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以锦屏藤为试材,采用土壤和水中扦插的方法,研究了正插和倒插对插条重量及幼苗生长动态特征的影响。结果表明:以土壤为基质时,正插繁殖的幼苗生长较快,较早进入萌芽和抽枝阶段,藤条长度和叶片数均高于倒插(P<0.01);而成活率无明显差异。水插时,正插和倒插的插条在重量变化上相似(R=0.995,P<0.01),能够较好地吸收水分。锦屏藤正插和倒插在水插生根动态上表现出明显差异,正插在多数情况下根长和生根数指标优于倒插,且在部分阶段藤条长度更长(P<0.01);但最终在萌芽和生根的植株比例上并未表现出明显差异,形态学上端的芽在2种扦插方式中都容易萌发。生根部位上,正插插条在节、截面和皮孔处均能生根,倒插插条生根主要在节上,而在插条上端产生气生根。锦屏藤具有很强的倒插成活能力,但正插的幼苗生根能力更强且藤条长势更好;节在倒插成活中起着关键作用。
Using Jinping rattan as test material, we used the method of soil and water cuttings to study the influence of positive and negative interpolation on dynamic weight of seedling and seedling growth. The results showed that when the soil was taken as the substrate, the seedlings were inserted into the sprouting and shoot-cutting stages earlier than the others, and the length and the number of the leaves were all higher than those of the inverted insert (P <0.01), while the survival rate was no significant difference . At water insertion, the inserted and inverted inserts were similar in weight change (R = 0.995, P <0.01) and were able to absorb moisture well. The results showed that the root length and number of roots were superior to that of the inverted insert in most cases, and the length of rattan was longer in some stages (P <0.01). But eventually did not show any obvious difference in the proportion of plants that emerged and rooted. The shoots at the top of morphology were easy to germinate in two kinds of cutting methods. Rooting site, is inserted in the section of the cuttings, cross-section and lenticels can take root, inverted insert cuttings rooted mainly in the festival, and in the top of the cuttings to produce aerial roots. Jinping rattan has a strong ability of inverted insertion, but the inserted seedling is more capable of rooting and the rattan grows better. The node plays a key role in the process of inverted insertion.