The Effect of Planting Arrangement, Phosphorus and Nitrogen on Physiological Traits and Guar Yield (Cyamopsis tetragonoloba L.)

Background: The guar, known as Cyamopsis tetragonoloba L., is an annual, summer plant of the legume family and importance guar a food, industrial medicinal product new in cultivation pattern. Methods: This combined experiment was conducted factorial based on randomized complete block design with three replications during two consecutive years (2020-2021) under climatic conditions Jiroft area (Kerman province, Iran) farm research center agricultural natural resources education. Three levels Nitrogen (20, 60 100 kg pure nitrogen per hectare) from source urea phosphorus fertilizer at (zero 75 P2O5 monopotassium phosphate planting row spacing (30, 45 cm) equivalent to 47, 31 24 plants square meter, density taken into account. Result: highest chlorophyll (2.69 mg/fresh weight), b (1.97 weight) carotenoid (2.64 measured for treatment N3P2D3 application kg/ha-1 + distance cm, while lowest (1.85 (1.25 (1.72 weight)was observed N1P1D1 20 zero 30 cm.