The inheritance and multiple regression and correlation of the yield components, i.e. the tiller number per plant ( X1), weight per tiller ( X2), and yield per plant ( Y), in water spinach ( Ipomoea aquatica Forsk) were studied with 18 cultivars. 以18个蕹菜品种为材料,对分蘖数(X1)、单蘖重(X2)和株产(Y)的数量遗传、多元回归与相关关系进行了研究。