Introducing And Provenance Trial Of Pinus Sibirica

Pinus sibirica is a well-known forest species of Eurasian boreal coniferous forest(taiga), which is excellent both for fruit and material, and relative to Pinus koraiensis. P.sibirica is more resistant to the cold,dry barren,water wet, and adaptability is more wide. Moreover, China has large area of cold temperate forests which have a single species, and natural environmental condition is similar or slightly better than P. sibirica distribution. So it is important to introduce P. sibirica for the rich resources of the region. Since 1991, we have introduced six batches of seeds, including eight provenances, and have conducted provenance trial at Xinlin and Tahe Forestry Bureau of Daxinganling,Zhangguangcai Maoershan Mountain,Changbai Mountain Wangqing Forestry Bureau and Songnen plain area respectively. The results showed that more than twenty years, P. Sibirica has grown normal in Daxinganling,Xiaoxinganling,Changbai Mountain and Songnen plain area, which has been flowering and there was no pest and rodent damaged. It is a successful introduction.P. sibirica growed normal which hasI ntroduced for twenty-one years in Daxinganling area. P. sibirica at Xinlin Forestry Bureau is totality better than P. koraiensis as control which is serious frost damaged, so the introduction of P. sibirica is successful. The height for eighteen of P. sibirica is 168.93% higher than control, and variance analyses show that there are significant variations in most characters of P. sibirica from different provenances. The heritabilities are high. Multiple comparison of all the characters indicates that the Tomsk is the better excellent provenance whose height is 205.39% higher than control, and next is Mongolia provenance whose height is 126.84% higher than control. Analysis of subordinate function indicates that the better provenance is Tomsk and Mongolia provenance. So provenances for the excellent introduction are Tomsk and Mongolia. The growth of the P. sibirica at Tahe Forestry Bureau of Daxinganling indicates that the growth steadily increased year after year and average height,DBH,volume are 394.99 cm,4.48 cm,0.1339 m3 respectively.P. koraiensis is serious frost damaged, and has high mortality. So, test proved that P. sibirica is suitable for introduction to Tahe Forestry Bureau of Daxinganling.We also have introduced P. sibirica to Zhangguangcai Maoershan Mountain. Investigation and analysis of every characters of P. sibirica show that there are significant variations in all the characters, and the heritabilities are high. The growth of some P. sibirica provenances is better than control. Multiple comparison of all the characters indicates that the better provenances are Ulan-Ude,Heiluoke,Irkutsk, the height for eight of which is 4.66%,2.99%,0.68% respectively higher than control. Analysis of subordinate function indicates that the better provenance is Ulan-Ude whose value is 0.922, and the next are...