Author(s):

Rahul Pippal, Lekhi R, Barholia AK, Swetal Rana and Payal Rana

Abstract: The present investigation on Guava (<em>Psidium guajava</em> L.) cv. G-27 was conducted during the year 2013-14 and 2014-15. Foliar spray of zinc,<strong> </strong>boron and magnesium was done as Zn₁= Zinc sulphat @ 0.25%; Zn₂ = Zinc sulphat @ 0.50%; Zn₃= Zinc sulphat @ 0.75%; Bo₁= Boric acid @ 0.1%; Bo₂= Boric acid @ 0.2%; Bo₃= Boric acid @ 0.3%; Mg₁= Magnesium sulphat @ 0.20%; Mg₂= Magnesium sulphat @ 0.40%; Mg₃= Magnesium sulphat @ 0.60%. The result showed that Zn₃ recorded On the basis of results obtained in present investigation. It was found that foliar spray of zinc,<strong> </strong>boron and magnesium had significantly improved the various yield attributing parameters of guava. From the different concentration Zn_3,B₃andMg₃recorded yield of 75.04 kg plant^-1, 71.94 kg plant^-1 and 74.9 kg plant^-1, respectively against 46.75 kg plant^-1 in control. Diameter of fruit, 7.07 cm, 6.85 cm and 7.07 cm in Zn_3,B₃andMg₃,respectively against 5.83 cm in control and maximum no. of fruit plant^-1of 682.05, 648.82 and 681.53 in Zn_3,B₃andMg₃,respectively against 458.48 in control. These results are on pooled basis of 2013-14 and 2014-15.

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