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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(8): 2510-2516
DOI: https://doi.org/10.20546/ijcmas.2020.908.287


Impact of Foliar Application of Growth Regulators and Macro Nutrients on Fruit Yield and Quality of Sweet Orange cv. Sathgudi
L. Mukunda Lakshmi1*, A.D. Huchche2, D. Srinivas Reddy3, T. Rajasekharamand K.T. Venkata Ramana5
Dr Y S R Horticultural University, AICRP on Fruits, CRS, Tirupati, Andhra Pradesh- 517 502, India
*Corresponding author
Abstract:

Sathgudi cultivar of sweet orange is very popular in Andhra Pradesh and it is successfully grown in Rayalaseema region (Red and loamy soils) of Andhra Pradesh. In certain scarce rainfall regions of Andhra Pradesh, Ambe bahar flower initiation in sweet orange occurs late in February and extended up to first fortnight of March resulting poor fruit growth, leading to low economic fruit yields. To enhance the fruit growth and yields rapidly, an investigation was made in farmers orchard at two locations in YSR District with combined spays of growth regulators and macronutrients, consisting of 9 treatments viz., 2,4-dichlorophenoxy acetic acid (2,4-D) and GA3 at 10ppm combined with two different concentrations of urea and monopotassium phosphate at 1 and 1.5 % and water spray (control) at different stages of fruit development. Two consecutive years (2017-18 and 2018-19) of study indicated that pre harvest spray of urea @ 1.5 % along with 2,4-D 10 ppm or GA3 10 ppm, one month before harvest enhances sweet orange fruit yield by 40 % and 39.76% respectively, as compared to control. The fruit weight was significantly improved due to application of plant growth regulators but not the fruit quality like TSS and acidity.


Keywords: Sathgudi, Plant growth regulators, Macronutrients, Fruit yield
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How to cite this article:

Mukunda Lakshmi, L., A.D. Huchche, D. Srinivas Reddy, T. Rajasekharam and Venkata Ramana, K.T. 2020. Impact of Foliar Application of Growth Regulators and Macro Nutrients on Fruit Yield and Quality of Sweet Orange cv. Sathgudi.Int.J.Curr.Microbiol.App.Sci. 9(8): 2510-2516. doi: https://doi.org/10.20546/ijcmas.2020.908.287