Effect of Plant Growth Regulators and Zinc Levels on Yield and Economics of Toria (Brassica rapa L.)

Author: Varada Raj*, Rajesh Singh and Thakur Indu

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Abstract

At the Crop Research Farm, Department of Agronomy, SHUATS, Allahabad, a field experiment was undertaken during the Rabi season (2021-22). The soil texture of the experimental plot was sandy loam, with a pH of 7.1, low organic carbon (0.28 percent), available N (225 kg/ha), available P (19.50 kg/ha), and available K (213.7 kg/ha). PGR1 (GA3 30 ppm), PGR2 (GA3 60 ppm), and PGR3 (GA3 90 ppm) were used as plant growth regulators, and zinc (Zn1-5 kg/ha), Zn2-10 kg/ha), and Zn3-15 kg/ha) were used as fertilizers in 3 levels. The experiment used a Randomized Block Design with nine treatments and was repeated three times. The treatment of GA3 90 ppm + Zn 15 kg/ha resulted in the highest plant height (126.50cm) (Treatment-9) recorded in the study. Number of branches per plant (11.70), plant dry weight (14.50 g/plant), number of siliqua per plant (299.80), number of seeds per siliqua (23.20), test weight (3.23 g), seed yield (1.78 t/ha), straw yield (5.53 t/ha), and harvest index were all determ

Keywords

Plant growth regulators, Growth, Yield, Zinc, Rabi, Gibberellic acid.

Conclusion

On the basis of one season experimentation it can be concluded that with the application of GA3 90 ppm + Zn 15 kg/ha was found more productive (1.78 t/ha) and economically viable (1.50). The conclusions drawn are based on one season data only which requires further confirmation for recommendation.

References

INTRODUCTION Rapeseed-mustard covers 6.23 million hectares in India, with production and productivity of 9.34 million tonnes and 1499 kg per hectare, respectively (India starts 2019-20). It is a significant Rabi crop. Mustard is grown between October and November and February and March. Rajasthan, Uttar Pradesh, and Haryana are the most important growing regions. In India, mustard rapeseed is typically produced in seven kinds. Our country's primary mustard-producing states are Rajasthan and Uttar Pradesh. They account for around half of overall production. Gibberellic acid (GA3) is a phytohormone required for plant growth and development in tiny quantities at low concentrations. So, in a given crop, advantageous conditions may be generated by exogenously injecting growth regulators like GA3 in the right concentration at the right time. Gibberellic acid is a plant growth regulator that can control a wide range of growth and development processes in a number of crops. GA3 improves plant

How to cite this article

Varada Raj, Rajesh Singh and Thakur Indu (2022). Effect of Plant Growth Regulators and Zinc Levels on Yield and Economics of Toria (Brassica rapa L.). Biological Forum – An International Journal, 14(1): 1582-1585.