Response of potato to full and deficit irrigation under semiarid climate: Agronomic and economic implications

Karam, F.; Amacha, Nabil; Fahed, Salim; Asmar, T. El; Domı́nguez, A.

doi:10.1016/j.agwat.2014.05.007

Cited by 38 publications

(29 citation statements)

References 34 publications

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“…This outcome supports the findings of Doorenbos and Kassam (1979) who reported that tuber initiation is the stage most sensitive to water stress, while tuber bulking is the least sensitive. In contrast, Fabeiro et al (2001) and Karam et al (2014) found tuber bulking to be the stage most sensitive to water stress. The recent study of Pavlista (2015) revealed the poorest potato plant growth and the lowest tuber yield were obtained when the amount of water decreased by half from tuber initiation through to early tuber bulking stage (early log phase of tuber growth), from 2 to 8 weeks after tuber emergence.…”

Section: Interaction Effect Of Irrigation Treatment and Ha Applicationmentioning

confidence: 68%

“…Kahlon and Khera (2015) demonstrated that water stress during tuber initiation can considerably reduce tuber yield. However, Fabeiro et al (2001) and Karam et al (2014) reported that the greatest reductions in tuber yield occurred when plants were exposed to water stress at the end of the season or during tuber bulking. Assessment among water regime treatments showed that, water stress at tuber bulking stage (WR5) increased tuber weights in the biggest size grade (G3) and yielded more tubers compared with other water regime treatments (Table 2).…”

Section: Tuber Yield and Yield Componentsmentioning

confidence: 94%

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Water Regimes and Humic Acid Application Influences Potato Growth, Yield, Tuber Quality and Water Use Efficiency

et al. 2016

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This study assessed effects of irrigation water regimes and humic acid (HA) application on vegetative growth, yield, tuber quality and water use efficiency (WUE) of potato. Five irrigation treatments were applied at three developmental stages; (WR1) control (100 % crop evapotranspiration, 100 % ETc) at all plant growth, (WR2) 75 % ETc at all stages, (WR3) 75 % ETc at stage S1 (vegetative growth), (WR4) 75 % ETc at stage S2 (tuber initiation), and (WR5) 75 % ETc at stage S3 (tuber bulking). HA was applied at a rate of 1.5 g L −1 30 day after seed pieces planting. Plants experiencing water stress at S1 were shorter with fewer branches and lower fresh and dry vine weights. Water stress imposed at S2 significantly reduced tuber number, size, and yield. HA application increased vegetative growth, tuber weight, yield, WUE, and tuber quality (specific gravity and starch content). Thus, applying 1.5 g L −1 HA during vegetative growth and a 75 % ET water regime at S3 can increase potato production and tuber quality while reducing water use.Resumen En este estudio se evaluaron los efectos de los regímenes de agua de riego y la aplicación del ácido húmico (HA) en el crecimiento de la planta, rendimiento, calidad de tubérculo y la eficiencia del uso del agua (WUE) de la papa. Se aplicaron cinco tratamientos de riego en tres estados de desarrollo; (WR1) testigo (100 % evapotranspiración del cultivo, 100 % ETc) a todo el crecimiento vegetativo, (WR2) 75 % ETc en todas las etapas, (WR3) 75 % ETc en la etapa S1 (crecimiento vegetativo), (WR4) 75 % ETc en la etapa S2 (iniciación de tubérculo), y (WR5) 75 % ETc en la etapa S3 (llenado de tubérculo). Se aplicó HA a un nivel de 1.5 g*L-1 30 días después de la siembra de las unidades de semilla. Las plantas que experimentaron agobio hídrico en S1 fueron más cortas con menos ramas y pesos más bajos fresco y seco del follaje. El agobio hídrico impuesto en S2 redujo significativamente el número de tubérculos, el tamaño y el rendimiento. La aplicación de HA aumentó el crecimiento vegetativo, el peso de tubérculo, el rendimiento, WUE, y la calidad del tubérculo (gravedad específica y contenido de almidón). De aquí que la aplicación de 1.5 g*L-1 de HA durante el crecimiento vegetativo y un régimen de agua de 75 % de ET en S3 puede aumentar la producción de papa y la calidad del tubérculo mientras se reduce el uso del agua.

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Section: Interaction Effect Of Irrigation Treatment and Ha Applicationmentioning

confidence: 68%

Section: Tuber Yield and Yield Componentsmentioning

confidence: 94%

Water Regimes and Humic Acid Application Influences Potato Growth, Yield, Tuber Quality and Water Use Efficiency

et al. 2016

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“…Crop evapotranspiration (ET) was calculated by the following water balance equation (Karam et al 2014).…”

Section: Methodsmentioning

confidence: 99%

Yield and water productivity of mustard under sprinkler and basin irrigation systems

Mila¹,

Akanda²,

Biswas³

et al. 2016

Bangladesh J. Sci. Res.

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Field experiment was conducted during two consecutive years (2011-12 and 2012-13) to investigate the yield and water productivity (WP) of mustard (BARI Sarisha-14 variety) using sprinkler irrigation. There were six irrigation treatments (sprinkler irrigation at vegetative (T 1 ), pre-flowering (T 2 ) and pod formation (T 3 ) stage, sprinkler irrigation at vegetative and pod formation stage (T 4 ), sprinkler irrigation at pre-flowering and pod formation stage (T 5 ); and basin irrigation at vegetative, pre-flowering, and pod formation stage (T 6 ) (farmer's practice). Results indicate that yield and yield components responded positively against different soil moisture regime. The significant highest yield (1.41 and 1.37 t/ha) was obtained by applying basin irrigation at three growth stages, with no statistical difference in yield (1.38 and 1.34 t/ha) with the application of sprinkler irrigation at vegetative and pod formation stages. Vegetative stage was the most critical stage to sprinkler irrigation and pod formation is the next most sensitive stage for mustard cultivation. Sprinkler irrigation can save more than 65 and 35 % of water with the yield reduction of 12.96 and 2.16%, respectively, in treatment T 1 and T 4 compared to treatment T 6 . These treatments (T 1 and T 4 ) also gave higher water productivity, irrigation water productivity, and net revenue than treatment T 6 . The results will be helpful for policy planning regarding efficient irrigation and water management under water scarce situation.

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“…This highlights both tuber initiation and tuber bulking as the most sensitive stages to water deficit (Shock et al, 1998;Hassan et al, 2002;Paredes et al, 2018). However, only a few studies have been conducted under semi-arid conditions (Fabeiro et al, 2001;Karam et al, 2014) and they have shown that water deficit from onset of leaf senescence to harvest caused a large reduction in yield (between 11 and 12%), contrasting with some studies previously cited (Shock et al, 1998;Hassan et al, 2002). This could be partly explained due to the variable tolerance to drought of the varieties used in those experiments, as pointed out by Vos and Haverkort (2007).…”

Section: Introductionmentioning

confidence: 94%

Analysis of deficit irrigation strategies by using SUBSTOR-Potato model in a semi-arid area

et al. 2019

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In areas where water is scarce, the use of regulated deficit irrigation, combined with decision support system tools, may decrease the impact of agriculture on natural water resources, as well as on energy consumption, thereby improving the profitability of farms. With this aim, the SUBSTOR-Potato model (incorporated in the DSSAT Program) was evaluated with a 2-year field test (2011 and 2012) conducted in a semi-arid area (Albacete, Spain) applying four irrigation levels (120, 100, 80 and 60% of irrigation requirements). Subsequently, the model was used for simulating the potato yield under several deficit irrigation strategies (ISs) during 30 years of a semi-arid climate (1988–2017) and determining the most profitable option. The considered ISs were deemed those most suitable from the yield and water productivity point of view by some authors. The model performance for tuber yield was satisfactory with an index of agreement >0.91 and errors between 0.71 and 3.06 × 103 kg/ha. The ISs simulated with SUBSTOR-Potato showed that slight deficit irrigation (5–10%) may increase the water productivity and profitability of the farms. Moreover, tuber formation (from onset of tuber initiation to harvest) was shown to be the most sensitive stage, therefore it is highly recommended to avoid deficit during this stage, which would cause a large reduction in yield (around 8 t/ha, depending on the level of deficit suffered by the crop).

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Response of potato to full and deficit irrigation under semiarid climate: Agronomic and economic implications

Cited by 38 publications

References 34 publications

Water Regimes and Humic Acid Application Influences Potato Growth, Yield, Tuber Quality and Water Use Efficiency

Water Regimes and Humic Acid Application Influences Potato Growth, Yield, Tuber Quality and Water Use Efficiency

Yield and water productivity of mustard under sprinkler and basin irrigation systems

Analysis of deficit irrigation strategies by using SUBSTOR-Potato model in a semi-arid area

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