Conexão Ciência
Artigo

Study of soil blue-green algae and their effect on seed germination and plant growth of vegetable crops

Resumo

As algas verde-azuladas que fixam nitrogênio são uma importante contribuição para a fertilidade do solo. Tem sido sugerido que as algas verde-azuladas (BGA) auxiliam no crescimento superior das plantas, fornecendo substâncias de crescimento. Existem numerosos trabalhos sobre o papel das algas verde-azuladas em solos de arroz e no crescimento do arroz, mas poucos sobre outras plantas. Nesta pesquisa, foram identificadas 19 morfoespécies pertencentes a três famílias de algas verde-azuladas heterocísticas e não heterocísticas de vários arrozais no norte do Irã, das quais sete espécies são novas para o Irã.



Abstract

Nitrogen fixation blue-green algae make a major contribution to the fertility of soil. It has been suggested that blue-green algae (BGA) assist higher plant growth by supplying growth substances. There are numerous works about roles of blue-green algae in paddy soils and rice growth but little on other plants. In this research, 19 morphospecies belonging to three families of heterocystous and non-heterocystous blue-green algae from several paddy fields in the north of Iran were identified out of which seven species are new to Iran.



Palavras-chave:

Algal extract,Biofertilizer,CYANOPHYTA,Iran,morphospecies

Termos de indexação:

extrato de algas,Biofertilizante,CIANOFITA,Irã,morfoespécie

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