Produção de sementes de cebola em sistemas convencional e agroecológico / Onion seeds production in conventional and agroecological systems

AUTOR(ES)
DATA DE PUBLICAÇÃO

2005

RESUMO

The present work had the objective to study conventional and agroecological systems of onion seed production. For that, three proprieties of agroecological production in Candiota and Hulha Negra, Rs, were followed and two conventional were used. They were at random and six sub samples were taken from each experimental unit, each of them with two meters over the production line. The variables studied were: bulb weigh, bulb diameter, bulb number per area, number of stems per bulb, number of flowers per umbela, number of seeds per flower, seed moisture content, seed efficiency, germination, first counting, weigh of 1000 seeds, accelerated aging, speed of germination seed health. Based on the results the following conclusions were taken: The production of onion seed through agroecological system is economical possible and ecologicaly sustainable; the onion seeds production in conventional systems is less than 30% of his potential; we can consider that the agroecolgical and conventional production of onion seeds have similar potential and physiologic quality; and the number of flowers per umbela is the main component of onion seed production .

ASSUNTO(S)

allium cepa cebola sementes de hortaliças agronomia vegetables seeds agroecological seeds sementes allium cepa sementes agroecológicas

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