SOIL AND LIME EFFECTS ON PHYSICAL AND PHYSIOLOGICAL CHARACTERISTICS OF BEAN SEEDS
LUÍS SÉRGIO RODRIGUES VALE E JOÃO NAKAGAWA
The objective of this work was to evaluate the influence of lime levels and RTNP, 99%(C99) and 75% (C75), applied in two soils, clay distrophic (Hapludalf) and dark Latosol sandy loam (Haplortox), on the physical and physiological quality of bean seeds, cv. Aporé, in Botucatu, São Paulo State, Brazil. For the dark Latosol the treatments were: C99: 0; 1.5; 2.25; 3.00; 3.75; 4.50 and 5.25t/ha; C75: 0; 1.93; 2.90; 3.87; 4.84; 5.81 and 6.78t/ha; for the clay distrophic soil the treatments were: C99: 0; 4.50; 6.75; 9.00; 11.25; 13.50 and 15.75t/ha; C75: 0; 6.00; 9.00; 12.00; 15.00; 18.00 and 21.00t/ha of lime. The appraised parameters were: germination, vigor (speed of field emergence and conductivity), seed size (sieve grading) and weight of 100 seeds. The germination and the electrical conductivity of the bean seeds solution bean seeds were influenced, only the one of dark Latosol, by the lime levels with the highest RTNP. The influence of the treatments was not verified on the seeds witht relationship to the percentage and the speed of field emergence. The clay distrophic soil produced seeds with higher germination and vigor (conductivity) than the dark Latosol. The proportion of seeds retained in the sieves grading was influenced by RTNP and lime levels. The weight of 100 seeds was only influenced by the lime levels in the clay distrophic soil, which produced seed with higher than in the dark Latosol.
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