scholarly journals Photosynthetic Performance and its Relationship with Leaf Water Potential in Desmodium gangeticum L. DC. (Shalaparni) Genotypes under Field Conditions

2015 ◽  
Author(s):  
Harshwardhan R. Nandanwar ◽  
P. Manivel ◽  
R. Saravanan ◽  
Sonal Shah ◽  
V. Ravi
Keyword(s):  
Water Potential ◽  
Leaf Water Potential ◽  
Photosynthetic Performance ◽  
Leaf Water ◽  
Field Conditions

Modelling diurnal patterns of leaf water potential in field conditions

1986 ◽  
Vol 33 (2-4) ◽  
pp. 185-203 ◽  
Author(s):  
Nader Katerji ◽  
Marc Hallaire ◽  
Yvette Menoux-Boyer ◽  
Brigitte Durand
Keyword(s):  
Water Potential ◽  
Leaf Water Potential ◽  
Leaf Water ◽  
Field Conditions ◽  
Diurnal Patterns

scholarly journals Behaviour study of "Danlas" grapevines grown under plastic cover

OENO One ◽  
2003 ◽  
Vol 37 (2) ◽  
pp. 117
Author(s):  
Aziz Ezzahouani
Keyword(s):  
Ambient Temperature ◽  
Water Potential ◽  
Leaf Water Potential ◽  
Atlantic Coast ◽  
Canopy Temperature ◽  
Titratable Acidity ◽  
Climatic Conditions ◽  
Leaf Water ◽  
Field Conditions ◽  
Soluble Solids

<p style="text-align: justify;">The aim of this study is to determine the behaviour of ‘Danlas’ grapevines conducted under plastic cover, near atlantic coast, known for its early table grape production. Measurements included climatic conditions, leaf water potential, canopy temperature and production components. The use of plastic cover resulted in an increase of midday ambient temperature and vapor pressure deficit, with a maximum of 5. 7 °C and 1.28 kPa, respectively. Midday canopy temperature under field conditions were lower than ambient temperature by an average of 2.5 °C. The most negative leaf water potential values were recoded for grapevines under plastic cover relatively to field conditions, ranging from –7.2 to –17.0 bars and from –7.0 to –14.0 bars, respectively. Harvest date was advanced by more than one month after the use of plastic cover. Results showed that crop weight, cluster weight and number per vine were not significantly affected. However, the number of berries per cluster was significantly reduced. Plastic cover promoted fruit quality, berry weight and soluble solids concentration were increased by 2.23 g and 1.0 °Brix, respectively. While titratable acidity was decreased by 1.20 g/l.</p>

Use of a Hydraulic Press for Estimation of Leaf Water Potential in Grain Sorghum 1

1986 ◽  
Vol 78 (4) ◽  
pp. 749-751 ◽  
Author(s):  
S. K. Hicks ◽  
R. J. Lascano ◽  
C. W. Wendt ◽  
A. B. Onken
Keyword(s):  
Water Potential ◽  
Leaf Water Potential ◽  
Grain Sorghum ◽  
Hydraulic Press ◽  
Leaf Water
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