Crop Coefficient Estimation and Effect of Abscisic Acid on Red Cabbage Plants (Brassica oleracea var. Capitata) under Water-Stress Conditions

Understanding the anticipated impact of climate change on agriculture, as well water conservation, is critical to achieving food security. Therefore, during this time and due reduced resources increased demand, it important study water-stress conditions crops. Two successive seasons were carried out through 2021 2022 estimate crop coefficient (Kc) effect abscisic acid red cabbage plants (Brassica oleracea var. capitata) under at a private farm in Bilbeis region, Sharqia Governorate, Egypt. The aim was different concentrations (ABA) (0, 25, 50, 75 ppm) various irrigation levels (100, 80, 60% field capacity “FC”) growth process yield parameters plants. results revealed that average estimated for crops standard conditions, 100% FC, 0.75, 1.07, 1.2 0.88 0.77, 1.2, 1.25 0.82 Initial, Development, Mid, End stages growing seasons, respectively. Data collected both clearly showed all treatments significantly plant’s when compared control. However, (ABA, application with requirements (80% FC) statistically most effective treatment study. Hence, means savings 20% can be achieved without compromising yield.