氯化鈣、ABA及肥料濃度對粗肋草、蔓綠絨耐寒性之影響

Effect of Calcium Chloride, ABA and Fertilizer Concentration on Low Temperature Resistance of Aglaonema and Philodendron

范美玲(Mei-Ling Fan)

《花蓮區農業改良場研究彙報》 14期 (1997/06) Pp. 22-29

https://doi.org/10.6957/RBHDAIS.199706.0022

摘要

0.1％氯化鈣可減輕銀后粗肋草、黑后粗肋草之寒害發生率；氯化鈣前處理時間與增進粗肋草之耐寒性有明顯相關。銀后粗肋草以0.1％氯化鈣處理後2天內，再移入5℃2天，均具有增進耐寒性之效果；而黑后粗肋草則處理後7天內，均具有增進耐寒性之作用，且處理後5天內，進行5℃處理2天，均不會有寒害發生。10、20、30mg/l濃度之ABA處理均可減輕黃金蔓綠絨、銀后粗肋草及黑后粗肋草寒害發生；其中黃金蔓綠絨及黑后粗肋草以20mg/l濃度之ABA處理效果較佳，而銀后粗肋草則以30mg/lABA處理較好，但ABA是否如氯化鈣一般有適當之處理時間，則有待更進一步之試驗證實。除基肥外，每週噴施半量（1/2J）Johnson氏完全培養液可減輕黃金蔓綠絨寒害之發生，而銀后粗肋草及黑后粗肋草則分別以兩倍量（2J）、全量（J）Johnson氏完全培養液增進耐寒性之效果較佳。

關鍵字

粗肋草 ； 蔓綠絨 ； 寒害 ； 鈣 ； 肥料濃度

並列摘要

Calcium chloride treeatments reduced chilling injury and cold sensitivity of Aglaonema. The effect of calcium chloride has been evaluated on chilling sensitive Aglaonema. Electrical conductivity was used for asssessing the degree of chilling injury. Exposure of Aglaonema to 5℃ for 2 days resulted in a 40% electrolyte leakage and induced irreversible chilling injury. The plants gained the best protection against chilling injury by pretreatment with 0.1% calcium chloride for 2 days. Calcium chloride helped the plant maintain the intergrity of cell membrane and thus reduced the leakage. The effect of ABA has been evaluated on chilling sensitive Aglaonema and Philodendron. ”Maria” and ”Golden Pride” gained the best protection against chilling injury by treatment with 20mg/l ABA. Aglaonema and Philodendron were treated with different nutrition level of double (2J), full (J), half (1/2J) and quater (1/4J) strength Johnson's solution. The optimum concentration of fertilizer varied depending on cultivars.

並列關鍵字

Aglaonema ； Philodendron ； Chilling Injury ； Calciun ； ABA ； Fertilizer concentration