Effects of Urea and ZnSO4 on Storage and Translocation of N and Zn in Leaf and fruit of Pomegranate cv Rabab-e-Neyriz

Document Type : Full Paper

Authors

1 Former Graduate Student, College of Agriculture, Shahid Chamran University, Ahvaz, Iran

2 Professor, College of Agriculture, Shahid Chamran University, Ahvaz, Iran

3 Professor, College of Agriculture, Shiraz University, Shiraz, Iran

4 Associate Professor, College of Agriculture, Shahid Chamran University, Ahvaz, Iran

5 Former Post Graduate Student, College of Agriculture, Shahid Chamran University, Ahvaz, Iran

Abstract

Identification and regulation of distribution of mineral nutrients between source and sink members is beneficial in improvement of growth and development of fruit trees. The aim followed in this study was an evaluation of the effects of urea and ZnSO4 on storage and translocation of nitrogen and zink in the leaf and fruits of pomegranate cv ‘Rabab-e-Neyriz’. In 2009, ZnSO4 (0.0, 0.3%, 0.6%) was sprayed on young fully expanded leaves (<20 days) while urea (0.0, 1.5%, 3%) sprayed two weeks following full bloom. A factorial experiment based on RCBD of three replications was employed and comparison of means done through Duncan Multiple Range Test at P<0.05 and P<0.01. Results revealed that urea treatments significantly decreased N content in leaf, while 3% urea increased N content in fruit peel. Both concentrations of ZnSO4 significantly increased Zn in the leaf and fruit. The higher concentration of ZnSO4, caused increased translocation of Zn between leaf (sprayed) and fruit (non-sprayed).

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History

  • Receive Date: 25 June 2012
  • Revise Date: 02 June 2014
  • Accept Date: 12 May 2013

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