Influence of plant growth regulators on yield and quality of Karonda (Carissa carandas L.)
Keywords:
Fruit quality, fruit yield, karonda, plant growth regulatorsAbstract
An experiment was conducted on 6 year-old- plants of karonda at the Horticultural Research Station of Bidhan
Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal to know the effect of different growth regulators on fruit
yield and physico-chemical composition of fruits. There were five treatments viz., NAA at 20, 40 ppm; GA at 20 and 40 ppm
and control (water spray) which were sprayed two times i.e., at 50% flowering stage and 21 days after 1st spray. The
experiment was conducted following the randomized block design having four replications. The study clearly indicated that
plant growth regulators were effective at different concentration in increasing fruit yield and physico-chemical characteristics
of fruits. Application of NAA at 20 ppm resulted in maximum fruit set (93.62% ), fruit retention (83.0%) and fruit yield ( 4.07
kg/plant). The treatment also increased fruit weight and pulp content while GA at 20 ppm was found to be the best for
increasing TSS (8.87°B), total sugars (6.05%), ascorbic acid (34.00 mg/100 g) and anthocyanin (3.87 mg/100 g pulp) contents
followed by NAA 20 ppm. Considering the over all performance and lower market price, the NAA at 20 ppm is
recommended for higher production of quality karonda fruits in new alluvial zone of West Bengal.
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References
A.O.A.C. (1990). Official Methods of Analysis (15th ed.). Association of Official Agriculture Chemists, Washington, D.C.
Brahmachari, V. S., & Rani, R. (2001). Effect of growth substances on fruit cracking, productivity, ripening, and quality of litchi. Orissa Journal of Horticulture, 29, 44-45.
Das, B. C., Maji, S., Singha, S. S., Dutta, P., & Dhua, R. S. (2006). Growth regulator in controlling fruit drop of Rose apple (Syzygium jambos) grown in West Bengal. Proceedings of the National Symposium on Production, Utilization, and Export of Underutilized Fruits with Commercial Qualities, 168-173.
Dutta, P., Das, B. C., Singha, S., Dhua, R. S., Hasan, M. A., & Kundu, S. (2006). Effect of plant growth regulator on physio-chemical qualities of Rose apple and Water apple grown under West Bengal condition. Proceedings of the National Symposium on Production, Utilisation, and Export of Underutilized Fruits with Commercial Utilities, 126-131.
Ghosh, S. N., Bera, B., Kundu, A., & Roy, S. (2009). Effect of plant growth regulators on fruit retention, yield, and physico-chemical characteristics of fruits in ber 'Banarasi Karka' grown in closing spacing. Acta Horticulturae, 840, 357-362.
Ghosh, S. N., Bera, B., Roy, S., Kundu, A., & Dutta Roy, S. K. (2009). Effect of nutrients and plant growth regulators on fruit retention, yield, and physicochemical characteristics of aonla cv. NA-10. Journal of Horticultural Science, 4(2), 164-166.
Ghosh, S. N., Bera, B., Roy, S., & Kundu, A. (2009). Effect of plant growth regulators on yield and quality in pomegranate cv. Ruby. Journal of Horticultural Science, 4(2), 158-160.
Leopold, A. C. (1958). Auxin uses in the control of flowering and fruiting. Annual Review of Plant Physiology, 9, 281-310.
Tomaszewska, E., & Tomaszewska, M. (1970). Endogenous growth regulators in fruit and leaf abscission. Zeszyty Nauk Biologiczne, Copernicus University Torun, 23, 45-53.
Weaver, R. Z. (1972). Biological effects and mechanism of action. In Plant Growth Substances in Agriculture (pp. 90-117). S. Chand and Company Ltd., Ram Nagar, New Delhi-110055.
Yadav, D. N., & Chaturvedi, O. P. (2005). Influence of GA3 and trace elements on fruit drop, growth, and quality of ber (Ziziphus mauritiana) cv. Banarasi Karaka. Farm Science Journal, 14(1), 27-28.
Uniyal, Shweta, & Misra, K. K. (2015). Effect of plant growth regulators on fruit drop and quality of bael under Tarai condition of Uttarakhand. Indian Journal of Horticulture, 72(1), 126-129.
