Characterization of cotton (Gossypium hirsutum L.) varieties for growth and productivity traits under water deficit conditions

Mahmood, S. . Inst. of Pure and Applied Biology; Irfan, M. . Inst. of Pure and Applied Biology; Raheel, F.; Hussain, A.

Characterization of cotton (Gossypium hirsutum L.) varieties for growth and productivity traits under water deficit conditions

2006

Mahmood, S. (Bahauddin Zakariya Univ., Multan (Pakistan). Inst. of Pure and Applied Biology) | Irfan, M. (Bahauddin Zakariya Univ., Multan (Pakistan). Inst. of Pure and Applied Biology) | Raheel, F. | Hussain, A.

The present study was carried out to reveal drought tolerance of eight cotton varieties (BH-118, CIM-446, FH-900, FH-901, MNH-93, MNH-552, MNH-554 & NIAB Krishma) using various growth and productivity traits. These varieties were subjected to two and four water deficit cycles. The varieties showed distinct responses with respect to moisture deficit conditions. Certain growth and productivity traits provided some manifestation of drought resistance in these varieties. The MNH-93 and BH-118 appeared to be more droughts tolerant for both growth and yield parameters as compared to other varieties under evaluation. MNH-552, MNH-554 CIM-446, FH-900 and NIAB-Krishma exhibited some potential to withstand drought intensities, although an affirmative relationship for growth and yield attributes can not be established in these varieties. The study suggested that intra-specific morphological diversity can further be exploited to acquire genetic inform ation about traits which signify drought resistance using molecular markers.

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