The current study no significant treatment effect upon green leaf production as show in table 3 fresh weight harvest yields ranged from 8.00-8.78 in the hot rainy season and from 6.85-7.08 in the cool season. The absence of treatment effect upon green leaf yield is partially due to each treatment being exposed to full sunlight during the green leaf cycle but also indicates the absence of any residual effect of the alternating blanched leaf production treatment. The gree yield of chinese chive decreased in the dry cool season (december) due to the reduced ambient temperature in thailand which suppressed metabolic enzyme activity resulting is slower growth and lower yield