Effects of water stress at different development stages on yield and water productivity of winter and summer safflower (Carthamus tinctorius L.)

İstanbulluoğlu, A.; Göçmen, Erhan; Gezer, Erhan; Pasa, C.; Konukcu, Fatih

doi:10.1016/j.agwat.2009.04.004

Cited by 49 publications

(29 citation statements)

References 9 publications

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“…Istanbulluoglu et al (2009) andLovelli et al (2007) reported an increase in water use efficiency in safflower under water deficit compared to the irrigated treatment. Singh et al (2016b) also observed an increase in water use efficiency after a period of drought stress with no improvement in yield with excessive irrigation.…”

Section: Discussionmentioning

confidence: 99%

Physiological response and productivity of safflower lines under water deficit and rehydration

Bortolheiro

Silva

2017

An. Acad. Bras. Ciênc.

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Water deficit is one of the major stresses affecting plant growth and productivity worldwide. Plants induce various morphological, physiological, biochemical and molecular changes to adapt to the changing environment. Safflower (Carthamus tinctorius L.), a potential oil producer, is highly adaptable to various environmental conditions, such as lack of rainfall and temperatures. The objective of this work was to study the physiological and production characteristics of six safflower lines in response to water deficit followed by rehydration. The experiment was conducted in a protected environment and consisted of 30 days of water deficit followed by 18 days of rehydration. A differential response in terms of photosynthetic pigments, electrolyte leakage, water potential, relative water content, grain yield, oil content, oil yield and water use efficiency was observed in the six lines under water stress. Lines IMA 04, IMA 10, IMA 14 showed physiological characteristics of drought tolerance, with IMA 14 and IMA 16 being the most productive after water deficit. IMA 02 and IMA 21 lines displayed intermediate characteristics of drought tolerance. It was concluded that the lines responded differently to water deficit stress, showing considerable genetic variation and influence to the environment.

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Section: Discussionmentioning

confidence: 99%

Physiological response and productivity of safflower lines under water deficit and rehydration

Bortolheiro

Silva

2017

An. Acad. Bras. Ciênc.

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“…Surface runoff was assumed to be negligible because there have not been intense rainfall events such as to cause run-off. Drainage below the root zone was assumed zero, since water applied with each irrigation plus rainfall amounts were not sufficient to bring the soil moisture level over the field capacity within the root zone during the growing season (Istanbulluoglu et al, 2009;El-Hendawy and Schmidhalter, 2010). With the exception of I0, in the second year the irrigation volumes were always higher with respect to the first year ( Table 2).…”

Section: Irrigation Regimesmentioning

confidence: 99%

Water saving strategies assessment on processing tomato cultivated in Mediterranean region

et al. 2016

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Processing tomato grown in Mediterranean region required high irrigation volume throughout growing season. A two-year study was carried out in order to investigate the effects of deficit irrigation (DI) and regulated deficit irrigation (RDI) on processing tomato cultivated under sub-arid conditions. A comparison between the irrigation management linked to common practice adopted by farmer and the irrigation management based on crop evapotranspiration (ETc) demand was also done. The tomato cv. Genius F1 was cultivated under five water regimes: minimal irrigation (I0), as irrigation only at transplanting and during fertilising; DI, to restore 60% ETc; RDI, to restore 60%-80%-60% ETc across the three main tomato phenological stages; full irrigation (FI), to restore 100% ETc; and farmer irrigation (FaI), as irrigation following the subjective farmer method. Compared to FI, under the FaI regime, the seasonal irrigation volume was 31% and 26% higher in the 2009 and 2010, respectively, with not significant yield increase between the two water regimes. Among the irrigation regimes, only the RDI showed similar yield values over the two years, although 2010 was climatically less favourable. For the water use efficiency related to the marketable yield (WUEy), among the irrigation regimes, RDI showed the higher value together with FI. Finally, the Ky was 0.91, which indicates moderate water stress tolerance for processing tomato cultivated in Mediterranean regions. In conclusion, the data obtained in the present study demonstrate that in Southern Italy the irrigation planning followed by the farmer does not follow the principles of sustainable irrigation. Moreover, with the adoption of the RDI strategy, it is possible to save about 27% of water maintaining high WUEy value with an increase of fruit quality. The adoption of this regime could be suggested in processing tomato cultivated under Mediterranean climate saving water in both the vegetative and ripening periods.

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“…Surface runoff was assumed to be negligible because there were no intense rainfall events to cause run-off. Drainage below the root zone was assumed negligible, since water applied with each irrigation was equal to water deficit in 0-0.6 m soil profile of the full irrigated treatment and rainfall amounts were not sufficient to bring the soil moisture level over the field capacity within the root zone during the growing season [39,40]. Finally, the difference between soil water content values at planting and at harvesting was also negligible.…”

Section: Irrigation Treatments and Crop Managementmentioning

confidence: 99%

Deficit Irrigation and Partial Root-Zone Drying Techniques in Processing Tomato Cultivated under Mediterranean Climate Conditions

et al. 2017

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Due to climate change, the application of water saving strategies is of particular interest. The aim of this study was to evaluate the effects of deficit irrigation (DI) and partial root-zone drying (PRD) techniques on the crop water stress index (CWSI), water use efficiency (WUE), and quality parameters in processing tomatoes grown in open field conditions in a Mediterranean climate. Two cultivars were grown for two growing seasons under four irrigation regimes as follows: (i) IR 100 : full irrigation by restoring 100% of the maximum tomato evapotranspiration (ET c ); (ii) IR 70DI : 70% of the amount of water given to the IR 100 ; (iii) IR 70PRD : 70% of the amount of water given to the IR 100 by applying partial root-zone drying and (iv) IR 0 : irrigation only at transplanting and during fertigation. During the flowering period, the first growing season was characterized by an absence of rainfall and by higher temperatures also showing a higher CWSI. Despite, under IR 70PRD , the CWSI was significantly higher than under IR 70DI , the marketable yield obtained was significantly higher. Both IR 70DI and IR 70PRD regimes received approximately 24% less water than IR 100 , but the yield reduction with relation to the optimum regime was equal to 16.2% under IR 70DI , and only 7.6% under IR 70PRD . The WUE increment of IR 70PRD with respect to IR 100 was equal to 27% in the first growing season and to 17% in the second one, showing that the positive effect of PRD on the WUE is more evident in the more stressed year. Finally, the results from the principal component analysis (PCA) showed that the two cultivars had different qualitative responses in the two extreme regimes (IR 100 and IR 0 ) but not under PRD and DI regimes.

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Effects of water stress at different development stages on yield and water productivity of winter and summer safflower (Carthamus tinctorius L.)

Cited by 49 publications

References 9 publications

Physiological response and productivity of safflower lines under water deficit and rehydration

Physiological response and productivity of safflower lines under water deficit and rehydration

Water saving strategies assessment on processing tomato cultivated in Mediterranean region

Deficit Irrigation and Partial Root-Zone Drying Techniques in Processing Tomato Cultivated under Mediterranean Climate Conditions

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