Effect of Nitrogen Levels and Mepiquat Chloride on Yield and Economics of HDPS Cotton

K. Srikala

College of Agriculture, Rajendranagar, PJTSAU, Hyderabad, India.

T. Prabhakar Reddy *

Krishi Vignana Kendra, Palem, PJTSAU, Telangana, India.

K. Pavan Chandra Reddy

College of Agriculture, Rajendranagar, PJTSAU, Hyderabad, India.

S. G. Mahadevappa

Agro Climate Research Centre, PJTSAU, ARI, Rajendranagar, Hyderabad, India.

*Author to whom correspondence should be addressed.


A field experiment was conducted during Kharif, 2022 at Krishi Vigyan Kendra, Palem, to evaluate the effect of nitrogen levels and mepiquat chloride on the yield and economics of HDPS cotton. The experiment was laid out in a randomized block design with three replications. The results of this experiment revealed that application of T9: 125% RDN applied in splits at 15, 30, 45, 60, 75 DAS along with 2 sprays of 5% mepiquat chloride at 45 and 60 DAS recorded significantly higher number of bolls plant-1 (11.7), boll weight (4.49 g) and seed cotton yield (2484 kg ha-1). In terms of economic analysis, this treatment also exhibited the highest gross returns (₹ 1,78,872 ha-1), net returns (₹ 1,03,878 ha-1) and BC ratio (2.39). Conversely, the application of T1: 75% RDN in recommended splits of 20, 40, 60, 80 DAS recorded the lowest number of bolls plant-1 (8.0), boll weight (2.53 g) and seed cotton yield (1402 kg ha-1), as well as lower gross returns (₹ 1,02,766 ha-1), net returns (₹ 33,802 ha-1) and BC ratio (1.50).  Based on these findings, it is recommended to adopt the practice of applying T9: 125% RDN (150 kg N ha-1) in splits at 15, 30, 45, 60, 75 DAS along with 2 sprays of 5% mepiquat chloride at 45 and 60 DAS to achieve maximum yield and economic returns of HDPS cotton.

Keywords: Nitrogen levels, yield and economics, cotton, mepiquat chloride

How to Cite

Srikala, K., Reddy, T. P., Reddy, K. P. C., & Mahadevappa, S. G. (2023). Effect of Nitrogen Levels and Mepiquat Chloride on Yield and Economics of HDPS Cotton. International Journal of Environment and Climate Change, 13(11), 1960–1967. https://doi.org/10.9734/ijecc/2023/v13i113354


Download data is not yet available.


Boquet DJ, Breitenbeck GA. Nitrogen rate effect on partitioning of nitrogen and dry matter by cotton. Crop Science. 2000; 40(6):1685-1693.

Gwathmey CO, Clement JD. Alteration of cotton source sink relations with plant population density and mepiquat chloride. Field Crops Research. 2010;116:101-107.

Sawan ZM, Fahmy AH, Yousef SE. Direct and residual effects of nitrogen fertilization, foliar application of potassium and plant growth retardant on Egyptian cotton growth, seed yield, seed viability and seedling vigour. Acta Ecologica Sinica. 2009;29(2):116-123.

Zhao D, Oosterhuis DM. Pix Plus and mepiquat chloride effects on physiology, growth, and yield of field-grown cotton. Journal of Plant Growth Regulation. 2000; 19(4):415–422.

Duan L, Tian X, Zhang Y, Tang Z, Zhai Z, He Z. Effects of mepiquat chloride on lateral roots initiation of cotton seedling and its mechanism. In Proceedings: Australian Agronomy Conference, Brisbane; 2004.

Panse VC, Sukhatme PV. Statistical methods for Agricultural workers. Indian Council of Agricultural Research, New Delhi. 1978;87-89.

Bharathi S, Kumari SR, Krishna ANV, Reddy VC. Effect of nitrogen levels, split application of nitrogen on yield and fibre quality of Bt cotton in vertisols. Journal of Cotton Research and Development. 2016; 30(2):201-204.

Kadiyam P, Rekha MS, Lakshman K, Rao CS. Economics and quality of HDPS cotton with different plant growth regulators in coastal Andhra Pradesh: Plant growth regulators for HDPS cotton production. Journal of AgriSearch. 2022;9(2):172-175.

Patel BR, Chaudhary PP, Chaudhary MM, Reddy TV. Effect of mepiquat chloride on yield attributes, yield and economics of Bt cotton under high density planting system. The Pharma Innovation. 2021;10(12): 1503-1507.

Feibo W, Lianghuan W, Fuhua X. Chlorophyll meter to predict nitrogen sidedress requirements for short-season cotton (Gossypium hirsutum L.). Field crops research. 1998;56(3):309-314.

Gausman HW, Walter H, Rittig FR, Escobar DE, Rodriguez RR. Effect of mepiquat chloride (PIX) on CO2 uptake of cotton plant leaves. 7th Annual meeting of plant growth regulator working group, Dalla. 1980;1-6.

Kaur P. Morphological manipulations of American cotton (Gossypium hirsutum L.) for high productivity through planting patterns and growth retardants. M.Sc., Thesis, Punjab Agricultural University, Ludhiana, India; 1998.

McConnell JS, Mozaffari M. Yield, petiole nitrate and node development responses of cotton to early season nitrogen fertilization. Journal of Plant Nutrition. 2005;27(7):1183-1197.

Brar HS, Kumar D, Singh P. Dataset of source-sink manipulation through growth retardant for enhancing productivity and profitability of cotton in North West, India. Data in brief. 2020;31:105914.

Khetre OS, Shinde VS, Asewar BV, Mirza IAB. Response of growth and yield of Bt cotton to planting densities as influenced by growth regulators. International Journal of Chemical Studies. 2018;6(4):485-488.

Devi B, Bharathi S, Sree Rekha M, Jayalalitha K. Performance of cotton under high density planting with varied spacing and levels of nitrogen. The Andhra Agricultural Journal. 2018;65(1):49-52.

Abbas H, Wahid MA, Sattar A, Tung SA, Saleem MF, Irshad S, Alkahtani J, Elshikh MS, Cheema M, Li Y. Foliar application of mepiquat chloride and nitrogen improves yield and fibre quality traits of cotton (Gossypium hirsutum L.). Plos one. 2022; 17(6):e0268907.

Alur A, Halepyati AS, Chittapur BM, Nidagundi JM, Koalkar BG. Effect of high density planting and nutrient management on growth and yield of compact cotton (Gossypium hirsutum L.) Genotypes. Journal of Pharmacognosy and Phytochemistry. 2020;9(4):294-297.

Kanchana T, Sakthivel N, Thavaprakaash N, Balamurugan J. Performance of compact cotton (Gossypium hirsutum L.) genotypes to varied nutrient levels under high density planting system in winter irrigated condition. Journal of Pharmacognosy and Phytochemistry. 2019;8(3):3084-3088.

Daisy M, Rajendran K, Senthilkumar K, Sureshkumar R. Effect of increased level of fertilizers on Bt cotton and green fodder yield under cotton+ legume fodder intercropping system of western zone of Tamil Nadu. International Journal of Current Sciences. 2018;6(2):184-187.

Dharani K, Ravichandran V, Anandakumar S, Sritharan N, Sakthivel N. Impact of growth retardant and defoliant on morpho-physiological traits and yield improvement in cotton. International Journal of Plant & Soil Science. 2022;34(20):635-644.

Veeraputhiran R, Gunasekaran M. Effect of time of growth retardant application on growth of cotton plant under high density planting system. Journal of Cotton Research and Development. 2020;34(1): 67-71.

Deol JS, Rajni, Kaur R. Production potential of cotton (Gossypium hirsutum L.) as affected by plant growth regulators (PGRs). International Journal of Current Microbiololgy and Applied Sciences. 2018;7(4):3599-3610.

Kulvir S, Singh HP, Pankaj R, Kuldeep S, Mishra SK. Manipulations of source sink relationships through mepiquat chloride for enhancing cotton productivity and monetary returns in north western India. Journal of Cotton Research and Development. 2017;31(1):62-68.