NUTRIENT MANAGEMENT AND PLANT GROWTH REGULATORS FOR IMPROVING DRY MATTER ACCUMULATION, ITS PARTITIONING, YIELDAND QUALITY OF INDIAN MUSTARD

R.K. DUBEY¹, S.L. MUNDRA², R.C. DHAKER³*, S.K. DUBEY⁴, REENA DUBEY^5
1ICAR-Indian Institute of Soil Water Conservation, Research Centre, Chhalesar, Agra, 282 006, Uttar Pradesh, India
²Department of Agronomy, Rajasthan College of Agriculture, Maharana Pratap University of Agriculture and Technology, Udaipur Rajasthan, India
³Agriculture Research officer (Agronomy), Deputy Director Agriculture Jila Parishad, Udaipur, Rajasthan, India
⁴ICAR-Indian Institute of Soil Water Conservation, Research Centre, Chhalesar, Agra, 282 006, Uttar Pradesh, India
⁵G.B. Pant University of Agriculture and Technology, Pantnagar, Nainital, Uttarakhand, India
* Corresponding Author : rameshagro2011@gmail.com

Received : 04-12-2018     Accepted : 27-12-2018     Published : 30-12-2018
Volume : 10     Issue : 24       Pages : 7682 - 7687
Int J Agr Sci 10.24 (2018):7682-7687

Keywords : Brassinolide, Crude protein, Dry matter accumulation, Indole acetic acid, Seed oil content
Academic Editor : Dr Prashant Shrivastava
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Maharana Pratap University of Agriculture and Technology, Udaipur Rajasthan, India. Authors are also thankful to Jila Parishad, Udaipur, Rajasthan, India
Author Contribution : All authors equally contributed

Poor oilseed productivity in India closely interlinks to imbalanced and inadequate fertilization and diverse variety of climate and edaphic adversities. In this backdrop, a study was conducted at Udaipur in Indian mustard during winters of 2012 and 2013 to assess effect of eight nutrient treatments i.e. 75 and 100% recommended dose of fertilizers (RDF) and their combinations with 5 t farm yard manure ha-1 (FYM), bio-fertilizers (Azotobacter+ PSB) and FYM + bio-fertilizers in main plots and four plant growth regulators or PGRs (water spray, brassinolide/BR0.5 ppm, Indole 3 acetic acid/IAA 50 ppm and BR 0.5 ppm + IAA 50 ppm) in sub plots of a split plot design replicated thrice. Results show that 100% RDF+ FYM + bio-fertilizers registered significantly higher pooled dry matter accumulation (DMA) plant-1 at 30, 60, 90 days after sowing (DAS) and physiological maturity (7.46, 26.36, 34.56 and 57.79 g, respectively); dry matter partitioning (DMP) in siliquae and leaves (53.49 and 14.11%, respectively), seed oil content (38.90%), crude protein in seed (17.24%), harvest index (19.19%) and seed, stover, crude protein and oil yield (3231, 13604, 558 and 1261 kg ha-1, respectively). Among stress mitigating PGRs, BR + IAA outperformed registering significantly higher pooled DMA plant-1at 60, 90 DAS and physiological maturity (24.84, 33.26 and 55.31 g, respectively); DMP in siliquae and leaves (53.35 and 14.90%, respectively), seed oil content (38.59%), crude protein in seed (16.97%) and seed, stover, crude protein and oil yield (2922, 12379, 497 and 1132 kg ha-1, respectively).

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