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VOL. 6, ISSUE 5 (2021)
Mutagens (gamma rays and EMS) induced floral abnormalities in Brassica campestris L. toria cultivars viz. T-9 and PT-303.
Authors
Gopal Krishna Shukla
Abstract
The massive advent of induced mutagenesis is becoming more powerful and effective approach for breeding improved crop varieties and continues to play a significant role for improving world food security in coming years and decades. Keeping this in view, the seeds of two cultivars of Brassica campestris L. toria viz. T-9, PT303, were treated with different doses of physical mutagen (Gamma rays) and chemical mutagen (EMS) for creating variability and selection of improved genotypes. The frequency of morpho-floral variants were screened in M1 generation. It has been observed that frequency of pale yellow, albino, reduced sized petals and apetalous flowers were maximum at higher doses. Plants with increased number of petals, fused petals, large petal flowers were more at lower doses of gamma irradiation and moderate dose of EMS in both cultivars. The plants flower with apetalous and small sized petals as component of high yield. These results suggested that mutagens play a significant role in the alteration of plant architecture and could be utilized further Brassica improvement program.
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Pages:791-793
How to cite this article:
Gopal Krishna Shukla "Mutagens (gamma rays and EMS) induced floral abnormalities in <em>Brassica</em> <em>campestris </em>L. toria cultivars <em>viz</em>. T-9 and PT-303. ". International Journal of Botany Studies, Vol 6, Issue 5, 2021, Pages 791-793
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