福建林业科技
福建林業科技
복건임업과기
Journal of Fujian Forestry Science and Technology
2015年
3期
40-44
,共5页
青冈%无性系%磷%分配特征
青岡%無性繫%燐%分配特徵
청강%무성계%린%분배특정
Cyclobalanopsis glauca%clone%phosphorus%allocation characteristic
利用调查、取样和分析技术对青冈无性系基株叶构件中P元素含量的分配格局进行研究。结果表明:青冈无性系基株上部叶、下部叶及萌生枝叶中P元素含量分别介于0.063%~0.181%、0.050%~0.158%、0.061%~0.082%之间。叶P元素含量上部叶>下部叶>萌生枝叶,但上部叶与下部叶差异不显著,上部叶与萌生枝叶P元素含量差异极显著,下部叶与萌生枝叶之间P元素含量差异显著。无性系基株上部叶与下部叶P元素的季节变化态势基本表现为上升→下降→上升→下降,萌生枝叶P元素基本表现为下降→上升的态势。 P元素含量季节变化明显,春季与其他季节差异极显著。
利用調查、取樣和分析技術對青岡無性繫基株葉構件中P元素含量的分配格跼進行研究。結果錶明:青岡無性繫基株上部葉、下部葉及萌生枝葉中P元素含量分彆介于0.063%~0.181%、0.050%~0.158%、0.061%~0.082%之間。葉P元素含量上部葉>下部葉>萌生枝葉,但上部葉與下部葉差異不顯著,上部葉與萌生枝葉P元素含量差異極顯著,下部葉與萌生枝葉之間P元素含量差異顯著。無性繫基株上部葉與下部葉P元素的季節變化態勢基本錶現為上升→下降→上升→下降,萌生枝葉P元素基本錶現為下降→上升的態勢。 P元素含量季節變化明顯,春季與其他季節差異極顯著。
이용조사、취양화분석기술대청강무성계기주협구건중P원소함량적분배격국진행연구。결과표명:청강무성계기주상부협、하부협급맹생지협중P원소함량분별개우0.063%~0.181%、0.050%~0.158%、0.061%~0.082%지간。협P원소함량상부협>하부협>맹생지협,단상부협여하부협차이불현저,상부협여맹생지협P원소함량차이겁현저,하부협여맹생지협지간P원소함량차이현저。무성계기주상부협여하부협P원소적계절변화태세기본표현위상승→하강→상승→하강,맹생지협P원소기본표현위하강→상승적태세。 P원소함량계절변화명현,춘계여기타계절차이겁현저。
The allocation pattern of nutrient is generally thought to exhibit a simple vegetative state.But few studies have measured the temporal variation and the spatial patterns in Cyclobalanopsis glauca.The allocation pattern of phosphorus ( P ) in leaf of C.glauca genets were studied by investigating, taking samples and analyzing.The leaf P concentrations ranged from 0.063% to 0.181%in the leaves of the upper layer (TUL) and ranged from 0.050%to 0.158% in the leaves of the lower layer(TLL) and ranged from 0.061%to 0.082%in the leaves of the ramets( TLR).And ranked in the order of TUL>TLL>TLR.The leaf P con-centrations in TUL was higher slightly than that in TLL,but no significant difference were detected.But the leaf P concentrations in TLR differed remarkably from that in TUL at P<0.01 and differed from that in TLL at 0.01<P<0.05.Generally,the amplitude of the P concentrations was higher in TLL than in TUL in the ortets.The seasonal dynamics of the leaf P concentrations was similar in TUL and in TLL and that increased in spring,then decreased gradually,and then increased in autumn and decreased slightly in win-ter,but that in TLR was different,decreased continuous and increased in winter.Within the growth period,the leaf P concentrations differ significantly among the months,specifically between the April and the others.