Publication Date

1993

Description

Results are summarised from the agronomic evaluation of 33 new accessions of Arachis spp., especially of the Ca1dorhizae and Rhizomatosae sections, on seasonally flooded land with 2 levels of fertiliser (low::pasture establishment and high=crop production). Level of fertiliser had no significant effect on the dry mailer yield (DMY) of any plant component. The edible green DMY of the best 9 accessions ranged from 2-6 tlha, with an average IVDMO of 63% for the stems and 61% for the leaves, respectively. The total DMY in the wet season ranged from 2.5 to 10 tlha, The ratio of above-ground to underground DMY varied from 0.2:1 for the low yielding accessions to 0.8:1 for the more productive ones, BRA015253b, 015598 and accessions 33 and 45, The only desnctlve disease was rust, mainly in the A. glabrata group. The other main diseases and pests detected were: cercospora leaf spots, anthracnose (Collerotrichrium gloeosporioides), peanut mottle virus and spider mite (Tetranichus urticae). Seed yields were variable with large differences between accessions. Yields ranged from 2 kg/ha for BRA012116 to 1200 kg/ha for BRA013251SQS 213 BLOCO G APT 502,70292-170-Brasilia DF BRAZIL.

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Arachus spp.: Introduction and Evaluation of New Accessions in Seasonally Flooded Land in the Brazilian Cerrado

Results are summarised from the agronomic evaluation of 33 new accessions of Arachis spp., especially of the Ca1dorhizae and Rhizomatosae sections, on seasonally flooded land with 2 levels of fertiliser (low::pasture establishment and high=crop production). Level of fertiliser had no significant effect on the dry mailer yield (DMY) of any plant component. The edible green DMY of the best 9 accessions ranged from 2-6 tlha, with an average IVDMO of 63% for the stems and 61% for the leaves, respectively. The total DMY in the wet season ranged from 2.5 to 10 tlha, The ratio of above-ground to underground DMY varied from 0.2:1 for the low yielding accessions to 0.8:1 for the more productive ones, BRA015253b, 015598 and accessions 33 and 45, The only desnctlve disease was rust, mainly in the A. glabrata group. The other main diseases and pests detected were: cercospora leaf spots, anthracnose (Collerotrichrium gloeosporioides), peanut mottle virus and spider mite (Tetranichus urticae). Seed yields were variable with large differences between accessions. Yields ranged from 2 kg/ha for BRA012116 to 1200 kg/ha for BRA013251SQS 213 BLOCO G APT 502,70292-170-Brasilia DF BRAZIL.