Low Temperature Treatment and Flower Development in Ta-Mei-Fua Radish

Abstract

A seed vernalizing type of radish was used to find a method to promote flowering in late bolting radish for breeding in the tropics. The relationship between morphological changes of the shoot apex and metabolic changes in nitrogen, carbohydrates compounds during flower development was also investigated. 本試驗以種子春化型之蘿蔔為材料，一方面研究亞熱帶地區選種育種上對於較晚抽性母株之開花促進方法，一方面研究其低溫處理時，莖頂（Shoot apex）的發育過程與組織內氮和碳水化物之代謝情形。 經試驗結果大梅花蘿蔔成株，於選拔後剪去葉身，以根行9 ± 1℃之有光低溫處理三週，可達完全抽苔開花。