Genomic-SSR and EST-SSR were used to calculate the genetic distance(GD) in different materials. The mean GD value of EST-SSR for the 18 wheat genotypes is 0.3996,which is lower than that of genomic-SSR (0.5458).
The nitrogen fertilization could greatly increase zinc concentration and uptake to all of wheat genotypes tested,and they increased by 7.6%,22.9% averagely,respectively,but the iron concentration decreased 6.4% and the iron uptake increased by 7.2%;
To study the factors affecting VA mycorrhizal dependency (MD) and mechanism involved, three wheat genotypes with high (H), middle (M) and low (L) phosphorus efficiencies were inoculated with or without Glomus mosseae or Glomus versiforme at two phosphorus application level of w (P 2O 5) 20 mg/kg and 60 mg/kg.
The plasmid pDB1 with gus-bar as double marker gene,and the plamsid pARN6、pBAB3、pYAO24 with RC24 gene encoding rice basic chitinase were co-transferred to immature embryos of 8 wheat genotypes in combination of pDB1+pARN6,pDB1+pBAB3 or pYAO24 via particle bombardment. pYAO24 has nptⅡ as selective gene. Transgenic plants were regenerated after selective culture.
The experiment was conducted to optimize the sowing time and seed dosage of different super wheat genotypes with three genotypes of the large ear cultivars(01-35,8355),the middle ear cultivars(62008,4133-2) and the many ears cultivars(988044,02-48).
In this research,the effect of osmotic stress(-0.975 MPa) on the coleoptile and radicle growth was studied with 17 drought resistant wheat genotypes at germination stage,and several physiological and biochemical indices were analyzed.
There existed some differences for concentration and uptake of zinc and iron among varied wheat genotypes,the largest three genotypes for uptake amount of zinc and iron were Mianyang 31,Shanyou 225 and Shanyou 253.
Protein composition and native state of pigments of thylakoid membrane of wheat genotypes differently tolerant to water stress
Steady-state levels of the core antenna of PS II (CP47 and CP43) and light-harvesting Chl a/b-apoproteins (LHC) II in the 29.5-24 kD region remained more or less unchanged in both wheat genotypes.
Analysis of its primary structure showed that the difference between L-16(1) and the parental wheat genotypes may be related to a mutation that had occurred during the development of the alloplasmic line at the binding site of an arbitrary primer.
Genetic analysis of ten common wheat genotypes using testers carrying genes Pan1, Pc1 and Pc2 showed that these genotypes contained Pan1 and Pc2 genes.
Hardening of all wheat genotypes tested resulted in the accumulation of thermostable cold-regulated (COR) polypeptides with mol wts of 209, 196, 169, 66, 50, and 41 kD.