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本文以秧苗生长发育程度(即秧苗大小)表示苗龄,探讨不同苗龄秧苗定植后的生长规律及产量形成特点。番茄、辣椒秧苗苗龄不同,总产量无显著差异,但随着苗龄增大,前期产量比例增加,后期产量较低。在定植后还苗生长较好的保护地条件下,不同苗龄间的产量时期分布的差异减小。不同苗龄番茄、辣椒秧苗定植后约有20天左右明显的生长调整期。在这期间,较小苗龄的植株相对生长率高,特别是组成相对生长率的净同化率较高,根系活动力较强,同时秧体生长量迅速上升,为中、后期果实数量的增加奠定良好基础。为提高前期产量而利用大苗定植时,必须具有较好的育苗条件。中苗具有较强活力.适用于保护地及露地早熟栽培。6片叶未规蕾番茄苗可用于大面积生产,而未现蕾辣椒小苗不宜应用。本试验在沈阳学院试验地进行,番茄1982—1983年,辣椒1983—1984年。
In this paper, seedling growth and development level (ie, seedling size) that seedling age, seedling seedling age of different planting law of growth and yield formation characteristics. The seedlings of tomato and pepper had different seedling ages, but there was no significant difference in total yield. However, with the increase of seedling age, the proportion of early yield increased and the late yield was lower. The difference in the distribution of different seedling ages among the seedlings decreased with the protection of seedlings after planting. Different seedlings of tomato, pepper seedlings planted about 20 days after the apparent growth adjustment period. During this period, the relative growth rate of the plants of the younger seedling age was higher, especially the net relative assimilation rate of the relative growth rate of the composition was higher, the root activity was stronger, and the growth of seedlings rapidly increased, which was the increase of the number of fruits in the middle and later stages Lay a good foundation. In order to improve the pre-production and use of seedlings colonization, must have better breeding conditions. Medium seedlings have a strong vitality. Suitable for protected areas and open-field cultivation. 6 leaves without bud bud seedlings can be used for large-scale production, but not budding pepper seedlings should not be applied. The experiment was conducted experimentally in Shenyang Institute of Tomato 1982-1983, Pepper 1983-1984.