Effect of saline irrigation on germination and growth parameters of barley (Hordeum vulgare L.) in a pot experiment |
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| Institution: | 1. Academy of Chinese Energy Strategy, China University of Petroleum, Beijing, China 102249;2. School of Business, Society and Engineering, Mälardalens University, Sweden;1. School of Materials Science & Engineering, Kookmin University, Seoul 02707, Republic of Korea;2. Department of Energy & Mineral Resources Engineering, Sejong University, Seoul 05006, Republic of Korea;3. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei, Taiwan, ROC;4. Nuclear Science Research Institute (NSRI), King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia;5. Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy and Materials, Inha University, Incheon 22212, Republic of Korea;6. Department of Chemistry, Mount Carmel College, Bengaluru, Karnataka 560052, India;7. Department of Chemical Engineering, Khalifa University, Abu Dhabi, United Arab Emirates |
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| Abstract: | The effect of saline irrigation was investigated on germination and growth parameters of six barley (Hordeum vulgare L.) cultivars in a pot experiment. The crop germination decreased between 24–35% with irrigation water having EC of 9.26 dS m?1, 28–47% with water EC of 13.4 dS m?1 and 30–53% with water EC of 16.28 dS m?1 among various cultivars. The sequence of reduction in germination was Hassawi > Gusto > Madini > M. Khariji > Qassimi. Plant height and total number of plant tillers decreased significantly with increasing irrigation-water salinity. Plant height ranged between 39.43 cm (Qassimi cultivar) with water EC of 3.00 dS m?1 to 1.97 cm (Gusto) with water EC of 16.28 dS m?1 whereas the range for total number of plant tillers per pot was 77.00 (Qassimi) with irrigation EC of 3.00 dS m?1 to 9.67 (Gusto) with irrigation EC of 16.28 dS m?1. The trend of reduction in plant height for different cultivars was Gusto > Qassimi > Hassawi > Madini > M. Khariji whereas for plant tillers, the sequence was Gusto < Hassawi < M. Khariji < Qassimi < Madini. Greenmatter and drymatter yield decreased significantly with increasing irrigation water salinity. The greenmatter yield ranged between 138.67 g per pot (Madini) with water EC of 3.00 dS m?1 to 11.40 g per pot (Gusto) with water EC of 16.28 dS m?1. A similar trend was found for drymatter yield. The trend of reduction in yield among various cultivars (both greenmatter and drymatter) was Gusto > Hassawi > M. Khariji > Qassimi > Madini. Overall sequence of salt tolerance for different barley cultivars was Madini > Qassimi > M. Khariji > Hassawi > Gusto. A comparison of cultivars indicated that irrigation waters with EC 13.40 dS m?1 and above reduced crop germination and greenmatter production to a significant level. In conclusion, there exists a lot of potential for a reasonable production of barley as forage crop with irrigation water having salinity up to 9.26 dS m?1 provided 15% extra water above crop-water requirement is applied as leaching requirements to control soil salinity. |
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