Abou-Bakr,, M. (2006). COMPARATIVE BOTANICAL STUDIES ON THE EFFECT OF IRRIGATION ON BARLEY (Hordeum vulgare L.). Journal of Plant Production, 31(2), 705-721. doi: 10.21608/jpp.2006.235714
M. H. A. Abou-Bakr,. "COMPARATIVE BOTANICAL STUDIES ON THE EFFECT OF IRRIGATION ON BARLEY (Hordeum vulgare L.)". Journal of Plant Production, 31, 2, 2006, 705-721. doi: 10.21608/jpp.2006.235714
Abou-Bakr,, M. (2006). 'COMPARATIVE BOTANICAL STUDIES ON THE EFFECT OF IRRIGATION ON BARLEY (Hordeum vulgare L.)', Journal of Plant Production, 31(2), pp. 705-721. doi: 10.21608/jpp.2006.235714
Abou-Bakr,, M. COMPARATIVE BOTANICAL STUDIES ON THE EFFECT OF IRRIGATION ON BARLEY (Hordeum vulgare L.). Journal of Plant Production, 2006; 31(2): 705-721. doi: 10.21608/jpp.2006.235714
COMPARATIVE BOTANICAL STUDIES ON THE EFFECT OF IRRIGATION ON BARLEY (Hordeum vulgare L.)
Agric. Botany Dept.. Fac, of Ag—ric., Cairo Univ., Giza, Egypt.
Abstract
This study aimed to evaluate the difference between two cultivars of barley
(Hordeum vulgare L.); namely, barley cv. Giza 123 as sensitive to drought and barley
cv. 126 as a tolerant one, also the influence of treatment of the drought on the first
cultivar and the irrigation treatment on the second one. At the age of 14 weeks,
results revealed that, plant height, number of leaves I plant, leaf area, number of
internodes/plant and number of tillersiplant achieved significant decreases using both
treatments for both cultivars. At the age of 16 weeks plants of barley cv. Giza 123
which was treated as tolerant to drought compared with irrigated plants exhibited
significant decreases in number of tillersfplant, number of grain rowsiplant and
number of grainsispike, but were insignificant in number of plants spike, number of
grainsiplant and weight of strawiplant. At the same age, plants of barley cv. Giza 126
which were treated as sensitive to drought compared with the tolerant one, showed
significant decreases in all yield components. Root diameter was thicker in plants of
barley cv. Giza 123 treated as tolerant to drought than the irrigated ones by 16.7%
due to the thicker cortex and pith. The same findings were recorded in barley cv. Giza
126 plants treated as sensitive to drought by 16.3% than the tolerant one due to the
thicker cortex and vascular cylinder. Concerning stern structure, both treated cultivars
had thick ground tissue, by 3.2% for barley cv. Giza 123 and 12.5% for barley cv.
Giza 126. Measurements of leaf lamina revealed that, barley cv. Giza 126 plants
treated as sensitive to drought showed the higher measurements compared with the
tolerant ones. On the contrary, plants of barley cv. Giza 123 treated as tolerant to
drought exhibited lower measurements in most characters against to the irrigated
ones.
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