NOTAS
Efeito de espécies de micorrizas vesicular arbusculares em siratro (Macroptilium atropurpureum)1 1 Parte da Tese de Doutoramento apresentada, pelo primeiro autor, à ESALQ em 1980.
Effects of vesicular-arbuscular mycorrhizae on siratro (Macroptilium atropurpureum)
Ely Sidney LopesI, 2 2 Com bolsa de suplementação do CNPq. ; Elizabeth de OliveiraI, 3 3 Biologista. Estagiária com bolsa de aperfeiçoamento do CNPq. ; André Martin Louis NeptuneII
ISeção de Microbiologia do Solo, Instituto Agronômico, IAC
IIE.S.A. "Luiz De Queiroz", Usp, Piracicaba, IAC
SUMMARY
A pot experiment, with gama irradiated latossol of low phosphorus content, was carried out to evaluate the effect of Gigaspora margarita, Gigaspora heterogama, Gigaspora sp. (E5), Glomus macrocarpus, Glomus caledonius (two types), Glomus fasciculatus (E3) and Acaulospora laevis, in the dry matter production of siratro. Seedlings grown from sterilized seeds, germinated on sterile sand were inoculated with spores of each mycorrhiza species, and with effective rhizobia. Dry matter production of plant top was evaluated at 75, and nodules at 82 days after transplanting. Inoculation with Glomus macrocarpus and with Glomus fasciculatus enhanced growth by a factor of 14 over the dry matter of the non inoculated treatment. No clear beneficial effect of inoculation was observed with Gigaspora heterogama, Gigaspora sp., Glomus caledonius and Glomus mosseae. Inoculation with the other species increased dry weight but were not as good as in plants inoculated with Glomus macrocarpus and Glomus fasciculatus. Where growth was improved, there was also an effect of mycorrhiza on nodule number, size and dry weight.
Texto completo disponível apenas em PDF.
Full text available only in PDF format.
Recebida para publicação a 19 de maio de 1980.
Datas de Publicação
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Publicação nesta coleção
21 Dez 2007 -
Data do Fascículo
1980
