Effect of iron on morpho-physiological characteristic of groundnut (Arachis hypogaea L.)
DOI:
https://doi.org/10.48165/jefa.2024.19.01.7Keywords:
Groundnut, iron, chlorophyll, active Fe, peroxidase, catalaseAbstract
Iron Deficiency Chlorosis (IDC) is the most prevalent condition in calcareous soil because groundnut is sensitive to iron deficiency. The main aim was to study the morpho-physiological parameters that are associated with IDC under different sources and levels of iron (Fe) in calcareous soil for improving the yield of groundnut. A field experiment was carried out to study the effect of iron on morpho-physiological characteristic of groundnut (Arachis hypogaea L.) in calcareous soil during 2021 at Mangulam village of Mangalur block, Cuddalore district with the test crop of groundnut variety VRI 8. The 11 treatments consisted of different sources of iron viz., FeSO4, Fe-EFYM (1:10) and Fe-EDDHA and levels of iron (37.5 kg and 50 kg ha-1) and foliar application of Fe as FeSO4, Fe- EDDHA and TNAU Fe-citrate, along with recommended dose of NPK (25:50:75 NPK kg ha-1). The control did not receive iron. The results revealed that application of RDF + Fe-EFYM (1:10) @ 50 kg ha-1 + Bacillus subtilis @ 2 kg ha-1 increased chlorophyll content, active Fe concentration, peroxidase and catalase activities in the leaf of groundnut.
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