Plant growth regulators: One of the techniques of enhancing growth and yield of Bangladeshi local cucumber variety (Cucumis sativus)

Albely Afifa Mir,Md Ruhul Amin,Md Nazrul Islam,Md Abu Sadat

doi:10.14719/pst.2019.6.2.534

Albely Afifa Mir, Md Ruhul Amin + Show 2 more

Open Access

https://doi.org/10.14719/pst.2019.6.2.534

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Abstract

Cucumber (Cucumis sativus) is becoming an essential part of the regular food menu for both health cautiousness and its dietary value over other foods. Availability of high yielding cucumber variety is one of the major obstacles for cucumber production in Bangladesh. Plant growth regulators (PGRs) play a significant role to alter the various type of physiological and morphological characters in cucumber. In this research, Bangladeshi local cucumber variety ‘Baromashi’ was used to observe the effect of PGRs on growth and yield-related characters. Four different treatments (Control: untreated plant, T1: maleic hydrazide 200 ppm, T2: ethephon 300 ppm and T3: NAA (1-naphthaleneacetic acid) 18 ppm) were used. Application of PGRs showed an increased number of primary and secondary branches however, negative effect on stem length and node for the first flower was also observed. PGRs showed the opposite effect on the time required for the first flowering where male flower needed more time and female flower required less time compared to the untreated plants. In the case of fruit-related characters, PGRs possessed positive effect and ethephon 200 ppm showed the best result among the treatments. Total yield might be directly related to the number of branches as well as with the number of female flowers in local cucumber variety.

Highlights

Plant growth regulators (PGRs) are known as short, simple chemicals, naturally produced by plants to alter the different characteristics of plants [1]
Effect of plant growth regulators was evaluated on the vegetative growth, flowering and yield contributing characters of cucumber (Cucumis sativus)
Among the plant growth regulators naphthaleneacetic acid (NAA) 18 ppm (T3) showed the highest stem length after the control in both 30 days after sowing (DAS) and 40 days after sowing (DAS), respectively. In addition to this maleic hydrazide (T1) showed the highest stem length after control at 50 DAS. These results indicated that PGRs might not involve in increasing plants height

Summary

Introduction

Plant growth regulators (PGRs) are known as short, simple chemicals, naturally produced by plants to alter the different characteristics of plants [1]. Very few researches were conducted to improve the femaleness and yield of a local variety of cucumber by using plant growth regulators. Effect of plant growth regulators was evaluated on the vegetative growth, flowering and yield contributing characters of cucumber (Cucumis sativus).

Results

Conclusion