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 חינםAharon, S. - The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, 7610001, Israel; Department of Plant Pathology and Weed Research, Agricultural Research Organization (ARO)-Newe Ya'ar Research Center, Ramat Yishay, 30095, Israel.
Fadida-Myers, A. - The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, 7610001, Israel; Institute of Plant Sciences, Agricultural Research Organization (ARO)-Volcani Center, Rishon LeZion, 7528809, Israel.
Nashef, K. - Institute of Plant Sciences, Agricultural Research Organization (ARO)-Volcani Center, Rishon LeZion, 7528809, Israel
Ben-David, R. - Institute of Plant Sciences, Agricultural Research Organization (ARO)-Volcani Center, Rishon LeZion, 7528809, Israel
Lati, R.N. - Department of Plant Pathology and Weed Research, Agricultural Research Organization (ARO)-Newe Ya'ar Research Center, Ramat Yishay, 30095, Israel
Peleg, Z. - The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, 7610001, Israel
Chemical weed-control is the most effective practice for wheat, however, rapid evolution of herbicide-resistant weeds threat food-security and calls for integration of non-chemical practices. We hypothesis that integration of alternative GA-responsive dwarfing genes into elite wheat cultivars can promote early vigor and weed-competitiveness under Mediterranean climate. We develop near-isogenic lines of bread wheat cultivars with GAR dwarfing genes and evaluate them for early vigor and weed-competitiveness under various environmental and management conditions to identify promising NIL for weed-competitiveness and grain yield. While all seven NILs responded to external gibberellic acid application, they exhibited differences in early vigor. Greenhouse and field evaluations highlighted NIL OC1 (Rht8andRht12) as a promising line, with significant advantage in canopy early vigor over its parental. To facilitate accurate and continuous early vigor data collection, we applied non-destructive image-based phenotyping approaches which offers non-expensive and end-user friendly solution for selection. NIL OC1 was tested under different weed density level, infestation waves, and temperatures and highlight the complex genotypic × environmental × management interactions. Our findings demonstrate the potential of genetic modification of dwarfing genes as promising approach to improve weed-competitiveness, and serve as basis for future breeding efforts to support sustainable wheat production under semi-arid Mediterranean climate.
Aharon, S. - The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, 7610001, Israel; Department of Plant Pathology and Weed Research, Agricultural Research Organization (ARO)-Newe Ya'ar Research Center, Ramat Yishay, 30095, Israel.
Fadida-Myers, A. - The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, 7610001, Israel; Institute of Plant Sciences, Agricultural Research Organization (ARO)-Volcani Center, Rishon LeZion, 7528809, Israel.
Nashef, K. - Institute of Plant Sciences, Agricultural Research Organization (ARO)-Volcani Center, Rishon LeZion, 7528809, Israel
Ben-David, R. - Institute of Plant Sciences, Agricultural Research Organization (ARO)-Volcani Center, Rishon LeZion, 7528809, Israel
Lati, R.N. - Department of Plant Pathology and Weed Research, Agricultural Research Organization (ARO)-Newe Ya'ar Research Center, Ramat Yishay, 30095, Israel
Peleg, Z. - The Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot, 7610001, Israel
Chemical weed-control is the most effective practice for wheat, however, rapid evolution of herbicide-resistant weeds threat food-security and calls for integration of non-chemical practices. We hypothesis that integration of alternative GA-responsive dwarfing genes into elite wheat cultivars can promote early vigor and weed-competitiveness under Mediterranean climate. We develop near-isogenic lines of bread wheat cultivars with GAR dwarfing genes and evaluate them for early vigor and weed-competitiveness under various environmental and management conditions to identify promising NIL for weed-competitiveness and grain yield. While all seven NILs responded to external gibberellic acid application, they exhibited differences in early vigor. Greenhouse and field evaluations highlighted NIL OC1 (Rht8andRht12) as a promising line, with significant advantage in canopy early vigor over its parental. To facilitate accurate and continuous early vigor data collection, we applied non-destructive image-based phenotyping approaches which offers non-expensive and end-user friendly solution for selection. NIL OC1 was tested under different weed density level, infestation waves, and temperatures and highlight the complex genotypic × environmental × management interactions. Our findings demonstrate the potential of genetic modification of dwarfing genes as promising approach to improve weed-competitiveness, and serve as basis for future breeding efforts to support sustainable wheat production under semi-arid Mediterranean climate.
