Effect of Plant Growth Regulators on Fruit-set and Quality of Guava

Authors

  • Shreef Mahmood Department of Horticulture, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200
  • Md. Nazmul Hasan Department of Horticulture, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200
  • S.M. Younus Ali Department of Horticulture, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200
  • Rafija Alam Ripa Department of Horticulture, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200
  • Md. Golap Hossain Department of Horticulture, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200

DOI:

https://doi.org/10.24925/turjaf.v4i12.1088-1091.799

Keywords:

Gibberellic acid, β-naphthoxyacetic acid, fruit-set, quality, guava

Abstract

Two plant growth regulators: β-NOA (50 and 80 ppm) and GA (200 and 250 ppm) were applied to emasculated flowers at anthesis to set parthenocarpic fruit, while in the control treatment fruit set was achieved by natural pollination. The application of β-NOA found ineffective in setting parthenocarpic guava. No significant differences were observed in the length and diameter of fruit between parthenocarpic and naturally pollinated seeded fruit at different days after anthesis. The mean fruit weight, TSS and ascorbic acid content of parthenocarpic fruit were similar to that of seeded fruit. Significant higher amount of total polyphenol was detected in the seeded fruit than the parthenocarpic fruit. Although 200 ppm GA showed comparatively better response to fruit growth, TSS and ascorbic acid content than 250 ppm GA but not in a statistical level.

Author Biographies

Shreef Mahmood, Department of Horticulture, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200

Associate Professor, Department of Horticulture

Md. Nazmul Hasan, Department of Horticulture, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200

Postgraduate student, Department of Horticulture

S.M. Younus Ali, Department of Horticulture, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200

Postgraduate student, Department of Horticulture

Rafija Alam Ripa, Department of Horticulture, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200

Postgraduate student, Department of Horticulture

Md. Golap Hossain, Department of Horticulture, Hajee Mohammad Danesh Science and Technology University, Dinajpur 5200

Postgraduate student, Department of Horticulture

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Published

01.12.2016

How to Cite

Mahmood, S., Hasan, M. N., Ali, S. Y., Ripa, R. A., & Hossain, M. G. (2016). Effect of Plant Growth Regulators on Fruit-set and Quality of Guava. Turkish Journal of Agriculture - Food Science and Technology, 4(12), 1088–1091. https://doi.org/10.24925/turjaf.v4i12.1088-1091.799

Issue

Section

Agricultural Technologies