ارزیابی شاخص های زراعی و عملکرد اسانس دو رقم گیاه دارویی ریحان (Ocimum basilicum L.) تحت تاثیر تراکم و آرایش کاشت

In order to evaluate of agronomic indices and essence yield of two basil (Ocimum basilicum L.) varieties as affected by planting pattern and plant density, a field experiment was carried out in factorial arrangement based on randomized complete block design with three replications. Two varieties (green and purple) of basil, two planting patterns (single and double row) and four plant densities (40, 60, 80 and 100 per m2) comprised experimental factors. Results showed that the highest number of spike (14.33) and pod number per plant (45) were obtained in green basil variety, double row planting pattern and density of 40 plants per m2. Also, the highest seed yield (2920 kg/ha) was observed in green basil variety, double row planting pattern and density of 100 plants per m2. The interaction between purple basil variety * double row planting pattern * 40 plants per m2 showed the greatest essence yield (54.56 kg/ha). The lowest number of spike (9.33) and pod number per plant (22.33) was observed in purple basil variety, single and double row planting pattern and density of 100 plants per m2. Results showed that with increment of plant density per unit area and decrement of row spacing, essence content and essence yield decreased.