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矮牵牛(Petunia hybrida),茄科矮牵牛属1—2年或多年生草本,花大而艳丽,近年来在花坛布置、庭院美化等方面应用日益增多。但其种子细小(9000粒/克),育苗技术较难掌握,实践中常因其出苗不全而致生产失败。现将一套较好的矮牵牛育苗技术,介绍如下。 1.基质选择 矮牵牛育苗对基质的选择非常重要。大田普通土壤质硬,通透性差,对矮牵牛的发芽有负影响,通常选择优质蛭石做育苗基质。蛭石细软,保水力好,符合矮牵牛种子细小特点的发芽要求,播后可和基质紧密贴合,利于发芽。
Petunia hybrida, Solanaceae Petunia is 1-2 years or perennial herb, large and beautiful flowers, in recent years in the flower arrangement, landscaping and other aspects of increasing use. However, its seeds are small (9000 grains / gram), seedling technology is more difficult to grasp, often due to its practice in the emergence of incomplete production failure. Now a better set of petunia seedling technology, introduced below. 1. Substrate selection Petunia seedling matrix selection is very important. Ordinary soil field hard, poor permeability, the germination of petunia have a negative effect, usually choose high-quality vermiculite seedling substrate. Vermiculite soft, good water retention, petunia seed in line with the characteristics of small germination requirements, sowing and substrate can be closely fit, conducive to germination.