几种常见花卉在真空条件下对溴甲烷耐药性的研究

本试验选择了19种常见的草本和木本花卉进行了在真空条件下对溴甲烷的耐药性试验.结果表明,美女樱、天门冬、孔雀草、彩叶草、鸡冠花、含羞草、茉莉、栀子等均表现出对溴甲烷具有良好的耐药性,而月季、万寿菊、矮牵牛、小菊花、榕树、玉树、杜鹃等则表现出轻度的药害症状,对千日红、地肤、小丽花、一串红等的品质和生长有很大的影响,表现为强烈的药害,甚至造成死亡.在熏蒸剂量和熏蒸时间一致时,随着真空度的提高,对试验花卉的药害逐步加重.

Tolerance of some flowers against methyl bromide after vacuum fumigation

Kinds of methods are adopted to kill flower pests in order to prevent their spread along with the transportation of flowers. 19 familiar flowers are selected to test their tolerance against methyl bromide after vacuum fumigation. The results show Verbena hybnida, Asparagus sprengeri, Tagetes patula, Coleus blumei, Celosia argentea L. var. cristata, Mimosa pudica, Jasminum sambac and Gardenia jasminoides are able to endure the strong damage of methyl bromide after vacuum fumigation. Rosa chinensis, Tagetes erecta, Petunia hybrida, Dendronthema morifolium, Ficus microcarpa, Portulacaria afra and Rhododendron simsii show slight chemical damage by methyl bromide. The quality and growth of Gomphrena globosa, Kochia scoparia, Dahlia pinnata and Salvia spleendens are strongly influenced by methyl bromide after vacuum fumigation, and even to make the death of flowers. If the same dosage of methyl bromide and fumigation time is kept, the chemical damage of flowers will be got stronger after vacuum condition was improved.