Document Type : Research Paper - Agronomy
Authors
1 Department of Agronomy, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
2 Ph.D of Agronomy, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran
Abstract
Introduction: The agricultural sector bears the responsibility of ensuring food security through domestic production and natural resource conservation. Oilseeds are among the essential food items that require a significant amount of water. Introducing Camelina plant as a suitable alternative with characteristics compatible with unfavorable environmental conditions and low requirements for water and nutrients can serve as an effective solution for diversifying cultivation and meeting the country's oil needs.
Materials and Methods: This study was conducted to investigate the yield and yield components of Camelina under zeolite and wood vinegar application in water deficit stress conditions. The experiment was carried out in 2023 in a split-plot factorial design with three replications at the Agricultural Faculty Farm of Tarbiat Modares University. The factors examined included irrigation regimes at four levels: optimal irrigation, mild water stress, moderate water stress, and severe water stress, corresponding to 20, 40, 60, and 80 percent of available water capacity after depletion (absorption in the root zone or evaporation), followed by irrigation to field capacity. These regimes were studied in main plots, combined with two levels of zeolite application (no application and 8 tons per hectares) and four levels of wood vinegar application (0, 5000, 10000, 15000 ppm) in subplots in a factorial combination.
Results and Discussion: According to the results, it can be concluded that the use of zeolite and foliar spraying of wood vinegar in optimal irrigation conditions can have significant improvements in all the measured traits. Also, in moderate and severe irrigation conditions, these effects become more significant. But it should be noted that in severe irrigation, no significant effects of zeolite were observed, while the use of wood vinegar with a concentration of 10,000 ppm can have significant improvements in some plant characteristics, such as grain yield and harvest index. Overall, these results show that the use of zeolite and wood vinegar can be used as effective methods in improving the performance of plants, especially in low water conditions.
According to the results, it can be concluded that the use of zeolite and foliar spraying of wood vinegar in optimal irrigation conditions can have significant improvements in all the measured traits. Also, in moderate and severe irrigation conditions, these effects become more significant. But it should be noted that in severe irrigation, no significant effects of zeolite were observed, while the use of wood vinegar with a concentration of 10,000 ppm can have significant improvements in some plant characteristics, such as grain yield and harvest index. Overall, these results show that the use of zeolite and wood vinegar can be used as effective methods in improving the performance of plants, especially in low water conditions.
According to the results, it can be concluded that the use of zeolite and foliar spraying of wood vinegar in optimal irrigation conditions can have significant improvements in all the measured traits. Also, in moderate and severe irrigation conditions, these effects become more significant. But it should be noted that in severe irrigation, no significant effects of zeolite were observed, while the use of wood vinegar with a concentration of 10,000 ppm can have significant improvements in some plant characteristics, such as grain yield and harvest index. Overall, these results show that the use of zeolite and wood vinegar can be used as effective methods in improving the performance of plants, especially in low water conditions.
Conclusion: For increasing seed yield and biological yield, moderate water stress along with zeolite application is recommended as the most cost-effective treatment. In severe water stress conditions, the application of wood vinegar foliar application at 10000 ppm concentration is recommended to enhance seed yield and biological yield.
Keywords
Main Subjects
)