Wheat response to water stress condition at different growth stages in Amibara, Ethiopia

Hassen, Jemal Mohammed; Wondimu, T. Adugna; Borena, Fikadu Robi; Kebede, N. Tufa; Niguse, Awetahegn; Hailu, Elias kebede

doi:10.5897/ajar2019.13919

Cited by 4 publications

(2 citation statements)

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“…On the other hand, the lowest WP (1.1 kg m −3 ) was obtained at 100% ETc and this was statistically similar with 85% ETc. In a wheat response to a stage-wise DI study from southeastern Ethiopia, Hassen et al (2019) found the highest grain yield (3 t ha −1 ) at full irrigation, which was similar to yields of other DI strategies that irrigated at all stages except the initial stage (2.9 t ha −1 ), and irrigation of all stages except maturity (2.8 t ha −1 ) stages. This means that DI application at less water stress-sensitive growth stages could be an option to increase overall yield and WP with the same amount of water with a very small yield reduction.…”

Section: Wheatsupporting

confidence: 61%

Deficit irrigation as a sustainable option for improving water productivity in Sub-Saharan Africa: the case of Ethiopia. A Critical Review 

Asmamaw¹,

Desse²,

Tilahun³

et al. 2021

Preprint

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Water scarcity is a major limiting factor for crop production by irrigation in sub-Saharan countries. Improved irrigation scheduling that can ensure the optimal use of the allocated water and enhance water productivity (WP) is required to address future water scarcity in the region. Maximizing WP by exposing the crop to a certain level of water stress using deficit irrigation (DI) is considered a promising strategy. To adopt DI strategies, a shred of comprehensive evidence concerning DI for different crops is required. This review aims to provide adequate information about the effect of DI on WP. We reviewed 90 research papers from Ethiopia and summarize the effect of DI on WP and yield. It is shown that DI considerably increased WP compared to full irrigation. Despite higher WP, reduced biomass yield was obtained in some of the studied DI practices compared to full irrigation. It was also found that yield reduction may be low compared to the benefits gained by diverting the saved water to irrigate extra arable land. From this review, we understood that growers must recognize specific soil management and crops before applying DI strategies. Maize revealed the highest (2.65 kg m-3) and lowest (0.50 kg m-3) WP when irrigated at only the initial stage compared with being fully irrigated in all growth stages, respectively. Also, onion showed a decreasing WP with increased irrigation water from 60% crop water requirement (ETc) (1.84 kg m-3) to 100% ETc (1.34 kg m-3). Increasing water deficit from 100 to 30% ETc led to an increase of wheat WP by 72.2%. For tomato, the highest WP (7.02 kg m-3) was found at 70% ETc followed by 50% ETc (6.98 kg m-3) and 85% ETc (6.92 kg m-3), while the water application of 100% ETc (or full irrigation) showed the least WP (6.79 kg m-3). Teff showed the lowest WP (1.72 kg m-3) under optimal irrigation, while it was highest (2.96 kg m-3) under 75% ETc throughout the growing season. The regression analysis (R2) for WP increment and yield reduction versus saved water showed higher values, indicating that DI could be an option for WP increment and increasing overall yield by expanding irrigated area and applying the saved water in water-scarce regions. In conclusion, in areas where drought stress is the limiting factor for crop production, the application of DI is feasible.&#160;&#160;&#160;Keywords: Overall yield increase, water productivity, water saved, yield reduction

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Section: Wheatsupporting

confidence: 61%

Deficit irrigation as a sustainable option for improving water productivity in Sub-Saharan Africa: the case of Ethiopia. A Critical Review 

Asmamaw¹,

Desse²,

Tilahun³

et al. 2021

Preprint

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“…Decline in water reserves conflict for maintenance of food requirements of the world population. Water supply is going to decline progressively but nutrients requirements increasing due to increase in population [9,10].…”

Section: Introductionmentioning

confidence: 99%

Impacts of Biotic and Abiotic Factors on Evaluation of Triticum aestivum L. as a Crop

Rauf,

Amber,

Shah

et al. 2024

Scholars Bulletin

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Wheat (Triticum aestivum L.) is a self-pollinating annual grass which is cultivated as staple crop widely cultivated in the world belong to the family poaceae. Wheat plays a vital role in human and animal nutrition because it is a major source of carbohydrates. Drought is a generally prolonged period of dryness which creates significant damage to crops and prevents their effective growth. It can also refer to a prolonged period of extremely low precipitation, especially one that has a negative impact on growing or living conditions. The nutritional and versatile value of wheat grain recognizes it so important that it can be refined into semolina, flour, and other products such as cookies, bread, pastries, noodles, pasta and couscous also stated that wheat is largely used to make chapatti, cakes and other food products. The germplasm was comprised of test varieties or test treatments and check varieties or control treatments. The field experiment was out by utilizing augmented block design. Parameters like germination %, tillers per plant, canopy temperature, normalized difference vegetation index (NDVI), days to 50% heading, flag leaf area (cm2), days to maturity, plant height (cm) were evaluated. Under drought condition yield/plant had positive and highly significant correlation with number of tillers, seed weight/spike and positive non-significant with NDVI, flag leaf area, days to maturity and thousand kernel weight under drought condition.

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Effect of deficit irrigation and soil fertility management on wheat production and water productivity in the Upper Blue Nile Basin, Ethiopia

Asmamaw

Janssens

Dessie

et al. 2023

Agricultural Water Management

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Wheat response to water stress condition at different growth stages in Amibara, Ethiopia

Cited by 4 publications

References 1 publication

Deficit irrigation as a sustainable option for improving water productivity in Sub-Saharan Africa: the case of Ethiopia. A Critical Review

Deficit irrigation as a sustainable option for improving water productivity in Sub-Saharan Africa: the case of Ethiopia. A Critical Review

Impacts of Biotic and Abiotic Factors on Evaluation of Triticum aestivum L. as a Crop

Effect of deficit irrigation and soil fertility management on wheat production and water productivity in the Upper Blue Nile Basin, Ethiopia

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Wheat response to water stress condition at different growth stages in Amibara, Ethiopia

Cited by 4 publications

References 1 publication

Deficit irrigation as a sustainable option for improving water productivity in Sub-Saharan Africa: the case of Ethiopia. A Critical Review&#160;

Deficit irrigation as a sustainable option for improving water productivity in Sub-Saharan Africa: the case of Ethiopia. A Critical Review&#160;

Impacts of Biotic and Abiotic Factors on Evaluation of Triticum aestivum L. as a Crop

Effect of deficit irrigation and soil fertility management on wheat production and water productivity in the Upper Blue Nile Basin, Ethiopia

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Product

Resources

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Deficit irrigation as a sustainable option for improving water productivity in Sub-Saharan Africa: the case of Ethiopia. A Critical Review

Deficit irrigation as a sustainable option for improving water productivity in Sub-Saharan Africa: the case of Ethiopia. A Critical Review