Evaluation of Methods in Seed Dormancy of Daturea (Daturea Stramonium L.)

خاتمی, سیده آسیه and آل ابراهیم, محمدتقی and بابایی قاقلستانی, علی Evaluation of Methods in Seed Dormancy of Daturea (Daturea Stramonium L.). In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

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Abstract

Seed dormancy helps survival and distribution of seeds in inappropriate environmental and climatic conditions and allow seeds to grow under appropriate conditions. For this reason, an experiment was conducted in a laboratory of Agricultural College, Mohaghegh Ardebili, in 2019, on completely randomized design with 3 replications. And the affects of different treatments were investigated on breaking the dormancy of seeds. Treatments include hot water treatment (1, 5 and 10 minutes), chilling (1, 2, 3 and 4 weeks) and control. The results showed that the highest germination percentage and germination rate were obtained in 4 weeks chilling treatment and the lowest germination percentage and germination rate were observed in the control. The percentage germination in 4 weeks chilling treatment increased by 50% compared to control. The length of seedling was 6.6 cm in chilling treatment with 48% increasing compared to control. The highest fresh weight of seedlings was in 4 weeks chilling treatment. The results showed that among treatments, 4 weeks chilling treatments had the highest rates for all traits .

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