Impact of plant growth regulators and nutrients on guava (Psidium guajava) yield in the south-eastern Rajasthan
Keywords:
Fruit drop, Fruit retention, Fruit setting, PGRs, Sugars, Vitamin CAbstract
The experiment was conducted at Horticulture Research Farm, Career Point University, Kota, during 2023-24 to examine the
influence of plant growth regulators and nutrients on fruit setting and physiochemical attributes of guava (Psidium guajava L.) cv.
L-49. The plants received first dose of PGRs and nutrients at fruit setting and second at fruit development stage. Foliar application
of potassium sulphate (1.0 %) significantly reduced fruit drop (39.77%), while improved fruit setting (71.05%) and fruit retention
(60.23%). The foliar application of potassium sulphate (1.0%) increased fruit weight (142.43g), fruit length (8.71cm), fruit width
(7.89cm), fruit volume (132.77cc), TSS (11.70%), TSS: acid ratio (30.00), vitamin C (174.10), pectin (1.83 %), reducing sugar (3.80%),
non-reducing sugar (3.45%) and total sugars (7.25%) and minimum acidity (0.39%). The foliar application of potassium sulphate
(1.0%) also improved the fruiting and physiochemical characteristics of guava cv. L-49 as compared to the control.
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References
Aly MA, Harhash MM, Awad RM and El-Kelawy HR 2015. Effect of foliar application with calcium, potassium and zinc treatments on yield and fruit quality of Washington navel orange trees. Middle East J. Agric. Res. 4: 564-568.
AOAC, 2005. Official methods of analysis, 18th edn Association of Official Analytical Chemists, Washington DC.
Darshan D, Shukla A K, Hota D, Singh V and Kumar V 2023. Foliar application of growth regulators and nutrients for enhanced yield attributes of guava cv. Lalit. Emergent Life Sci. Res. 9: 72-76.
El-Safty MA, El-Menshawy EA and Rabeii RS 1998. Response of Washington navel orange trees to different doses of potassium sulphate. A-yield, fruit quality and mineral composition. Journal Agriculture Science Mansoura University, 23: 2611-2618.
FAOSTAT (2022). https://www.fao.org/faostat/en/#data/QCL
Gill KS, Dhaliwal HS, Mahajan BVC, Paliyat G and Boora R S 2016. Enhancing postharvest shelf life and quality of guava (Psidium guajava L.) cv. Allahabad Safeda by pre-harvest application of hexanal containing aqueous formulation. Postharvest Biol. Technol. 112: 224-232.
Gill PPS, Ganaie MY, Dhillon WS and Singh NP 2012. Effect of foliar sprays of potassium on fruit size and quality of ‘Patharnakh’pear. Indian J. Hortic. 69: 512-516.
Iqbal M, Niamatullah M and Munir M 2009. Effect of various Dactylifera males pollinizer on pomological traits and economical yield index of cv’s Shakri, Zahidi and Dhakki date palm (Phoenix dactylifera L.). J. Anim. Plant Sci. 22: 376– 383.
Khan SU, Alizai AA, Ahmed N, Sayed S, Junaid M, Kanwal M and Ali EF 2022. Investigating the role of potassium and urea to control fruit drop and to improve fruit quality of “Dhakki” date palm. Saudi J. Biol. Sci. 29: 3806-3814.
Kumar GK, Vani VS, Rao AD, Subbaramamma P and Sujatha RV 2017. Effect of foliar sprays of urea, potassium sulphate and zinc sulphate on quality of guava cv. Taiwan pink. J. Chem. Sci. 5: 680-682.
Kumar J, Kumar R, Rai R and Mishra DS 2015. Response of Pant Prabhat guava trees to foliar sprays of zinc, boron, calcium and potassium at different plant growth stages. The Bioscan 10: 495-498.
Lal N and Das RP 2017. Effect of plant growth regulators on yield and quality of guava (Psidium guajava L.) cv. Allahabad Safeda. Int. J. Curr. Microbiol. Appl. Sci. 6: 857-863.
Lenka J, Acharya GC, Sahu P, Dash DK, Samant D, Panda KN and Panda RK 2019. Effect of foliar nutrition of micronutrients and plant growth regulators on yield and quality of guava (Psidium guajava L.) cv. Allahabad Safeda. Int. J. Commun. Syst. 7: 1327-1333.
Mandal G, Dhaliwal HS and Mahajan, B. V. C. (2012). Effect of pre-harvest application of NAA and potassium nitrate on storage quality of winter guava (Psidium guajava). Indian J. Agric. Sci. 82: 985.
Manivannan MI, Irulandi S and Thingalmaniyan KS 2015. Studies on the effect of pre-harvest application of plant growth regulators and chemicals on yield and quality of guava (Psidium guajava L.) cv. L.-49. Int. J. Agric. Sci. 11:138-40.
Mishra KK, Sanjay Pathak SP, Nitish Sharma NS and Nikita Nehal NN 2017. Effect of pre-harvest nutrients spraying on physicochemical quality and storage behaviour of rainy season guava (Psidium guajava L.) fruits cv. L-49. Plant Arch. 17: 597-600.
Omar AEK, Ahmed MA and Al-Saif AM 2017. Influences of seaweed extract and potassium nitrate foliar application on yield and fruit quality of date palms (Phoenix dactylifera L. cv. Sukary). Adv. Agric. Sci. 5: 16-22.
Prasad B, Dimri DC and Bora L 2015. Effect of pre-harvest foliar spray of calcium and potassium on fruit quality of Pear cv. Pathernakh. Sci. Res. Essays 10: 376-380.
Priyadarshi V, Hota D and Karna AK 2018. Effect of growth regulators and micronutrients spray on chemical parameters of litchi (Litchi chinensis Sonn.) cv. Calcuttia. Int. J. Econ. Plants 5: 99-103.
Shareef HJ 2016. Enhancing fruit set and productivity in date palm (Phoenix dactylifera L.) Berhi cultivar using boron and potassium. J. Environ. Sci. 5: 108-114.
Sharma R and Tiwari R 2015. Effect of growth regulator sprays on growth, yield and quality of guava under malwa plateau conditions. Ann. Plant Soil Res. 17: 287-291.
Singh C, Sharma VP, Usha K and Sagar VR 2002. Effect of macro and micronutrients on physico-chemical characters of grape cv. Perlette. Indian J. Hortic. 59: 258-260.
Singh K, Bons HK, Kaur N and Gill KS 2022. Effect of foliar application of different mineral nutrients on fruit set and yield contributing attributes of ber cv. Umran. Agric. Res. J. 59: 372-375.
Vijay Agrawal VA 2012. Effect of pre-harvest sprays and post-harvest dip of different chemicals on shelf-life of guava. Int. J. Agric. Sci. 8: 247-249.
Zaied NS, Khafagy SAA and Saleh MA 2006. Effect of nitrogen and potassium fertilization on vegetative growth, fruit set and quality of Washington navel orange trees. J. Appl. Sci. Res. 11: 851-857.
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