摘要
为筛选适于广西地区生长的丰产性刨花润楠,在广西国有大桂山林场进行了良种选育造林试验,分析了不同种源刨花润楠的年均树高增长量、年均胸径增长量和年均蓄积增长量的差异,并对不同试验地的刨花润楠生长效果进行了综合评价。结果表明:不同试验地的刨花润楠的年均树高增长量、年均胸径增长量和年均蓄积增长量之间存在极其显著差异(P<0.01);广西国有大桂山林场刨花润楠良种的年均树高增长量、年均胸径增长量和年均蓄积增长量较湖南种源对照组分别提高了32.61%、24.86%、69.21%;不同试验地的刨花润楠生长效果的综合得分排序为:试验地2>试验地1>试验地3>对照组。指出了广西国有大桂山林场刨花润楠良种生长效果优于湖南种源,良种选育效果良好;广西国有大桂山林场刨花润楠良种更适于在试验地2及其类似立地条件下生长。
In order to select high-yield Machilus pauhoi Kanenira varieties suitable for growth in the Guangxi region,this study conducted breeding and afforestation experiments at the Guangxi State-owned Dagui Mountain Forest Farm.The aim was to analyze the differences in annual average tree height growth,annual average breast diameter growth,and annual average volume growth among different seed sources of Machilus pauhoi Kanenira.The study also conducted a comprehensive evaluation of the growth performance of Machilus pauhoi Kanenira in different test sites.The results showed significant differences(P<0.01)in the annual average tree height growth,annual average breast diameter growth,and annual average volume growth of Machilus pauhoi Kanenira in different test sites.The average annual tree height growth,annual average breast diameter growth,and annual average volume growth of high-yield Machilus pauhoi Kanenira varieties at the Guangxi State-owned Dagui Mountain Forest Farm increased by 32.61%,24.86%,and 69.21%,respectively,compared to the Hunan seed source control group.The comprehensive scores for the growth performance of Machilus pauhoi Kanenira in different test sites were ranked as follows:Test Site 2>Test Site 1>Test Site 3>Control Group.In summary,the growth performance of high-yield Machilus pauhoi Kanenira varieties at the Guangxi State-owned Dagui Mountain Forest Farm is superior to that of the Hunan seed source,indicating successful breeding efforts.The high-yield Machilus pauhoi Kanenira varieties at the Guangxi State-owned Dagui Mountain Forest Farm are better suited for Test Site 2 and similar site conditions.
作者
李梁华
Li Lianghua(Guangxi State-owned Dagui Mountain Forest Farm,Hezhou,Guangxi 542800,China)
出处
《绿色科技》
2023年第21期88-91,95,共5页
Journal of Green Science and Technology
关键词
刨花润楠
良种选育
造林实验
广西地区
Machilus pauhoi Kanenira
variety breeding
afforestation experiment
Guangxi region
