当前位置: 首页 > 文章 > 8种热带牧草的耐荫生理参数比较 热带农业科学 2007,27 (5) 15-20
Position: Home > Articles > Comparisons of Shade Tolerance Parameters of 8 Tropical Grasses Chinese Journal of Tropical Agriculture 2007,27 (5) 15-20

8种热带牧草的耐荫生理参数比较

作  者:
安锋;王真辉;陈志权;虞道耿;白昌军
单  位:
中国热带农业科学院热带作物品种资源研究所;中国热带农业科学院橡胶研究所
关键词:
热带牧草;光合-光响应曲线;叶绿素;耐荫性
摘  要:
为寻找合适于热带橡胶树等人工林下种植的耐荫牧草,于2005年选取热研11号黑籽雀稗(Paspalumatratum Swallen cv.Reyan No.11)、热研2号柱花草[Stylosanthes guianensis(Aublet)Swartz cv.Reyan No.2]、热研8号坚尼草(Panicum maximum Jacquin cv.Reyan No.8)、热研4号王草[Pennisetum purpureum Schumacher×P.glaucum(Linnaeus)R.Brown cv.Reyan No.4]、热研14号网脉臂形草[Brachiaria dictyoneura(Figari et de Notaris)Stapf cv.Reyan No.14]、热研15号刚果臂形草(Brachiaria ruziziensis Germain et Evrard cv.Reyan No.15)、热研12号平托落花生(Arachis pintoi Krapovickas et Gregory cv.Reyan No.12)和太空辐射育种柱花草[Stylosanthesguianensis(Aublet)Swartz cv.Amarillo]等8种热带牧草为研究对象,测定、分析了它们的叶片光合-光响应特性、叶色素含量及其与耐荫性关系。结果表明,8种牧草品种的光补偿点、表观量子效率、光饱和点、最大光合速率、暗呼吸速率、叶绿素a、叶绿素b及叶绿素总量含量均存在显著差异。综合各生理参数比较结果和生产实践经验,认为8种牧草中,热研14号网脉臂形草、热研8号坚尼草、热研12号平托落花生和热研2号柱花草较适合在具有一定荫蔽的橡胶树等热带林下种植。热研4号王草则兼有耐荫植物和喜光植物的光能利用特点,值得进一步研究、利用。
译  名:
Comparisons of Shade Tolerance Parameters of 8 Tropical Grasses
作  者:
AN Feng1) WANG Zhenhui1) CHEN Zhiquan2) YU Daogeng2) BAI Changjun2)(1 Rubber Research Institute,CATAS,Danzhou,Hainan 571737;2 Tropical Crops Genetic Resources Institute,CATAS,Danzhou,Hainan 571737)
关键词:
tropical herbage;Photosynthesis-1ight response;chlorophyll;shade tolerance
摘  要:
Characteristics of photosynthesis response to light,and the leaf content of chlorophyll in 8 tropical grasses were measured to analyze the shade tolerance capability.These grasses included Paspalum atratum Swallen cv.Reyan No.11,Stylosanthes guianensis(Aublet) Swartz cv.Reyan No.2,Panicum maximum Jacquin cv.Reyan No.8,Pennisetum purpureum Schumacher×P.glaucum(Linnaeus) R.Brown cv.Reyan No.4,Brachiaria dictyoneura(Figari et de Notaris) Stapf cv.Reyan No.14,Brachiaria ruziziensis Germain et Evrard cv.Reyan No.15,Arachis pintoi Krapovickas et Gregory cv.Reyan No.12 and Stylosanthes guianensis(Aublet) Swartz cv.Amarillo.The objective of this study was to seek shade tolerant grasses which can be grown in tree plantations such as rubber plantations in tropical China.The results indicated that there was a significant difference in light compensation point,apparent quanta efficiency,light saturation point,maximum photosynthetic rate,dark respiration rate,chlorophyll-a,chlorophyll-b and chlorophyll-a+b.According to these results and our field experiences,B.dictyoneura cv.Reyan No.14,P.maximum cv.Reyan No.8,A.pintoi cv.Reyan No.12 and S.guianensis cv.Reyan No.2,are recommended to plant in the forest plantations like rubber plantation.More research should be done to exploit the light utilization characteristic of P.purpureum×P.typhoidum cv.Reyan No.4 for its wide adaptation to light.

相似文章

计量
文章访问数: 12
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊