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基质持水量对番茄种子发芽、生长有着显著的影响，保持７０％和８５％的基质持水量有利提高种子发芽率和壮苗指数，前期大于后期，总体以８５％的持水量效果最好。
The water holding capacity of substrate had a significant effect on the germination and growth of tomato seeds. Maintaining 70% and 85% water holding capacity of substrate could improve the germination rate and seedling index of the seed, the former was greater than the latter, and the overall water holding capacity of 85% was the best.