Impact of Depth Seed Placement of Amaranthus spp. in the Soil to Their Dormancy and Germination
Ключови думи :
Amaranthus; dormancy; germinationАбстракт
It was tested the impact of depth seed placement to the dormancy and germination of Amaranthus retroflexus L. and Amaranthus hybridus L. seeds. Field germination, laboratory germination and the number of germinated seeds were tested after treatment with growth regulator based on Omami method. It has been found that Amaranthus spp. dormancy of both species does not break and germination is not reported in soil depth – 2.5 cm, 5 cm, 10 cm, 20 cm and 30 cm. They keep dormancy which is precondition for weed infestation with that species. Compared with common, the hybrid has higher laboratory germination. It was statisticaly demonstrated that the depth of seed placement 20 – 30 cm compared with 2.5 – 5 cm, the laboratory germination ranges are from 32.4% to 43.8%.
Литература (библиография)
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Omami, E. et al. 1999. Changes in germinability, dormancy and viability of Amaranthus retroflexus as affected by depth and duration of burial. Weed Research, vol. 39, 345-354
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