Results 261 to 270 of about 5,620,404 (287)

Interspecific interactions alter root length density, root diameter and specific root length in jujube/wheat agroforestry systems

Agroforestry Systems, 2014
A field study was conducted at Hetian, southern Xinjiang, northwest China, to investigate root morphology as affected by interspecific interactions between jujube (Ziziphus jujuba Mill.) and wheat (Triticum aestivum L.). The treatments comprised (1) sole wheat, (2) 3-, 5- and 7-year-old sole jujube trees, and (3) intercropping of wheat/3-, 5- and 7 ...
B. J. Wang, W. Zhang, P. Ahanbieke, Y. W. Gan, W. L. Xu, L. H. Li, P. Christie, L. Li   +7 more
openaire   +1 more source

Root Traits Are Multidimensional: Specific Root Length Is Independent From Root Tissue Density and the Plant Economic Spectrum [PDF]

Journal of Ecology, 2016
Summary Root, stem and leaf traits are thought to be functionally coordinated to maximize the efficiency of acquiring and using limited resources. However, evidence is mixed for consistent whole‐plant trait coordination among woody plants, and we lack a clear understanding of the adaptive value of root traits along soil resource gradients.
Robin David Smissen, Peter Bellingham, Sarah Richardson   +2 more
exaly   +2 more sources

Length densities, occupancies and weights of apple root systems

Plant and Soil, 1993
The root systems of apple trees from five orchards ranging in age from 1.5-y to 14-y were sampled to depths of between one and two metres using soil cores. Although trees came from orchards which differed in soil-type, tree spacings and management, consistent patterns were found in root systems. In orchards of 4-y and older, roots of adjacent trees met
K. A. Hughes, P. W. Gandar
openaire   +1 more source

Geometrical properties of simulated maize root systems: consequences for length density and intersection density

Plant and Soil, 1998
The spatial distribution of root length density (RLD) is important because it affects water and nutrient uptake. It is difficult to obtain reliable estimates of RLD because root systems are very variable and heterogeneous. We identified systematic trends, clustering, and anisotropy as geometrical properties of root systems, and studied their ...
Grabarnik, P., Pagès, Loic, L., Glyn Bengough, A.   +2 more
openaire   +2 more sources

Estimating sugarcane root length density through root mapping and orientation modelling

Plant and Soil, 2008
Root length density (RLD) is a key factor in crop functioning. A field method was developed to quantify RLD of sugarcane from root intersection density (RID) taking root orientations into account. RIDs were observed on three perpendicular soil planes and RLD was measured for the enclosed volume.
Chopart, Jean-Louis, Rodrigues, Silvia Rosa, Carvalho de Azevedo, Mateus, De Conti Medina, Cristiane   +3 more
openaire   +2 more sources

[Distribution patterns of Fraxinus mandshurica root biomass, specific root length and root length density].

Ying yong sheng tai xue bao = The journal of applied ecology, 2006
Employing soil core method, an investigation in Maoershan Experiment Station was made on the root biomass, specific root length (SRL), and root length density (RLD) of Fraxinus mandshurica plantation (17 yr) within a growth season in stand level. The results showed that the total root biomass was 1,637 g x m(-2), in which, living biomass accounted for ...
Li, Mei, Zhengquan, Wang, Youzhi, Han, Jiacun, Gu, Xiangrong, Wang, Yunhuan, Cheng, Xiu-juan, Zhang   +6 more
openaire   +1 more source

Seasonal dynamics of fine root biomass, root length density, specific root length, and soil resource availability in a Larix gmelinii plantation

Frontiers of Biology in China, 2006
Fine root turnover is a major pathway for carbon and nutrient cycling in terrestrial ecosystems and is most likely sensitive to many global change factors. Despite the importance of fine root turnover in plant C allocation and nutrient cycling dynamics and the tremendous research efforts in the past, our understanding of it remains limited.
Yunhuan Cheng, Youzhi Han, Qingcheng Wang, Zhengquan Wang   +3 more
openaire   +1 more source

Sorghum root length density and the potential for avoiding striga parasitism

Plant and Soil, 1990
Striga hermonthica is a serious root parasite of sorghum in the semiarid tropics. Successful parasitism is dependent on interactions of Striga seeds and host roots. Several sorghum cultivars have been found which resist parasitism. The basis of resistance is not well known.
O. Cherif-Ari, T. L. Housley, G. Ejeta
openaire   +1 more source

Estimating Root Length Density by the Core‐Break Method

Soil Science Society of America Journal, 1989
Abstract Rapid and accurate methods of measuring root length density (RLD, cm root cm −3 soil) are needed for verifying growth predictions and assessing genotypic differences.
openaire   +1 more source

Estimating Root Length Densities Around Transplanted Container-Grown Plants

Arboriculture & Urban Forestry, 1983
A simple method is described for measuring root length densities and is applied to the study of root distributions around transplanted container-grown plants. Roots were separated from core samples using a soil elutriation system and counted using Tennant's line intersect method.
David Barnett, J.L. Paul, R.W. Harris, D.W. Henderson   +3 more
openaire   +1 more source