Studies on Effect of ethrel and Gibberellic Acid on Growth and Yield of Sugarcane variety “CoPk 05191” (Pratap Ganna 1) with Recommended Agronomic Practices

Author: Ramkishan Meena, B.S. Meena, N.R. Koli, H.P. Meena, Yamini Tak and Vishal Gupta

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Abstract

The farmers and sugar business in north India are concerned about the low yield of sugarcane. Around 75% of subtropical India delays planting until April or May following wheat harvest. Growth-regulating agents have a lot of potential to increase cane height and germination, particularly in late-planted sugarcane, where yields are low because the canes are short and millable. It is necessary to assess the technology used to apply these chemicals, nevertheless. In light of this, an experiment was carried out at the ARS research farm at Agricultural University of Kota (Rajasthan), India, throughout the spring seasons of three consecutive years (2015–16, 2016–17, and 2017–18). The experimental soil had a texture similar to clay loam and a modest level of organic carbon (0.52%). The available potassium level (320 kg/ha), available nitrogen (354 kg/ha), and available phosphorus (25.30 kg/ha) are all high, and the pH is 8.19. The experiment was set up in a randomized block design in March using the variety "CoPk 05191 (Pratap Ganna 1)," and it was harvested after a full year. The usage of growth agents such as gibberellic acid and ethrel had a substantial impact on the yield characteristics. In comparison to T1, T2, and T3, the treatment consisting of planting two budded sets following an overnight soak in a 100 ppm ethrel solution and spraying 35 ppm of gibberellic acid at 90, 120, and 150 DAP (days after planting) (T8) produced noticeably more millable canes/ha, cane weight, cane yield, brix, sucrose, and purity percentage. The highest gross and net returns (Rs. 247200 and Rs. 131750/ha) were achieved with this treatment

Keywords

Agronomic practices, Ethrel, Gibberellic acid, Growth regulators, Sugarcane, Yield and economics

Conclusion

Based on three years among treatment combination of PGR, planting of sets after overnight soaking in 100 ppm ethrel solution + GA3 spray at 90, 120, 150 DAP treatment was found excellent for increasing number of millable cane, cane weight, cane yield and also quality parameters i.e. Brix, Sucrose (%), CCS (%) CCS yield, purity (%), Gross return and net return which was significantly superior over T1 and T2 treatments and at par with rest of treatments followed by T 7 : Planting of sets after overnight soaking in 50 ppm ethrel solution + GA3 (35 ppm) spray at 90, 120 and 150 DAP treatment also same trend

References

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How to cite this article

Ramkishan Meena, B.S. Meena, N.R. Koli, H.P. Meena, Yamini Tak and Vishal Gupta (2024). Studies on Effect of ethrel and Gibberellic Acid on Growth and Yield of Sugarcane variety “CoPk 05191” (Pratap Ganna 1) with Recommended Agronomic Practices. Biological Forum – An International Journal, 16(7): 333-335.