Influence of shading on net photosynthetic and transpiration rates, stomatal diffusive resistance, nitrate reductase and biomass productivity of a woody legume tree species (Erythrina variegata Lam.)

1989 ◽  
Vol 99 (6) ◽  
pp. 539-546
Author(s):  
K Muthuchelian ◽  
Kailash Paliwal ◽  
A Gnanam
Keyword(s):  
Nitrate Reductase ◽  
Tree Species ◽  
Biomass Productivity ◽  
Legume Tree ◽  
Erythrina Variegata ◽  
Diffusive Resistance ◽  
Woody Legume

scholarly journals A fractal root model applied for estimating the root biomass and architecture in two tropical legume tree species

2004 ◽  
Vol 61 (4) ◽  
pp. 337-345 ◽  
Author(s):  
Eduardo Salas ◽  
Harry Ozier-Lafontaine ◽  
Pekka Nygren
Keyword(s):  
Tree Species ◽  
Root Biomass ◽  
Legume Tree ◽  
Tropical Legume ◽  
Root Model

scholarly journals Effects of different nitrogen sources on growth, chlorophyll concentration, nitrate reductase activity and carbon and nitrogen distribution in Araucaria angustifolia

2008 ◽  
Vol 20 (4) ◽  
pp. 295-303 ◽  
Author(s):  
Mário L. Garbin ◽  
Lúcia R. Dillenburg
Keyword(s):  
Nitrate Reductase ◽  
Tree Species ◽  
Nitrate Reductase Activity ◽  
Reductase Activity ◽  
Temperate Climate ◽  
Growth Media ◽  
Araucaria Angustifolia ◽  
Inorganic N ◽  
N Source ◽  
Young Leaves

The southern Brazilian highland plateau is a mosaic of two contrasting plant communities, Araucaria forests and grasslands, which differ in the relative abundances and spatial patterns of soil nitrate and ammonium. However, we still do not know the inorganic N preferences of one key species in this mosaic, Araucaria angustifolia, the dominant tree species in the Araucaria forests and an important tree species invading the adjacent grasslands. Growth responses measured in a greenhouse study demonstrated that the species prefers NH4+ over NO3- as an inorganic N source. When provided alone, NO3- induced N deficiency symptoms: increases in root: shoot ratio, root branching and leaf mass per area, thickening of the shoot apexes and decreased mass-based chlorophyll and N concentrations of the young leaves. Nitrate-based nutrition also affected the whole plant N and carbon (C) distribution: young leaves accumulated less N and showed a larger C:N ratio than mature leaves. The nitrate reductase activity (NRA) followed the pattern of root: shoot partitioning expected for temperate climate conifers (activity concentrated in roots). However, the presence of NRA even under sole NH4+ nutrition indicates that plants may show constitutive levels of the enzyme, or that low levels of NO3- (possibly formed by contamination of the growth media) can induce leaf NRA. We suggest that A. angustifolia has ammonium as a preferential inorganic N source, and that this preference may favor a more successful establishment in grassland than in forest areas.

The Determination of Nitrate Reductase Activity of Leaves to the Dominant Species in Forest Community of Northern Aspect of Changbai Mountains

2011 ◽  
Vol 183-185 ◽  
pp. 900-904
Author(s):  
Yu Wen Li ◽  
Yun Jie Wu
Keyword(s):  
Nitrate Reductase ◽  
Tree Species ◽  
Reductase Activity ◽  
Forest Community ◽  
High Yield ◽  
Changbai Mountains ◽  
Ecological Situation ◽  
Nr Activity

This paper addresses the application of improvement in vivo of traditional method for determination of nitrate reductase (NR) activity of leaves to dominant tree species in forest community of northern aspect of Changbai Mountains. It describes the NR activity of tree species related to the shade-endurance and shows that the intolerance tree species has higher NR activity. The NR of a species is also related to the ecological situation of the sites. Tree species with higher NR activities should be selected for breeding of fast growing and high yield tree species.

Nodulation Status and Nitrogenase Activity of Some Legume Tree Species in Bangladesh

2001 ◽  
Vol 3 (1) ◽  
pp. 325-335 ◽  
Author(s):  
Uma K. Aryal ◽  
M. K. Hossain ◽  
Md. Amin U. Mridha ◽  
Hui-Lian Xu
Keyword(s):  
Tree Species ◽  
Nitrogenase Activity ◽  
Legume Tree ◽  
Nodulation Status

New nodulating legume tree species from Guinea-Bissau, West Africa

1989 ◽  
Vol 29 (4) ◽  
pp. 311-314 ◽  
Author(s):  
Johan Wester ◽  
Peter Högberg
Keyword(s):  
West Africa ◽  
Tree Species ◽  
Legume Tree ◽  
Guinea Bissau
Sign in / Sign up

Export Citation Format

Share Document