1. “Integrated approach for reducing the post-harvest losses and enhancement of shelf life in papaya
(Carica papaya L.)”
1Ayeeshya Kolhar, 2Rudresh D. L. 3N. Basavaraja,, and 4M. G. Awati
1 Ph.D. Scholar, Dept. of PHT, 2Dept. of NRM, COH, Bagalkot, 3Director of Research, UHS, Bagalkot, 4Office of
the Dean PGS. UHS, Bagalkot,
1Corresponding author: aishakolhar@gmail.com
Introduction
• Papaya (Carica papaya L.) is an important commercial
fruit crop, India is the largest producer of papaya but
unfortunately around post harvest loss of 40 to 100 per cent
noticed in papaya. Which is due to various factors such as
mechanical damage, chilling injury, diseases and over
ripening before reaching the destination.
• Chemicals are widely used for management of the post
harvest loss, use of these to fruits was associated, direct
human exposure and pesticide residue on the fruit surface
thus makes the fruit unsafe for consumption and also causes
environmental pollution
• It is difficult to manage the post harvest losses by using
single technology, thus there is need switching on to
integrated approach for reducing the post harvest loss.
• Thus integrated application of biocontrol agents, elicitors
molecules coupled with scientific postharvest handling
practices such as use of hot water treatment and proper
packaging can check the postharvest losses.
Objectives
• To determine the effect of postharvest treatment of elicitor
molecules, biocontrol agents and physical treatments on fruit
quality and shelf-life of papaya.
• To determine the effect of integrated application of elicitors
molecules, biocontrol agents and physical treatments on fruit
quality and shelf-life of papaya.
• To study the effect of elicitor molecules, biocontrol agents
and physical treatment on physiological and biochemical
changes in papaya
Material and methods
• Variety : Red lady
• Experimental design : Completely Randomized Design
• Number of replication : 3
• Sample size : 10 fruits/replication
Programme of Research
Experiment 1. In vivo evaluation of elicitor molecules for
quality attributes and shelf life of papaya fruit.
Experiment 2. In vivo evaluation of bio control agents for
quality attributes and shelf life of papaya fruit.
Experiment 3. In vivo evaluation of physical treatments for
quality attributes and shelf life of papaya fruit.
Experiment 4.In vivo screening of efficient bio control
agents, elicitors molecules and physical treatments on quality
attributes and shelf life of papaya fruit.
• In the proposed research we will be able to identify the elite
treatments (best elicitor, best biocontrol agent and physical
treatments). Which is followed by integrating all these and
studying its effect on the shelf life of papaya fruits
• This research also facilitate us to study the effect of elicitor
molecules, biocontrol agents and physical treatment on
physiological and biochemical changes in papaya.
Rationale
Expected Outcomes
• The imposed treatments may alter the physiology of the
fruits positively, and also reduce the post harvest disease. Thus
shelf life of the papaya fruits will increase.
