草原与草坪
草原與草坪
초원여초평
GRASSLAND AND TURF
2014年
4期
52-55,60
,共5页
杨秉建%朱敏群%黄慧青%陈志锋%杜小姣
楊秉建%硃敏群%黃慧青%陳誌鋒%杜小姣
양병건%주민군%황혜청%진지봉%두소교
叉花草%光照强度%叶片结构%叶绿素
扠花草%光照彊度%葉片結構%葉綠素
차화초%광조강도%협편결구%협록소
Diflugossa colorata%light intensity%leaf structure%chlorophyll
为探讨叉花草的耐荫特性,研究了不同光照强度对其株高、叶面积、叶绿素含量及叶片结构的影响。结果表明,与全光照相比,株高、叶面积和叶绿素含量随遮光度的增加而增加,遮光70%以上使植株变得柔软;叉花草的栅栏组织为1层,海绵组织相对较为发达,在不同遮荫条件下,叶片厚度、栅栏组织和海绵组织均变薄,栅栏组织/海绵组织比值减小;叶片中叶绿素 a/b 随遮光度的增加而减小,表明叉花草适宜在遮光度60%~70%的环境下生长。
為探討扠花草的耐蔭特性,研究瞭不同光照彊度對其株高、葉麵積、葉綠素含量及葉片結構的影響。結果錶明,與全光照相比,株高、葉麵積和葉綠素含量隨遮光度的增加而增加,遮光70%以上使植株變得柔軟;扠花草的柵欄組織為1層,海綿組織相對較為髮達,在不同遮蔭條件下,葉片厚度、柵欄組織和海綿組織均變薄,柵欄組織/海綿組織比值減小;葉片中葉綠素 a/b 隨遮光度的增加而減小,錶明扠花草適宜在遮光度60%~70%的環境下生長。
위탐토차화초적내음특성,연구료불동광조강도대기주고、협면적、협록소함량급협편결구적영향。결과표명,여전광조상비,주고、협면적화협록소함량수차광도적증가이증가,차광70%이상사식주변득유연;차화초적책란조직위1층,해면조직상대교위발체,재불동차음조건하,협편후도、책란조직화해면조직균변박,책란조직/해면조직비치감소;협편중협록소 a/b 수차광도적증가이감소,표명차화초괄의재차광도60%~70%적배경하생장。
In order to investigate the shade trait of Diflugossa colorata .The plant height,leaf area,chloro-phyll content and leaf structure were measured under the different shading.The results showed that,compared with CK,the plant height and leaf area increased with the degree of shading increases,and the plant became soft above shading 70%.The Diflugossa colorata had 1 layer palisade tissue with relatively developed spongy tissue .Under the shading,the leaf,palisade tissue and spongy tissue thickness was smaller than CK,and the ratio of the palisade and spongy tissue became small,while the ratio of Chlorophyll a and chlorophyll b reduced with the increase of shading.The results showed that the Diflugossa colorata can growth under the environment of shading degree 60%~70%.