The Study Of Relieve Dormancy And Germination Of Zanthoxylum Dissitum Hemsl. Seeds

Zanthoxylum Dissitum Hemsl, which has high medicinal value in Traditional Chinese medicine, and named it one-sided needle, study the mechanism of seed dormancy, dormancy and germination explore its solution method is significant because of its low natural reproduction rate.In this paper, experimental study of the Zanthoxylum Dissitum Hemsl seed dormancy;And tried a variety of solutions targeted dormancy method; Zanthoxylum Dissitum Hemsl in dormancy and germination of seeds of different solutions were measured during the course of the seed-related physiological and biochemical indicators to explore their dormant dormant key reconciliation factor provides a theoretical basis. The results are as follows: 1 The Origin of Zanthoxylum Dissitum Hemsl s. seeds dormancyIn the germination tentative with seed hulls removed, the seeds cannot germinate still, we can believe that Zanthoxylum Dissitum Hemsl. seeds’embryos have dormancy. We can find it that all of the parts of Zanthoxylum Dissitum Hemsl. seed have some germination inhibitors through the tentative that use the water extracts and methanol extracts of different parts of the seeds add to Rape seeds’seedbed, which inhibit the effects of the strongest oil outside the hulls, the hull species followed, endosperm showed that low concentration for promote high concentration for suppression. 2 Ways of Relieve the dormancy of Zanthoxylum Dissitum Hemsl. seedsUsed a variety of methods to relieve the dormancy of Zanthoxylum Dissitum Hemsl. seeds, such as sand stratification at different temperatures wet, soak the GA solution etc., and combined with some primed ways to relieve dormancy. It founds that with a variable temperature(4℃/25℃)Laminated is the best,40 days or so have started to germinate; dressingwithmoistpeatat25 ℃ under the best conditions for germination, germination rate of68%aftertreatmentThe first seven days will begin to grow. 3 Artificial germination Conditions of Zanthoxylum Dissitum Hemsl seedsDuring the tentative of wet sand at different temperature stratification process, physiological and biochemical indexes tracking the seeds inside were determined. In the early stratification due to poor permeability of the seed coat, seed absorption and less oxygen storage material in seeds hydrolyzed starch, protein, fat and other slower, much reduced compared with the control content; activity also at very low level. Post-stratification stratification over time, strengthen the seed coat permeability, adequate air and water, seed respiration gradually strengthened, physiological anabolic become increasingly strong, to accelerate the reduction of the content of the storage material; sharp rise in related activity. Test procedure shows variable temperature stratification can make seed storage substances hydrolysis accelerated metabolic activity increased, promotes cell proliferation, accelerated the growth rate of the embryo, and promote the embryo morphological and physiological maturation, dormancy been lifted, greatly improving the seed artificial germination efficiency of pepper seeds.