Plant growth regulators: One of the techniques of enhancing growth and yield of Bangladeshi local cucumber variety (Cucumis sativus) (original) (raw)
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Archives of Agriculture and Environmental Science , 2020
This review provides a comprehensive overview of the basic and applied aspects of different plant growth regulators in the regulation of growth and development of cucumber plants. The study is completely based on the use of secondary sources of data; related journals, govern-ment institutes, and relevant reports. Foliar application of PGRs has been shown to change the physiological and developmental processes, including plant vegetative growth, sex expression, yield, and yield components in cucumber. There are basically two types of growth regulators; plant growth promoters such as auxin, gibberellins, cytokinins, maleic hydrazide, ethephon, etc. and plant growth inhibitors such as ethylene, abscisic acids, dormins, etc. The combined use of auxins and gibberellins result in increased secondary growth. Maleic hydrazide (MH) along with Ethephon at 100 ppm each increases the number of nodes and primary branches. Ethrel at 300-400 ppm retards the secondary development and increase femaleness, and at 200-300 ppm make fruit surface smooth. Silver nitrate (AgNO3) at 400 ppm enhances the maleness in cucumber. Application of Ethephon at 300 ppm reduces the harvesting time of the fruit. Salicylic acid (at 2 doses of 0.07 mm/l + 0.18 mm/l) increases chlorophyll content and its exogenous application increases the fruit yield. Maleic Hydrazide (MH) alone at 100 ppm increases the femaleness, inhibits apical growth at 50-100 ppm, and increases fruit size at 200 ppm. Therefore, various auxin [indole-3-acetic acid (IAA), NAA], auxin transport inhibitor (TIBA), cytokinins (KIN), gibberellin [gibberellic acid (GA3)], ABA, ethylene [(2-chloroethylphosphonic acid (ethrel; ethephon; CEPA)] and growth retardant (MH) have been applied to control the vegetative growth and to maximize yield of cucumber. Numerous obstacles have hindered the quality cucumber production in Nepal; like environmental stress-es, biotic and abiotic constraints, pest and disease outbreaks, and many others. The use of exogenous plant growth regulators has been crucial to Nepali cucumber producers as plant growth regulators has hasty effect on vegetative as well as the quality yield of plants. This study aims to reveal the suitable concentrations for the applications of growth regulators so that the use of such regulators is environmentally and toxicologically safe for both plants and the consumers.
Journal of Pharmacognosy and Phytochemistry, 2020
An experiment was conducted during 2018-19 at JNKVV College of Agriculture, Tikamgarh (M.P.) to study the Influence of plant growth regulators (PGRs) on growth parameters and sex ratio in cucumber (Cucumis sativus L.)” cv. Kumud f1 hybrid. Total nine treatments of the growth regulators viz, GA3 50, 100, 200ppm, NAA 50, 100, 200 ppm, Ethrel 100, 200 ppm and control were applied in Randomized Block Design with replicates three. Foliar applications of all treatments were given at 2-true leaf to 4-leaf stages during the morning period. Out of these treatments GA3 @ 200 ppm had maximum effect on growth parameters viz., vine length (132.44 cm), number of branches (6.81), number of nodes (22.67), and number of leaves (57.67). Sex ratio was recorded minimum in the treatment Ethrel @ 200 ppm (1.73:1).
International Journal of Environment and Climate Change
An experimental trial was carried out during the season from March 2018 – June 2018 at the Horticulture farm of Lovely Professional University, Phagwara (Punjab). utilising a randomised block design, the experimental trial consists three replications. The current study included eleven treatments, including a control with different PGR dosages of Maleic hydrazide (200, 250, and 300 ppm, MH), Naphthalene acetic acid (50, 100, and 150ppm, NAA), and Gibberellic acid (50,100 and 150 ppm, GA3). Based on the results of the experiment, it was concluded that the treatment T8 (100 ppm GA3) significantly affected the cucumber's fruit yield parameters and treatment T7 (50ppm GA3) showed the better results in quality attributes Viz., TSS and fruit texture.
Effect of Plant Growth Regulators on Yield and Quality of Cucumber (Cucumis sativus L
International Journal of Plant & Soil Science, 2023
The study investigated the effect of plant growth regulators (PGRs) on the yield and quality of cucumber (Cucumis sativus L.) to explore its production potential conducted during the summer season of 2020 at the College farm, College of Horticulture, Sardarkrushinagar Dantiwada Agricultural University, Jagudan. The experiment followed a randomized block design (RBD) with three replications and ten treatments which including different concentrations of gibberellic acid (GA3), Naphthalene acetic acid (NAA) and ethrel viz., T1: Control (Water spray), T2: NAA at 50 ppm, T3: NAA at 75 ppm, T4: NAA at 100 ppm, T5: GA3 at 20 ppm, T6: GA3 at 40 ppm, T7: GA3 at 60 ppm, T8: Ethrel at 100 ppm, T9: Ethrel at 200 ppm, and T10: Ethrel at 300 ppm were applied at the 2-4 true leaf stages. Treatment T10 (Ethrel @ 300 ppm) exhibited the highest number of fruits per vine (14.13), while T4 (NAA @ 100 ppm) showed the maximum number of pickings (8.59). GA3 @ 40 ppm (T6) recorded the highest fruit yield per vine (1.87 kg), Fruit yield per plot (28.29 kg) and Fruit yield per hectare (251.50 q). Additionally, Treatment T6 produced fruits with the longest length Original Research Article
HortScience
The effects of exogenous application of plant growth regulators (PGRs) were evaluated on both field performance and in vitro gynogenesis of ‘Chai Lai’ and ‘Big C’ cucumber (Cucumis sativus L.). Plants were sprayed with two concentrations of N6-furfuryladenine [kinetin (KIN); 2 and 20 ppm], 2,3,5-triiodobenzoic acid (TIBA; 1 and 10 ppm), naphthaleneacetic acid (NAA; 10 and 100 ppm), abscisic acid (ABA; 2 and 20 ppm), thidiazuron (TDZ; 1 and 10 ppm), and maleic hydrazide (MH; 10 and 100 ppm) to assess their effects on vegetative growth and floral and yield related traits in the Winter of 2013 and in the Summer of 2014 compared with distilled water control. Meanwhile, the effects of two PGRs (KIN and TIBA) on cucumber gynogenesis were also investigated in vitro. Growth parameters and floral and yield-related traits were significantly affected by the various PGRs in both cultivars during both seasons. In both cultivars, the highest yield was obtained with the application of 10 ppm NAA d...
International Journal of Environment and Climate Change
The experiment was carried out at Horticulture Research Field, Department of Horticulture, during the year 2022. This experiment was conducted to find out the best performing genotypes in relation of growth, yield and quality of cucumber. Seven cucumber genotypes such as IET, 2021/CUCUVAR-1,2,3,4,5,6,7 and three check variety namely NAZIA,LHC-1395 and MALINI were studied at SHUATS, Prayagraj in randomized block design with three replications in 4.5 x 3.0 m plot during summer season 2022 to find out the best performing genotype in related to growth, yield and fruit quality traits. NAZIA was found with the maximum fruit weight (247.67g), Fruit length (18.37cm), Fruit yield per plot (43.64 kg), Fruit yield (326.40 q/ha). NAZIA was found superior based on overall performance in term of growth, yield and quality and highest net return (3,33,718 Rs/ha). The highest cost benefit ratio (3.14) was found in cucumber NAZIA variety.
Growth and yield of cucumber (Cucumis sativus L.) as
The growth and yield of Ashley variety of cucumber in response to the effect of farmyard manure and inorganic fertilizer NPK 20:10:10 was evaluated at the Teaching and Research Farm of the Ambrose Alli University, Ekpoma, Nigeria Lat 6°45’N and long 6°08’E. The farmyard manure was applied at the rates of 0, 5 and 10 t/ha and the inorganic fertilizer at 0, 100, 200, 300 and 400 kg/ha. The layout was a 3 × 5 factorial scheme with three replicates. The combined rates of farmyard manure at 10 t/ha × 400 kg/ha fertilizer increased the growth characters such as the vine length and the number of leaves. At 8 weeks after planting (WAP), the application of 10 t/ha of farmyard manure × 400 kg/ha of fertilizer gave the longest vine length of 276.93 cm and the highest number of leaves. The fruit length, fruit girth, fruit weight per plant and fruit weight per hectare were significantly influenced by the application of farmyard manure × fertilizer. The highest weight of 2.43 kg per plant and yield per hectare of 43,259 kg/ha were obtained with 10 t/ha farmyard manure and 400 kg/ha of fertilizer which were 166.42% higher than the control. Key words: Cucumber, farmyard manure, inorganic fertilizer, growth and yield.
Effect of plant growth regulators on cucurbits: A review
Journal of Pharmacognosy and Phytochemistry, 2020
Plant growth regulators are used to alter a crop by changing the rate or pattern, or both, of its response to the innate and exposed factors that govern development from seed germination to the new seed development through the various physiological as well as postharvest impact. Cucurbits are the major group of vegetables grown all over world and they are responsive crops towards the growth regulator. PGR’s play vital or key role in increase growth, yield and quality. The spray of GA3 50-100 ppm increases growth, number of male flowers and weight of fruits. Ethrel 400-500 ppm increased number of female flowers, enhanced maturity cycle and improve sex ratio by suppress the male flowers. Auxin 50-100 ppm has great influence on growth as well as ethrel improves the yield attributing parameters in cucurbits.
The present experiment was aimed to evaluate the effect of maleic hydrazide (MH) with the concentration of (i) Control: 0 ppm (MH0); (ii) 150 ppm (MH150), (iii) 250 ppm (MH250) and (iv) 350 ppm (MH350) at the three stages of (i) Seed soaking (SS), (ii) Vegetative (VS) and (iii) Flowering (FS) on physiological growth, sex expression and nutrient composition of cucumber (cucumis sativus). Sex modification and fruit setting was enhanced by MH. Number of leaves, leaf area and fruit yield were also remarkably increased except plant height after MH application at different stages. MH increased the dry biomass of fruit resulted from higher chlorophyll content in leaves transferred photosynthates to the fruit. Chlorophyll content and mineral nutrient concentration in fruits did not affect significantly by MH. As the effect on sex modification and yield attributes, MH @ 150 ppm at vegetative stage would be a good choice.