營養元素對洋桔梗生長與開花之影響

洋桔梗原生於美國南部，主要分布在內布拉斯加州、科羅拉多州及德州之石灰岩草原地帶，屬龍膽科之宿根草本花卉，傳入日本經由民間及企業育種家將之發揚光大，栽培品種超過400個。由於花型、花色豐富及瓶插壽命長深受消費者喜愛，並名列世界十大切花之一。田間栽培洋桔梗常會發生下位葉出現黃斑症狀，本研究將由探討營養元素的缺乏、氮濃度和型態、氮鉀濃度及養分需求對洋桔梗生長及開花影響，以瞭解洋桔梗的營養管理。 Eustoma grandiflorum (Raf.) Shinn, a perennial plant of Gentianaceae, is native to semi-arid limestone prairie region of the southern part of the United States, mainly inhabits in Nebraska, Colorado, and Texas. There are more than 400 cultivars bred in Japan. Because of various flower types and colors and long vase life, Eustoma is one of the most popular cut flowers worldwide. In Taiwan, Eustoma plants are often see to exhibit yellow spots in lower leaves, suggesting nutritional problems. The purpose was to determine the nutrient management, included function of nutrient elements, the nitrogen forms and ratios, the concentration of nitrogen and potassium, and the requirement of nutrient elements.

Subjects

洋桔梗

開花

生長

水耕

營養元素

植體分析

光合作用

Publisher

國立臺灣大學

Type

thesis