鳳梨釋迦果園防風栽培及災後復育技術之研究

Abstract

鳳梨釋迦果樹防風試驗中顯示，植株以水平棚架整枝方式之防風效果最佳，枝條折枝率最低；果園設置防風網可降低植株枝條折枝率，保護範圍可達防風網高度之7倍距離；果樹在風災中以果實擦傷受害率最高，在強 (颱) 風來臨前去除果實周邊枝葉及果實加套舒果網等處理均具有保護果實之效果，可顯著降低果實擦傷率。鳳梨釋迦災後復育試驗結果顯示，植株於9月下旬10月上旬修剪並進行夜間燈照處理，開花率可分別達82.9%和72.7% (對照組42.8%和24.0%)；處理組產期在4月間，平均單果重717.2g (對照組產期在3月，果重547.8 g)。以上結果顯示，在風災過後利用修剪配合夜間燈照處理，可促進鳳梨釋迦11月份再次開花結果，達到快速復育之目標。 Display atemoya fruit wind experiment, plants with windbreak effect horizontal trellis training mode is the best, had the lowest branches broken rate; orchard setting windbreak net can reduce the branches broken rate, the scope of protection of windproof net height of 7 times the distance. The injury of fruit bruises victimization rate was the highest in the storm, in the strong wind coming prior to removal of surrounding foliage and fruit jacketed set fruit net treatment had a protective effect of fruit, can significantly reduce the fruit injured rate. Atemoya post disaster restoration results show the treatments of pruned, night lighting in late September and early October, that blossom rate can reach 82.9% and 72.7% respectively (control group 42.8% and 24%); treatment group fruits were harvested in April, average fruit weight 717.2g (control group, produced in March, fruit weight 547.8 g). The above results indicate, by pruning and night light treatment after the wind disaster, can promote atemoya blossom and fruiting in November, to achieve rapid restoration goals.