Seedling characteristics in hydroponic culture and field performance of maize genotypes with different resistance to root lodging [Zea mays L. - USA]

agronomic characters allettamento caratteri agronomici climatic factors colture idroponiche crop yield culture hydroponique encamado eua facteur climatique fattori climatici field experimentation genotipi genotipos genotypes hybridation hybridization hydroponics ibridazione inbred lines linee consanguinee lodging plantule racine radici rendement des cultures rendimiento de cultivos resistance to injurious factors resistenza ai fattori dannosi roots seedlings usa verse zea mays