Study On The Characteristics Of Development And The Biochemical Foundation Of Adaptive Low Temperature In Pugionium Cornutum(L.)

Pugionium cornutum(L.).Gaertn.belongs to the biennial herbs and the Cruciferae,and Pugionium Gaertn.It has the many sided benefits of this vegetables in the desert for medical use,health care,fodder use,fixing sand.Experiment for eperson's foundation last,studied Pugionium cornutum(L.) different sowing period characteristics and the foundation variety of the biochemical etc as temperature fell. The results indicate:1.it is 7~18d from Sowing seeds to outing seedling,and 59~139d from outing seedling to passing winter,and 189~207d from passing winter to turning green and 60~64d from turning green to bud emerenge,and 2~3d from bud emerenge to flowering,and 46~52d from flowering to mature during 05-01~10-16,it can't pass winter among sowing period 09-01 and 09-16,The total growth period was consisted of nutrient growth period,dormancy period and reproductive growth period,synthesizing plant growth-development and seed yield etc at different sowing.period,so the optimum seeding time of Pugionium cornutum(L.) is 05-01~05-16 in spring.2.The initiate seed was handled at 2,4 and 6℃ low temperature during 15,25 d,and 50~1500μmol·L-1 of 5-azaC,the low temperature of 4℃ +50~1500μmol·L-1of 5-azaC,that Pugionium cornutum(L.) can not bloom after sowing seeds in this year.it was outing seedling in the next year as sowing seeds period is 10-01 and 10-16,not yet blooming,explaining it is not the seed vernalization.it is 2,4 and 6 slices of leafs can not bloom at 15,25 d vernalization,50~300μmol·L-15-azaC and GA3;it is 6~8 slices of leafs in the indoors which can bloom at 20 and 30d as temperature fell,it is 4 slices of leafs which can not bloom and starves at 30 d as temperature fell;Pugionium cornutum(L.) finished vernalized phase by leaf and above 5.8 leaves in this test's condition.3.The trend of the Pro,dissolubility sugar, dissolubility protein,IUFA have go up,the Vc has a lower level after attaining the high peak, and maintain in the higher level as temperature fell;Z, GA3, IAA all contain the trend of descent,the content of ABA maintains in the lower level when it is the big seedling,its trend goes up when it is the small seedling.This research provided the leading and lay the foundation for the work educates and the thorough research in growth,having got the important theories meaning and practicing the value,applying the foreground the amplitude.