Screening techniques and sources of tolerance to extremes of moisture and air temperature in cool season food legumes

• Published in: Euphytica Vol. 73; no. 1-2; pp. 73 - 83
• Main Authors: Wery, J. (Institut Nacional de la Recherche Agronomique ENSA, Montpellier (France)), Silim, S.N, Knights, E.J, Malhotra, R.S, Cousin, R
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Dordrecht Springer 01-01-1994
• Subjects: Adaptation to environment and cultivation conditions; Agricultural sciences; Agronomy. Soil science and plant productions; AIR TEMPERATURE; AMELIORATION DES PLANTES; Biological and medical sciences; Cicer arietinum; DROUGHT RESISTANCE; DROUGHT STRESS; ENSAYO; ESTRES DE SEQUIA; FISIOLOGIA VEGETAL; FITOMEJORAMIENTO; FROST; Fundamental and applied biological sciences. Psychology; GEL; Genetics and breeding of economic plants; HELADA; HUMEDAD; HUMIDITE; HUMIDITY; LEGUMES; LEGUMINEUSE; LEGUMINOSAS; Lens culinaris; Life Sciences; PHYSIOLOGIE VEGETALE; Pisum sativum; PLANT BREEDING; PLANT PHYSIOLOGY; RESISTANCE A LA SECHERESSE; RESISTENCIA A LA SEQUIA; STRESS DU A LA SECHERESSE; TEMPERATURA DEL AIRE; TEMPERATURE DE L'AIR; TESTAGE; TESTING; Varietal selection. Specialized plant breeding, plant breeding aims; Heat resistance; Cold; Genetic resource; Cold resistance; Artificial selection; Tolerance; Environmental factor; Varietal selection; Review; Food crop; Screening; Heat; Extremum; Leguminosae; Drought resistance; Dicotyledones; Air temperature; Angiospermae; Spermatophyta; Technique; Drought; Air humidity; C3-Type; POIS CHICHE; AMELIORATION DES PLANTES
• ISSN: 0014-2336; 1573-5060
• DOI: 10.1007/BF00027184

Breeding for resistance to extremes of temperature and moisture in cool season food legumes is limited by the lack of adequate screening techniques. The success of each technique depends upon the representativeness and reproducibility of the type of stress created. Descriptions of successful techniques are presented for frost and terminal drought. Development of new screening tests designed to select for specific adaptive traits require a better knowledge of the mechanisms of resistance in these crops, especially to drought. Rooting depth, early vigor, reduced branching, and osmotic adjustment are discussed. Other mechanisms of resistance to drought, heat, freezing, or chilling have been proposed but need to be studied jointly by crop physiologists and plant breeders.