Abstract
The present study was conducted to analyze the chemical and physical mutagenesis on Cicer arietinum with special reference to cytological studies. In this regard, CO – 4 variety of chick pea was subjected to different concentration of gamma rays (20, 30, 40, 50 and 60kR) and EMS (10, 20, 30, 40 and 50mM) for inducing mutation. The M1 plants exposed to mutagen produces a clear cut difference from the untreated control. The root mitotic studies reveal a wide range of chromosomal aberrations such as stickiness, laggards, bridges and some other precocious movement. The percentage of abnormal cell increased with dosage in both mutagens; and 50mM EMS showed more chromosomal aberrations when compared to gamma rays.
Highlights
The breeding by means of mutation is the best way to enhance the qualities and yields in crop plants
The aims of this study were to analyze the cytological aberrations in chick pea due to the treatments with different mutagens
The seeds of chick pea variety CO–4 obtained from Tamil Nadu, Agricultural University, Coimbatore, Tamil Nadu, India were used for the present study
Summary
The breeding by means of mutation is the best way to enhance the qualities and yields in crop plants. A productive hereditary change of a cultivar relies upon the method of quality mutation and the interrelationship among plant characters [4]. Cicer arietinum L. is one among the highly cultivated crop plants in all parts of the word and is usually self-pollinated with diploid characteristics and 2n= 16 chromosomes [1]. The extent of cytological changes in mitosis or meiosis is considered as a dependable feature for calculating the ability of mutagen [2]. The aims of this study were to analyze the cytological aberrations in chick pea due to the treatments with different mutagens
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