对不同品种的葡萄品种,剪枝对树干坏死有影响,但对芽、芽发育无影响

P. Faúndez-López, J. Delorenzo-Arancibia, G. Gutiérrez-Gamboa, Y. Moreno-Simunovic
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引用次数: 7

摘要

本试验进行了两项实验研究。首先,我们的目标是量化赤百纳(Cabernet Sauvignon)葡萄的地上永久性(臂和树干)和非永久性(刺)木质结构上的修剪所产生的木材坏死。第二项研究的目标是评估距直枝修剪葡萄藤茎基部的修剪距离对“歌海娜”、“品丽珠”和“马尔贝克”品种的芽和进一步的芽发育的影响。在第一次试验的基础上,木材坏死的面积和深度受到节点上进行修剪的距离的高度影响。此外,被切割的骨刺直径与切割后产生的坏死木材的面积或深度均无显著相关。在“赤霞珠”(Cabernet Sauvignon)用栅栏修剪过的25岁葡萄藤中,地上葡萄藤木材坏死面积占总木材面积的9%至44%。与树干(坏死面积的1 - 28%)相比,每根藤的枝部坏死木材的比例(坏死面积的20% - 46%)更大。第二次试验的结果表明,与通常认为的相反,在研究中考虑的任何品种中,距修剪节点的距离不影响骨刺芽和进一步的芽发育。
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Pruning cuts affect wood necrosis but not the percentage of budburst or shoot development on spur pruned vines for different grapevine varieties
Two experimental studies were performed in this trial. In the first, the aim was to quantify wood necrosis generated by pruning cuts on aboveground permanent (arms and trunks) and non-permanent (spurs) woody structures of 'Cabernet Sauvignon' vines. In the second, the goal was to evaluate the effect of cutting distance from the basal end of the shoot in spur pruned vines on budburst and further shoot development for 'Grenache', 'Cabernet Franc' and 'Malbec' varieties. Based upon the first experiment, the area and depth of wood necrosis was highly influenced by the distance where the pruning cut was performed over the node. Furthermore, the diameter of the spur that was cut was not significantly related to either the area or the depth of the necrotic wood generated after the cut. Aboveground vine wood necrotic area ranged from 9 to 44 % of the total wood area measured in 'Cabernet Sauvignon' cordon trained spur pruned 25-year-old grapevines. For each vine a larger proportion of the necrotic wood (20 to 46 % of necrotic area) was present in the arms when compared to the trunks (1 to 28 % of necrotic area). As a result of the second experiment, spur budburst and further shoot development was not affected by the distance from the node where the pruning cut was performed for any of the cultivars considered in the study contrary to what is commonly believed.
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