Effect of snow removal on leaf water potential, soil moisture, leaf and soil nutrient status and leaf peroxidase activity of sugar maple

1994 ◽  
Vol 162 (1) ◽  
pp. 81-88 ◽  
Author(s):  
Christian E. Pilon ◽  
Beno�t C�t� ◽  
James W. Fyles
Keyword(s):  
Soil Moisture ◽  
Water Potential ◽  
Leaf Water Potential ◽  
Peroxidase Activity ◽  
Sugar Maple ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Leaf Water ◽  
Soil Nutrient Status ◽  
Snow Removal

Criteria for Scheduling the Irrigation of wheat

1981 ◽  
Vol 17 (2) ◽  
pp. 157-162 ◽  
Author(s):  
R. D. Misra ◽  
P. C. Pant
Keyword(s):  
Soil Moisture ◽  
Field Experiment ◽  
Water Potential ◽  
Leaf Water Potential ◽  
Sandy Loam ◽  
Leaf Water ◽  
Pan Evaporation ◽  
Loam Soil ◽  
Moisture Conditions ◽  
Better Than

SUMMARYA field experiment evaluating criteria for scheduling wheat irrigation was conducted from 1975 to 1977 in a sandy loam soil with treatments scheduled according to physiological stages, soil moisture conditions, pan evaporation and leaf water potential. Grain and straw yields, spikes/m, fertile spikelets/spike and number and weight of grains/spike were significantly influenced by treatments. Irrigation based on leaf water potential was as good as when based on physiological stages or soil moisture, and the use of pan evaporation was no better than other methods of scheduling.

scholarly journals AN EVALUATION OF DIFFERENT MULCHES USED IN SOIL MOISTURE CONSERVATION OF COCONUT LANDS

CORD ◽  
1998 ◽  
Vol 14 (02) ◽  
pp. 34
Author(s):  
Vidhana Arachchi L P
Keyword(s):  
Soil Moisture ◽  
Water Potential ◽  
Leaf Water Potential ◽  
Bare Soil ◽  
Leaf Water ◽  
Dry Period ◽  
Water Losses ◽  
Different Types ◽  
Ecological Region ◽  
Soil Moisture Status

An investigation on the ability ofdifferent types of mulches to conserve soil moisture and their effect on coconutpalm (Dwarfx Tall; CRIC 65) was carried out in Madampe soil series at Bandirripuwa Estate, Lunuwila located in agro ecological region of IL3 of Sri Lanka. Different types ofmulches compared in this study were dried coconut fronds and leaves, cover crop with Pueraria phasioloides and Brachiaria milliformis versus bare soil (Control). Soil moisture status was monitored using the neutron scattering technique. Leaf water potential of coconut with respect to different treatments was also monitored during dryperiod   Results showed that Brachiaria milliformis and Pueraria phasioloides extracted significantly (p<0.001) more waterfrom soils than diied mulch and the control. The amount of water extracted in the above treatments were 74.4Yo, 62.5Yo, 59.79yo and 61.3% respectively. However, the extraction was not significantly different when the rainfall was greater than 100 mm. About 33 mm of water retained in Brachiaria milliformis introduced soil profiles even by the end of dry period Water losses by Pueraria phasioloides grown plots, specially through evapotranspiration, were 1higher in initial stages of the dry period, but later stage losses were lower than that of Brachiaria due to defoliation of Pueraria leaves during severe dry period Leaf water potential of coconut with respect to stress conditions of different treatments revealed that Pueraria phasioloides and Brachiaria milliformis did not adversely affect coconut palm grown in Madampe series, although those live materials extracted more waterfrom soilprofile compared to the other treatments. In general, dry mulching wasfound to be the most efficient moisture conservative practice that can be adoptedfor coconut lands.

Leaf Water Potential and Peroxidase activity in Quercus cerris and Quercus pubescens after Inoculation with Diplodia mutila

1999 ◽  
Vol 147 (1) ◽  
pp. 55-59
Author(s):  
A. Ragazzi ◽  
S. Moricca ◽  
S. Vagniluca ◽  
C. Comparini ◽  
I. Dellavalle
Keyword(s):  
Water Potential ◽  
Leaf Water Potential ◽  
Peroxidase Activity ◽  
Leaf Water ◽  
Quercus Pubescens ◽  
Quercus Cerris

Plant hydraulics accentuates the effects of atmospheric moisture stress on transpiration

2020 ◽  
Author(s):  
Alexandra Konings ◽  
Yanlan Liu ◽  
Mukesh Kumar ◽  
Xue Feng ◽  
Gabriel Katul
Keyword(s):  
Soil Moisture ◽  
Water Potential ◽  
Leaf Water Potential ◽  
Moisture Stress ◽  
Hydraulic Model ◽  
Leaf Water ◽  
Empirical Approach ◽  
Joint Control ◽  
Atmospheric Moisture ◽  
Plant Hydraulics

&lt;p&gt;Transpiration directly links the water, energy and carbon cycles. It is commonly restricted by soil (through soil moisture) and atmospheric (through vapor pressure deficit, VPD) moisture stresses governed by the movement of water through plants, also known as plant hydraulics. These sources of moisture stress are likely to diverge under climate change, with globally enhanced VPD due to increased air temperatures but more variable and uncertain changes in soil moisture. In most Earth system and land surface models, the ET response to each of the two stresses is evaluated through independent empirical relations, while neglecting plant hydraulics. Comparison of these two models is challenged by the difficulty of ensuring any perceived differences are due to the model structure, not an imperfect parametrization. Here, we use a model-data fusion approach applied to long-term ET records collected at 40 sites across a diverse range of biomes to demonstrate that the widely used empirical approach underestimates ET sensitivity to VPD, but compensates by overestimating the sensitivity to soil moisture stress. The bias originates from the joint control of leaf water potential on plant response to soil moisture and VPD stress. To a lesser degree, it also overestimates from increased sensitivity to VPD under dry (low leaf water potential) conditions in the plant hydraulic model. As a result, a hydraulic model captures ET under high-VPD conditions for wide-ranging soil moisture states better than the empirical approach does. Our findings highlight the central role of plant hydraulics in regulating the increasing importance of atmospheric moisture stress on biosphere-atmosphere interactions under elevated temperatures.&lt;/p&gt;

Maple Decline in Quebec: A Discussion of Possible Causes and the Use of Fertilizers to Limit Damage

1989 ◽  
Vol 65 (4) ◽  
pp. 280-287 ◽  
Author(s):  
A. R. C. Jones ◽  
W. H. Hendershot
Keyword(s):  
Sugar Maple ◽  
Forest Decline ◽  
Effective Means ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
West Germany ◽  
Anthropogenic Sources ◽  
Sudden Increase ◽  
Forest Fertilization ◽  
Soil Nutrient Status

A sudden increase in dieback of sugar maple has been measured in Quebec since 1982, threatening a $40-million industry and the livelihood of more than 10 000 syrup producers. Annual surveys show increasing defoliation, dieback, and mortality of sugar maple as well as damage to other species, including conifers. The heaviest mortality corresponds with locations where severe insect attacks, seasonal climatic extremes, low soil nutrient status and marginal sites for maple and the highest fallouts of wet acid sulfate and nitrate occur. In some areas of West Germany the link between air pollution and forest decline has been established to the satisfaction of most scientists and a program of forest fertilization to counteract the effects of pollution is now underday. Fertilization is an effective means of increasing the health and vigour of maples aiding them in overcoming stresses from natural and anthropogenic sources.

scholarly journals Effect of Period of Soil Moisture Stress at Panicle Initiation and Flowering Stages on Nutrient Uptake and Post-Harvest Soil Nutrient Status in Rice

2020 ◽  
Vol 107 (7-9) ◽  
Author(s):  
Girija Prasad Patnaik ◽  
N. Thavaprakaash ◽  
M. Djanaguiraman ◽  
G. Senthil Kumar
Keyword(s):  
Soil Moisture ◽  
Nutrient Uptake ◽  
Soil Nutrient ◽  
Nutrient Status ◽  
Moisture Stress ◽  
Soil Moisture Stress ◽  
Soil Nutrient Status ◽  
Post Harvest

LEAF WATER POTENTIAL AND CWSI OF SWEET SORGHUM IN RELATION TO THE AVAILABLE SOIL MOISTURE

1993 ◽  
pp. 219-226
Author(s):  
R. Stricevic ◽  
V. Pocuca ◽  
R. Cvetkovic ◽  
N. Jovanovic
Keyword(s):  
Soil Moisture ◽  
Water Potential ◽  
Leaf Water Potential ◽  
Sweet Sorghum ◽  
Leaf Water ◽  
Available Soil Moisture

scholarly journals LEAF WATER POTENTIAL OF THE PURPLE ELEPHANT GRASS, PENNISETUM PURPUREUM SCHUMACH. (POACEAE) AND IT�S RELATIONSHIP WITH SOIL MOISTURE

2018 ◽  
Vol 11 (22) ◽  
pp. 1-7
Author(s):  
Euriel Mill�n-Romero ◽  
Andr�s Mass-Cruz ◽  
Yerye Chajin-Salcedo ◽  
Carlos Mill�n-P�ramo ◽  
◽  
...  
Keyword(s):  
Soil Moisture ◽  
Water Potential ◽  
Leaf Water Potential ◽  
Leaf Water ◽  
Pennisetum Purpureum ◽  
Elephant Grass

scholarly journals Leaf gas exchange in a clonal eucalypt plantation as related to soil moisture, leaf water potential and microclimate variables

Trees ◽  
2000 ◽  
Vol 14 (5) ◽  
pp. 0263 ◽  
Author(s):  
M. S. Mielke ◽  
M. A. Oliva ◽  
N.F. de Barros ◽  
R. M. Penchel ◽  
C. A. Martinez ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Gas Exchange ◽  
Water Potential ◽  
Leaf Water Potential ◽  
Leaf Gas Exchange ◽  
Leaf Water ◽  
Eucalypt Plantation ◽  
Microclimate Variables
Sign in / Sign up

Export Citation Format

Share Document