NaCl Coercion To Pugionium Gaertn. Plant Seedling Different Vegetal Period Physiology Foundation Influence

Our country's western area has the big area saline and alkali land, the use pickling land and the development salt water irrigation agriculture, is west our country the agricultural development subject. Along with industrial pollution's aggravation, the chemical fertilizer use is improper, the irrigation area increases and so on questions, makes the soil salinification question to increase day by day. The protectorate awning indoor soil environment condition is airtight, the rainfall flushing, causes the salting of soil, thus also has the very strong soil salinification problem in the installation horticulture cultivation. Pugionium Gaertn. the plant main growth in our country western desert region, is the important wild vegetables which grows in our country western desert region, and the sand mustard has the vegetable with, for medicinal purposes, to raise with the windproof solid sand and so on many kinds of functions, therefore the plant conducts the cultivation research to Pugionium Gaertn.using the pickling land and the salt water irrigation, has and the profound significance to the western desert region's ecological environment. Therefore this research by P. cornutum(L.)Gaertn and P.dolabratum Maxim the material, has studied the NaCl coercion to Pugionium Gaertn. the plant seedling physiology foundation influence, obtains the following result:1 NaCl coercion, different vegetal period P. cornutum(L.)Gaertn and P.dolabratum Maxim sand mustard seedling highly, the blade length, upside lower part the fresh weight and the place the fresh weight receives suppresses, moreover this kind of inhibitory action has the density dependence. When with the density is the 100mmol/LNaCl solution treatment, greatly sometimes P. cornutum(L.)Gaertn and P.dolabratum Maxim sand mustard seedling's growth condition and the comparison compare the influence not also to promote, to show that P. cornutum(L.)Gaertn and P.dolabratum Maxim sand mustard seedling has the adjustment, the adaptation and buffer capacity to the NaCl coercion; But afterward along with NaCl density increase, coercion serious influence P. cornutum(L.)Gaertn and P.dolabratum Maxim sand mustard seedling normal growth.2 densities in the 500mmol/LNaCl solution's scope, along with NaCl density's increase, different vegetal period P. cornutum(L.)Gaertn and P.dolabratum Maxim sand mustard seedling leaf blade cell membrane relative penetrability, the MDA content, the proline content increase gradually; The change tendency which after SOD, CAT, the POD activeness assumes rises, to fall first; The leaf blade relative water content, the chlorophyll content, increase along with the NaCl density drop.The above result indicated: P. cornutum(L.)Gaertn and P.dolabratum Maxim sand mustard adult plant seedling has certainly certainly bears the salty ability, can become the saline and alkali land production and the salt water irrigation ecology vegetables. Through studies Pugionium Gaertn.the plant seedling to the NaCl coercion reply mechanism, plant's saline and alkali land cultivation and the salty salty water irrigation provides the theory basis for Sha Jieshu, simultaneously for cultivates Pugionium Gaertn.on the salinified land the plant to provide the theory instruction artificially, realizes the western agricultural sustainable development.