Banana industry plays important roles in the economics of southern China, where is always blown by typhoon in summer and autumn. After typhoon passed through, fresh banana seedlings are often required. That is a probl...Banana industry plays important roles in the economics of southern China, where is always blown by typhoon in summer and autumn. After typhoon passed through, fresh banana seedlings are often required. That is a problem for companies on culturing banana seedling, since culturing banana seedlings takes about four months and typhoon cannot be predicted so early. If the growth of banana seedlings can be slowed down and the seedlings can be cultured in nursery shed for more time, this problem will be solved. In this research, seven treatments (paclobutrazol, diniconazole, paclobutrazol + brassins, paclobutrazol + diethyl aminoethyl hexanoate, diniconazole + brassins, diniconazole + diethyl aminoethyl hexanoate, chlormequat chloride) were performed on banana seedlings and the growth was measured. Results showed that in all of the treatments, the values of plant height, leaf length, pseudostem diameters, root length, root weight, root volume, fresh weight of above-ground tissues and fresh weight of seedlings were significantly less than those corresponding values of control. The reducing powers of roots of seedlings sprayed with paclobutrazol and paclobutrazol + diethyl aminoethyl hexanoate were remarkably higher than those of seedlings treated with water. Total chlorophyll content in leaves of seedlings sprayed with paclobutrazol was remarkably higher than that of seedlings treated with water. Total chlorophyll contents in leaves of seedlings treated with paclobutrazol + diethyl aminoethyl hexanoate and chlormequat chloride were lower than those of control. For delaying the growth of banana seedlings, chlormequat chloride was the best among the seven treatments. The mechanism might be that the enzyme CPP-synthase in seedlings was inhibited by chlormequat chloride.展开更多
以多效唑、烯效唑、化控11号和12号4种植物生长延缓剂对“抢手股”草地早熟禾(P oa p ra tensis)的生长特性进行田间试验观测,对草坪外观品质进行综合评价。结果表明:4种延缓剂的各浓度处理对草地早熟禾的生长都有不同程度的抑制作用,...以多效唑、烯效唑、化控11号和12号4种植物生长延缓剂对“抢手股”草地早熟禾(P oa p ra tensis)的生长特性进行田间试验观测,对草坪外观品质进行综合评价。结果表明:4种延缓剂的各浓度处理对草地早熟禾的生长都有不同程度的抑制作用,并可加深其叶色;对4种延缓剂作用下的外观品质进行的评价表明,以多效唑50.0和100.0 m g/m2、烯效唑20.0和40.0 m g/m2和化控12号0.25 m l/m2作用下的草坪外观品质最好。展开更多
文摘Banana industry plays important roles in the economics of southern China, where is always blown by typhoon in summer and autumn. After typhoon passed through, fresh banana seedlings are often required. That is a problem for companies on culturing banana seedling, since culturing banana seedlings takes about four months and typhoon cannot be predicted so early. If the growth of banana seedlings can be slowed down and the seedlings can be cultured in nursery shed for more time, this problem will be solved. In this research, seven treatments (paclobutrazol, diniconazole, paclobutrazol + brassins, paclobutrazol + diethyl aminoethyl hexanoate, diniconazole + brassins, diniconazole + diethyl aminoethyl hexanoate, chlormequat chloride) were performed on banana seedlings and the growth was measured. Results showed that in all of the treatments, the values of plant height, leaf length, pseudostem diameters, root length, root weight, root volume, fresh weight of above-ground tissues and fresh weight of seedlings were significantly less than those corresponding values of control. The reducing powers of roots of seedlings sprayed with paclobutrazol and paclobutrazol + diethyl aminoethyl hexanoate were remarkably higher than those of seedlings treated with water. Total chlorophyll content in leaves of seedlings sprayed with paclobutrazol was remarkably higher than that of seedlings treated with water. Total chlorophyll contents in leaves of seedlings treated with paclobutrazol + diethyl aminoethyl hexanoate and chlormequat chloride were lower than those of control. For delaying the growth of banana seedlings, chlormequat chloride was the best among the seven treatments. The mechanism might be that the enzyme CPP-synthase in seedlings was inhibited by chlormequat chloride.
文摘以多效唑、烯效唑、化控11号和12号4种植物生长延缓剂对“抢手股”草地早熟禾(P oa p ra tensis)的生长特性进行田间试验观测,对草坪外观品质进行综合评价。结果表明:4种延缓剂的各浓度处理对草地早熟禾的生长都有不同程度的抑制作用,并可加深其叶色;对4种延缓剂作用下的外观品质进行的评价表明,以多效唑50.0和100.0 m g/m2、烯效唑20.0和40.0 m g/m2和化控12号0.25 m l/m2作用下的草坪外观品质最好。
