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Effect of Paclobutrazol on Vegetative and Reproductive Phenology of Chickpea (Cicer arietinum L.)

Author: Sumanta Panda, Subhasis Mondal, Suryakant Hembram, Kousik Atta and Osman Ali

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Abstract

Chickpea (Cicer arietinum L.) is the most important pulse crop in India. In spite of the impressive status of India in chickpea cultivation, its national yield is 956.4 Kg ha-1 which is poor compared to the corresponding figures for China (5.45 tonnes. ha-1) or Moldova (4.08 tonnes ha-1). Paclobutrazol is a widely used growth retardant that was reported to successfully enhance yield, regularize fruit-bearing, change the fruiting season, fruit quality etc. At the biochemical level, it acts as an inhibitor of gibberellin biosynthesis. The experimental material for the study consisted of chickpea variety i.e., JAKI 92-18 with six treatments; 0 (control), 25, 35, 45, 55, and 65 ml/ ha. Paclobutrazol caused to delay in the appearance of floral bud, flower and pod formation though did not lengthen the attainment of physiological crop maturity. Paclobutrazol caused to reduced plant height, and no primary and secondary branches but enhanced no flower pod setting and pod at maturity though caused to decline in the proportion of the contribution of the secondary branches. The main challenges in this experiment were the concentration of paclobutrazol and the crop growth stage in which the effect could be remarkably distinguishable. The highest yield was obtained in paclobutrazol 35 ml/ha; other treatments with substantially higher yield than control were paclobutrazol 45 ml/ha, and paclobutrazol 25 ml/ha at the vegetative stage.

Keywords

Chickpea, Paclobutrazol, Phenology, Reproductive, Vegetative, Yield

Conclusion

The highest yield was obtained in paclobutrazol 35 ml/ha; other treatments with substantially higher yield than control were paclobutrazol 45 ml/ha, and paclobutrazol 25 ml/ha at the vegetative stage.

References

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How to cite this article

Sumanta Panda, Subhasis Mondal, Suryakant Hembram, Kousik Atta and Osman Ali (2023). Effect of Paclobutrazol on Vegetative and Reproductive Phenology of Chickpea (Cicer arietinum L.). Biological Forum – An International Journal, 15(4): 609-612.