Influence of duration of storage and pre-sowing electromagnetic treatment on the development of the primary root system of cotton seeds

M. Koleva*, M. Radevska Field Crops Institute, 6200 Chirpan, Bulgaria (Manuscript received 14 August 2021; accepted for publication 26 October 2021) Abstract. Seeds of five Bulgarian cotton varieties, stored for one and two years, were subjected to five pre-sowing electromagnetic trea
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