Author(s):

Duanaliu Kamei, W Ingo Meitei and Okram Bijaya Devi

Abstract: An experiment was conducted at the Horticulture Research Farm (HRF), CAU, Andro, Imphal East during the year 2015 to 2016 to study the “Effect of Foliar Application of Micronutrients on physical parameters of fruit and quality of Mandarin Orange (Citrus reticulata Blanco.) cv. Tamenglong Mandarin”. The design of the experiment was laid on RBD with 3 replications and 9 treatments to assess the effect of different doses of Boron (T₁=0.3%, T₂=0.4%), Copper (T₃=0.3%, T₄=0.4%), Iron (T₅=0.3%, T₆=0.4%), Zinc (T₇=0.3% T₈=0.4%) and Control (T_o=distilled water). The maximum fruit weight was recorded maximum at treatment T₈ (Zinc @ 0.4 percent) and the minimum was recorded in T₀ (control) with 110.43g and 65.92g respectively. The maximum fruit length and diameter 6.11 cm and 6.29 cm was exhibited by T₈ (Zinc @ 0.4 percent) respectively and the minimum was recorded with T₀ (control) 4.78 cm and 4.98 cm respectively. The maximum juice yield was recorded by application of T₈ (Zinc @ 0.4 percent) with 45.69% and was found significant with all other treatment tested and minimum juice percentage was observed by control (T₀) with 34.97%. Significant differences of vitamin C content was recorded for various treatments with T₈ (Zinc @ 0.4 percent) 29.57mg/100 ml exhibiting the highest vitamin C content and lowest vitamin C content was recorded in T₀ (control) 22.61mg/g. The maximum titratable acidity (0.99%) was recorded in T₀ (control) and minimum was recorded in T₈ (Zinc @ 0.4 percent) at 0.68%. The maximum TSS (9.90⁰Brix) was recorded in T₈ (Zinc @ 0.4 percent) and lowest by T₀ (Control) at 8.70⁰Brix. Specific gravity was found maximum by application of T₈ (Zinc @ 0.4 percent) 1.17 and minimum was recorded by T₀ 0.94.

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