摘要
对巨峰葡萄副梢结果母枝的结实特点、产量因素及其与节位及树龄的关系进行了研究,并以主梢结果母枝为对照进行了比较分析。发现副梢母枝抽生的结果枝数、花穗数、花穗长度、每花穗的小花数均显著或极显著高于主梢母枝,并且与节位呈极显著或显著的直线相关或曲线相关关系。副梢结果母枝以靠近基部和中部的节位芽眼质量较好,第7节开始质量有下降的趋势,主梢母枝近基都节位也易形成花芽,但花芽质量以中上部者较佳。试验还表明,以每一芽眼生产的浆果果粒数作为产量因素,副梢是主稍母枝的2.3倍,差异极显著。3年生幼龄巨峰与6年生巨峰比较,副梢母枝的结实能力无显著差异。
The fruiting characteristics of mature fruiting canes derived from lateral shoots were investigated and compared with primary canes of ' Kyoho ' grape ( V. vinefera ? V. labrusca) . 40 lateral canes and primary canes were used for investigation respectively. All test canes were pruned to 8 nodes and tied horizontally onto the trellis wires.
The results indicated that lateral canes ( LC ) produced significantly more fruiting shoots and clusters. The flower cluster size (cluster's length and number of florets per cluster ) of LC was significantly larger than those of PC, No significant differences in bud burst and berry setting were found between LC and PC. The number of berries per node of LC were 2.3 times as much as those of PC.
The nodes at the base or middle portion of LC were the most fruitful. In contrast, PC were more fruitful at nodes of apices or middle portion.
Possible explanations for the higher i'ruitfulness of LC and its corresponding pruning technique are discussed.
出处
《园艺学报》
CAS
CSCD
北大核心
1992年第2期117-122,共6页
Acta Horticulturae Sinica
关键词
葡萄
结实特性
副梢结果
母枝
Grape
'Kyoho' grapevine
Fruiting characteristics
Lateral cane
Primary cane
