Effect of plant growth regulators on growth, yield and quality of tissue cultured papaya (Carica papaya) cv. Red Lady

T K HAZARIKA; BALSRI D SANGMA; D MANDAL; B P NAUTIYAL; A C SHUKLA

doi:10.56093/ijas.v86i3.57035

Authors

T K HAZARIKA Mizoram University, Aizawl, Mizoram 796 004
BALSRI D SANGMA Mizoram University, Aizawl, Mizoram 796 004
D MANDAL Mizoram University, Aizawl, Mizoram 796 004
B P NAUTIYAL Mizoram University, Aizawl, Mizoram 796 004
A C SHUKLA Uttarakhand University of Horticulture and Forestry, Bharsar, Uttarakhand

https://doi.org/10.56093/ijas.v86i3.57035

Keywords:

Growth, Papaya, Plant growth regulators, Quality, Yield

Abstract

The present investigation was carried out to find out the response of plant growth regulators on the growth, yield and quality of tissue cultured papaya (Carica papaya L.) cv. Red Lady in Mizoram, north-east India. The study indicates that growth yield and quality of the papaya fruits were significantly influenced by plant growth regulators studied. Among treatments, the highest vegetative growth, yield attributing characters and yield were recorded with GA₃ 200 ppm. It also recorded maximum value with respect to different growth parameters, viz. plant height, girth and E-W and N-S spread. Treatment with 200 ppm GA₃ also showed superiority in different yield-attributing characteristics, such as fruit set percentage, number of fruits/plant, fruit length, fruit diameter, fruit circumference, fruit weight, and fruit volume. Quality parameters, such as TSS, acidity, total, reducing and non-reducing sugars of fruits, 400 ppm of ethrel, exhibited significantly maximum value.

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