Genotypic variation in tissue water relations of leaves and roots of black walnut (Juglans nigra) seedlings

1985 ◽  
Vol 64 (1) ◽  
pp. 105-110 ◽  
Author(s):  
W. C. Parker ◽  
S. G. Pallardy
Keyword(s):  
Water Relations ◽  
Genotypic Variation ◽  
Black Walnut ◽  
Juglans Nigra ◽  
Tissue Water ◽  
Leaves And Roots

scholarly journals Nitrogen Recovery from Enhanced Efficiency Fertilizers and Urea in Intensively Managed Black Walnut (Juglans nigra) Plantations

Forests ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 352
Author(s):  
Joshua L. Sloan ◽  
Francis K. Salifu ◽  
Douglass F. Jacobs
Keyword(s):  
Black Walnut ◽  
Juglans Nigra ◽  
Water Soluble ◽  
Growth And Yield ◽  
N Recovery ◽  
Competing Vegetation ◽  
Fertilizer N Recovery ◽  
Coated Urea ◽  
Intensively Managed ◽  
Polymer Coated Urea

Intensively managed forest plantations often require fertilization to maintain site fertility and to improve growth and yield over successive rotations. We applied urea-based “enhanced-efficiency fertilizers” (EEF) containing 0.5 atom% 15N at a rate of 224 kg N ha−1 to soils under mid-rotation black walnut (Juglans nigra L.) plantations to track the fate of applied 15N within aboveground ecosystem components during the 12-month period after application. Treatments included Agrotain Ultra (urea coated with a urease inhibitor), Arborite EC (urea coated with water-soluble boron and phosphate), Agrium ESN (polymer-coated urea), uncoated urea, and an unfertilized control. Agrotain Ultra and Arborite EC increased N concentrations of competing vegetation within one month after fertilization, while neither Agrium ESN nor uncoated urea had any effect on competing vegetation N concentrations during the experiment. Agrotain Ultra and Arborite EC increased δ15N values in leaves of crop trees above those of controls at one and two months after fertilization, respectively. By contrast, Agrium ESN and uncoated urea had no effect on δ15N values in leaves of crop trees until three months after fertilization. Fertilizer N recovery (FNR) varied among ecosystem components, with competing vegetation acting as a sink for applied nutrients. There were no significant differences in FNR for all the urea-based EEF products compared to uncoated urea. Agrium ESN was the only EEF that exhibited controlled-release activity in this study, with other fertilizers behaving similarly to uncoated urea.

Facing drought in a Mediterranean post-fire community: tissue water relations in species with different life traits

2004 ◽  
Vol 25 (1-2) ◽  
pp. 67-72 ◽  
Author(s):  
Marco Borghetti ◽  
F. Magnani ◽  
A. Fabrizio ◽  
A. Saracino
Keyword(s):  
Water Relations ◽  
Tissue Water ◽  
Life Traits

Vertical Gradients of Water Potential and Tissue Water Relations in Sitka Spruce Trees Measured with the Pressure Chamber

1974 ◽  
Vol 11 (2) ◽  
pp. 637 ◽  
Author(s):  
J. Hellkvist ◽  
G. P. Richards ◽  
P. G. Jarvis
Keyword(s):  
Water Potential ◽  
Water Relations ◽  
Sitka Spruce ◽  
Pressure Chamber ◽  
Tissue Water ◽  
Vertical Gradients

scholarly journals Genotypic variation and selection in Juglans nigra L

1968 ◽  
Author(s):  
Calvin Frederick Bey
Keyword(s):  
Genotypic Variation ◽  
Juglans Nigra ◽  
Variation And Selection

scholarly journals Nitrogen Fertilization of Black Walnut (Juglans nigra L.) During Plantation Establishment. Morphology and Production Efficiency

2013 ◽  
Vol 59 (4) ◽  
pp. 453-463 ◽  
Author(s):  
Rosa C. Goodman ◽  
Juan A. Oliet ◽  
Guillermo Pardillo ◽  
Douglass F. Jacobs
Keyword(s):  
Nitrogen Fertilization ◽  
Production Efficiency ◽  
Black Walnut ◽  
Juglans Nigra ◽  
Plantation Establishment

Variation in the tissue water relations of two sympatric Hawaiian Dubautia species and their natural hybrid

Oecologia ◽  
1984 ◽  
Vol 65 (1) ◽  
pp. 75-81 ◽  
Author(s):  
Robert H. Robichaux
Keyword(s):  
Water Relations ◽  
Natural Hybrid ◽  
Tissue Water

Black Walnut ( Juglans nigra ) Toxicosis

2021 ◽  
pp. 433-436
Keyword(s):  
Black Walnut ◽  
Juglans Nigra

Water Relations in Young Growing Wheat Leaves after Application of (2-Chloroethyl)trimethyl- ammoniumchloride (CCC) to the Roots of Wheat Seedlings

1985 ◽  
Vol 40 (9-10) ◽  
pp. 745-747
Author(s):  
Jutta Bode ◽  
Aloysius Wild
Keyword(s):  
Water Relations ◽  
Reducing Sugars ◽  
Triticum Aestivum L ◽  
Water Deficiency ◽  
Pressure Potential ◽  
Tissue Water ◽  
Wheat Seedlings ◽  
Diffusive Resistance ◽  
Wheat Leaves ◽  
Synthetic Growth

Abstract The influence on the water relations of the third developing leaf of (2-chloroethyl)trimethylammoniumchloride, a synthetic growth regulator, applied to the roots of young wheat plants (Triticum aestivum L.) has been investigated. The tissue water potential and the pressure potential were found to be reduced by several bars in comparison to the untreated controls, whereas the osmotic potential remained unchanged. The content of soluble reducing sugars was considerably increased in the cell sap of CCC-treated leaves. With this accumulation, however, the turgor was not maintained. Additionally, CCC-treated leaves showed considerably lower transpiration rates and higher diffusive resistance than the controls. Thus, the application of CCC to the roots causes alterations in the water relations of developing wheat leaves, which resemble those induced by water deficiency.

Water Relations and Osmotic Adjustment of Leaves and Roots of Lupins in Response to Water Deficits 1

Crop Science ◽  
1987 ◽  
Vol 27 (5) ◽  
pp. 977-983 ◽  
Author(s):  
Neil C. Turner ◽  
Walter R. Stern ◽  
Pedro Evans
Keyword(s):  
Water Relations ◽  
Osmotic Adjustment ◽  
Water Deficits ◽  
Leaves And Roots ◽  
Response To Water
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