Micronutrient levels in malformed and healthy organs of mango.
Zora Singh, Lakhvir Singh
Author Affiliation: Department of Horticulture, Punjab Agricultural University, Ludhiana 141004, India.
Journal of Plant Nutrition 21 : 2613-2621
Abstract : The concentrations of Fe, Zn, Mn, Cu and Co in malformed and healthy panicles of mangoes (cv. Dusheri), and leaves and shoots bearing them, were determined at different developmental stages (fully swollen bud, bud inception, fully grown panicles prior to full bloom and full bloom) over 3 consecutive years in India. The concentrations of Fe, Zn, Cu, Mn and Co varied in malformed and healthy organs at different developmental stages. Malformed panicles contained lower concentrations of Fe, Zn and Cu, and higher concentrations of Mn than healthy ones. The leaves of shoots bearing malformed panicles contained higher concentrations of Fe, Mn and Cu, and lower concentrations of Zn than leaves of shoots bearing healthy panicles. Shoots bearing malformed panicles contained higher concentrations of Fe, Zn, Mn and Cu than shoots bearing malformed panicles. The concentrations of Co in healthy and malformed organs did not differ much. It was suggested that floral malformation in mango is not caused by micronutrient deficiency.