Evaluating the performance of amiprophos methyl and gamma-irradiated seeds on growth and yield traits of pigeon pea
2013
Udensi, O. (University of Calabar (Nigeria). Dept. of Genetics and Biotechnology) | Ntui, V.O. (Chiba Univ. (Japan). Graduate School of Horticulture)
The seeds of two varieties of pigeon pea [Cajanus cajan (L.) Mill], brown "Fiofio" and white "Fiofio", were treated with 0, 4, 6 and 8ppm amiprophos methyl (APM) for 48 h, or exposed to ?-irradiation at 0, 200, 400, 600 Gy (Gray) from 60Co source. There was significant (P less than 0.05) effect of the mutagenic treatments on all the growth and yield traits evaluated except for percentage germination and these effects were dose-dependent. Seeds exposed to 200 Gy of gamma-rays gave better seed yield when compared with APM soaked seeds. The treatment of pigeon pea seeds with APM and gamma-rays could serve as alternative breeding and improvement techniques to achieve high seed productivity, especially at lower doses. Succinctly, it does suggest that if mutagenic process is monitored and directed carefully, it could proffer significant alternative for improving pigeon pea landraces, especially if the seeds are exposed to ?-irradiation at the dose of at least 200 Gy.
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