UV—C照射对辣椒种子发芽及幼苗生长的影响
2014-10-21李丹丹张付远
李丹丹 张付远
摘要 [目的]为了研究UV-C照射对辣椒种子发芽及幼苗生长的相关影响。[方法]按照农作物发芽标准,测定种子发芽率、发芽势,并测定株高、茎粗、干鲜重等指标。[结果]UV-C辐射能使辣椒种子发芽势降低1.5%~10.6%,但对发芽率没有影响。10、20 h处理使辣椒种子的出苗率分别提高18%和17%。通过测定生长指标,发现10 h处理能使辣椒幼苗的茎粗增加,植株高度降低,干鲜质量增加,壮苗指标有所提高。[结论] UV-C照射处理辣椒种子10 h的效果最好。
关键词 UV-C照射;辣椒种子;辣椒幼苗;生长
中图分类号 S505 文献标识码 A 文章编号 0517-6611(2014)33-11629-03
Effects of UV-C Radiation on Germination and Growth of Pepper
LI Dan-dan, ZHANG fu-yuan
(Jiangxi Environmental Engineering Vocational College, Ganzhou, Jiangxi 712100)
Abstract [Objective] The research aimed to study the effects of UV-C radiation on pepper seedl germination and seeding growth. [Method] According to the germination standard of the crops, the rate of the seedling emergence and the germination potential were measured, and the indicators such as plant height, stem diameter and dry and fresh weight, etc were measured. [Result] UV-C could decrease pepper seed germination by 1.5%-10.6%, while 10 h and 20 h radiation could remarkably increase pepper seedling emergence rate by 18% and 17% respectively. 10 h radiation could decrease seedling height, but increase seedling stem, fresh and dry weight. This was beneficial for breeding strong and vigorous seedling. [Conclusion] The optimum treatment was 10 h.
Key words Ultraviolet-C Radiation; Pepper seed; Pepper seedling; Growth
作者简介 李丹丹(1983-),女,河南开封人,讲师,从事植物栽培生理生态方面的研究。
收稿日期 2014-10-11
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辣椒又名番椒、辣子等,原产南美热带地区。它是一年生的草本茄科植物,其维生素C含量在蔬菜中首屈一指。设施蔬菜业的迅速发展解决了寒冷地区冬季缺乏新鲜蔬菜的问题,然而设施内幼苗易徒长、果实色泽灰暗、味道不鲜、病虫害严重等问题突出。光照不足,特别是缺乏正常光线中紫外光部分是造成这些问题的重要原因。……
