四川林业科技
四川林業科技
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JOURNAL OF SICHUAN FORESTRY SCIENCE AND TECHNOLOGY
2012年
2期
1-7
,共7页
何亚平%蒋俊明%费世民%周金星%孙启祥%彭镇华
何亞平%蔣俊明%費世民%週金星%孫啟祥%彭鎮華
하아평%장준명%비세민%주금성%손계상%팽진화
益母草%构型%分支%生物量%血防区
益母草%構型%分支%生物量%血防區
익모초%구형%분지%생물량%혈방구
Leonurus spp.%architecture%branch%biomass%epidemic area of Schistosomiasis prevention
本文研究了仁寿兴林抑螺示范区抑螺植物益母草的生长与结实特性。益母草存在基部优先与顶部优先两种构型,前者适应于肥沃生境,而后者适宜贫瘠生境。埂边生境高度较大(1.6 vs 0.95),分支数量较大(一级枝8.5vs 6.6;二级枝32.6 vs 9.7;三级枝:0.7 vs 0),分支率较高(4.7 vs 2.3),瘠薄的间作生境明显较低。两种生境中,个体高度与一级枝无关,而与二级枝数量呈现明显抛物线曲线关系。不同位置或节点枝径、间距长度、结实数量都呈现直线或曲线关系,表明位置效应明显,益母草呈现向基性发育模式。深入分析发现,益母草生殖枝结构性参数,如枝径、节间长度都与结实数量呈现明显的线性关系,暗示这种位置效应实质上是结构大小引起的,归为结构限制。随着个体生长,益母草枝干、根系、花果、叶片生物量增长速度依次降低,暗示培育目标实现可能需要优化构型特征。总体分析,益母草通过构型优化(如分支率)来适应异质性生境,而构件生殖存在结构依赖性。
本文研究瞭仁壽興林抑螺示範區抑螺植物益母草的生長與結實特性。益母草存在基部優先與頂部優先兩種構型,前者適應于肥沃生境,而後者適宜貧瘠生境。埂邊生境高度較大(1.6 vs 0.95),分支數量較大(一級枝8.5vs 6.6;二級枝32.6 vs 9.7;三級枝:0.7 vs 0),分支率較高(4.7 vs 2.3),瘠薄的間作生境明顯較低。兩種生境中,箇體高度與一級枝無關,而與二級枝數量呈現明顯拋物線麯線關繫。不同位置或節點枝徑、間距長度、結實數量都呈現直線或麯線關繫,錶明位置效應明顯,益母草呈現嚮基性髮育模式。深入分析髮現,益母草生殖枝結構性參數,如枝徑、節間長度都與結實數量呈現明顯的線性關繫,暗示這種位置效應實質上是結構大小引起的,歸為結構限製。隨著箇體生長,益母草枝榦、根繫、花果、葉片生物量增長速度依次降低,暗示培育目標實現可能需要優化構型特徵。總體分析,益母草通過構型優化(如分支率)來適應異質性生境,而構件生殖存在結構依賴性。
본문연구료인수흥림억라시범구억라식물익모초적생장여결실특성。익모초존재기부우선여정부우선량충구형,전자괄응우비옥생경,이후자괄의빈척생경。경변생경고도교대(1.6 vs 0.95),분지수량교대(일급지8.5vs 6.6;이급지32.6 vs 9.7;삼급지:0.7 vs 0),분지솔교고(4.7 vs 2.3),척박적간작생경명현교저。량충생경중,개체고도여일급지무관,이여이급지수량정현명현포물선곡선관계。불동위치혹절점지경、간거장도、결실수량도정현직선혹곡선관계,표명위치효응명현,익모초정현향기성발육모식。심입분석발현,익모초생식지결구성삼수,여지경、절간장도도여결실수량정현명현적선성관계,암시저충위치효응실질상시결구대소인기적,귀위결구한제。수착개체생장,익모초지간、근계、화과、협편생물량증장속도의차강저,암시배육목표실현가능수요우화구형특정。총체분석,익모초통과구형우화(여분지솔)래괄응이질성생경,이구건생식존재결구의뢰성。
In this paper,studies were made of the growth and fruit feature of Leonurus spp.,a snail control species planted in the Snail Control Afforestation pilot area of Renshou County.Leonurus spp.had two types of architecture:acrotony and basitony,the former adapted to the fertile habitat and the latter to the poor.There were greater height(1.6 vs 0.95),more branches(the first branch:8.5 vs 6.6;the second:32.6 vs 9.7;the third:0.7 vs 0),taller bifurcation ratio(4.7 vs 2.3) of Leonurus individuals in the ridges between fields than in the poor intercrop stand.In the two habitats,individual height was not related to branches of the first class and had a significant relation to the amount of the second class branches with a paullic curve.The branch diameter,inter-node length,and fruiting amount in different position or nodes all showed an obvious relation of paullic curve,indicating a significant position effect and with a develop pattern of baisitony in Leonurus spp.planted in this site.After analyzis,it was found that the architecture parameters of reproductive branches as diameter near node and inter-node length both had an obvious linear relationship with the fruit amount of this node,implying that this position effect was brought about by the architecture size,and attributed to the architecture limitation.With the individual growth,the calculated ratio for biomass of branch stem,root,fruits and leaves took a decreasing order,implying that the accomplishment of the cultivation aim could require the optimal architecture feature.On the whole,the growth of Leonurus individuals adapted to the heterogeneous habitat through the bifurcation ratio,and its modular reproduction had a dependency of architecture.