Somaclonal Variation and Chemically Induced Mutagenesis for the Production of Salt and Drought Tolerance in Tomato

Genetic Improvement of Tomato

“…Several types of valuable variants or mutants have been recovered among regenerants of commercial varieties, breeding lines and wild species of tomato (Sree Ramulu 1982a; Evans and Sharp 1983;Sibi et al 1984;Zagorska et al 1986;Gavazzi et al 1987;Crino et al1989;Sala et al 1989). Such genetic variation is of both theoretical and practical significance.…”

“…In L. esculentum plants regenerated from leaf explants, Evans and Sharp (1983) recovered 12 nuclear, single-gene, morphological mutations. (1985), Cassels et al (1985), Zagorska et al (1986), Gavazzi et al (1987), Crino et al (1989 and Sala et al(1989) reported several types of somaclonal variants in tomato cultivars and breeding lines (Table 20.1). Also Buiatti et aI.…”