TY  - REP
AU  - Castrignano,A.M.
AU  - Losavio,N.
AU  - Mastrorilli,M.
AU  - Venezian,E.
ED  - Improving Winter Cereals for Moisture-limiting Areas. Capri (Italy). 27-31 Oct 1985
TI  - Modelling stomatal conductance in the identification of physiological traits for drought resistance. Chapter 20
SN  - 0-471-91650-1
U1  - 94-097607 
PY  - 1987///
KW  - Chemicophysical properties
KW  - Crops
KW  - AGROVOC
KW  - Earth
KW  - Epidermis
KW  - Gramineae
KW  - Miscellaneous plant disorders
KW  - Plant anatomy
KW  - Plant ecology
KW  - Plant physiology
KW  - Plant physiology and biochemistry
KW  - Plant tissues
KW  - Plant vegetative organs
KW  - Resistance to injurious factors
KW  - Soil water balance
KW  - Water
KW  - Water balance
KW  - Triticum
N1  - 1 tables; 6 fig. 11 ref. Summary (En)
N2  - A model calibration on the basis of the data from both stressed and irrigated durum wheat was carried out using a proposed model that utilizes the response of stomatal conductance (Ks) to net radiation (Rn), vapour pressure deficit of the atmosphere (VPD), and leaf water potential. The calculated parameter values appeared to be higher in well-watered plants for (1) the maximum of Ks under non-limiting light conditions and the rate of reaching this maximum and (2) the minimum threshold of leaf water potential for the beginning of stomatal opening. Lower values in stressed plants for these parameters: (1) rate of stomata closing at the increasing VPD and (2) rate of stomatal response to increasing leaf water potential were observed. Some speculations on the possibility of utilizing the values of the considered physiological traits in breeding for drought resistance are discussed
T2  - Srivastava, J.P.; Acevedo,-E.; Varma,-S. (ICARDA, Aleppo (Syria)); Porceddu,-E. (University of Tuscia, Viterbo (Italy). Inst. of Agricultural Biology) (eds.). National Research Council of Italy, Viterbo (Italy); International Center for Agricultural Research in the Dry Areas, Aleppo (Syria). Drought tolerance in winter cereals: proceedings of an international workshop. Chichester (United Kingdom). John Wiley and Sons. 1987. p. 255-262
ER  -