Investigation of the effect of kaolin and ethanol on the flowering time of almond

Document Type : Original Article

Authors

1 Associate professor, Department of Horticulture Science, University of Mohaghegh Ardabili, Ardabil, Iran.

2 M.Sc., Department of Horticulture Science, University of Mohaghegh Ardabili, Ardabil, Iran.

3 Professor, Department of Horticulture science, University of Mohaghegh Ardabili, Ardab, Iran.

10.30466/rip.2022.53925.1209

Abstract

In order to study the effect of foliar application of different levels of kaolin and ethanol on the flowering time of almond, this experiment was conducted as a factorial based on a randomized complete block design (RCBD). Treatments included four levels of kaolin (0, 2, 4, and 6%) and four levels of ethanol (0, 0.5, 1, and 1.5 L/1000 L) applied to almond trees of the Shokoufeh cultivar in Garmi City, Ardabil Province, during 2017-2018. In this research, phenological traits including time of bud swell, bud formation stage, flowering time, time of full bloom, and end of flowering time, as well as biochemical traits such as total phenol content, relative water content, proline content of bud tissue, and cell membrane stability were measured. The results of mean comparisons showed that application of ethanol delayed indices such as time of bud swell, bud formation stage, flowering time, time of full bloom, and end of flowering time in almond. Application of kaolin alone delayed only the time of bud swell and bud formation stage. The interaction of these treatments increased the proline content in flower buds. Based on the results of this experiment, the treatment combination of 1.5 L/1000 L ethanol and 6% kaolin was identified as the best treatment, causing a delay of 5 to 14 days in the swelling and opening of almond flower buds.

Keywords

References

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Research in Pomology
Volume 8, Issue 1 - Serial Number 1
August 2023
Pages 121-129

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