不同管护措施对绢毛匍匐委陵菜开花特性的影响

发布时间：2018-11-10 23:16

【摘要】：作为一种新型的缀花地被植物,绢毛匍匐委陵菜具有普通草坪地被抗逆性强、覆盖速度快、整体生态性强、适应范围广的优点和外观质量优美之外,在整个的生长期都有斑驳黄花相缀,较其他地被植物来说,景观丰富性更高一个层次,在园林景观绿化、美化方面具有很广阔的前景。本试验以驯化的野生绢毛匍匐委陵菜作为材料,在高温时间阶段采用物理修剪、激素处理、肥料处理不同处理方式对其花期、开花数、节点数、节点分支数、花径、花柄长度、叶柄长度、匍匐茎长度、叶绿素含量等进行深入研究,为绢毛匍匐委陵菜在实际应用中提供了一定的实践和理论依据。试验结果表明：1.物理修剪能够促进绢毛匍匐委陵菜的开花、改善花柄和叶柄长度,对于整体观赏和平整度有明显的影响。经过修剪的委陵菜的花期提前效果比较明显,比不修剪的的委陵菜花期提前了一周时间。在开花数等方面则体现出一定的差异。其中2/3修剪在高峰期比1/3修剪的累计开花数要多20朵/m2。花柄长度和叶柄长度经过修剪都比较一致。颜色方面差异性不明显。2.GA3在50 mg-kg-1; 100 mg-kg-1; 150 mg-kg-1三个浓度梯度处理下对于绢毛匍匐委陵菜的开花花期影响效果不明显,但是在开花数、叶柄和花柄长度上的影响效果上比较明显。50 mg-kg-1;农度处理的委陵菜在7月初到8月中旬近6周的时间里,开花数和花径大小都明显高于其他的几个处理;并且节点数也有一定优势；50 mg-kg-1浓度对于节点分支数和叶绿素含量也有着高于其他处理的效果;100 mg·kg-1浓度的GA3处理的委陵菜的叶柄和花柄长度是比其他三个处理的长度增长的效果明显。3.不同肥料配比试验在绢毛匍匐委陵菜花期提前方面表现不明显,而对于其他各种性状上则表现出不同的差异,不同配比N、P、K的肥料对于委陵菜的整体外观质量、开花、颜色等都有着不同的影响。其中开花数最多的配比为N1P1K2;在花柄长度和花径大小方面表现比较优异的配比是N2P0K2；节点分支数比较多的配比是N2P1K2：在叶色表现方面N2POK2配比的处理叶绿素含量最为丰富。至于其他表现方面则表现的不明显。
[Abstract]:As a new type of flowered ground cover plant, potentilla sericola has the advantages of strong resistance to stress, fast covering speed, strong overall ecology, wide range of adaptation and beautiful appearance. There are mottled yellow flowers in the whole growing period. Compared with other cover plants, the landscape richness is higher and has a broad prospect in landscape greening and beautification. In this experiment, potentilla sericola was used as a material, which was treated with physical pruning, hormone treatment and fertilizer treatment at high temperature. The flowering period, flowering number, node branch number, flower diameter and flower stalk length were determined by different treatments, such as flowering date, flowering number, node branch number, flower diameter and flower stalk length. The length of petiole, stolon length and chlorophyll content were studied in order to provide some practical and theoretical basis for the practical application of Potentilla sericina. The results show that: 1. Physical pruning can promote the flowering of Potentilla sericeous, improve the length of flower stalk and petiole, and have obvious influence on the whole ornamental and flatness. The flowering time of pruned Potentilla was more obvious than that of unpruned Potentilla. There are some differences in the number of flowers. Two thirds pruned 20 more flowers / m 2 than 1 / 3 pruning during the peak period. The length of the petiole and the petiole are pruned. There is no significant difference in color. 2.GA3 is 50 mg-kg-1; 100 mg-kg-1; The effect of 150 mg-kg-1 concentration gradient on flowering period of Potentilla sericina was not obvious, but the effect on flowering number, petiole and stalk length was obvious. 50 mg-kg-1;. In the period of nearly 6 weeks from the beginning of July to the middle of August, the flowering number and flower diameter of potentilla treated with agricultural degree were obviously higher than those of other treatments, and the number of nodes also had some advantages. The effect of 50 mg-kg-1 concentration on node branch number and chlorophyll content was also higher than that of other treatments. The length of petiole and flower stalk of potentilla treated with 100 mg kg-1 GA3 was significantly increased than that of the other three treatments. The effect of different fertilizer ratios on the anthesis of Potentilla sericina was not obvious, but for the other characters, it was different. The fertilizer with different ratio of Nu Pu K had a good effect on the overall appearance quality and flowering of Potentilla. Color and so on all have different influence. Among them, N1P1K2 had the most flowering number, N2P0K2 was the best proportion in length and diameter of flower stalk, N2P1K2 had more node branches, and the chlorophyll content of N2POK2 was the most abundant in leaf color. As for other aspects of performance, the performance is not obvious.
【学位授予单位】：山西农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S688.4

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