CYTOGENETIC EFFECTS OF TILT ON ROOT TIP MERISTEM OF ONION ALLIUM CEPA L.
|P.V.Pulate1* and J.L.Tarar2
|Corresponding Author: P.V.Pulate, E-mail: [email protected]|
|Received: 04 February 2014 Accepted: 28 February 2015|
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Cytotoxic effect of the fungicide tilt was investigated in root tip cells of Allium cepa. The seeds of A.cepa were treated with different concentrations (0.02%, 0.04%, 0.06%, 0.08 %) of Tilt for 3, 6, 9, 12 h treatment periods. The results showed that the mitotic indices gradually decreased with increase in time and concentration gradient. The abnormalities observed include C-metaphase, sticky metaphase, diagonal metaphase, disturbed metaphase, multipolar anaphase, precocious anaphasic chromosome, chromosome bridge at anaphase, laggard.