The effect of harvesting time and drying method on seed physiological quality, soluble sugars content of faba bean seeds (Vicia faba L.) cultivar Shami

Document Type : Research Paper

Authors

1 M.Sc. Student, Faculty of Agriculture, Yasouj University, Iran

2 Assistant Professor, Faculty of Agriculture, Yasouj University, Iran

3 Associate Professor, Faculty of Agriculture, Yasouj University, Iran

Abstract

To evaluate the effect of harvesting time and drying methods on seed quality of faba bean, a three factors experiment was conducted based on completely randomized design with five replications at laboratory of seed science and technology, Yasouj University, in 2014. Experimental factors were as; harvesting in three dates after sowing (DAS) including 84 (first harvest), 96 (second harvest) and 108 (third harvest) DAS; three organ harvesting types (seed, pod and bushes); and two drying methods; shade-dried (SHD) and sun-dried (SD). In addition, an extra harvest (fourth harvest) was done 125 DAS according to the conventional harvest of local farmers. The results showed that in the first harvest, the highest and lowest 100-seed weight, germination percentage, germination rate, soluble sugars content, seedling vigor index were observed in the SHD bushes and SD seed treatments, respectively. A similar trend was observed in the second harvest. In this stage quantity of measured characteristics was increased. In the third harvest, these characteristics reached their maximum value and the SHD bushes treatment had significantly higher values compared to other treatments in terms of most measured characteristics. However, in all three harvesting time, electrolyte leakage and abnormal seedlings values showed different trend compared to other studied characteristics. Generally, results confirmed the role of soluble sugars in desiccation tolerance process and germinability promotion of faba bean seeds and therefore it can be suggested as biochemical index for evaluating seeds quality in this plant.

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References

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Iranian Journal of Field Crop Science
Volume 48, Issue 2 - Serial Number 2
September 2017
Pages 493-506

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History

  • Receive Date: 28 May 2016
  • Revise Date: 22 August 2016
  • Accept Date: 23 August 2016
  • Publish Date: 23 August 2017

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