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Anjum Rashid ¹, N. A. Kirmani ¹, Nageena Nazir ¹, Sameera Shafi ¹

Affiliations
1 Division of Soil Science, Sher-E-Kashmir University of Agricultural Science and Technology (Kashmir), Shalimar, Srinagar (J&K), IN

Abstract

Twelve treatment combinations of soil and foliar potassium applications were tested to study the effect of potassium on quality and nutrient concentration of apple fruit under orchard conditions. The study revealed that all the treatments exhibited positive effect on apple quality. All the treatments significantly increased the fruit weight, length, diameter, TSS, color and fruit firmness, while simultaneously a decrease in fruit acidity was also recorded. Highest fruit weight, length, diameter, TSS and color were recorded in treatment combination S₃F₂ (i.e. soil K₂O @ 2250 gm/tree+foliar spray of 1.5% K₂SO₄) which was found at par with S₂F₂ treatment. (i.e. soil K₂O @ 1500 gm/tree+foliar spray of 1.5% K₂SO₄); significant increase and decrease in the fruit potassium and calcium contents, respectively, was also observed.

Keywords

Potassium, Nutrient Concentration, Apple, Fruit Quality.

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Anjum Rashid ¹, N. A. Kirmani ¹

Affiliations
1 Division of Soil Science, S.K. University of Agricultural Science and Technology (K), Shalimar, Srinagar (J&K), IN

Abstract

Four different levels of potassium (K) viz., K₀, K₇₅₀, K₁₅₀₀ and K₂₂₅₀ g K₂O/tree as soil application were applied to estimate the effect on mineral composition and fruit quality of apple cv. RED DELICIOUS, subsequently it was observed that increase in K levels from K₀ to K₂₂₅₀ significantly increased the leaf K and Fe content, whereas it significantly decreased the content of P, Ca, Mn, Zn and Cu. Fruit quality parameters like fruit weight, length and diameter increased significantly with K application upto K₂₂₅₀ level and was at par with level K₁₅₀₀. Fruit TSS and colour also showed increased trend with a simultaneous decrease in fruit acidity.

Keywords

Soil Potassium, Nutrient Concentration, Fruit Quality, Apple.

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Sameera Shafi ¹, S. A. Mir ², Nageena Nazir ², Anjum Rashid ²

Affiliations
1 Division of Agricultural Statistics, S.K. University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar (J&K), IN
2 Division of Agricultural Statistics, S.K. University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar (J&K), IN

Abstract

Optimum plot shape and size of plot has been worked out from uniformity trial on S-II variety of tomato. Maximum curvature method, Fair-field Smith’s variance law was used for the purpose. A plot of 8 m2 (4m x 2 m) was found to be optimum for S-II variety of tomato grown at RRS and FOA Wadura Campus, SKUAST-K. The trial indicated that coefficient of variation decreased with increase in plot size in either direction, but decrease was more in north-south direction than east-west direction. The shape of plot has been found to have very little influence on variability within the range of plot size considered.

Keywords

Tomato, Trial, Variety.

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