Potentiality of arbuscular mycorrhizal inoculants applied to cassava crop (Manihot esculenta Crantz) in Kibala, Angola
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Abstract
mycorrhizal inoculants applied at low quantities to cassava
crop (Manihot esculenta Crantz) and the high mycorrhizal
dependence as well as the significance of this crop in Angola,
it is essential to evaluate the effectiveness of such products
in this country, as a way to obtain an efficient mycorrhizal
symbiosis and its benefits on cassava plantations. An
experiment was conducted on a Rhodic Distric Ferralsol,
in order to appraise the effect of Funneliformis mosseae
strain INCAM-2 compared with a control treatment, in a
randomized block design with four repetitions and 32 plants
per plot. The trial was carried out in a Kibala producers’
farm, South Kwanza province, using Calohendo variety.
The inoculant was applied at planting time by coating both
propagule tips at the dose of 11,6 kg ha-1. The application
of F. mosseae provided significant increases (P<0,001) in
every variable tested, achieving more vigorous and taller
plants, their height raising about 21 %, whereas edible root
yields rose from 14,4 mg ha-1 in the control to 33,6 mg ha-1
in the inoculated treatment and mycorrhizal spores improved
eight times at harvest time, indicating the effectiveness of
F. mosseae under these edaphic conditions. These results
prove the potentiality of applying such mycorrhizal products
to cassava crop in Angola.
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