Emery, D.A. and Sherman, M.E. and Vickers, J.W. (1981) The reproductive efficiency of cultivated peanuts. IV. The influence of photoperiod on the flowering, pegging, and fruiting of Spanish-type peanuts. Agronomy Journal, 73 (4). pp. 619-623.
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Abstract
The time of flowering and pegging during the early development of the peanut plant are heritable and correlated This research was designed to determine the effects of photoperiod on the periodicity of flowering and subsequent peg growth within specific portions of the life cycle of the peanut plant. A Spanish-type peanut, Arachis hypogaea L., C2 (PI 262000), was used in the investigations. Plants exposed to long-day treatments (light interrupted 15-hour dark period) in growth chambers of the North Carolina State University Phytotron Unit, produced 1.84 times more flowers per plant than those grown in 9 hour photoperiods. Plants in short-day treatments reached flowering peaks earlier than those in long-day chambers and produced 134.4 shellable fruit per plant in contrast to 34.1 fruit per plant for long-day treatments. The reproductive efficiency, relative to other plant traits, was also enhanced by growing the plants in short-day photoperiods. Twenty-seven percent of the flowers on plants grown under short days produced shellable fruit resulting in 106.5 g of seed per plant. Only 3.8% of the flowers on plants in long-day chambers produced shellable fruit resulting in 12.1 g of seed per plant. The proportion of seed weight to plant top weight was 59.6% in short-day regimes compared to 3.0% in long-day regimes...
| Item Type: | Article |
|---|---|
| Additional Information: | SNNigam Collection |
| Author Affiliation: | North Carolina State Univ., Raleigh, NC 27607, USA |
| Subjects: | Crop Improvement > Genetics/Genomics Crop Improvement > Plant Breeding Plant Physiology and Biochemistry > Plant Physiology Plant Physiology and Biochemistry > Biochemistry |
| Divisions: | Groundnut |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 20 Mar 2013 09:23 |
| Last Modified: | 01 Apr 2013 05:30 |
| Official URL: | http://dx.doi.org/10.2134/agronj1981.0002196200730... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/9933 |
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