鐵濃度對‘台農1號’百香果生育之影響

Effects of Iron on the Growth and Development of 'Tainung No. 1' Passion fruit

徐筱晴(Hsiao-Ching Hsu) ； 林慧玲(Huey-Ling Lin)

《臺中區農業改良場研究彙報》 151期 (2021/06) Pp. 59-75

摘要

本研究目的探討鐵對百香果‘台農1號’（Passiflora edulis x P. edulis f. flavicarpa）生長之影響。利用水耕栽培系統控制養液鐵濃度，觀察鐵缺乏對百香果生長之影響。結果顯示缺鐵抑制百香果生長，最終鐵濃度3.36 mg.L^(-1)（每週添加3次EDTA-Fe）處理在株高、側芽數、莖乾重、葉片鐵及錳含量上顯著高於缺鐵（0 mg.L^(-1)）處理（P≤0.05）。同時0 mg.L^(-1)缺鐵處理之果實果汁總可溶性固形物含量顯著低於其他處理（P≤0.05）。鐵元素之補充對‘台農1號’百香果生長與品質果實均有提升作用。

關鍵字

百香果 ； 果實品質 ； 缺鐵

並列摘要

The aim of this study was to investigate the impact of iron on the growth of 'Tainung No.1' passion fruit (Passiflora edulis x P. edulis f. flavicarpa), focusing on the effect of iron deficiency. Results showed that iron deficiency directly inhibited the growth of passion fruit. The plant height, number of lateral buds, stem weight, leaf iron and manganese contents were significantly higher in the treatment with 0.04 mM (EDTA-Fe, added 3 times a week) than those in the treatment with 0 mM. Meanwhile, the soluble solid content in the 0 mM treatment was significantly lower than those in the control group (0.02 mM) and 0.04 mM treatment. Iron fertilizer has a huge impact on the vegetative growth and fruit quality of passion fruit. In order to improve the growth of 'Tainung No.1'passion fruit and produce high-quality fruits we should pay attention to iron supplementation.

並列關鍵字

passion fruit ； fruit quality ； iron deficiency