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EXPLORATION OF POTENTIAL SOURCES OF SALT TOLERANCE IN COTTON (Gossypium hirsutum L.)

Ahmad, Malik Saghir (1999) EXPLORATION OF POTENTIAL SOURCES OF SALT TOLERANCE IN COTTON (Gossypium hirsutum L.). PhD thesis, Bahauddin Zakariya University, Multan.

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Abstract

The present study was carried out with the primary objectives to assess intercultivar (intra specific) variation for salt tolerance in cotton at different stages of plant life cycle Thus eighty local and exotic cultivars / lines were screened at three growth stages, e g , germination, seedling and adult Germination experiment was conducted in Petri dishes under greenhouse conditions The NaCl concentration applied were 0, 70, and 140 mol m 3 It was possible to categorize all the cultivars / lines into four different groups on the basis of their difference in salt tolerance Twenty six cultivars were placed in tolerant group having germination range (average of 70 and 140 mol m 3 NaCl treatments) from 50 00 to 64 18% The moderately tolerant group had a maximum number (36) of cultivars / lines which had germination range from 40 00 to 49 99%, whereas the moderately sensitive group displayed the germination range from 31 00 to 39 99% The sensitive group included only three cultivars, MNH

Item Type:Thesis (PhD)
Uncontrolled Keywords:Salt Tolerance, Cotton, (Gossypium hirsutum L ), salinity, evapotranspiration, drainage, irrigation, NaCI, Morphological mechanism , Escape mechanism, Physiological mechanism, Mutation breeding, Photosynthesis, Inorganic ions, K+ / Na+ ratio, Na+, K+, Ca2+, P, N, CI , Ginning, Staple, Bolls, Monopodia, Sympodia, Intercultivar, Intra specific, Germination, Seedling, MNH 156, B 557, Culture 728 4, Culture 604 4, MNH 147, Staple length, Fibre maturity, Fibre strength, Sympodia,
Subjects:Biological & Medical Sciences (c) > Biological Sciences(c1) > Biology (c13)
ID Code:287
Deposited By:Mr Ghulam Murtaza
Deposited On:21 Jun 2006
Last Modified:04 Oct 2007 21:00

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