Effect of the water table management in the morpho-physiological adaptation of two wheat species to waterlogging

Revista Brasileira de Engenharia Agrícola e Ambiental

Pires, Regina Célia de M.¹  Cruciani, Décio E.²  Voltan, Rachel B. Queiroz¹  Sakai, Emílio¹  Calheiros, Rinaldo de O.¹  Arruda, Flávio B.¹ 

[1] Instituto Agronômico, Campinas;ESALQ/USP

关键词: drainage;    management;    hipoxia;    tolerance    INTRODUÇÃO Em terras baixas;    a monocultura é problema mundial (Garrity & Pernito;    1996);    assim;    a cultura do trigo poderia desempenhar papel muito importante como alternativa de sucessão ou rotação ao arroz;    em que o sucesso seria altamente desejável para atender a extensas áreas definitivamente comprometidas pela infestação de plantas invasoras;    em especial capim arroz e arroz vermelho;   

DOI  :  10.1590/S1415-43662000000200011

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

The effect of three different water table managements in the morpho-physiological adaptation to waterlogging of Triticum aestivum, L. and Triticum durum, L., and the relative influence of the main physical and biological interferance factors were studied. The trial was conducted at ESALQ/USP, Piracicaba, SP, under simulated conditions of a natural low land. After introduction of stress adaptation during the vegetative growth stage, while applying progressive times of hipoxics periods, there were observed different requirements and/or extraction capacities of nutrients between the two species; the fertilization on leaves was not enough to avoid nutritional deficiencies in wheat under hipoxia. The water table management used resulted in morpho-physiological adaptations, but not enough to reach adequate biometric parameters of productivity. The water table at a 15 cm depth throughout the crop cycle resulted in better performance.

【 授权许可】

CC BY-NC