תפריט נגישות
ניגודיות עדינהניגודיות גבוהה
מונוכרום
הדגשת קישורים
חסימת אנימציה
פונט קריא
סגור
איפוס הגדרות נגישות
להורדת מודול נגישות חינם תפריט נגישותניגודיות עדינהניגודיות גבוההמונוכרוםהדגשת קישוריםחסימת אנימציהפונט קריאסגוראיפוס הגדרות נגישותלהורדת מודול נגישות חינםAsaf Avneria
Zvi Peleg
David Bonfil
Roy Sadeh
Omer Perach
Ittai Herrmann
Shahal Abbo
Ran N. Lati
Context: While the world population is steadily growing, the demand for plant-based protein in 3 general, and chickpea in particular, is rising. Heatwaves and terminal drought are the main abiotic 4 factors limiting chickpea yield worldwide. 5 Objective: Developing better irrigation management for the chickpea agro-system can promote 6 higher and more sustainable yields. Supplemental irrigation at the right timing and dose may 7 increase yield dramatically. 8 Methods: We studied the response of a modern Kabuli chickpea cultivar to irrigation during the 9 pod-filling period over three growing seasons (2019-2021) in northern Negev, Israel, under semi10 arid conditions. Six irrigation treatments were applied based on crop coefficients (Kc) of 0, 0.5, 11 0.7, 1.0, 1.25, and 1.4 of crop evapotranspiration (ETc) as measured by a meteorological station on 12 site. Morpho-physiological parameters and above-ground biomass accumulation were monitored 13 throughout the cropping seasons, and the final grain yield was determined at maturation. Irrigation 14 onset was determined based on the plants’ water potential (> 15 bar). 15 Results: Our results indicate that optimal water status (as reflected by pressure chamber values) 16 was in the range of 12-14 bar during the irrigation period. Irrigation according to 17 evapotranspiration (ETc) with a crop coefficient factor (Kc) of 1.25 resulted in the highest grain 18 yields over the three years. To ensure optimal water supply during the reproductive phase, one that 19 is compatible with the crop water requirements, maintaining values of 25 mm node length above 20 the Last Fully Developed Pod (LFDP) and a 90 mm distance between LFDP to the stem apex is 21 recommended. 22 Conclusions: Irrigation onset when the crop is already at mild drought stress, followed by 23 sufficient irrigation while following the indicated morphology and water potential values, may help 24 farmers optimize irrigation and maximize chickpea crop production
Asaf Avneria
Zvi Peleg
David Bonfil
Roy Sadeh
Omer Perach
Ittai Herrmann
Shahal Abbo
Ran N. Lati
Context: While the world population is steadily growing, the demand for plant-based protein in 3 general, and chickpea in particular, is rising. Heatwaves and terminal drought are the main abiotic 4 factors limiting chickpea yield worldwide. 5 Objective: Developing better irrigation management for the chickpea agro-system can promote 6 higher and more sustainable yields. Supplemental irrigation at the right timing and dose may 7 increase yield dramatically. 8 Methods: We studied the response of a modern Kabuli chickpea cultivar to irrigation during the 9 pod-filling period over three growing seasons (2019-2021) in northern Negev, Israel, under semi10 arid conditions. Six irrigation treatments were applied based on crop coefficients (Kc) of 0, 0.5, 11 0.7, 1.0, 1.25, and 1.4 of crop evapotranspiration (ETc) as measured by a meteorological station on 12 site. Morpho-physiological parameters and above-ground biomass accumulation were monitored 13 throughout the cropping seasons, and the final grain yield was determined at maturation. Irrigation 14 onset was determined based on the plants’ water potential (> 15 bar). 15 Results: Our results indicate that optimal water status (as reflected by pressure chamber values) 16 was in the range of 12-14 bar during the irrigation period. Irrigation according to 17 evapotranspiration (ETc) with a crop coefficient factor (Kc) of 1.25 resulted in the highest grain 18 yields over the three years. To ensure optimal water supply during the reproductive phase, one that 19 is compatible with the crop water requirements, maintaining values of 25 mm node length above 20 the Last Fully Developed Pod (LFDP) and a 90 mm distance between LFDP to the stem apex is 21 recommended. 22 Conclusions: Irrigation onset when the crop is already at mild drought stress, followed by 23 sufficient irrigation while following the indicated morphology and water potential values, may help 24 farmers optimize irrigation and maximize chickpea crop production
