地径、冠径的生长量较大,而海拔高度在820m时,其生长量略差;海拔高度在280m、560m的花芽分化率最优,多花率均为48.89%,中花率分别为38.89%和35.56%,海拔高度在730m时多花率、中花率分别为41.44%和43.33%;海拔高度在820m时,多花率仅为6.67%,中花率为32.22%;从油茶的生长量与花芽分化率情况分析,海拔高度在280~730m的地带油茶生长量和花芽分化率较好,适合油茶栽培。

Setting up early-bearing high-yielding model plantation by the series of Changlin of Camellia oleifera variety, and good growth of plants after three years. In this survey,the growth and flower bud differemellia ohi fera were analyzed and studied from four altitudes in sample area,respectively were 280m, 560 m,730 m and 820 m. Result：The altitude of cultivating Camellia oleifera had a greater effect on the tree hameter ,crown diameter and flower bud differentiation of Camellia oleifera. Analyzing form the tree height, ground diameter,crown diameter of Camellia oleifera ,the better altitude was between 280 m and 730 m,when at 820 m, the growth of Camellia oleifera was worse. Analyzing form the flower bud differentiation,the best al280m and 560m,the highest average of flower bud differentiation rate up to 48. 89 %,the medium flower bud differ-entiation rate respectively were 38. 89% and 35. 56%. The highest and medium flower bud differentiation rate respectively were 41. 44% and 43. 33 % when at 730m. However when at 820 m,the highest flower bud differentiation only was 6. 67% and the medium flower bud differentiation rate was 32. 22%. Through the study of the growth and flower bud differentiation rate of Camelliaoleifera ,the suitable altitude of planting Camellia oleifera wtween 280 m and 730 m.