The effect of burial depth, duration and storage temperature of roots Acroptilon repens) on their survival and regrowth

Articles in Press

Document Type : Research Paper

Authors

1 Department of Plant Genetics and Production Engineering, Faculty of Agriculture and Natural Resources, Mohaghegh Ardabili University, Iran

2 Professor, Department of Plant Genetics and Production Engineering, Faculty of Agriculture and Natural Resources, Mohaghegh Ardabili University, Iran

Abstract

Knowledge of biology and development of vegetative organs of perennial weeds is an important step in their successful management. For this purpose, two separate experiments were conducted to investigate effect of burial depth, duration and storage temperature of Acroptilon repens roots on their survival and germination characteristics in the weed science laboratory of Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili in 2021. Factours included root length (3, 6 and 12 cm), storage temperature (5, 10 and 20 degrees minus), duration of storage at each temperature (7, 14 and 30 days) and their burial depth (5, 10 and 20 cm). The results showed that decreasing of the storage temperature, the rate of deterioration of the roots increased significantly. So that exposing the roots to low temperatures (10 and 20 in the negative) in all three storage periods (7, 14 and 30 days) led to their complete destruction. Number of new plants and their dry weight was affected by root length and burial depth. With increase of root size from 3 to 12 cm, the number of new plants its increased by 3 and 5 times, respectively. Regardless of root size, increasing burial depth reduced all studied traits by 85%. Increasing the depth of burial affected the survival of Acroptilon repens roots, and organs that were small had less chance to appear at lower depths.

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Iranian Journal of Weed Science

Articles in Press, Accepted Manuscript
Available Online from 05 November 2024

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