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Abstract
Aim: Guava crop is
severely infested during rainy season by fruit fly that results in low
quality fruits and lower yield. In view of this, a study was conducted to
reduce the fruit fly infestation through bagging technique by using
biodegradable bags.
Methodology: The present
investigation was carried out at G.B. Pant University of Agriculture and
Technology, Pantnagar, Uttarakhand. Four-years-old plants of guava cv.
Allahabad Safeda were selected for the experiment, and the fruits were bagged
with different colour non-woven and perforated polyethylene bags.
Results: Pink colour
non-woven bag reduced the time taken for maturity and improved the quality of
fruits. Fruit fly infestation was eradicated by fruit bagging and also
reduces bird damage. Total soluble solids, pectin content, ascorbic acid,
titratable acidity and sugars were found maximum in pink non-woven bagged
fruits. Principle Component Analysis (PCA) was also carried out for twelve
quality parameters, out of which, component 1 and component 2 showed Eigen
value 8.77 and 1.69, respectively. PC1 and PC2 collectively explained 87.237%
of total variation. Correlation analysis indicated positive and negative
correlation among various quality attributes.
Interpretation: This study provides
a comprehensive information to reduce fruit fly infestation during rainy
season through fruit bagging technique.
Key
words:
Bagging technique, Fruit fly, Guava fruits
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