Growth traits of semi-sib families of Pinus elliottii were studied.The results showed that there were extremely significant differences between the P.elliottii families in terms of tree height,DBH and volume( P < 0...Growth traits of semi-sib families of Pinus elliottii were studied.The results showed that there were extremely significant differences between the P.elliottii families in terms of tree height,DBH and volume( P < 0.01),and the families could be selected effectively.Both family heritability and single plant heritability of growth traits of P.elliottii were high.The family heritability of tree height,DBH and volume was 0.799,0.779 and 0.770 respectively,and their single plant heritability was 0.683,0.829 and 0.742 respectively.Among them,the family heritability of tree height was the highest,while the single plant heritability of DBH was the highest.The Duncan analysis of growth traits of the P.elliottii families revealed that families 12,7,15,4 and 6 were superior families and can be used as high-yield families.展开更多
The seedling height and ground diameter of 42 half-sib families of biennial Cyclobalanopsis glauca were investigated and compared. The results showed that there were extremely significant differences between different...The seedling height and ground diameter of 42 half-sib families of biennial Cyclobalanopsis glauca were investigated and compared. The results showed that there were extremely significant differences between different families in the terms of seedling height and ground diameter. According to the seedling height and ground diameter, families 39, 27, 28 and 19 of C. glauca were superior to other families at the seedling stage.展开更多
Monthly changes in the resin yield of semi-sib families of Pinus elliottii during 2013-2015 were studied.The results showed that from April to October,the resin yield of the P.elliottii families was the lowest in Apri...Monthly changes in the resin yield of semi-sib families of Pinus elliottii during 2013-2015 were studied.The results showed that from April to October,the resin yield of the P.elliottii families was the lowest in April and the highest in July.There were significant differences between various families in terms of resin yield.The change of resin yield was closely related to temperature,and the higher the temperature was,the higher the resin yield was.P.elliottii mainly produced resin from June to September.展开更多
In order to solve the problem of rapid propagation of Sapindus mukorossi Gaertn seedlings, research on the cutting propagation of S. mukorossi Gaertn was conducted. The results showed that the rooting rate of cuttings...In order to solve the problem of rapid propagation of Sapindus mukorossi Gaertn seedlings, research on the cutting propagation of S. mukorossi Gaertn was conducted. The results showed that the rooting rate of cuttings of the ten clones ranged from 30.9% to 83.0%. Among them, the rooting rate of cuttings of clones SM01 and SM06 was higher than that of other clones, and there were significant differences between different clones in the rooting rate of cuttings. The rooting rate of the semi-lignified shoots having two leaves could be improved significantly. The treatment of the cuttings by GGR6 solutions had significant effects on their rooting rate.展开更多
基金Supported by National Key Research and Development Plan(2017YFD0600502)Forestry Science and Technology Planning Project of Hunan Province,China(XLK201307-2)
文摘Growth traits of semi-sib families of Pinus elliottii were studied.The results showed that there were extremely significant differences between the P.elliottii families in terms of tree height,DBH and volume( P < 0.01),and the families could be selected effectively.Both family heritability and single plant heritability of growth traits of P.elliottii were high.The family heritability of tree height,DBH and volume was 0.799,0.779 and 0.770 respectively,and their single plant heritability was 0.683,0.829 and 0.742 respectively.Among them,the family heritability of tree height was the highest,while the single plant heritability of DBH was the highest.The Duncan analysis of growth traits of the P.elliottii families revealed that families 12,7,15,4 and 6 were superior families and can be used as high-yield families.
基金Supported by Special Scientific Research Project for Forestry Public Welfare Industry(201504301)
文摘The seedling height and ground diameter of 42 half-sib families of biennial Cyclobalanopsis glauca were investigated and compared. The results showed that there were extremely significant differences between different families in the terms of seedling height and ground diameter. According to the seedling height and ground diameter, families 39, 27, 28 and 19 of C. glauca were superior to other families at the seedling stage.
基金Supported by National Key Research and Development Plan(2017YFD0600502)Forestry Science and Technology Planning Project of Hunan Province,China(XLK201307-2)
文摘Monthly changes in the resin yield of semi-sib families of Pinus elliottii during 2013-2015 were studied.The results showed that from April to October,the resin yield of the P.elliottii families was the lowest in April and the highest in July.There were significant differences between various families in terms of resin yield.The change of resin yield was closely related to temperature,and the higher the temperature was,the higher the resin yield was.P.elliottii mainly produced resin from June to September.
基金Supported by Forestry Science and Technology Planning Project of Hunan Province,China(XLK201511)
文摘In order to solve the problem of rapid propagation of Sapindus mukorossi Gaertn seedlings, research on the cutting propagation of S. mukorossi Gaertn was conducted. The results showed that the rooting rate of cuttings of the ten clones ranged from 30.9% to 83.0%. Among them, the rooting rate of cuttings of clones SM01 and SM06 was higher than that of other clones, and there were significant differences between different clones in the rooting rate of cuttings. The rooting rate of the semi-lignified shoots having two leaves could be improved significantly. The treatment of the cuttings by GGR6 solutions had significant effects on their rooting rate.
