蜀冠龙眼幼树结果母枝质量评价研究  

Evaluation on the Quality of Bearing Shoots in Young Trees of Longan Cultivar ‘Shuguan’

作　　者：黄治远[1] 李隆华[1] 张义刚[1] 郭爱民[1] 张云贵[1] 蔡智勇[1] 李骏[1] 

机构地区：[1]重庆市果树研究所,江津402260

出　　处：《西南园艺》2005年第3期18-20,共3页Southwest Horticulture

摘　　要：研究结果表明,8月上中旬抽发的健壮秋梢是蜀冠龙眼最重要的结果母枝,其着果量与枝粗度及单位长度枝梢上的复叶数呈极显著正相关,并提出了蜀冠龙眼优良结果母枝的生物学指标;花芽分化期叶片的营养元素及可溶性糖含量是影响龙眼秋梢能否成花、结果的决定因素,在营养达标范围内,叶片氮素含量与秋梢的成花、着果量成正比关系,与磷、钾素含量无相关。It was found that the healthy autumn shoot developed in early-medial August was the most important bearing shoot of longan cultivar ‘Shuguan’,and its fruit setting number had a positive relation with shoot diameter and compound leaf number in unit shoot length. A biological index was established to pick out the quality fruiting base shoot of longan cultivar 'Shuguan'.The decisive factors for flowering and fruiting were the concentration of nutrient elements and total soluble sugar in leaves at the stage of flower bud differentiation.Within the proper nutrition scope,leaf nitrogen content had a positive relation with the flower-bud formation and fruit setting number in autumn shoot,but phosphorus and potassium had nothing to do with the flower-bud formation and fruit setting number.

关 键 词：结果母枝 龙眼 质量评价 幼树 可溶性糖含量 生物学指标 花芽分化期 研究结果 单位长度 营养元素 决定因素 氮素含量 正比关系 钾素含量 秋梢 正相关 着果 成花 叶片 叶数 枝梢 粗度 

分 类 号：S667.2[农业科学—果树学] X824[农业科学—园艺学]