【摘要】 本文报道以广东青皮冬瓜品种进行普通栽培,不同叶节摘心处理,不同季节和栽植密度等栽培方式,研究座果节位与果实大小的关系。结果表明,不同座果节位的果实大小是不相同的,以23～35节座果的果实最大,23节以前座果的果实最小,36节以后座果的果实大小不稳定。也就是主蔓第1～2个雌花座果的果实细小,第6个雌花以后座果也不理想,而以第3～5个雌花座果,结大果的可能性最高。 冬瓜的雌花是随着植株生长相继分化发育的。各个雌花的发育时期不同,不但它们的营养生长基础不同,而且营养条件也有明显的差别,这就决定了不同座果节位的果实发育状况。为了结大果,必须在强健的营养生长基础上结果,果实发育过程保持良好的营养生长势态。更多还原

【Abstract】 The size of fruit is one of the main factors indicating the yeild of Wax gourd.Various experiments on cultivation methods, such as general culturing, variations in pinching of nodes, planting seasons and plant densities, proved that the sizes of fruits were found to be different with nodes of fruit set. The biggest fruit was set in the 23rd to 35th nodes. The fruits setting before the 23rd node were found to be the smallest, and those setting after the 36th node varied in fruit size, showing the unstability of fruiting in this part of the plant. The results of the present study showed that big fruits can be obtained from the 3rd to 5th female flowers in the main stem, and those from the 1st or 2nd female flower are rather small, while those after the 6th female flower are of variable sizes.The female flowers of wax gourd develop during the progress of plant growth. Owing to the difference of the different vegetative growth periods, and also the differences in the nutrition conditions, the developments of each female flower at different nodes varied. Thus, the position of the node will decide the degree of the development of each fruit which will result in producing a big or small fruit.In conclusion, big fruits can only be set on the plant during its strong and vigorous vegetative growth phase and daring the fruit development period ; adequate fertilization and nutrition for the plant should be maintained.更多还原