亚热带农业研究
亞熱帶農業研究
아열대농업연구
SUBTROPICAL AGRICULTURE RESEARCH
2011年
4期
225-229
,共5页
沈琼桃%黄云鹏%范繁荣%吴承祯%黄贤松
瀋瓊桃%黃雲鵬%範繁榮%吳承禎%黃賢鬆
침경도%황운붕%범번영%오승정%황현송
无患子%个体分化%生物量%优树选择
無患子%箇體分化%生物量%優樹選擇
무환자%개체분화%생물량%우수선택
Sapindus mukorossi%individual differentiation%biomass%excellent saplings choice
无患子幼龄林林分存在显著的个体分化,变异程度表现为:冠幅〉地茎〉株高〉枝条,且各表型性状间存在显著的相关性;植株总生物量构成为:根生物量占26.00%、茎生物量占68.32%、叶生物量占5.67%;通过逐步回归,建立了无患子植株总生物量与地径、株高、冠幅的回归模型为:y=612.2606+91.6329x1-72.88x2-87.1238x3,相关系数r=0.9825,说明以无患子的地径、株高以及冠幅为选择因子开展个体生物量评价,可以实现以总生物量为最终目标的评价与选择效果。
無患子幼齡林林分存在顯著的箇體分化,變異程度錶現為:冠幅〉地莖〉株高〉枝條,且各錶型性狀間存在顯著的相關性;植株總生物量構成為:根生物量佔26.00%、莖生物量佔68.32%、葉生物量佔5.67%;通過逐步迴歸,建立瞭無患子植株總生物量與地徑、株高、冠幅的迴歸模型為:y=612.2606+91.6329x1-72.88x2-87.1238x3,相關繫數r=0.9825,說明以無患子的地徑、株高以及冠幅為選擇因子開展箇體生物量評價,可以實現以總生物量為最終目標的評價與選擇效果。
무환자유령림림분존재현저적개체분화,변이정도표현위:관폭〉지경〉주고〉지조,차각표형성상간존재현저적상관성;식주총생물량구성위:근생물량점26.00%、경생물량점68.32%、협생물량점5.67%;통과축보회귀,건립료무환자식주총생물량여지경、주고、관폭적회귀모형위:y=612.2606+91.6329x1-72.88x2-87.1238x3,상관계수r=0.9825,설명이무환자적지경、주고이급관폭위선택인자개전개체생물량평개,가이실현이총생물량위최종목표적평개여선택효과。
Among the young forest of Sapindus mukorossi Gaertn,there is significant individual variation,and the differentiation degree is canopy widthsground diameter plant heightbranch number.Among phenotypes,there exists significant correlation.The plant total biomass consists of the root biomass accounting for 26.00%,stem biomass accounting for 68.32%,and leaf biomass accounting for 5.67%,and stem is the main harvest part of biomass.Through stepwise regression,the regression model of S.mukorossi Gaertn's total biomass to ground diameter,plant height and canopy widths has been set up,the regression model is: y=612.2606+91.6329x1-72.88x2-87.1238x3.The correlation coefficient r is 0.9825,which illustrates that conducting individual biomass evaluation by the selective factors of S.mukorossi Gaertn's canopy widths,ground diameter and plant height can realize the effect of evaluation and selection through the final goal of total biomass.