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以西瓜嫁接苗为试材,采用叶面喷施的方式,研究了矮壮素、比久、多效唑、宇花灵3号等4种不同浓度植物生长调节剂处理对西瓜嫁接苗形态指标、叶柄生长及叶绿素含量的影响。结果表明:50、100、150mg/L多效唑处理下,西瓜嫁接苗株高、第1、2节叶片长和宽及地上部干重等显著降低,第1、2节叶柄生长速率显著降低,叶绿素含量显著增大。初步得出多效唑可能是一种可有效调控西瓜嫁接苗株型的植物生长调节剂。
Watermelon grafted seedlings were used as test materials to study the effects of four different concentrations of plant growth regulators, chlormequat, bupivazole, paclobutrazol and Yuhualing 3, on the morphological characteristics of grafted seedlings of watermelon, Growth and Chlorophyll Content. The results showed that under 50, 100 and 150 mg / L paclobutrazol treatment, the grafted seedlings of watermelon were high, the length and width of leaves in the first and second stages and the dry weight of shoots were significantly decreased, the growth rates of petioles in sections 1 and 2 were significantly decreased, Significantly increased content. Paclobutrazol may initially be a plant growth regulator that can effectively control the plant type of grafted watermelon.