Effects of various poppy seed pre-sowing treatments on the dynamics of field emergence, structure of yield parameters, oil content and yield of seed
2022
Matěj Satranský | Ivana Capouchová | Barbora Burešová | Pavel Procházka
The effects of various pre-sowing treatments of poppy seed (chemical product Cruiser OSR, stimulation products TS Osivo and Enviseed, physical treatment by E-ventus method, biological products Polyversum and Gliorex) on dynamics of field emergence, seed yield, and structure of yield parameters were evaluated in two cultivars grown in three-year trials. Seed treatment with TS Osivo and Enviseed led to a significant increase in field emergence compared to the untreated control and was on the same level as the Cruiser OSR-treated variant. In variants treated with Polyversum, Gliorex, and E-ventus, the number of emerged plants was noticeably lower. The stand density was a key factor in achieving a satisfactory yield, given that in the structure of other yield parameters (number of capsules per plant, weight of seed per capsule, and thousand seed weight), the differences between the variants were lower and often insignificant. The average yield ranged from 0.85 t/ha (Polyversum) to 1.39 t/ha (Cruiser OSR), and the stimulant seed treatments were also proved to be effective (TS Osivo 1.23 t/ha and Enviseed 1.16 t/ha). Variants with biological and physical treatment did not differ significantly from the control (0.88 t/ha) in average yield. All parameters evaluated were strongly affected by the year (weather conditions).
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