【摘要】 本文以芥蓝4个品种的分期播种试验探讨了不同品种、花芽分化期和植株生长与菜薹发育的关系。结果表明,早、中、晚三个品种在广州地区7-12月播种都能形成菜薹,以10月以前播种的植株生长良好,菜薹产量较高。7-8月播种,植株和菜薹都较发达,菜薹质量不是越早播越好。11月以后播种,生长和菜薹发育都不很理想。 4个品种分期播种的花芽分化和菜薹发育的变化表明,适时的花芽分化,才能使菜薹发育良好,否则对菜薹的发育不利。 植株重量,叶面积大小与菜薹重量的相关系数分别为0.8767和0.3598呈显著的正相关,因此,花芽分化后,特别是过早或过迟花芽分化后,菜薹的发育因菜薹形成过程的生长程度而不同。更多还原

【Abstract】 Tests in four cultivars of Chinese kale with different sowing time show,that flowef stalks can formation when sowed at any time from July to December in Guangzhou, and those sowed before October grow be-tter and their flower stalks are also heavier. But the quality of flower stalks are not better with earlier time.If flower bud differentiation at optimum time, flower stalks will de-velop the best, earlier or later, they will not develop well.The weight of flower stalks is directly correlative with the growth and leaf area of the plants, the correlative coefficient is 0.8768 and 0.3595,respectively. Therefore,the development of flower stalks depends on the degree of growth of the plants during flower stalk formation更多还原