Zinc Biofortification in Sixty Groundnut Cultivars Through Foliar Application of Zinc Sulphate |
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| Authors: | A L Singh V Chaudhari |
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| Institution: | 1. Directorate of Groundnut Research, Junagadh, Indiaalsingh@nrcg.res.in;3. Directorate of Groundnut Research, Junagadh, India |
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| Abstract: | A field experiment with 60 groundnut cultivars, in a calcareous soil having 1.20 mg kg?1 available zinc (Zn), foliar application of 0.2% aqueous solution of zinc sulphate thrice at 40, 55 and 70 days at 500, 500 and 1000 L ha?1, respectively, increased the number of pods, pod yield, shelling and 100 seed mass and seed zinc (Zn) content, significantly. The seeds Zn content in groundnut cultivars ranged 38–70 mg kg?1 with an average of 48 mg kg?1 without Zn and 58 mg kg?1 with Zn. Foliar Zn application increased 22% Zn in seed. This increase was more than 10% in 48 out of 60 cultivars. The cultivars GG 7, GG 20, Tirupati 4, DH 8, JSP 19, TKG 19 A, CSMG 884 and S 206 showed > 50 mg kg?1 Zn, > 10% increase in seed Zn with Zn application and > 250 g m?2 pod yield. |
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| Keywords: | biofortification of Zn groundnut foliar Zn application Zn responsive cultivars pod yield 100-seed mass seed Zn content |
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