Primary Selection Of Provenance And Clones Of Populus Ussuriensis Kom And Study On Progeny Mutagenesis

P. ussuriensis Kom are a native tree specie unique to China, the vanguard tree of China's afforestation of barren hills and important timber, pulp wood, bio-energy source. In order to breed the superior provenance with the fast growing, tolerant for the eastern mountain area of Heilongjiang Province, select 10 races by latitude gradient in 2002 from the P. ussuriensis Kom natural distributing zone. Sift 10-20 plus trees for every provenance and propagating on 2004 and plant the experiment forest with 10 excellent provenance and 93 trees in Harbin, Maoershan and Hailin from 2004 to 2007. Investigate and analysis the diameter at breast high and the height for every site annual. In some site use the drought and the disease index, the survival rate, and chlorophyll and soluble protein content of P. ussuriensis Kom leaves. Using these date also analysis that difference with geography. Using colchicines treat floriferous branch for Maoershan, Weihe, Dailing affiliate the test. Analysis the photosynthetic, growing and foliage shape, it show:(1) Growing have the positive relation with chlorophyll and soluble protein content., initially selected for the eastern mountain area of Heilongjiang Province The P. ussuriensis Kom fine seed source for the camp, Shangying Linjiang and Jiangshanjiao.(2) Most provenances show that DBH and height have the positive relation with t the average annual temperature, the temperature in January, July temperature,≥10℃accumulate temperature, frost-free period, with an average annual Precipitation and average annual evaporation, most of these indicators is significant and extreme significant. P.s ussuriensis Kom growth with a variety of sources in longitude, latitude equivalent basically a negative correlation between the performance of the best kind of source is located at the high longitude in the high-latitude areas; initially selected for the eastern mountain area of Heilongjiang Province The P. ussuriensis Kom fine seed source for the camp, Linjiang and Jiangshan Jiao.(3) Through the 10 provenances of P. ussuriensis Kom planting in three test pilots investigate all the diameter at breast height, height and some test plots investigate the index of drought, disease, as well as sources of P. ussuriensis Kom leaf chlorophyll and soluble protein content, and other physiological characteristics, the results show that: the differences of the DBH and height are significant among provenances and clones in different sites. Integrated three pilot sites view: Shanhetun, Linjiang, Jiangshan Jiao provenance in the three pilot sites overall realization of the more outstanding, and they can be used as seed sources Experimental Forest shortlisted excellent provenance.