Document Type : Articles
Authors
Horticulture and Landscape Design, College of Agriculture, University of Tikrit, Salah Al-Din, Iraq
Abstract
The experiment was conducted at the Department of Horticulture and Landscape at the College of Agriculture, Tikrit University, during fall of 2022. The aim was to investigate the effects of three factors on growth and flowering attributes of Senna surattensis. The first factor represented three drip irrigation methods full irrigation (FI) 100% on both sides, deficit irrigation (50%) on one side, and partial root-zone drying (PRD) with a 50% rate. The second factor involved adding hydrogel polymers SWT (soil water trap) at three levels 5 g plant-1, 10 g plant-1, well as without polymers. The third factor NPK fertilizer (12:12:36), applied 10 g plant-1 and without fertilizer. The randomized complete block design was used in this study. Data of number of vegetative branches, number of floral branches, plant height, weight of inflorescence, and total chlorophyll content were collected. The findings demonstrated that each treatments of (FI), 10 g plant-1 NPK fertilizer, and 10 g plant-1 polymer application had significant influences on the number of vegetative, and floral branches, plant height, inflorescence weight, and total chlorophyll content compared to rest of the treatments. The results also showed that interactions between (FI) and each of 10 g plant-1 polymer, 10 g plant-1 NPK were significant compared to others.
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