Assessing Yield, Water Use Efficiency and Evapotranspiration with Ameliorating Effect of Potassium in Wheat Crop Exposed to Regulated Deficit Irrigation

Imran, Muhammad; Anwar-ul-Hassan,; Iqbal, Muhammad Asif; Ullah, Ehsan

doi:10.3923/pjn.2014.168.175

Cited by 7 publications

(7 citation statements)

References 27 publications

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“…For Vitron, the density of plants was 50.8 plants m −2 for T1 followed by an improvement of 91 plants m −2 for T2, 88.5 plants m −2 for T3 and 90.8 plants m −2 for T4. These findings confirm that, in general, irrigation during tillering increases the density of plants (Imran et al, ; Saadi et al, ; Mihoub and Mokhtari, ). Moreover, the good tillering obtained in all treatments can be explained by the fact that during the period between sowing and tillering the plot received significant quantities of rainfall (Figure ).…”

Section: Resultssupporting

confidence: 85%

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Effect of Water Regime on Growth Performance of Durum Wheat (Triticum Durum Desf.) During Different Vegetative Phases

Fellah

Khiari

Kribaa

et al. 2018

Irrigation and Drainage

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Plant growth and yield of cereal crops are seriously affected in drought‐prone environments, hence effective agricultural means are needed. This paper aims to evaluate the beneficial effects of supplemental irrigation, at different phenological phases, on theoretical yield components of two varieties (GTA‐Dur and Vitron) of durum wheat under field conditions. Field experiments included six water regime treatments: crop evapotranspiration ‘ETc’ throughout the wheat‐growing season (i.e. adequately irrigated); rainfed conditions (no irrigation); and four supplemental irrigation treatments (T1–T4) applied respectively at the beginning of four phenological phases of wheat growth (tillering, heading, flowering and grain filling). Yield components were significantly influenced at the beginning of the cropping season, while the components expressed in weights were influenced at late cropping. Theoretical grain yield of the variety Vitron increased by 33% at T1, 84.3% at T2, 424% at T3, 902% at T4 and 1100% at ETc. Water productivity (WP) increased by 45–70% in irrigation treatments compared to rainfed conditions. Our findings stress that the consistency between appropriate water regime and adequate varietal choice increases WP and crop productivity, and improves irrigation water conservation. Complementary irrigation substantially improves the valorization of water by crops in water‐limited areas such as hot arid and semi‐arid regions. © 2018 John Wiley & Sons, Ltd.

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Section: Resultssupporting

confidence: 85%

“…Moreover, the good tillering obtained in all treatments can be explained by the fact that during the period between sowing and tillering the plot received significant quantities of rainfall ( Figure 2). Overall, these results are in agreement with those of Imran et al (2014).…”

Section: Effect Of Supplementary Irrigation On the Density Of Plantssupporting

confidence: 91%

Effect of Water Regime on Growth Performance of Durum Wheat (Triticum Durum Desf.) During Different Vegetative Phases

Fellah

Khiari

Kribaa

et al. 2018

Irrigation and Drainage

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“…Where 100% FC represents the least stress level which subsequently increase at 70 and 40% FC. Amount of water to develop drought levels of 100, 70 and 40% field capacity was calculated following linear regression equation = + given by Imran et al (2014).…”

Section: Screening Of Rhizobacteria For Growth Promotion Under Droughmentioning

confidence: 99%

Scrutinizing of Rhizobacterial Isolates for Improving Drought Resilience in Maize (Zea mays)

Ali¹

2017

IJAB

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Food security due to scarcity of water to field crops is major concern now a days due to stress environments. A growth room trial was performed to screen potential bacterial inoculants for improving growth and physiology of maize (Zea mays L.) under water scarcity. Thirty fast growing rhizobacteria were isolated from rhizosphere of maize, cultivated in arid and semiarid areas of the province (Punjab). Isolates were evaluated for their plant growth promoting characters and drought tolerance, at various moisture levels developed in-vitro by using 0, 5, 10, 15, 20 and 25% polyethylene glycol (PEG-6000). Nine most efficient isolates (LK-2, LK-7, LK-9, LK-13, LK-16, LK-18, LK-21, LK-24, LK-29) were selected, having potential ability to survive in water stressed condition and were tested further in a jar experiment for their role in morphophysiological improvements in maize seedlings, grown at different drought levels (100, 70 and 40% field capacity (FC). Results depicted that inoculation significantly (P≤0.05) enhanced root/shoot biomass & root/shoot ratio, chlorophyll a and b, starch content, soluble sugars, relative water content, photosynthetic rate, water use efficiency and stomatal conductance. Overall, isolate LK-13 and LK-16 were found more prominent in inducing drought tolerance in seedlings as compared to other isolates and uninoculated control. Identification of isolates through 16sRNA sequencing confirmed the both strains (LK-13 and LK-16) belong to Bacillus spp. Inoculation of maize seeds with rhizobacteria as plant growth promoting rhizobacteria enhanced growth and physiology of maize. So, inoculation of PGPR could be a potential approach for enhancing drought resilience in maize (Zea mays L.).

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“…In the case of Pakistan, water storage capacity per capita is only 150 m 3 while this figure is 5000, 5000, 2200 and 1545 m 3 in the United States, Australia, China and India, respectively (Imran et al, ). This decrease in surface water supplies may reduce abstraction of groundwater, thus seriously impacting agriculture (Jordán et al, ).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Aquacrop Model in Simulating Bitter Gourd Water Productivity Under Saline Irrigation

Soomro

Alaghmand

Shahid

et al. 2019

Irrigation and Drainage

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The agricultural sector, globally, faces multifaceted challenges to produce more with a minimum amount of water to enhance water productivity (WP). In this regard, crop modelling is an efficient approach for estimating WP and plays a significant role in addressing water management strategies. The present research has been conducted in Malir, Karachi—a semi‐arid region in the Sindh Province of Pakistan. The aim was to evaluate the effects of two different qualities of irrigation water including, fresh quality (IT1 0.56 dS m−1) and saline groundwater (IT2 2.89 dS m−1) on canopy cover (CC), biomass, crop yield and water productivity (WP) of bitter‐gourd. The AquaCrop model was used for the first time for bitter gourd in a semi‐arid region under drip irrigation. Simulations were carried out for two cropping seasons (i.e. season one (summer) and season two (winter). The modelled values were slightly higher than the measured biomass and yield values in both calibration and validation procedures. The performance of the AquaCrop model was estimated through different statistical indicators such as model efficiency (E), root mean square error (RMSE), and index of agreement (dindex). These indicators revealed that the model simulated bitter gourd biomass and crop yield well. In addition, the model's performance was good under all irrigation treatments, with RMSE in the range 1.2–3.7, 0.5–1.8, dindex 0.94–0.98 and E 0.93–0.97. The model also overestimated the biomass and crop yield. Overall, the AquaCrop model overestimated biomass and crop yield for both seasons. © 2019 John Wiley & Sons, Ltd.

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Assessing Yield, Water Use Efficiency and Evapotranspiration with Ameliorating Effect of Potassium in Wheat Crop Exposed to Regulated Deficit Irrigation

Cited by 7 publications

References 27 publications

Effect of Water Regime on Growth Performance of Durum Wheat (Triticum Durum Desf.) During Different Vegetative Phases

Effect of Water Regime on Growth Performance of Durum Wheat (Triticum Durum Desf.) During Different Vegetative Phases

Scrutinizing of Rhizobacterial Isolates for Improving Drought Resilience in Maize (Zea mays)

Evaluation of Aquacrop Model in Simulating Bitter Gourd Water Productivity Under Saline Irrigation

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