藥劑處理對銀柳去葉及花苞脫粒之影響

Effect of Defoliation Chemicals on Leaf-Fall and Flower Buds Abscission of Cat tail willow

于洞璐(Donn-Luh Yu) ； 林純瑛(Chwen-Ing Lin)

《花蓮區農業改良場研究彙報》 18期 (2000/06) Pp. 31-37

https://doi.org/10.6957/RBHDAIS.200006.0031

摘要

為探討藥劑處理對採收前銀柳去葉及採收後花苞脫粒之影響，本試驗分別於86年度以市售落葉乾燥劑600倍、1,000倍、1,200倍；益收生長素1,000 ppm、2,000 ppm、4,000 ppm；尿素12.5％、25％、50％及87年度利用市售落葉乾燥劑600倍、1,000倍、1,200倍；99％氯酸鈉600倍、1,000倍、1,200倍、1,500倍為供試藥劑，並以不處理為對照，於當年冬季銀柳採收前二星期在宜蘭縣三星鄉進行田間試驗。86年度調查結果顯示以市售落葉乾燥劑1,000－1,200倍對銀柳之去葉效果最為顯著。87年度調查結果顯示以市售落葉乾燥劑及99％氯酸鈉不同濃度處理之植株落葉率皆在97％以上，去葉效果顯著較對照Ⅰ區71.0％及Ⅱ區48.7％為優。此外銀柳採收後未經冷藏直接瓶插三星期，效果顯示以99％氯酸鈉1,000倍稀釋液處理之花苞脫落率最低，對銀柳品質影響最小。經由86及87二個年度試驗顯示市售落葉乾燥劑及99％氯酸鈉皆可使銀柳明顯落葉，而對銀柳花苞脫粒之影響不大。故推知99％氯酸鈉1,000倍亦是銀柳之良好去葉藥劑。

關鍵字

銀柳 ； 去葉藥劑 ； 生產品質

並列摘要

In order to study the effect of defoliation chemical on the leaf and Flower-buds fall off from cat tail willow, Using the leaf-fall chemicals 600x, 1000x, 1200x; Ethrel 1,000 ppm, 2,000 ppm, 4,000 ppm; urea 12.5%, 25%, 50% as the trial chemical and CK as the contrast before two weeks when the cat willow had been harvested at Shan-Shing in the year end of 1997. And using the Leaf-fall chemicals 600x、1000x、1200x; 99% Sodium Chlorate 600x、1000x、1200x、1500x as the trial chemical in the year end of 1998. In the investigation result of 1998 showed that the leaf-fall chemical of market at 1000-1200x had the best effect to the cat tail willow. And in 1999 showed all that been tried cat-willow had the leaf-fall rate over 97% better than that CK (plotⅠ) 71% and (plotⅡ) 48.7%. Flower buds-fall rate from the direct vase inserting without refrigeration after the cat willow had been harvested three weeks and the simulating export refrigeration three weeks then vase inserting one month showed that treatment of 99% Sodium Chlorate 1000x dilute solution had the least influence to the Production quality at plotⅠ25.7% and plotⅡ10.2%. So it also maybe a good defoliation chemical to cat willow.

並列關鍵字

Cat tail willow ； defoliation chemical ； Production quality