Development and yield of the winter wheat variety Martonvasari 4 as affected by the climate of Nitra [Czechoslovakia]

agronomic characters cereales cereals checoslovaquia clima clima templado climat climate condiciones ambientales condition de milieu crops cultivos cultivos de grano czechoslovakia developmental stages economic plants environment environmental conditions environnement etapas de desarrollo etapas de desarrollo de la planta europa europe grain crops medio ambiente plant developmental stages plant production plantas plante plante de culture plants production productividad productivity profitability rendement rendimiento rentabilidad site factors temperate climate trigo trigo de invierno wheats winter wheat yields