Abstract:Water scarcity is one of the main abiotic factors that limit agricultural production. In this sense, the identification of genotypes tolerant to water deficit associated with irrigation management strategies is extremely important. In this context, the objective of this study was to evaluate the morphology, production, water consumption, and water use efficiency of colored fiber cotton genotypes submitted to irrigation strategies with a water deficit in the phenological phases. Two experiments were conducted i… Show more
“…Although the effects of a regulated deficit irrigation on crops has been studied, the results were limited [18,19,37]. There was still a need to improve the applicability of RDI in arid areas.…”
Section: Discussionmentioning
confidence: 99%
“…The results of this study would help to improve the implementation and application of this water-saving technology. Although the effects of a regulated deficit irrigation on crops has been studied, the results were limited [18,19,37]. There was still a need to improve the applicability of RDI in arid areas.…”
Section: Discussionmentioning
confidence: 99%
“…Furthermore, it is crucial to adopt appropriate irrigation strategies and optimize the yield with respect to available water quantity for production under conditions of water scarcity [37,52]. To further explore the possibility of reducing irrigation costs and to promote sustainable agricultural development, the irrigation times and amount during the flowering and boll setting stage were studied by using the DSSAT model.…”
With the changing global climate, drought stress will pose a considerable challenge to the sustainable development of agriculture in arid regions. The objective of this study was to explore the resistance and water demand of cotton plants to water stress during the flowering and boll setting stage. The experimental plot was in Huaxing Farm of Changji city. The plots were irrigated, respectively, at 100% (as the control), 90%, 85% and 80% of the general irrigation amount in the local area. The relationship between the various measured indexes and final yield under different deficit irrigation (DI) treatments was studied. The results showed that deficit irrigation impacted the growth and development processes of cotton during the flowering and boll setting stage. There was a high negative correlation (R2 > 0.95) between the maximum leaf area index and yield. Similarly, there was a high correlation between malondialdehyde content and yield. Meanwhile, 90% of the local cotton irrigation contributed to water saving and even increasing cotton yield. Furthermore, based on the results, the study made an initial optimization to the local irrigation scheme by utilizing the DSSAT model. It was found that changing the irrigation interval to 12 days during the stage could further enhance cotton yield and conserve resources.
“…Although the effects of a regulated deficit irrigation on crops has been studied, the results were limited [18,19,37]. There was still a need to improve the applicability of RDI in arid areas.…”
Section: Discussionmentioning
confidence: 99%
“…The results of this study would help to improve the implementation and application of this water-saving technology. Although the effects of a regulated deficit irrigation on crops has been studied, the results were limited [18,19,37]. There was still a need to improve the applicability of RDI in arid areas.…”
Section: Discussionmentioning
confidence: 99%
“…Furthermore, it is crucial to adopt appropriate irrigation strategies and optimize the yield with respect to available water quantity for production under conditions of water scarcity [37,52]. To further explore the possibility of reducing irrigation costs and to promote sustainable agricultural development, the irrigation times and amount during the flowering and boll setting stage were studied by using the DSSAT model.…”
With the changing global climate, drought stress will pose a considerable challenge to the sustainable development of agriculture in arid regions. The objective of this study was to explore the resistance and water demand of cotton plants to water stress during the flowering and boll setting stage. The experimental plot was in Huaxing Farm of Changji city. The plots were irrigated, respectively, at 100% (as the control), 90%, 85% and 80% of the general irrigation amount in the local area. The relationship between the various measured indexes and final yield under different deficit irrigation (DI) treatments was studied. The results showed that deficit irrigation impacted the growth and development processes of cotton during the flowering and boll setting stage. There was a high negative correlation (R2 > 0.95) between the maximum leaf area index and yield. Similarly, there was a high correlation between malondialdehyde content and yield. Meanwhile, 90% of the local cotton irrigation contributed to water saving and even increasing cotton yield. Furthermore, based on the results, the study made an initial optimization to the local irrigation scheme by utilizing the DSSAT model. It was found that changing the irrigation interval to 12 days during the stage could further enhance cotton yield and conserve resources.
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