Year: 2011
Type: article
Abstract: A field experement was conducted of full season of 2008 in Al-Khalis Experimental Station to investigate the effectiveness of presowing seeds soaking in water and ( CaCl2 ) solution then subjected the plants to water stress for once and twice at growth stages of GS1,GS2 and GS3 to show sorghum plants potentiality cv. Kafir of drought tolerance . Results showed that CaCl2 increased leaf area of 10680.75 and 10311.00 cm2 and chlorophyll content of 871.75 and 863.00 mg.g-1 respectively. While the water soaking was superior to increase leaf content of proline of 6.12 and 6.53 mg.g-1 which subjected to once or twice water- stressed reaspectively. Water stress led to significant decrease plant height in each growth stage of 163.75 and 159.12 cm for once and twice respectively. The stress at GS1 significantly effected on leaf area decrease of 148 and 141 cm2 and chlorophyll content of 852 and 772 mg .g-1 ,while plants subjected to stress at GS2 gain the highest proline of 6.5 and 7.14 mg.g-1 and protein % of 9.0 and 9.1% , for once and twice respectively . The combination of water soaking x water stress (once or twice) x GS2 gain highest proline content. It was concluded that the soaking of sorghum seeds are important technique and urgent necessary to enhance their plants potentiality to tolerate stress environment. Thus it could gave an acceptable yield under these environment .Therefore, it is recommended to pre-sowing soak seeds with CaCl2 solutions to activate and derivate seed potentiality to actively express itself then it could tolerate stress environment.
Source: Iraqi Journal of Desert Studies
Author: وسام مالك داود
Language: Arabic
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
OpenAlex ID: W2968794365