Abstract:

The present investigations on “Effect of foliar application of micronutrients on growth, yield and fruit quality of Guava (Psidium guajava L.) cv. Shweta” were conducted at the experimental farm of Mata Gujri College, Fatehgarh Sahib, Punjab, during 2021-2023. Experiments were laid out in “Randomised Block Design (RBD) with eight treatments viz. T1 -ZnSO4@0.1%, T2     -FeSO4@0.2%, T3   -Borax@0.3%, T4  - ZnSO4@0.1% + FeSO4@0.2%, T5 -ZnSO4@0.1%+ Borax@0.3%, T6 -FeSO4@0.2%+Borax@0.3%, T7- ZnSO4@0.1%+FeSO4@0.2%+ Borax@0.3%, T8-Control.The maximum growth parameters viz., plant height(cm),stem girth(cm),tree spread  E-W(m),tree spread N-S (m) were reported with the application of T7 (ZnSO4 @0.1% + FeSO4 @0.2 % + Borax 0.3%) which was at par with the application of T6 (FeSO4 @0.2% + Borax @0.3%) and T5 (ZnSO4 @0.1 % + Borax@ 0.3%) and it was significantly superior over the other treatments at all stages of observation. The maximum yield kg/plant no. of fruits/plant was recorded in T7 (ZnSO4 @0.1% + FeSO4 @0.2 % + Borax 0.3%) which was at par with the application of T6 (FeSO4 @0.2% + Borax @0.3%) and T5 (ZnSO4 @0.1 % + Borax@ 0.3%) and it was significantly superior over the other treatments at all stages of observation. The maximum chemical parameters viz., TSS(°Brix), ascorbic acid(mg/100g) and all sugars (%) were recorded with the application of T7 (ZnSO4 @0.1% + FeSO4 @0.2 % + Borax 0.3%) which was at par with the application of T6 (FeSO4 @0.2% + Borax @0.3%) and T5 (ZnSO4 @0.1 % + Borax@ 0.3%) and it was significantly superior over the other treatments at all stages of observation.

Keywords:

Zinc Sulphate, Ferrous Sulphate, Borax, Micronutrients.

Aim/Objectives

Methods