Search Results

You are looking at 131 - 140 of 7,020 items for :

  • Refine by Access: All x
Clear All
Free access

Daniel S. Egel, Ray Martyn, and Chris Gunter

, 2007 ). It is not known how development (vine growth and root structure) and yield are affected by today's practices compared with direct seeding on nonfumigated bare ground. Although one study of triploid watermelon root systems found no aberrant

Full access

Haishan An, Jiajia Meng, Fangjie Xu, Shuang Jiang, Xiaoqing Wang, Chunhui Shi, Boqiang Zhou, Jun Luo, and Xueying Zhang

plants, increase plant uniformity, and shorten the juvenile phase ( Debnath, 2007 ; Nag et al., 2001 ). Because blueberry has a shallow root architecture, its cultivation requires sustainable environmental conditions such as pH, soil moisture, and

Free access

Julie Guckenberger Price, Amy N. Wright, Kenneth M. Tilt, and Robert L. Boyd

Survival of a newly transplanted tree or shrub is dependent on the development of a root system that extends into surrounding native soil. Until this occurs, the plant must rely on the water and nutrients in the transplanted container substrate

Free access

Gerardo H. Nunez, Hilda Patricia Rodríguez-Armenta, Rebecca L. Darnell, and James W. Olmstead

Root growth and RSA are affected by edaphic and genetic factors. Soil characteristics such as mechanical impedance, moisture content, and nutrient availability can affect the size of the root system ( Gioia et al., 2015 ; Hund et al., 2009 ; Jin

Full access

Valdinar Ferreira Melo, Edvan Alves Chagas, Raphael Henrique da Silva Siqueira, Olisson Mesquita de Souza, Luís Felipe Paes de Almeida, Diogo Francisco Rossoni, Pollyana Cardoso Chagas, and Carlos Abanto-Rodríguez

the development of agronomic techniques is needed for camu-camu adaptation in upland conditions. The study of root distribution in the soil profile, with regard to depth and horizontal distance from the trunk, contributes to soil depth preparation

Free access

Catherine A. Neal

efficient use of land and labor, more control of the growing environment, and extended planting and harvesting seasons. Plants are easier to handle and ship, more attractive at retail outlets, and easy to transplant. The entire root system is transplanted

Free access

D. M. Glenn and W. V. Welker

Carbon dioxide is produced by microbial and plant respiration and accumulates in the soil. In previous field studies, CO2 levels were higher under a killed sod soil management system, relative to cultivation and herbicide systems (1.8 vs 0.8 and 1.0%), respectively. Our objective in these studies was to measure the effect of elevated levels of root system CO2 on root and shoot growth and nutrient uptake. Using soil and hydroponic systems in greenhouse studies, we maintained root system CO2 levels between 1.5 and 2.5%. Control CO2 levels were less than 1%. Root length density and dry matter partitioning to the root system were increased by root CO2 in soil and hydroponic studies; shoot growth was unaffected. In hydroponic culture, root CO2 increased P uptake, solution pH, root volume and the number of lateral roots/cm root axis. Elevated levels of CO2 in the root system stimulated root growth in both the soil and hydroponic studies.

Full access

Efstathia Exadaktylou, Thomas Thomidis, Brian Grout, George Zakynthinos, and Constantinos Tsipouridis

little or no special equipment during rooting, which can be readily performed in commercial nurseries. Previous work has demonstrated the propagation of ‘Gisela 5’ cherry rootstock from leaf, greenwood, and soft cuttings ( Stefancic et al., 2006 ; Trobec

Full access

K.D. Cox, H. Scherm, and N. Serman

Fruit and Tree Nut Research Laboratory) for providing peach root material; and Clint Truman and Ricky Fletcher (USDA-ARS Southeast Watershed Research Laboratory) for useful discussions and help with preliminary GPR runs.

Free access

Pilar Andreu, Arancha Arbeloa, Pilar Lorente, and Juan A. Marín

whole plants, can yield results more quickly, which would shorten the selection processes. In vitro root cultures either attached to or detached from plants have previously shown a certain correlation to whole organism salt stress tolerance ( Prakash and