Influence of Foliar Feeding of NAA and Boron on Growth, Flowering, Fruiting, and Yield of Winter Season Guava (Psidium guajava L.) cv. L–49

Author: Dipankar Singh Badal and V.K. Tripathi

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Abstract

An experiment was carried out at Horticulture Garden, Department of Fruit Science, Chandra Shekhar Azad University of Agriculture & Technology Kanpur (U.P.), India, during two consecutive years i.e., 2018-19 and 2019-20 to assess the influence of foliar feeding of NAA and Boron on growth, flowering, fruiting and yield of winter season guava cv. Lucknow-49. The foliar application of micronutrients along with plant growth regulators plays an important role in manipulating many physiological phenomena, improving the yield and quality and enhanced the productivity of plants by fulfilling the nutritional needs of fruit crops. Sixteen treatments viz., four levels each of NAA (0, 50, 75, and 100 ppm) and Boron (0, 0.4, 0.6, and 0.8%) with their combinations were used, which were replicated thrice in FCRD. From the experiments, it is reported that spray of NAA @75 ppm individually, significantly maximized length of the shoot (16.97 and 17.04 cm), diameter of the shoot (0.40 cm during both the

Keywords

Guava, boron, NAA, Winter Season, Growth, Flowering, Fruiting and Yield.

Conclusion

Based on results obtained in the present investigation, it is concluded that the doses of NAA (75 ppm) and boron (0.6%) individually or in combination significantly maximized length of the shoot, diameter of the shoot, number of leaves with number of flowers per shoot, fruit percent, fruit retention per cent, number of fruits and fruit yield per branch with minimum fruit drop during both years of investigation in guava cv. L-49. Thus, in the light of the above achievement, 75 ppm NAA in conjunction with 0.6% boron may be recommended safely to the guava growers for profitable crop production under the Gangetic plains of India. The above recommendations if adopted systematically and correctly, possess the potential of improving the economy and prosperity of the country.

References

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How to cite this article

Badal, D.S. and Tripathi, V.K. (2021). Influence of Foliar Feeding of NAA and Boron on Growth, Flowering, Fruiting, and Yield of Winter Season Guava (Psidium guajava L.) cv. L–49. Biological Forum – An International Journal, 13(3): 387-391.