Out-crossing trials with groundnuts (arachis hypogaea l.)

Gibbons, R.W. and Tattersfield, J.R. (1969) Out-crossing trials with groundnuts (arachis hypogaea l.). Rhodesian Journal of Agricultural Research, 7. pp. 71-75.

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Outcrossing trials with groundnuts were conducted in Malawi, Rhodesia and Zambia using the dominant marker gene krinkle with a range of commonly cultivated groundnuts as tester varieties In Malawi low out-crossing rates were recorded in 1966 and on out-crossing at all in 1967 and 1968. Only one out-crossed plant was recorded in Zambia. during 1967. These low rates are attributed to low bee activity in these areas. In Salisbury during 1967 all the tester varieties out-crossed as did the marker varieties. The highest rate of out-crossing was in the Makulu Red variety (1.67%). Bee activity was higher in Salisbury than in Malawi but this activity was possibly due to the presence of more attractive crops such as sunnhemp and sunflowers which were grown in the vicinity of the trials. The needs of protecting groundnuts from out-crossing and mechanical mixing are discussed, together with the utilization of natural hybrids found in groundnut crops

Item Type: Article
Additional Information: SNNigam collections
Author Affiliation: Plant Breeder Grain Legumes Pathology Team. A.R.C. of Malawi Post Box, 215, Lilongwe,
Subjects: Statistics and Experimentation
Crop Improvement
Plant Physiology and Biochemistry > Plant Physiology
Divisions: Groundnut
Depositing User: Mr T L Gautham
Date Deposited: 11 Sep 2013 11:06
Last Modified: 11 Sep 2013 11:06
URI: http://eprints.icrisat.ac.in/id/eprint/11657

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