Evaluation Effective Traits on Crop Production of Breed Wheat under Warm and Dry Climate Condition (Khuzestan Province, Southwest of Iran)

BACKGROUND: Knowing about seed yield and its components plays an important role for being successful in evaluative programs. For optimization of crop production, sowing at the appropriate time to fit the cultivar maturity length and growing season is critical. OBJECTIVES: Current study was done to assess the effect of different planting date and density on seed yield, its components and harvest index of breed Wheat. METHODS: This research was carried out via split plot experiment based on randomized complete blocks design with three replications. The treatments included four planting dates (November 6th and 21st, December 6th and 21st) and different density (300, 400, 500, 600 and 700 seed per square meter). RESULT: According result of analysis of variance effect of planting date, density and interaction effect of treatments on all measured traits (instead number of seed per spikelet) was significant. Delay in planting caused the number of spikes per m2, number of seeds per spike, 1000-seed weight and seed yield from 493.3 spikes, 46.2 seeds, 32.2 grams and 6964 kg.ha-1 on the planting date of 30 November to 493.3 spikes, 40 seeds, 28.5 grams, 4831.6 kg.ha-1 should be reduced on 30 December. Assessment mean comparison result of interaction effect of treatments indicated maximum seed yield (7298.7 kg.ha-1) was noted for 6 Nov. and 500 plant per m2 and lowest one (4235.2 kg.ha-1) belonged to 6 Dec. and 700 plant per m2 treatment. CONCLUSION: Generally based on result of current research planting date in domain sixth until twenty-first of November with density of 500 plants per m2 had the highest crop production and it can advise to farmers under studied region.