Sistemas de cultivo sobre as características agronômicas e qualidade fisiológica das sementes de soja
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Data
2015-12-08
Autores
Lima, Maurício Apolônio de
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Universidade Federal de Mato Grosso
Resumo
The productivity, seed physiological quality and the disease
management in soybeans are highly influenced by the production environment.
Therefore, the main objective is to measure the effect of seeding systems and the
soil preparation on the agronomic characteristics of soybeans, the seed physiological
quality and the Asian rust development. The experiment was developed in the
experimental area of the Agrarian Sciences and Technologies Institute at Federal
University of Mato Grosso State. The experimental design was randomly blocking,
arranged in 3x3 lines, corresponded to soil management and seeding systems, with
four repetitions. The soil management used was the conventional, reduced tillage
and no-till system and the seeding form were dense seeding, conventional and in
crossed lines. The variables analyzed were: severity and the number of postulates
per cm2 of the Asian rust; plant height at flowering, maturation and first pod insertion;
Chlorophyll rate; plant lodging; number of pods per plant and number of seeds per
pods; seed size; the weight of a thousand seeds; productivity; percentage of greenish
seeds; vigor and viability. The crossed lines and dense seeding favored higher Asian
rust development. The soil management systems and seeding influenced plant
height during flowering, maturation and first pod insertion, pods number per plant and
the percentage of pods with three grains, the percentage of seeds retained by 6,00
mm sieve and greenish seeds, and grain productivity. The no-till farming linked with
dense seeding provided to soybean plants desirable characteristics, obtaining a
higher productivity. The physiological quality of the seeds was not influenced by the
cultivation systems.
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LIMA, Maurício Apolônio de. Sistemas de cultivo sobre as características agronômicas e qualidade fisiológica das sementes de soja . 2015. 61 f. Dissertação (Mestrado em Engenharia Agrícola) - Universidade Federal de Mato Grosso, Instituto de Ciências Agrárias e Tecnológicas, Rondonópolis, 2015.