低溫處理對袋植‘Premier’桃樹結果之影響

Effect of Chilling Treatment on the Fruiting Performance of 'Premier' Peach Grown in Container

試驗評估扦插繁植之桃樹Premier品種經袋植一年後以7°C低溫處理其結果特性。經低溫處理0、10、20及30天之桃樹，其平均果粒重分別為34.4,49,71.4和44.9克。桃樹經10天、20天及30天的低溫處理，於移出泠房後，自始花日期至果實成熟日期之天數分別為98天、89天及82天，對照組處理者為95天。本試驗結果提供桃樹Premier品種於低海拔地區以容器高密度栽培之選擇，而人為低溫處理之經濟效益則尚有待進一步評估。

Fruiting performance of 1-year-old self-rooted 'Premier' peaches grown in container was examined. The plants received chilling treatment at 7°C for 0, 10, 20 and 30 days, their average fruit weights were 34, 46, 71 and 45 g respectively. Under the different treatments, the days from flowering to fruit ripening were 95, 98, 89 and 82 days respectively. These results may provide a basis for further trial of the container grown 'Premier' peach at low altitude in Taiwan.