Plastic House Conditions Research Articles

Evaluation of specific combining ability and heterosis of 6 melon (Cucumis melo L. var. inodorus) self-pollinated lines at the 5th generation

The study was carried out from August 2022 to February 2023 at the Biotechnology Center of Ho Chi Minh City with the objective of determining inbred melon lines with high combining ability and heterosis. The experiment was executed in plastic house condition and laid out in a completely randomized design with single factor with 3 replications, including 16 treatments corresponding to 15 hybrid combinations from 6 melon self-pollinated lines at the 5th generation (S5) and Kim Hong Ngoc variety as control. The results indicated that the melon line DLE06 used as female showed a high positive specific combining ability (SCA) for both fruit weight and the Brix of fruit with the DLE04 line used as male (THL14). Two hybrid combinations with high heterosis for fruit weight and the Brix of fruit flesh, including THL11 (1416.7 g; 16.33%) and THL14 (1520.0 g; 16.57%). Briefly, THL14 shows good growth and development potential in plastic houses, with morphological characteristics meeting the consumers’ preferences, and has potential to be developed into a new variey for production.

Efficacy of some botanical insecticides against <em>Aphis gossypii</em> Glover (Hemiptera: Aphididae) on chrysanthemum

An evaluation of various botanical insecticides to control Aphis gossypii and its impact on aphid population dynamics on chrysanthemum plants was investigated. In order to control A. gossypii on chrysanthemum, the effectiveness of several botanical insecticides extracted from Melia azedarach, Toona sinensis, and Chrysanthemum cinerariaefolium was investigated in the current study. The research was carried out in the experimental field of the Indonesian Ornamental Crops Research Institute under plastic house conditions. Five concentrations, i.e., 1.5, 2.0, 2.5, 3.0, and 3.5 g/L of three plant extracts, M. azedarach, T. sinensis, and C. cinerariaefolium, were sprayed on chrysanthemum cultivar White Fiji after 28 to 84 days after planting. A. gossypii had a dynamic population that changed according to the plant’s developmental stages. In vegetative growth, the alate adult and nymphal stages were dominant, and the population of nymphs increased along the plant ages. The insect colonized young leaf surfaces in the terminal apices. During the reproductive stages, the population of alate adults diminished, and the distribution of the insect extended to mature, old leaves, flower buds, and bloomed flowers. The application of several botanical insecticides revealed various responses of aphid populations. Among the tested insecticides, C. cinerariaefolium extract at 3.0 and 3.5 g/L demonstrated the highest average percentage efficacy (76 and 72%) and was the most consistent in suppressing the population. The results of this study indicate the potential efficacy of botanical insecticides against A. gossypii suggesting a different approach to efficient and environment-friendly chrysanthemum pest management.

Evaluation of cucumber genotypes under plastic house and open field conditions in Lalitpur, Nepal

Evaluation of cucumber genotypes under plastic house and open field conditions in Lalitpur, Nepal

Breeding of some cucumber hybrids according to some water stress criteria under plastic houses conditions

The study was conducted at the College of Agriculture - University of Anbar during three agricultural seasons, the autumn of 2021 and the spring and autumn of 2022, with the aim of producing F1 hybrids of cucumbers for greenhouses that are resistant to drought stress. Four Gynoecious lines were used, which were planted in the autumn season 2021, and 12 reciprocal and reverse hybrids were produced by full Diallel-crosses, and then planted in the spring season 2022 for the purpose of performance evaluation. Three hybrids were selected that were superior in characteristics of growth and yield with the best parents and a certified hybrid for comparison (Kanz) planted in the autumn season 2022 in an experiment carried out within the design of split plots with two factors according to the randomized complete block design (RCBD) and with three replications. The first factor included 6 genotypes and the second factor included two levels of moisture depletion at 25% and 50% of the available water calculated on the weight method, and the results were as follows. The results of evaluating the performance of the produced combinations showed the superiority of three hybrids, 4×1, 4×3, and 1×4, as they recorded distinct yields of 4.97, 4.38, and 4.20 kg plant-1 respectively. The same hybrids recorded a significant positive hybrid vigor of 34.84%, 18.91% and 14.03%, respectively. The same hybrids were introduced into the third season experiment with the two best parents, 4 and 1, and it appeared that the 4×1 hybrid excelled in plant yield, amounting to 4.06 kg plant-1, and recorded the best values in all studied stress tolerance criteria, as it reached 4.06 and 4.05 in MP and GMP criteria respectively, and in SSI, YR and TOL criteria, it recorded values of 0.70, 0.10 and 0.42, respectively, and in STI, HM, YI, and DI criteria, values of 1.22, 4.05, 1.22, and 0.94, respectively while the parent P1 recorded the lowest values in stress tolerance criteria. From study concluded that the differences in the chemical responses and the amount of production of cucumber, due to the genetic variation of the genotypes under study. Three locally produced hybrids achieved superiority in yield during high moisture depletion. We recommend preserving parents 1 and 4 due to their distinctiveness and using them to produce distinctive hybrids.

Impact of Nano-calcium Fertilizer on some Growth and Productivity Traits of Lettuce Grown under Unheated Plastic House Condition

Impact of Nano-calcium Fertilizer on some Growth and Productivity Traits of Lettuce Grown under Unheated Plastic House Condition

Reaction of soybean cultivars to two races of Meloidogyne enterolobii and their aggressiveness under plastic house conditions

Summary Limited information is available regarding the susceptibility or resistance of soybean cultivars to Meloidogyne enterolobii. Recently, a new race of this species was detected in Brazil parasitising cotton and soybean. This nematode has the potential to pose a problem in both of these crops, since it is pathogenic and virulent to several economically important plants that have resistance genes to other Meloidogyne species. The aim of this study was to assess the responses of EMBRAPA’s main soybean cultivars with confirmed resistance to M. incognita and M. javanica to the two races of M. enterolobii detected in Brazil. Additionally, this study aimed to characterise the aggressiveness of these nematode races. The experiments were conducted in a plastic house, in a factorial scheme with 16 soybean cultivars × two M. enterolobii races (guava and cotton), totalling 32 treatments × eight replications, and evaluated with two replications over time. Soybean sowing took place in pots containing 1.7 l of a mixture of soil, sand and Bioplant® substrate (1:1:1), previously autoclaved. Each soybean plant was inoculated with 5000 eggs of M. enterolobii. After 75 days for the first experiment, and 90 days for the second, the following variables were evaluated: gall index (GI), egg mass index (EMI), total number of eggs per g root (NEGR) and the reproduction factor (RF). Both races of M. enterolobii showed reproductive ability in all soybean genotypes (with or without known genetic resistance), albeit with moderate to low values in comparison to their reproduction on tomato plants. The race from cotton was considered statistically more aggressive than the guava population on soybean cultivars. Only ‘BRS 7180 IPRO’ was moderately resistant to both races in both experiments. In view of the importance and prospects for expansion of the soybean crop, the findings of this study contribute to a better understanding of the resistance and aggressiveness exhibited by the two races of M. enterolobii, Moreover, the study highlights the significant challenge that lies ahead in developing breeding programmes to select soybean genotypes with multiple resistance to Meloidogyne spp.

Evaluation of Growth, Yield and some Qualities Characteristics of Two Cherry Tomato (Solanum lycopersicum var. cerasiforme) Cultivars under Plastichouse Conditions

The study was conducted to evaluate growth, yield and some qualities traits of two cherry tomato cultivars, Gardeners Delight and Golden Sunrise during the year 2017-2018. The experiment was designed in Completely Randomized Block Design (RCBD) with three replications. Results revealed that Gardeners Delight showed the highest plant height (198.33 cm), number of nodes (38 nodes.plant-1). and no significant differences were found in chlorophyll content in leaves for both cherry cultivars. Concerning to yield traits, Gardeners Delight was superior to give the highest number of clusters, number of flowers set and yield (10.33 cluster.plant-1, 25 flowers.cluster-1 and 3240.50 g respectively). While Golden sunrise gave the highest fruit diameter and fruit weight reached 42.17 mm and 38.18 g respectively. Regarding to the quality parameters, maximum TSS 6.67 °Brix in Gardeners Delight compared to 5.10 °Brix in Golden Sunrise. Highest ascorbic acid and carotene content were recorded in fruits with Golden Sunrise while maximum lycopene content recorded in Gardeners Delight fruits.

Impact of Organic Fertilizer And Pruning on Growth And Yield of Sweet Pepper (capsicum Annum L.) under Plastic House Condition

Impact of Organic Fertilizer And Pruning on Growth And Yield of Sweet Pepper (capsicum Annum L.) under Plastic House Condition

Integrated Control of White Rot in Eggplant by using Pseudomonas flourescens, Penicillium Commune and Trichoderma asperellum in Iraq

The results of isolation and diagnosis of the fungus growing from Sclerotia and isolated from the infected explants showed that the pathogenic fungus Sclerotinia sclerotiorum was isolated. The results of the antagonistic ability test of the biological resistance elements against S.sclerotiorum gave a high antagonistic ability compared to the control treatment. The treatment of P.fluorescens gave the highest percentage of inhibition against the pathogenic fungus, followed by the treatment of P.commune and T.asperellum. The results showed the efficiency of biological resistance elements, including P.fluorescens, T.asperellum and P.commune, either singly or in combination with each other, in reducing the percentage of infection severity with S.sclerotiorum under plastic house conditions and in the greenhouse, where it amounted between 5.55-50 compared to the control treatment (pathogenic fungi alone), which amounted to 94.44% and under field conditions in the greenhouse, which amounted to 5.55-66.66% compared to the control treatment, which amounted to 83.33%. It provided good protection for eggplant, which was positively reflected on all plant growth parameters, in addition to an increase in the cumulative weight of eggplant fruits.

Sombreamento melhora a produtividade de berinjela e pimentão em casa-de-vegetação no verão

ABSTRACT Shading is a way of cooling in hot and sunny areas to modify the microclimate and improve crop growth. This study aimed to evaluate the effect of shading treatments on eggplant and sweet pepper growth, under plastic house conditions, at the beginning of the summer, when there are high temperatures and solar radiation intensity. The plastic covers were lifted at the beginning of April and the shading nets used in May and June. The shading treatment improved the plant height, vegetative weight, number of fruits per plant, fruit weight, plant yield and total yield per plastic house for both crops, especially for the sweet pepper. The sweet pepper hybrid (Charisma) and the local variety of eggplant showed the highest values for most of the studied characteristics.

Performance of some spherical eggplant hybrids under plastic house and open field conditions

Performance of some spherical eggplant hybrids under plastic house and open field conditions

Pollution by crude oil and used engine oil and their impact on growth and concentration of some nutrients elements of flax and safflower plants.

This study aim to show the effect of soil contamination with crude oil and its derivatives on the dry weight and Nutrient minerals on flax (Linum usitatissimum L.) and safflower (Carthamus tinctorius L.). This experiment was carried out in plastic pots and under Plastic house conditions, the treatment was carried out with crude oil, used car's engine oil and used generator's engine oil at three concentrations 1-2-3% for each treatment ,in addition to the comparison treatment. The results showed a significant decrease in the dry weight of the shoot systems of flax and safflower when treated with crude oil at a concentration of 3% amounted to 0.043-0.124 g, respectively, and the dry weight of the root systems amounted to 0.022-0.015 g, respectively. There was also a significant decrease in the concentration of calcium in the shoot system of flax and safflower plants when treated with crude oil and used generator oil at a concentration of 3% amounted to (1,900-1.950) mgg, respectively. The calcium concentration has also decreased in the root system of flax and safflower plants when treated with used generator and car oil at the concentration 3% amounted to 1.500-1.600 mgg, respectively. Potassium concentration decreased in the shoot and root systems of flax and safflower plants when treated with generator engine oil and crude oil at a concentration of 3% and reached 6.900-10.45 and 4.150-8.800 mgg, respectively, compared to the control treatment and other treatments

Flower and fruit development of a low-chill peach, ‘KU-PP2’ in plastic houses with and without heating

Although ‘KU-PP2’, a low-chill peach cultivar, was released for high-quality peach production under forcing culture, the performance of ‘KU-PP2’ trees under forcing conditions has yet to be determined. In this study, we investigated the spring phenology, fruit development, and fruit quality of ‘KU-PP2’ in a heated plastic house compared with the same traits in an unheated plastic house and open field conditions. We found that the forcing conditions accelerated the spring phenology and harvest period of ‘KU-PP2’. Heated conditions shortened the number of days from dormancy release to blooming and the length of the fruit development period, resulting in the blooming of flowers in late February, with fruit begin harvested as early as mid-May, which was notably earlier than blooming and fruit harvest under natural conditions by 4 and 6 weeks, respectively. Similarly, the unheated conditions accelerated the time to blooming and harvest by up to 3 and 4 weeks, respectively compared with the open field conditions. However, although the fruit produced by trees raised in the heated plastic house could be harvested at an earlier date, the amount of fuel used for the heating system was 50 L per tree, which could be prohibitively expensive for commercial production. Although the fruit growth pattern did not differ significantly between the forcing and natural conditions, the rate of fruit growth at stages S1 and S2 was higher in the heated plastic house than that under the other assessed conditions. Furthermore, the size and quality of fruit obtained under forcing conditions were slightly larger and superior, respectively, than those of fruit produced under natural conditions. Moreover, we found no evidence of split-pits under the forcing conditions. The findings of this study accordingly indicate that cultivation of the low-chill peach ‘KU-PP2’ under forcing conditions is conducive to a notably earlier harvest of fresh peaches. These observations advance our current understanding of the flowering, fruit development, and fruit production of low-chill peaches under forcing conditions.

Effect of Tomato Yellow Leaf Curl Virus Infection on Some Growth Indicators of Pepper Hybrids Grown Under Plastic House Conditions in Lattakia Governorate, Syria

Hamdan, R.S., I.D. Ismail and I. Akel. 2021. Effect of Tomato Yellow Leaf Curl Virus Infection on Some Growth Indicators of Pepper Hybrids Grown Under Plastic House Conditions in Lattakia Governorate, Syria. Arab Journal of Plant Protection, 39(4): 309-316. https://doi.org/10.22268/AJPP-39.4.309316 This study aimed to evaluate the effect of Tomato yellow leaf curl virus (TYLCV) infection on some growth parameters of several pepper hybrids grown under protected cultivation along the Syrian coast. Four pepper hybrids (Capsicum annum) were tested, two hot (Lahab, Sirad) and two sweet (Nevada, Dallas) peppers. The research was carried out during the 2020-2021 growing season in a plastic house at the Agriculture Scientific Research Center in Lattakia, using a randomized complete block design, with 8 treatments, three replicates and 5 plants per replicate. The results obtained showed that the sweet pepper hybrids (Nevada, Dallas) were more sensitive to infection with Tomato yellow leaf curl virus than the hot pepper hybrids (Lahab, Sirad), without significant differences among them. The pepper hybrid Nevada did not show any apparent symptoms, and the effect of the virus on some growth parameters (number flowers, flower setting, and the leaf surface area) was evident in comparison with other hybrids, but the differences were not significant. The Dallas, Sirad and Lahab pepper hybrids showed visible symptoms in response to infection with infection rate of 93.33%, 80% and 80%, respectively. The effect of virus infection on the growth parameters of these hybrids was variable. The reduction in the flowers number of Nevada, Dallas, Cirad and Lahab after 45 days of infection was 33%, 31.10%, 10.23% and 5.07%, respectively, and also with a reduction in the number of flowers setting of 77.39%, 20.87%, 23.33% and 66.68%, respectively. The same was true for the leaf surface area, where reduction rate for the Nevada, Dallas, Sirad and Lahab hybrids 30 days after infection was 48.17%, 53.06%, 16.45% and 36.6%, respectively. Keywords: Tomato yellow leaf curl virus, pepper hybrids, growth parameter, host resistance, protected agriculture.

Response of Cherry Tomato to Foliar Spray of Amino Acid, Bio-Catalyst and Dotted Type in Qualities and Evaluation of Drip Irrigation System

The experiment was conducted in the winter season of 2020 at the Agricultural Research and Experimentation Station of the Faculty of Agriculture, the University of Kirkuk under non-warm plastic house conditions and the study included three factors, the first factor, the type of dotted in the main plot (GR, Turbo, Spiral) and the second factor spraying with determination arginine subplot of concentrations. 300 mg/L and the third factor spraying with Bio-Catalyst Hortiboots10Sub subplot with concentrations (0,5, 10) ml/l and interaction between them in the specific qualities of the cherry Lycopersicon esculentum. L And evaluates the drip irrigation system carried out the working experiment according to the design of the full random sectors R.C.B.D and by arranging the system of dissident splinter panels Split Split Plot and four replication.The results show The amino acid arginine at a concentration of 300 mg/L was significantly superior to the content of lycopene and vitamin C in the fruits and the number of fruits amounted to 29.28 mg/100g, 17.22 mg/100gm, 76.84 fruits/plant compared to control, which amounted to 22.65 mg/100gm, 12.39mg/100gm, 65.18 fruits/plant As for the effect of spraying with humic acid, we notice that 10 ml/liter of humic acid has the highest percentage in the content of vitamin C in fruits, and the number of fruits reached 17.40 mg/100 g and 74.80 fruits/plant and for the effect of the emitter type, the Spiral was superior to the vitamin C content of fruits, which amounted to 21.00 mg/100 g, while the superiority of the emitter GR in the number of fruits was 85.97 fruits/plant.

Influence of Organic Fertilization, Liquorice, and Bread Yeast Extracts Spray in Some Growth and Yield Properties of Cucumbers Under Unheated Plastic House Conditions

A field study was carried out in unheated plastic house A field study was carried out in the unheated greenhouses of the Department of Horticulture and Landscaping at the College of Agriculture, University of Anbar, at longitude 43.31 and latitude 33.42, to evaluate the effect of adding levels of organic manure (poultry manure) to the soil (weight to weight) and foliar application by spraying liquorice and bread yeast extract on cucumber growth and yield. The study included adding poultry manure to the soil at three levels, 2, 3 and 5%, with spraying two concentrations of liquorice, 2.5 and 5 g liter-1, with or without bread yeast extract 1:10, in addition to control treatment (without addition), and the mineral fertilization treatment according to the fertilizer recommendation. The experiment was carried out according to a Randomized Complete Block Design (R.C.B.D) with three replications, and the treatments means were compared using Least Significant Difference Test (L.S.D) at the probability level of 0.05. The results showed that: organic fertilization of poultry manure 2% + liquorice extract 5 g. L-1 recorded a highest leaf area 1435.9 dcm2, and highest plant height (190.0 cm). While the use of poultry manure 3% + liquorice extract 5 g. Liter -1 gave the highest relative content of chlorophyll in leaves (84.47 Spad), whereas the control treatment gave the highest percentage of dry matter in the plant (12.54%). The treatment of poultry manure 2% + liquorice extract 2.5 g. Liter -1 gave the largest number of fruits (14.5 fruits plant-1), the highest yield per plant (1.228 kg. plant-1, the highest total yield of 1.228 tons Plastic house-1, and the lowest nitrates concentration in fruits (9.541 mg kg-1). whereas the treatment of poultry manure 2% + liquorice extract 2.5 g. 1 liter-+ bread yeast extract 10:1. gave the highest fruit weight of 88.76 g. The treatment of poultry manure 5% + liquorice extract 2.5 g. Liter -1 achieved the highest nitrogen concentration of 1.758%, and the highest potassium concentration of 6.200% in the fruits. While the treatment of poultry manure 5% + liquorice extract 2.5 g. Liter -1 + bread yeast extract 10:1 gave the highest phosphorous percentage of 0.850% in fruits.

Evaluation of Cucumber Hybrids for Yield and Quality Under Plastic House and Open Field Conditions

Low yield of off-season cucumber due to use of open-pollinated varieties with high male to female ration, long gestation period and high incidence of diseases are the major problems of cucumber production in Nepal. The use of imported hybrids varieties during the off-season and plastic film technology has shown to lead to enhanced growth and higher yield in recent years. However, there is a little work on hybrid cucumber research and their testing in Nepal. Therefore, experiments were conducted at the National Horticulture Research Center (NHRC), Directorate of Agricultural Research (DoAR), Tarahara and Farmer's field in Dhankuta district accordingly to select best hybrids. Sixteen genotypes including best Indian hybrid Dynasty and 3 open-pollinated check genotypes were evaluated at NHRC, Khumaltar during the years 2018 and 2019 in Randomized Complete Block Design (RCBD) with three replications under the plastic house. Previously selected seven genotypes were evaluated in DoAR, Tarahara in 3 replications and best hybrid was compared with farmers' varieties in Dhankuta at open field conditions. Tested genotypes showed a significant difference in yield and other parameters like male to female ratio, early flowering, vine length, disease scoring etc. both under the plastic house and open field conditions. The new hybrids HRD CUM 009 x 003 (107.05 mt/ha), HRD CUM 006 x 003 (91.55 mt/ha) and HRD CUM 004 x 001(88. 10 mt/ha) were promising due to higher yield, earlier to 50% female and male flowering, a greater number of female flowers, short vine length, higher number of fruits per plants and earliness harvesting than other cultivated varieties. Most of the tested hybrids produced more than double yield than open-pollinated genotypes.

Effects of Several Botanical Insecticides Applied in Different Periods to Control Aphids (Macrosiphoniella sanborni Gillete) on Chrysanthemum

Pest management in the agricultural process has faced worldwide economic and ecological issues related to chemicals usage. Botanical insecticides have long been considered promising alternatives to control pests because botanicals reputedly pose a minor threat to the environment and human health. Some studies have evaluated several botanical insecticides to control aphids in chrysanthemum. The research was conducted under plastic house conditions at the Indonesian Ornamental Crops Research Institute from January to December 2018. Leaf extract of T. sinensis, T. diversifolia and A. indica at the concentration of 3 and 3.5 g/l, processed oil of C. nardus at the concentration of 2.5 and 5 g/l and synthetic insecticide Imidacloprid 1 g/l were sprayed in the morning or late afternoon. The results showed that aphid attacks severity and percentage of attacked plants were lower when the insecticides were applied in the late afternoon. Slightly softer than synthetic chemicals, the leaf extract of T. sinensis at 3 g/l suppressed the aphid development more effective for about 55.93% than other botanicals treatments. On reproductive properties, the leaf extract of T. sinensis at 3 and 3 g/l and T. diversifolia at 3 g/l induced a higher percentage of open flower for more than 65% than synthetic insecticides, Imidacloprid.

Use of α -Lactalbumin, β -Lactoglobulin and Lactoferrin for Controlling Cucumber Powdery Mildew Disease under Plastic House Conditions استخدام α-lactalbumin و β-lactoglobulin و lactoferrin في مکافحة مرض البياض الدقيقي للخيار تحت ظروف الصوب البلاستيکية

The effect of native cow’s whey and whey proteins α-lactalbumin, β-lactoglobulin, and lactoferrin was studied under the plastic house conditions for controlling the cucumber powdery mildew disease caused by Sphaerotheca fuliginea (Schlecht.) Pollaci, prophylactically and curatively sprays application during 2019 and 2020 growing seasons with improvement the total cucumber product (yield/plant). Disease severity percentages, area under disease progressive curve (AUDPC), final disease severity, efficacy percentage, microscopic observations, growth parameters, yield components and enzyme activities were investigated. Obtained results of prophylactically application indicated that the disease severity was decreased significantly (P ≤ 0.05) by the application of whey 40% dilution which scored 10 and 6%, followed by a mixture of β-lactoglobulin + α-lactalbumin + lactoferrin (10.4 and 6.4%), and lactoferrin (20.3 and 16.4%), compared to Topas 100 (9.3 and 4.3%) and control treatment (62.3 and 59.1%) during 2019 and 2020 growing seasons respectively. Furthermore, disease severity percentages were higher through curatively application than prophylactically. Consequently, the final disease severity, AUDPC values were decreased, while efficacy percentage, growth parameters, yield components and enzyme activities were increased during the experiment period with the selected treatments either under prophylactically or curatively application during the two successive growing seasons. Photography of light and scanning electron microscopy showed that the selected treatments affected the fungal hyphae, conidiophores and conidia at 24 hr after the application of selected treatments

Effect of Harvesting of Fruits at Different Maturity Stage on the Production of Cucumber (Cucumis sativus L) Under Plastic House Condition

The experiment was carried out from 16th December 2016 to May 10, 2017, in the horticulture farm of Nepal Polytechnic Institute Bharatpur-11. Cucumbers were planted under plastic house conditions (23.90 ± 3.55 ?C temp. and 59.15 ± 10.33% RH). Parthenocarpic cucumber variety Poyraz F1 was selected for the research. Fruits are harvested at four different maturity stages (Maturity stage 1, 2, 3, and 4) were treatments i.e. M1 – Immature stage 1 (harvesting of fruits after 2 weeks of fruit set), M2 – Immature stage 2 (harvesting of fruit after 3 weeks of fruit set), M3 – Mature stage (harvesting fruits after 4 weeks of fruit set) and M4 – Over-mature stage (harvesting fruits after 5 weeks of fruit set). Each treatment was replicated 5 times with 5 plants in each experimental unit and these experimental units were arranged in a completely randomized design. There was a significant difference among the selected treatments in the number of flowers per plant at 30, 45 & 60 DAT, the number of internodes per plant at 45 & 60 DAT, numbers of fruits per plant at 30, 45 & 60 DAT and number of harvest per plant. The total yield per plant was observed as not significant. Highest no. of flowers (6.88, 15.52 and 5.83 at 30, 45, and 60 DAT), nodes (5.44, 6.76, 10.53 and 15.53 at 15, 30, 45 and 60 DAT) and fruits (1.4, 5.6, 15 and 25.2 at 15, 30, 45 and 60 DAT) per plant were recorded in the plant in which fruits were harvested at immature stage 1 (harvesting fruits at 2 weeks of fruit set) whereas their values were minimum in the plants in which fruits were harvested at over-mature stage (harvesting fruits at 5 weeks of fruit set). A maximum number of harvests (6.40) were recorded in the plants in which fruits were harvested at an earlier maturity stage. Yield per plant did not vary significantly. Hence, it would be better to harvest cucumbers at an immature stage as the fruit harvested at an earlier stage of maturity had more number of harvests and the producer could enjoy the diffe