Evaluation Of Triticum Turanicum Jakubz. Accessions Based On Agronomic Traits And Storage Proteins

The crop genetic diversity has been eroded in the course of large-scale cultivated for single varieties. Genetic erosion not only limits further improvement of crop' s yield and its ability resistance to environmental stresses, but also narrows the genetic bases. On the other hand, the loss of crop genetic resources, especially in wheat, becomes more and more serious. Wheat genetic resources are the original materials for wheat genetics and breeding research programs. Collection, conservation, evaluation and utilizations are the main works of wheat resources research. Triticum turanicum Jakubz. (2n=28, AABB) is a species with some peculiarities of big kernel, big spike, heat resistance and good firing quality, which are potential genetic resources for wheat improvement. In this study, the agronomic traits and storage proteins of T.turanicum accessions from different countries were investigated. The main results were described as following:1. Higher genetic variations were observed on the agronomic traits of T.turanicum accessions. The plant height varied from 97.0 to 155.0cm. The spikes per plant ranged from 2.2 to 27.4. The spike length ranged from 8.8 to 18.0cm. The spikelet number per spike were from 20.0 to 31.0. The grains per spike varied from 23.5 to 77.7. The 1000-grains were 16.5 to 38.5g. The grains weight per spike ranged from 0.43 to 2.41g. The grain length varied from 0.91 to 1.13cm, and the spike density were 1.3 to 3.3.2. The partial correlation coefficients among agronomic traits of T.turanicum accessions were analyzed. The 1000-grain weight was significantly positive correlated with plant height whereas nagtive correlated with grains per spike, indicating that T.turanicum...