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A Preliminary Study On The Mechanism Of Cutting And Rooting Lythrum

Posted on:2017-05-30Degree:MasterType:Thesis
Country:ChinaCandidate:Q ZhangFull Text:PDF
GTID:2283330488974879Subject:Landscape
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Lythrum is a kind of excellent ornamental plants, is also a kind of excellent water purification emergent plants, with very high ecological benefit, economic benefit and ’social benefit. The graceful posture, tolerance to cold and drought, tenacious vitality, planting of low cost, simple maintenance management extensive, ecological landscape to highlight the value of. The test to Lythrum salicaria as the research object, in Jiuyuan District, Baotou city nursery, nursery, Dongsheng District, Ordos City test base tests were conducted of Lythrum salicaria softwood cuttings and Rooting Mechanism for a preliminary study, this Lythrum salicaria in Inner Mongolia region, cultivation technology foundation Theoretical basis, and provide a scientific basis.Factors affecting the effects of influence factors of Lythrum salicaria is analyzed and disposed by the 4 factors and 4 levels of softwood cuttings of orthogonal test of Lythrum salicaria Softwood Cutting Propagation Technology of research, through the observation of the growth morphology and records on rooting rate, root length, root dry weight and other indicators of in-depth analysis, data processing, analysis and get the following results:in the orthogonal test on rooting rate, ratio of substrates, rooting powder concentration in panicle length, in ear position of four factors of Lythrum salicaria rooting rate were not significantly different, all test plants rcoting rate was 100%. In the orthogonal test of root length and root dry weight, cuttings site factors> matrix proportion factor> root The ratio of matrix was 7:3, the ratio of matrix was, the top of cuttings and the iength of cuttings was 15cm, and the concentration of rooting powder was the bcst combination of 1000ppm.In of Lythrum salicaria tender Cutting Rooting Process and anatomic study found that Lvthrum salicaria is extremely easy to root, cuttings 3 days that there is a small amount of adventitious root formation, cutting! I natural root rate has reached 100%, and has been fully formed root group. Of Lythrum salicaria root anatomy and analysis, according to Lythrum salicaria adventitious root formation site can be speculated, Lythrum salicaria root type for bark rooting.Analysis of single factor experiment on the cultivation, Lythrum salicaria with furrow planting survival rate of mean that the planting of plastic mulch and bare land in two ways the average survival rate of cultivated, but the difference is not large. Lythrum salicaria Linn in three different planting treatments in seedling high average rate of growth, average increment of leaf area, average increment of crown, root dry weight and chlorophyll content, growth and physiological indexes of the order of influence were consistent. For the first film after planting> bare land planting> furrow planting.
Keywords/Search Tags:Lythrum salicaria Linn, orthogonal test, rooting process, root length, root dry weight
PDF Full Text Request
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