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紫苏为一年生直立草本植物。栽培种有红紫苏和青紫苏两个品种。其长势强旺,株高可达1.8m以上。叶为交互相对着生,卵圆或广卵圆形,总状花序,顶生或腋生,花萼钟状,花冠管状,坚果为卵形含1粒种子。我所自1992年开始进行紫苏繁种出口,经过几年的栽培实践,探讨了紫苏高产采种技术,现介绍如下: 1 适期播种、培育壮苗播种期对紫苏采种产量的高低影响很大,播种过早,开花亦早,开花结荚正遇高温天气,结实不良。播种过迟,营养生长时间缩短,植株尚小就开花结荚,影响种子的产量和质
Perilla is an annual upright herbaceous plant. Cultivated species have two varieties of red and purple perilla. Its growing strong, up to 1.8m above plant height. Leaves oppositely oriented to students, ovoid or broadly ovoid, racemes, terminal or axillary, calyx campanulate, corolla tube-shaped, nut-ovoid with 1 seed. Since 1992, we have started the export of perilla. After several years of cultivation practice, we explored the technology of perilla perilla high-yielding. Now we have introduced the following: 1 The effects of sowing and cultivating strong seedling on the yield of Perilla frutescens Very large, sown too early, flowering is also early, flowering pod encounters hot weather, bad fruiting. Sowing too late, vegetative growth time shortened, the plant is still young, flowering pods, affecting seed yield and quality