CO flux in a wheat-soybean succession in subtropical Brazil: A carbon sink.

The subtropical region of Brazil is home to 33% of the soybean [Glycine max (L.) Merr.] growing area and 90% of the wheat (Tritucum aestivum L.

Soybean Plant Metabolism under Water Deficit and Xenobiotic and Antioxidant Agent Application.

The aim was to evaluate the interactive effects on biochemistry and physiology of soybean plants exposed to simultaneous xenobiotic and water deficit stresses, and the possible attenuation of plant damage by an antioxidant agent. Soybean plants were submitted to eight different soil water potentials, in two experiments (first experiment: -0.96, -0.

Representativeness of Scholander chamber measurements as a function of time after leaf removal.

The objectives of the study were to determine the maximum tolerable period between leaf removal from a plant and the determination of leaf water potential (Ψ ), and to evaluate different ways of packing leaves after their removal from a plant (LR). Two experiments (Exp) were conducted in a randomized complete block design with four replicates, using bean, maize, and soybean crops. The predawn leaf water potential (Ψ ) (Exp1) and the minimum leaf water potential (Ψ ) (Exp1 and Exp2) were determined.