), and effective formulations are those that prevent excessive water loss without reducing CO 2 uptake. Reflective materials such as kaolin clay and chitosan can reduce absorption of radiant energy (heat), lowering leaf temperatures and reducing
, lowered vertical growth rate, leaf texture, and freedom from insects and disease damage. The lowest level (1 point) indicated bad turf quality, light-green turf, and bare soil. The highest level (9 points) indicated excellent quality, dark-green turf, and
drought-sensitive physiological processes due to the reduction in turgor pressure ( Cosgrove, 2000 ). Carr (2013) stated that leaf production virtually ceased at leaf water potentials more negative than −2.0 MPa in passionfruit ( Passiflora edulis
reduction in leaf expansion further reduces leaf area and transpirational water loss. These adjustments aid in acclimating the plant to prolonged periods of water stress. Loveys (1984) was one of the first to suggest that a xylem-located “signal
from the data set, applied irrigation volumes increased quadratically with the Θ set point ( P = 0.0041; R 2 = 0.83; range, 3.8 to 29.8 L). Fig. 3. ( A ) Water use efficiency (WUE a = leaf, stem, and flower dry weight at harvest ÷ total
-water treatment, which were allowed to deplete soil water until visible water stress symptoms, wilting, or leaf curling, were evident in at least half of the individual plants within the stress treatment. At this point, all plants within that species were
evapotranspiration (ETc). Each point represents one leaf in an individual plant. Tifton, GA, Spring 2003. The reduced gas exchange variables at 67% ETc and below compared with higher irrigation rates in this study suggests that bell pepper plants were affected by
combination on relative water content (RWC), leaf water potential (Ψ w ), leaf osmotic potential (Ψ π ), and leaf turgor (Ψ p ) potential of mini-watermelon plants grown in 2006. Discussion Agronomical responses. It is well
Remote monitoring of leaf turgor pressure of grapevines subjected to different irrigation treatments using the leaf patch clamp pressure probe Aust. J. Grape Wine Res. 16 405 412 Saha, U.K. Papadopoulos, A.P. Hao, X. Khosla, S. 2008 Irrigation strategies
leaves through the transpiration stream ( Taiz and Zeiger, 2010 ). When ABA reaches guard cells, it binds to ABA receptors that activate an ion efflux, which reduces turgor pressure in the guard cells. Due to loss of turgidity, the guard cells become