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有限生长类型番茄品种‘北京10号’(生长势弱)和‘早丰’(生长势强)保留主枝第一花序下第二侧枝作营养枝,植株生长快,叶面积大,根系活力强,光合强度高,~(14)C光合产物向果实和根系的分配率高,早期产量和总产量增加。与对照相比,‘北京10号’营养枝上留3～4片叶摘心,早期产量提高8.8％～13.8％,总产量提高7.5%～5.8％,‘早丰’营养枝上留2～3片叶摘心,早期产量提高4.8％,总产量提高11.9％～8.5％。放任营养枝生长造成减产。
The limited growth type The tomato variety ’Beijing No.10’ (growing vigor is weak) and ’ZF’ (growing vigor) retained the second branch of the main branch under the first inflorescence as vegetative branch, the plant grew fast, the leaf area was large, the root vigor was strong , Photosynthetic intensity is high, the distribution rate of ~ (14) C photosynthate to fruits and roots is high, and the early yield and total yield increase. Compared with the control, the “Beijing No. 10” nutrition branch left 3 or 4 leaves on the heart, the early yield increased by 8.8% to 13.8%, the total output increased by 7.5% to 5.8%, ’ZF’ nutrition branch left 2-3 Leaf topping, the early output increased by 4.8%, the total output increased by 11.9% ~ 8.5%. Letting the growth of vegetative shoots reduce production.