Effect of water stress at three growth stages on the yield and water-use efficiency of dwarf wheat

Singh, T. N.; Malik, D. S.

doi:10.1007/bf00389646

Cited by 27 publications

(10 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The rate of germination decrease is significant under water stress of −0.4 MPa. In the case of sensitive genotypes of wheat, diminished germination has been recorded even at −0.1 MPa (Singh et al, 1986). Under water deficit conditions, development is additionally connected with ATP (adenosine triphosphate) levels in the cells since establishment of seedling requires energy for the anabolism in the seed.…”

Section: Germination and Stand Establishmentmentioning

confidence: 99%

Growth and developmental responses of crop plants under drought stress: a review

Anjum¹,

Ashraf

Zohaib³

et al. 2017

Zemdirbyste-Agriculture

185

106

View full text Add to dashboard Cite

Please use the following format when citing the article: Anjum S. A., Ashraf U., Zohaib A., Tanveer M., Naeem M., Ali I., Nazir U., Tabassum T. AbstractWater deficit conditions are a bearing on plant growth and development leading to diminished crop productivity. However, improving the crop productivity is need of the time to sustain the food security under ever increasing world population. Drought episodes are increasing with varying intensity and duration. Drought stress imposes alterations in crucial plant growth and developmental processes, including germination, plant height, stem diameter, number of leaves, leaf size and area, dry matter production and partitioning, flower and fruit production, and maturity. Nonetheless, plants show some morphological changes to cope with drought stress by lowering water loss, enhanced water uptake and maintenance of tissue water status. Some plants complete their life cycle early before the onset of drought to escape water deficit conditions. Identification of effects of drought stress on morphological attributes and morphological changes in response to drought can be promising for selection and breeding of drought resistant genotypes.

show abstract

Section: Germination and Stand Establishmentmentioning

confidence: 99%

Growth and developmental responses of crop plants under drought stress: a review

Anjum¹,

Ashraf

Zohaib³

et al. 2017

Zemdirbyste-Agriculture

185

106

View full text Add to dashboard Cite

show abstract

“…Internationally, maximum wheat grain WUE (kg (ha mm) À1 ) under water-scarcity conditions was reported as 22.0, and the average was 9.9 for south-eastern Australia, 9.8 for the China Loess Plateau, 8.9 for the northern Great Plains of North America, 7.6 for the Mediterranean Basin and 5.3 for the southern-central Great Plains (Sadras and Angus, 2006). Comparing water stress and non-stress conditions WUE (kg(ha mm) À1 ), there are reports of 6-19 for Texas, USA, 8-10 for northern Syria and 11.2-13.9 for dwarf wheat for Hissar, Haryana, India (Musick and Porter, 1990;Oweis and Hachum, 2001;Singh and Malik, 1983).…”

Section: The Model Evaluationmentioning

confidence: 95%

Perceptive research on wheat evapotranspiration in Pakistan

Laghari

Lashari

Memon

2008

Irrigation and Drainage

View full text Add to dashboard Cite

The Mehran model is developed based on the FAO-56 modified Penman-Monteith equation for computing reference and crop evapotranspiration with dual crop coefficients. Evapotranspiration (ET) of wheat in three field experiments with management-allowed depletion (MAD) of 45, 55 and 65% was observed through gypsum block readings and a drainage lysimeter. The seasonal crop ETs were observed as 363, 359 and 332 mm, and were computed as 383, 369 and 355 mm. The corresponding water use efficiencies (WUEs) were ascertained as 14.1, 15.0 and 13.4 kg (ha mm)À1 . The highest crop WUE was achieved with MAD at 55%; therefore, this research is more focused upon in the paper. The model relatively overestimated seasonal ET by 2.8%. Weekly root length and daily soil-moisture measurements revealed that wheat extracts most of its moisture from the 0-50 cm soil profile. When practising either scientific or traditional irrigation scheduling in the country, a seasonal water amount of 370 mm is suggested for wheat to achieve optimum yield and WUE.Statistical analysis (R 2 ¼ 0.90, T ¼ 2.09, and F ¼ 999) showed good correlation between computed and actual seasonal ETs of crop with an experimental MAD of 55%. The Mehran model is found to be quite versatile and can be successfully used as a decision support system (DSS) for irrigation scheduling of wheat in Pakistan. L'analyse statistique (R 2 ¼ 0.90, T ¼ 2.09, et F ¼ 999) a montré la bonne corrélation entre l'évapotranspiration saisonnière calculée et réellement mesurée pour une irrigation rationnée à 55%. Le modèle de Mehran apparaît tout à fait souple et peut être employé avec succès en tant que système interactif d'aide à la décision pour le pilotage de l'irrigation du blé au Pakistan.

show abstract

“…Water stress results in altered plant development, yield, and quality and occurs when water supply (rainfall or irrigation plus stored soil moisture) does not meet plant water demands. Consequently, the ultimate impact is dependent on the duration and severity of the stress event, as well as the developmental stage of the plants (Fischer and Maurer, 1978;Choudhury and Kumar, 1980;Singh and Malik, 1983;Dolferus et al, 2011). Therefore, as significant yield and quality losses are encountered under water stress, breeding for improved tolerance to water stress in crop varieties is vital.…”

Section: Notementioning

confidence: 99%

Automated Rainout Shelter's Design for Well‐Defined Water Stress Field Phenotyping of Crop Plants

et al. 2017

View full text Add to dashboard Cite

Field phenotyping to identify water stress‐tolerant crop genotypes is challenging due to uncertainty in the timing of rainfall. Rainout shelters offer a way of establishing controlled water stress environments by excluding untimely rain events. Here, we present a detailed description of custom‐designed rainout shelters. These shelters are fully automated and portable. The rainout shelters were constructed from steel arch frames and polyethylene cladding, which move on plastic road barriers. The three connected shelters, each 20 × 10 m, are rain sensor activated, solar powered and equipped with a motion sensor camera for remote monitoring. These rainout shelters have proven to be effective tools for field water stress phenotyping.

show abstract

Effect of water stress at three growth stages on the yield and water-use efficiency of dwarf wheat

Cited by 27 publications

References 11 publications

Growth and developmental responses of crop plants under drought stress: a review

Growth and developmental responses of crop plants under drought stress: a review

Perceptive research on wheat evapotranspiration in Pakistan

Automated Rainout Shelter's Design for Well‐Defined Water Stress Field Phenotyping of Crop Plants

Contact Info

Product

Resources

About