Studies on the differences of Physiological and ecological characteristics of the artificially raised amphidiploid in comparison with those of the parents : 〔X〕 On the temperature of seed germination

Abstract

Studies were made on the maximum, minimum and optimum temperatures of the seed germination of "Nori-Asa" (glutinous hemp), an amphidiploid crop raised between Abel. esculentus and Abel. Manigot, in comparison with those of its parents. The maximum temperature of germination was 45°C in three crops concerned. The minimum temperature was 10°C in Manihot, while 15°C in esculentus and " Nori-Asa." The optimum temperature was 25°C-27∼28°C in esculentus and "Nori-Asa"