نتایج جستجو برای: herbaceous species

تعداد نتایج: 550042  

Journal: :International Journal of Current Microbiology and Applied Sciences 2019

Journal: :Plant physiology 2016
Frederic Lens Catherine Picon-Cochard Chloé E L Delmas Constant Signarbieux Alexandre Buttler Hervé Cochard Steven Jansen Thibaud Chauvin Larissa Chacon Doria Marcelino Del Arco Sylvain Delzon

The water transport pipeline in herbs is assumed to be more vulnerable to drought than in trees due to the formation of frequent embolisms (gas bubbles), which could be removed by the occurrence of root pressure, especially in grasses. Here, we studied hydraulic failure in herbaceous angiosperms by measuring the pressure inducing 50% loss of hydraulic conductance (P50) in stems of 26 species, m...

2012
En-Rong Yan Rubén Milla Lonnie W. Aarssen

Leafing intensity, i.e. the number of leaves per unit of stem volume or mass, is a common developmental correlate of leaf size. However, the ecological significance and the functional implications of variation in leafing intensity, other than its relation to leaf size, are unknown. Here, we explore its relationships with plant height, growth form, leaf size, and leaf habit to test a series of c...

2011
Lauren M. Porensky Kari E. Veblen

Spatial heterogeneity in woody cover affects biodiversity and ecosystem function, and may be particularly influential in savanna ecosystems. Browsing and interactions with herbaceous plants can create and maintain heterogeneity in woody cover, but the relative importance of these drivers remains unclear, especially when considered across multiple edaphic contexts. In African savannas, abandoned...

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