PJB-2003-102
RESPONSE OF FEW NEWLY DEVELOPED SALT-TOLERANT WHEAT LANDRACE SELECTIONS UNDER NATURAL ENVIRONMENTAL CONDITIONS
A.R. MAHAR, J.A. MEMON¹ , S.A. ABRO AND P.A. HOLLINGTON²
Abstract
Performance of five selected wheat (Triticum aestivum L.) cultivars and a local variety as a check were studied during 1990-2001 at Agriculture Research Sub-Station Kot Deji, District Khairpur. The experiment was conducted at three different sites having salinity of 4, 6.5 and 7.8 dSm-1, respectively. Taller plants were produced by CAZS1a while significantly long spikes with more seeds per spike and higher grain weight were produced by CAZS2. Site-I with low salinity produced taller plants (P < 0.05), more spike and significantly higher grains. While the lowest values for all the parameters were recorded at Site three, which was due to higher salinity. Salt tolerance ranking based on grain weight was CAZS2 > CAZS1a > TJ-83 > CAZS1b > CAZS3 > CAZS4. The study suggests that at higher salinity (Site-III), the CAZS2 has potential of producing economic yield while at low salinity (Site-I), CAZS1a, CAZS1b and local variety are equally effective.
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