Assessment of colchicine sensitivity in African marigold (Tagetes erecta) var. Pusa Narangi Gainda
| Autor: | R. Nandhini, P. Aruna, A. Sankari and, R. Ravikesavan |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Electronic Journal of Plant Breeding, Vol 10, Iss 2, Pp 922-929 (2019) |
| Druh dokumentu: | article |
| ISSN: | 0975-928X 30968917 |
| DOI: | 10.5958/0975-928X.2019.00118.2 |
| Popis: | The present experiment was carried out to determine colchicine sensitivity in African marigold (Tagetes erecta)var. Pusa Narangi Gainda to various levels of colchicine (0.00, 0.02, 0.04, 0.06, 0.08 and 0.1%) at different duration of soaking (0, 1, 2 and 3 hours). The experimental results indicated that the effect of colchicine concentration and duration of treatment has a significant effect on morphological parameters of African marigold. Result showed gradual and significant reduction in germination percentage (40%), survival of seedlings (9%), shoot length (6.1cm), root length (3.2cm), leaf length (3.25cm) and leaf width (1.35cm) with the increase in concentration of colchicineat 0.1% for 3 hours of soaking. The probit curve analysis based on mortality percentage of treated seeds revealed, the LD50 dosage of colchicine to be 0.11% with a soaking duration of one hour for African marigold var. Pusa Narangi Gainda. |
| Databáze: | Directory of Open Access Journals |
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