Identification And Genetic Diversity Analysis Of Triticale Introduced From CIMMYT

Triticale is a new man-made species by hybridization between tritium and secale and doubling of crossbreed chromosomes. It is an important germplasm resource improving in wheat genetics.The analysis and identification of agronomic traits, cytologic characteristics, and genetic diversity of seed storage protein of 183 triticale materials introduced from CIMMYT were carried out preliminarily. The results are summarized as follows.1. The results of analysis of agronomic traits of 183 triticale materials introduced newly showed that the majority of these triticale materials can adapt to the local climate and environment, with good growth and strong resistance to disease, of which, the plants of the 35th series of triticales are short, and the seeds are satiation; the plants of the 12th series of triticales are high and easy to lodge, with big spikes and many grains but thin grains. The variation of agronomic traits of these triticale materials is great, with the plants height ranging from 80cm to 130cm, the numbers of the spikelet per spike changing from 16 to 37, grains per spike varying from 13.05g to 53.89g. Overall characteristics of some materials are outstanding, such as 35th14 and 12th62 etc.The plant of these materials is relatively short; the grains per spike and the weight of a thousand grains are relatively high.For example the height of 35th14 is 80cm; spikelets per spike are 25; grains per spike are 100; the weight of a thousand grains is 47.12g.All of these are important germplasm resources.2. The results of analysis of chromosome configurations of amphidiploid at PMCMI and identification of the number of chromosome of root tip cell from thirty materials taken out randomly showed that the number of...