EVALUATION OF RED FLESHED GUAVA (Psidium guajava L.) VARIETIES FOR GROWTH, YIELD, QUALITY, SHELF LIFE AND PROCESSING POTENTIAL UNDER NORTH-EASTERN TRANSITIONAL ZONE OF KARNATAKA
Loading...
Date
2018-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Horticultural Sciences, Bagalkot
Abstract
An experiment entitled ‘Evaluation of red fleshed guava (Psidium guajava L.)
varieties for growth, yield, quality, shelf life and processing potential under northeastern
transitional zone of Karnataka’was conducted at Department of Fruit Science,
College of Horticulture, Bidar during 2017-18. The experiments were laid out in a
randomized block design and observations on growth, yield, quality, shelf- life and
processing potential of promising red fleshed guava varieties were evaluated.
Among the different accessionsevaluated, the H-17-16 was found to be
significantly superior in plant height (2.36 m) and number of quaternary branches
(76.45).While, the variety Arka Kiran was significantly superior in stem girth
(6.21 cm), plant spread (EW-3.06 m and NS-2.52 m) and canopy volume (13.85 m3)
which was statistically on par with H-17-16. The performance with respect to yield
pointed out that the accession H-17-16 had recorded the maximum percent fruit set
(90.47%), maximum number of fruits harvested per plant (104.67) and thehighest
yield (11.45 kg/plant and 12.72 t/ha) which was followed by Arka Kiran. With respect
to fruit quality parameters, the maximum fruit length (7.45 cm) and TSS (15.20 0B)
was found in H-17-16, whereas the maximum ascorbic acid (243.47 mg/100 g)
andtotal sugars (12.37 %), was observed in SRD-HYD-1. The lycopene content was
maximum in Arka Kiran (5.14 mg/100 g). The organoleptic scores on overall
acceptability was highest for fruits of Arka Rashmi followed by H-17-16 and
Arka Kiran.
Studies on effect of pre harvest spray on selected red pulp varieties
revealedthe minimum physiological loss in weight in fruits of Punjab Pink (Day 1 –
Day 8) when sprayed with Ca(No3)2-0.5% and n-Propyl gallate-300ppm. The treated
fruits alsoretained the maximum firmness and shelf life.The investigation on quality,
storability and organoleptic assessment of processed products prepared from different
red fleshed varieties revealed that the squash, RTS and jelly prepared from fruits of
H-17-16 and Arka Rashmi recorded high scores while the lycopene retention was
maximum in Arka Kiran in all the three products respectively.