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
[目的]探讨4个德国鸢尾(Iris germanica L.)新品种组培苗移栽技术。[方法]以新筛选的4个德国鸢尾新品种"白与蓝"、"黄与白"、"白天鹅"和"惊险"的组培苗为试验材料,通过移栽试验研究了组培苗移...[目的]探讨4个德国鸢尾(Iris germanica L.)新品种组培苗移栽技术。[方法]以新筛选的4个德国鸢尾新品种"白与蓝"、"黄与白"、"白天鹅"和"惊险"的组培苗为试验材料,通过移栽试验研究了组培苗移栽成活率的影响因素。[结果]炼苗时间的长短对4个鸢尾新品种的组培苗移栽成活率没有明显影响;而不同的移栽基质对其影响较大,筛选出的最佳移栽基质为园土∶草炭(V∶V)=1∶1。[结论]该研究可为今后的鸢尾工厂化繁殖种苗提供理论依据。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[目的]探讨4个德国鸢尾(Iris germanica L.)新品种组培苗移栽技术。[方法]以新筛选的4个德国鸢尾新品种"白与蓝"、"黄与白"、"白天鹅"和"惊险"的组培苗为试验材料,通过移栽试验研究了组培苗移栽成活率的影响因素。[结果]炼苗时间的长短对4个鸢尾新品种的组培苗移栽成活率没有明显影响;而不同的移栽基质对其影响较大,筛选出的最佳移栽基质为园土∶草炭(V∶V)=1∶1。[结论]该研究可为今后的鸢尾工厂化繁殖种苗提供理论依据。
