缺鐵對落花生生育影響之研究

Studies on the Effects of Growth and Development of Peanut (Arachis Hypogaea L.) by Iron Deficiency

李超運(Chau-Yunn Lee) ； 蔡養正(Yang-Zeng Tsai) ； 賴光隆(Kwan-Long Lai)

《花蓮區農業改良場研究彙報》 5期 (1989/05) Pp. 9-10

摘要

為探討鐵與不同pH值處理對落花生生育之影響，選擇Spanish型台南選9號和台南11號為供試品種，採用分離根與分離胚培養方式進行。在分離根的無菌培養結果顯示，花生的根於缺鐵的環境，生育明顯受抑制，無法生長，證明鐵為根部生育的重要元素。分離胚培養結果，顯示不含鐵處理明顯地抑制地上部與地下部的生育，葉部於不含鐵處理或高pH值處理中表現黃化，因此，胚培養法如加以改善，可供為觀察鐵對落花生生育生理影響程度的利用。

並列摘要

The object of this study was mainly to investigate the effects of iron and pH values on the morphology and development of peanut plant (Arachis hypegaea L.). Two peanut cultivars namely, Tainan hsuan No. 9 and Tainan No. 11, were used and cultured in aseptically excised roots and embryo cultured in agar media. With Fe-proficiency or Fe-deficiency treatment. Excised roots cultured showed iron is necessary for the growth of root. Fe-deficiency will significantly inhibit the growth of the root. Excised embryo cultured aseptically in the Fe-deficient medid showed limited fresh and dry weight increaments than the contrast ones, and the leaves showed the Fe-deficiency symptom of chlorosis. This is suggesting that embryo culture method can be utilized effectively in the physiological studies of iron or other micronutrient in the future.