ABSTRACT: Variability for leaf characters viz.,
petiole length (cm); leaf area (mm 2 ), leaf width (mm),
leaf length (mm) and leaf thickness (mm) were studied in
cultivation and wild species belong to different genomes
A (G. herbaceum and G. arboreum) and B (G. anomalum (B 1
); D (G. thurberi (D 1 ), G. armourianum (D 2-1 ); G.
davidsoni (D 3-d ) G. aridum (D 4 ) G. raimondii (D 5 );
G. trilobum (D 8 ). In addition races of cultivated G.
arboreum viz., indicum, bengalensis, sinensis, perennial
varieties kudaikotti and punaspatti; and G. hirsutum
cotton (races viz., Palmeri, Punctatum, and Morilli,
perennial cottons Exotic-3, and Seridov; and G.
barbadence perennial cotton 'Kidney Cotton'.
Considerable amount of variability was noticed for leaf
characters, which can be advantageously exploited for
introgression of desirable leaf characters from wild /
races / perennial cottons to cultivated cottons. These
characters will be useful for developing promising germ
plasm lines with marker characters by pre-breeding and
handling of segregating material of cultivated x
wild interspecific crosses of Gossypium.