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Vol. 11, Issue 3 (2022)

Role of pre-harvest application of elicitors and bio-formulations on physical, physiological quality and disease index of papaya (Carica papaya L.) var. red lady fruits during storage

Author(s):
Kavya K, Mallikarjun G Awati, Manjunath G, Venkatesh M, Ranjitha J and Md. Jameel Jhalegar
Abstract:
The present study was conducted to assess the pre-harvest application of elicitors and bio-formulations (Brassinosteriod @ 0.05%, Brassinosteriod @ 0.1%, Chitosan @ 2%, Pseudomonas fluorescens @ 1x108cells/ml, Bacillus subtilis @ 1x108cells/ml, Salicylic acid @ 300ppm, Clove oil @ 0.2%, Eucalyptus oil @ 0.2%) on papaya fruits at different development stages. The first spray was taken upat 2 months before harvest, 2nd and 3rd spray - 15 days after 1st and 2nd spray, respectively. The results indicated that, pre-harvest application of Salicylic acid @ 300ppm on among these treatments Salicylic acid @ 300ppm on Red Lady papaya fruits recorded high firmness and lowest physiological loss in weight, decreased respiration rate and Colour values (L*, a*, b*) and thereby improve the fruit quality and Shelf life. The next best treatment was T3 i.e., papaya fruits sprayed with Brassinosteriod @ 0.1% also recorded similar to that of T7, compared to control fruits sprayed by water alone (T1) where it recorded highest physiological loss in weight (PLW), higher respiration rate and rapid increase in colour values. The percent disease index (PDI) was highest in control fruits, least in Salicylic acid @ 300ppm and Brassinosteriod @ 0.1% sprayed fruits.
Pages: 448-455  |  533 Views  245 Downloads


The Pharma Innovation Journal
How to cite this article:
Kavya K, Mallikarjun G Awati, Manjunath G, Venkatesh M, Ranjitha J, Md. Jameel Jhalegar. Role of pre-harvest application of elicitors and bio-formulations on physical, physiological quality and disease index of papaya (Carica papaya L.) var. red lady fruits during storage. Pharma Innovation 2022;11(3):448-455.

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