EFFECT OF DIFFERENT SUBSTRATES ON EMERGENCE THE GROWTH SEEDLINGS OF JACK BEAN (Canavalia ensiformes L.)

We tested different substrates, in order to verify that provide better conditions for germination, seedling emergence and the vegetative development of jack bean (Canavalia ensiformis L.). We evaluated 30, 60, 90 and 120 days after sowing, the percentage of seedling emergence (G) and the speed of germination of seedlings (GSI) and the growth of seedling. The statistical design was randomized blocks with six substrates (sand), (soil), (sand + soil), (soil + cattle manure), (sand +cattle manure) and (sand + soil + cattle manure). Evaluations were made of seed emergence and speed of germination of seedlings. There were significant differences in percentages among treatments in the emergency period. Substrates composed of sand, soil and manure had the highest rates of emergence and emergence speed index. Regarding the development of the root system of Canavalia ensiformis (Jack bean), it was found that the substrate with the soil, all plants had the highest values in terms of length. The height growth of Canavalia ensiformis was influenced by the different substrates analyzed. Among the substrates, the better the (sand + soil + cattle manure), which increased the growth of seedlings.