Reproductive efficiency of 14 Virginia-type peanut cultivars.

Coffelt, T.A. and Seaton, M.L. and VanScoyoc, S.W. (1989) Reproductive efficiency of 14 Virginia-type peanut cultivars. Crop Science, 29 (5). pp. 1217-1220.

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Fourteen Virginia-type groundnut (Arachis hypogaea) cultivars were evaluated at Suffolk, Virginia, to determine the changes in reproductive efficiency (RE) due to breeding since 1944. The cultivars varied in release date, maturity, growth habit and developmental breeding method. Plantings were made on 16 May 1983 on an Eunola loamy fine sand and on 10 May 1984 on a Nansemond fine sandy loam. Two randomly chosen plants from each cultivar from each of 4 replicates were evaluated for RE using 5 different methods. Results indicated that earlier maturing cultivars had a greater RE than later maturing cultivars, erect cultivars had a greater RE than spreading cultivars and RE was not affected by breeding method. Newer cultivars showed a higher RE using only one method. The higher yield of most newer cultivars appeared to be related more to total flower production than to RE. For further yield increases, developing cultivars with combinations of high RE, good harvest index and total flower count is recommended.

Item Type: Article
Uncontrolled Keywords: Reproductive efficiency, Virginia-type peanut cultivars.
Author Affiliation: USDA-ARS, Tidewater - Agricultural Research and Extension Centers, USA.
Subjects: Crop Improvement
Crop Improvement > Plant Breeding
Divisions: Groundnut
Depositing User: Mr Arbind Seth
Date Deposited: 26 Dec 2012 11:27
Last Modified: 26 Dec 2012 11:27
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