Indexes of Tree Structure of Cylindrical Pear Orchards at the Sapling Stage

• 作者: Ran DONG Shaomin WANG Shuwei WEI Xiaochang DONG
• 来源期刊: 农业生物技术:英文版
• 学科: 农学
• 关键词: PEAR SAPLING CYLINDRICAL
• 年，卷（期）: 2019,（3）
• 页码范围: 145-146
• 页数: 2页
• 分类号: S

摘要

The reasonable tree and population structure parameters of various cylindrical pear orchards were studied.The results showed that for 3-year-old ‘Xinli No.7’,the tree height was 3.48 m,and the trunk height was 63 cm;there were 63 branches per plant,which was equivalent to 19 971 branches per 667 m^2;the leaf area index was 1.62.For the 3-year-old ‘Xueqing’,the tree height was 3.03 m,and the trunk height was 74 cm;the number of branches per plant was 57,which was equivalent to 18 069 branches per 667 m^2;the leaf area index was 1.73.The cylindrical trees of the two varieties had the following characteristics: the canopy structure was tight;the branches were equally distributed,and the number of medium branches and short branches accounted for more than 60% of the total number of branches of the whole plant.