Cucumber Seeds Research Articles

Evaluation of Some Biological and Chemical Elements in Controlling Some Soil-borne Fungi and Stimulating Plant Growth

This study was conducted to evaluate the efficacy of the biocontrol fungi Chaetomium cupreum, Trichoderma viride, and Saccharomyces cerevisiae and some chemical nutrients that stimulate plant growth, such as calcium nitrate, ammonium phosphate, aqueous magnesium sulfate, copper and boron in controlling some common soil-borne pathogenic fungi and evaluating their role in stimulating plant growth. All the bioagents showed significant antagonistic efficiency In vitro against the pathogenic fungi Drechslera Halodes, Fusarium oxysporum, Fusarium solani, Macrophomina phaseolina, Pythium aphanidermatum and Rhizoctonia solani. Under greenhouse conditions, BC treatment composed of biological and chemical elements, achieved the highest germination rate for tomato, cucumber and cowpea seeds inoculated with the pathogenic fungi, and reached 95.83-100.00% compared to 36.67- 47.50% for the control treatment. BC treatment also excelled in reducing disease incidence and severity, as the disease rate reached 0% compared to 95.83-99.17 % for the inoculated control treatment, and without significant difference with the non-inoculated (healthy) control. In addition, the BC treatment produced 0 % disease severity rate as compared to 82.58-85.83% for the inoculated control, and without significant difference with non-inoculated control. Furthermore, the BC treatment was superior to the rest of the treatments in increasing dry weight of all the plant species tested. Keywords: Chaetomium cupreum, Trichoderma viride, Saccharomyces cerevisia, Soil-borne fungi, biological control.

POTENSI ALELOKIMIA DARI EXTRACT DAN MULSA BIOMAS TANAMAN SORGUM (Sorghum bicolor L. Moench)

[ALLELOCHEMICAL POTENTIAL OF AQUEOUS EXTRACT AND MULCH OF PLANT BIOMASS OF SORGHUM (Sorgum bicolor L. Moench)]. This study was aimed to examine the allelopathic potential of sorghum through aqueous extract and mulch from biomass on seed germination and early growth of three tested plants, namely rice, mustard and cucumber. The results showed that the aqueous extract of the sorghum biomass significantly inhibited the germination of mustard and cucumber seeds, reduced the vigor-index of the germination of rice, mustard and cucumber seeds, and suppressed the growth of radicle length of mustard sprouts. The same thing was seen when sorghum biomass was tested as mulch which also suppressed the early growth of the tested plants on the variables of stem height, fresh and dry weight of biomass of rice, mustard and cucumber. The higher the concentration of allelochemicals extract or sorghum mulch, the stronger the inhibition on germination and early growth of the three test plants. At a concentration of 10% allelochemicals suppressed the germination of mustard and cucumber to 76 and 79%, respectively, while a dose of 10% mulch suppressed early growth in the height of rice, mustard, and cucumber to 56, 55, and 68%; and dry weight to 53, 30 and 60%. The results of this study are important information about the allelochemical potential of sorghum as a natural herbicide in integrated weed management

One-Dimensional Convolutional Neural Networks for Hyperspectral Analysis of Nitrogen in Plant Leaves

Accurately determining the nutritional status of plants can prevent many diseases caused by fertilizer disorders. Leaf analysis is one of the most used methods for this purpose. However, in order to get a more accurate result, disorders must be identified before symptoms appear. Therefore, this study aims to identify leaves with excessive nitrogen using one-dimensional convolutional neural networks (1D-CNN) on a dataset of spectral data using the Keras library. Seeds of cucumber were planted in several pots and, after growing the plants, they were divided into different classes of control (without excess nitrogen), N30% (excess application of nitrogen fertilizer by 30%), N60% (60% overdose), and N90% (90% overdose). Hyperspectral data of the samples in the 400–1100 nm range were captured using a hyperspectral camera. The actual amount of nitrogen for each leaf was measured using the Kjeldahl method. Since there were statistically significant differences between the classes, an individual prediction model was designed for each class based on the 1D-CNN algorithm. The main innovation of the present research resides in the application of separate prediction models for each class, and the design of the proposed 1D-CNN regression model. The results showed that the coefficient of determination and the mean squared error for the classes N30%, N60% and N90% were 0.962, 0.0005; 0.968, 0.0003; and 0.967, 0.0007, respectively. Therefore, the proposed method can be effectively used to detect over-application of nitrogen fertilizers in plants.

Selection of sensitive seeds for evaluation of compost maturity with the seed germination index.

The seed germination index (GI) is a widely used indicator of compost maturity and is a required index in many national standards. However, seeds of different species vary markedly in sensitivity to the biological toxicity of compost. Therefore, suitable seed selection is essential for evaluation of compost maturity with the GI. This study systematically investigated the germination percentage and root length for seeds of 17 species incubated in deionized water for 48h at 25°C in the dark. Based on the germination percentage, seeds of eight species (white radish, cucumber, fruit radish, edible rape, round radish, hybrid cucumber, cress, and Chinese cabbage) were selected for determination of the GI of chicken manure composted with differing proportions of tobacco powder and mushroom substrate. The GI of hybrid cucumber seeds showed a significant positive correlation with temperature and pH, and a significant negative correlation with E4/E6 ratio and ammonium-nitrogen content. The change in GI of hybrid cucumber seeds during composting and the GI value at the completion of composting were consistent with other maturity indicators. Among the tested seeds, the biological toxicity of the compost was best characterized by hybrid cucumber seeds, which thus represented a sensitive and reliable seed suitable for evaluation of compost maturity with the GI.

Biostimulant application in the cultivation of cucumber (Cucumis sativus l.): A case study of Andijan region

This article describes the results of the conducted field experiment by using biostimulants “Uchkun”, “Super Uchkun”, “Gossipren” and “Verva” on cucumber varieties (Orzu) in Andijan region and the effect on the increase of productivity. It was revealed that the pre-sowing treatment of cucumber seeds with biostimulants promoted a significant increase in seed germination and growth processes. The most effective growth stimulant on Orzu cucumber was Super Uchkun. On average, the yield of cucumber when treated with biostimulants increased by 10.28%; 23.8%; 24.27% and 14.29%, respectively; while the yield increase was 1.3, 2.3, 2.7, and 0.9 t/ha, respectively.

The Use of Fermented Typha Domingensis Residues by Pleurotus Ostreatus as A bio-Fortification to Control Root Disease on Cucumber Caused by Rhizoctonia Solani

Cucumber is one of important crops and susceptible to root disease caused by Rhizoctonia solani. The study aimed to evaluate the efficiency of two isolates of P. ostreatus (Ah and Ak) and soil treatment with several rates of Typha domingensis residues fermented by P. ostreatus to control R. solani that causes root diseases on cucumbers. In vitro trails, R. solani inhibited significantly by isolate (Ah) as well as redial mycelial growth and the percentage of cucumber seeds germination. In field trails, the number of germinated seedlings was highest at fermented T. domingensis 59.81 compare to control treatment which was 59.81. Disease severity (DS) of root damage was recorded in R. solani and R. solani + Fermented T. domingensis treatments and reached 70.4 and 64.27 respectively.

Unrevealing the impact of pulsed electric fields (PEF) on cucumber seed vigour and surface disinfection

Abstract Chemicals used for seed treatments help to increase the agricultural production by preventing pests and pathogens but also cause environmental and health problems. Thus, environmentally-friendly technologies need to be developed for a seed treatment that inactivates surface microflora and improves seed vigor. One such pulsed electric field (PEF) treatment applied to cucumber seeds in the range of 1.07-17.28 Joule (J) significantly enhanced a mean germination rate (MGR) by up to 9%, a normal seedling rate by 25.73%, and a resistance to 100 and 200 mM salt stresses by 96% and 91.67%, respectively, with a stronger and faster growth of roots and seedlings. PEF treatment provided 3.34 and 3.22 log-reductions in the surface microflora of total mold and yeast and total aerobic mesophilic bacteria, respectively. The electrical conductivity (EC) values of the control samples increased over time, from 4 to 24 h. Those of the PEF-treated samples after 4, 12, and 24th hours were also more affected by the measurement time not by the PEF treatment. The joint optimization of 18 responses based on the best-fit Gaussian process model pointed to 19.78 s and 17.28 J as the optimal settings. The PEF treatment appeared to improve seed germination ability and stress resistance with the adequate inactivation of surface microflora.

The effect of abamectin seeds treatment on plant growth and the infection of root-knot nematode Meloidogyne incognita (Kofoid and White) chitwood

In this study, three concentrations (250, 500, and 1000 ppm) of abamectin 2% suspension concentration (SC) were used as cucumber seeds treatment. The seeds were treated with abamectin to reduce nematodes reproduction and their ability to penetrate the roots, then seed germination and plant growth were observed. All the concentrations didn’t negatively affect seeds germination wherever the germination percent reached 80% at the concentration (1000 ppm) after 20 days of sowing. The effect of abamectin on root-knot nematode was studied by recording numbers of nematodes in 100 g/soil, numbers of the galls, egg mass on the root, and the nematode reproduction factor. All concentrations significantly affected the nematode reproduction parameters compared to control. Abamectin at (500 ppm) was the most effective concentration on reducing nematodes parameters, i.e., 26.57, 38.83, 47.40 %, and 3.15 for the above-mentioned parameters, respectively at the end of experimint. No significant difference between 500 ppm and 1000 ppm. We recommended using the abamectin in (500 ppm) concentration as a seed application to controlMeloidogyne incognitain cucumber plants under greenhouse conditions to reduce its environmental toxic effect.

Effects of Graphene Oxide on Germination and Early Growth of Plants.

Owing to its excellent material properties such as large surface area and superb mechanical and thermal characteristics, graphene oxide (GO) is likely to be applied in a variety of environmental fields. These applications may lead to the entrance of GO in terrestrial ecosystems, but there is little research regarding the impact of GO on plants upon such entrances. To analyze the effects of GO on the germination and growth of various plants, the changes in lettuce, radish, perennial ryegrass, alfalfa, and cucumber seeds under GO treatment was studied. Germination rate and growth were analyzed after the seeds were exposed to GO at 0, 0.2, 0.4, 0.8, and 1.6 mg ml-1. For lettuce, the germination rate decreased with GO concentration. However, no significant effects were observed on the germination rate of other plants. On the other hand, the growth of lettuce, alfalfa, and radish decreased under GO treatment. For example, at 1.6 mg ml-1 of GO, the length of shoot and root of lettuce was shortened by 87% and 86%, respectively. Such results indicate that the germination and early growth of plants can be negatively affected in a species-specific manner under high concentrations of GO. Hence, we anticipate that our results may assist in supplementing the legal regulations for the proper disposal of nanomaterials.

Bioindication and biomonitoring assessment of the state of atmospheric air and soil in the study area

Monitoring of the natural environment and human habitat must be carried out to compare the ecological state of the contaminated area and places that are not subject to technogenic impact. The main purpose of this work is to assess the state of the atmosphere, hydrosphere and soil using bioindication and biomonitoring methods. Phytotoxicity is the property of the soil to inhibit the growth and development of higher plants due to its contamination with xenobiotics and other toxic substances. In this work, the phytotoxicity of the soil is determined during the experiment on germinating of cucumber and dill seeds. The number of germinated seeds is calculated on differentially polluted soils. A comparative analysis of the of seedlings length and mathematical processing of lengths seedlings data, depending on the level of soil contamination, are carried out.

Effect of water activated by non-equilibrium gas-discharge plasma on the germination and early growth of cucumbers

The article presents the results of plasma-chemical treatment of water and studies of its effect on the germination of cucumber seeds, as well as on the dynamics of the initial growth of 
 plants. Tap water was treated with a pulsed underwater discharge formed in vapor-gas bubbles near the surface of a graphite electrode immersed in water. The discharge burned at peak voltage values of 800 V and a discharge current of 200 mA. Oscillograms of the current and voltage on the electrodes were obtained, the values of the specific electrical conductivity of water, the pH value, the concentrations of nitrite and nitrate ions, and also hydrogen peroxide in the treated water were measured. It is shown that the application of the plasma treated water ncreases the seed germination, accelerates the development of the root system, the growth of stem and leaves at the early stages of plant development

Економічна й енергетична ефективність передпосівної обробки насіння огірків грибом Trichoderma viride

Goal. To give economic and energy assessments of pre-sowing treatment of seeds with Trichoderma viride fungus in the technology of growing cucumber in the open ground. Methods. Field experiments were performed following generally accepted guidelines. The economic and energy efficiency of pre-sowing treatment of cucumber seeds with the fungus Trichoderma viride was determined by methodological approaches based on comparing the result of a particular agricultural measure with the cost of its implementation. Prices for resources and agricultural products are taken at the average actual level according to available statistics. To assess the significance of the differences between the variants of the experiments, the smallest significant difference was calculated. Results. Pre-sowing treatment of seeds with the fungus T. viride 017 helped to reduce the unit cost by 777 UAH/t (26.5%), increase the notional profit by 36654 UAH/ha and increase the estimated level of profitability of cucumber production by 104.4 percentage points. The energy efficiency coefficient of the energy content of the main product for the pre-sowing treatment of cucumber seeds with the fungus T. viride 017 is 1.42 (44%). At the same time, the energy content of cucumber harvest increases by 39,650 MJ/ha (44.9%) due to increased yield. Conclusions. Based on the results of many years of field experiments, agricultural production is proposed to use pre-sowing treatment of cucumber seeds with the fungus T. viride 017, which is an economically and energetically feasible measure in the technology of growing crops.

Molecular identification and biological control of Ralstonia solanacearum from wilt of papaya by natural compounds and Bacillus subtilis: An integrated experimental and computational study

Ralstonia solanacearum is a harmful pathogen that causes severe wilt disease in several vegetables. In the present study, we identified R. solanacearum from wilt of papaya by 16S rRNA PCR amplification. Virulence ability of R. solanacearum was determined by amplification of approximately 1500 bp clear band of hrpB gene. Further, in-vitro seed germination assay showed that R. solanacearum reduced the germination rate up to 26.21%, 34% and 33.63% of cucumber, bottle guard and pumpkin seeds, respectively whereas shoot and root growth were also significantly decreased. Moreover, growth inhibition of R. solanacearum was recorded using antibacterial compound from medicinal plant and antagonistic B. subtilis. Petroleum ether root extract of Rauvolfia serpentina showed highest 22 ± 0.04 mm diameter of zone of inhibition where methanolic extract of Cymbopogon citratus and ethanolic extract of Lantana camara exhibited 20 ± 0.06 mm and 20 ± 0.01 mm zone of inhibition against R. solanacearum, respectively. In addition, bioactive compounds of B. subtilis inhibited R. solanacearum growth by generating 17 ± 0.09 mm zone of inhibition. To unveil the inhibition mechanism, we adopted chemical-protein interaction network and molecular docking approaches where we found that, rutin from C. citratus interacts with citrate (Si)-synthase and dihydrolipoyl dehydrogenase of R. solanacearum with binding affinity of −9.7 kcal/mol and −9.5 kcal/mol while quercetin from B. subtillis interacts with the essential protein F0F1 ATP synthase subunit alpha of the R. solancearum with binding affinity of −6.9 kcal/mol and inhibit the growth of R. solanacearum. Our study will give shed light on the development of eco-friendly biological control of wilt disease of papaya.

The exogenous menadiol diacetate enhances growth and yield by reducing Pb uptake, translocation and its toxicity through tissue nutrients acquisition in cucumber (Cucumis sativus L.)

The experiment was conducted to assess whether exogenous application of menadiol diacetate (MD, vitamin K 4 ) could alter nutrients acquisition and mitigate lead (Pb) toxicity in cucumber ( Cucumis sativus L.) plants. The seeds of cucumber were surface sterilized with 0.1% solution of HgCl 2 and primed in three different concentrations (0, 10, 20 μ M) of MD solution for 24 h. The primed seeds were sown in pots filled with sand having different Pb regimes (0 and 4 mM). After 35 d of germination, plants were harvested for biochemical and physiological parameters while the yield attributes were collected from 80 d of germination. The exposure to Pb reduced biomass, increased oxidants such as malondialdehyde (MDA) and hydrogen peroxide (H 2 O 2 ) and caused nutrients imbalance by decreasing K + , Fe and Ca 2 + ions in the shoots. Further, cucumber accumulated Pb mostly in the roots. However, the exogenous MD reduced oxidative stress and enhanced growth and yield under Pb stress that was linked with MD-mediated increase in photosynthetic pigments and tissue accumulation of beneficial osmolytes (soluble sugars) and nutrients (K + , Fe and Ca 2 + ) while reduction in the uptake of Pb in the roots and transport to the shoots and fruits. The results showed that MD not only enhances growth and yield through nutrients acquisition in cucumber but also decreases Pb accumulation in shoot and fruit, and thus could reduce Pb-driven health hazards in agricultural systems.

Electrical stimulation of Cucumis sativus in an Antrosol using modified electrodes with transition metal oxides at the in situ pilot level

Conventional agricultural systems can lead to degradation of the environment due to the high dependence on chemical fertilizers and pesticides; therefore, it is important to search for new technologies that help maintain the ecological balance. An example of this type of new technology is the electrofarming technique. This technology has been shown to improve the soil properties and the germination and growth processes of different types of plants. In this research, the effect of applying a low-intensity electric field using a 2D arrangement of electrodes with six modified IrO2-Ta2O5|Ti anodes around a bare Ti cathode as an in situ pilot level in 5.4 m3 of Anthrosol was determined. Electrofarming showed higher germination (59%) than farming (41%) after 18 days. This result validated the efficiency of the electrical stimulation of the seeds of cucumber in an Anthrosol with benefits on the physiological properties of cucumber plants (stem thickness, stem elongation, cotyledon length, true leaf size, root length), amount of biomass in the microbial population present in the soil (bacteria and fungi), as well as in its physicochemical properties (pH, soil organic matter, cationic exchange capacity, enzymatic activity, Ca+2, Mg+2, K+, and Na+), specifically in the area close to the anodes compared to farming.

Phytochemicals characterization of nutraceutical enriched fruits and nuts spread

The present study aimed to formulate a nutraceutical enriched fruits and nuts spreads and analyze the presence of phytochemicals in the formulated spread. The pumpkin seeds and cucumber seeds were roasted at 150° C for 15 mins and made into powder. The seed powder was mixed to the pulp of ?-carotene rich fruits like mango, papaya and muskmelon in order to make fruits and nuts spread. Treatments like Mango with pumpkin seed powder (T1), Papaya with pumpkin seed powder (T2), Muskmelon with pumpkin seed powder (T3), Mango with cucumber seed powder (T4), Papaya with cucumber seed powder (T5) and Muskmelon with cucumber seed powder (T6). The fruits and nuts spreads were analyzed for the presence of phytochemicals ?-carotene, polyphenols, tannins, flavonoids and antioxidant activity. The formulated fruits and nuts spreads were packed in polypropylene boxes, glass bottles and stored under refrigerated condition at 4°C. ?-carotene content was found to be high (634.21?g/g) in Mango with Pumpkin seed powder spread (T1), tannin content was higher (52.61 mg/g) in Papaya with Pumpkin seed powder spread (T2), flavonoid components were higher (3.25 mg/g) in Mango with Pumpkin seed powder spread (T1), and polyphenols content were found to be high (59.33 mg/g) in Papaya with Cucumber seed powder spread (T5). The antioxidant property was high in the Mango with Pumpkin seed powder spread (T1) when compared to all other treatments. Pumpkin seeds comprised of excellent amount of bioactive compounds. The pumpkin seed incorporated spread showed a high level of phytochemicals when compared to other spreads. This was ready to eat spread which had 3 months of shelf life under refrigerated condition is preferred for people of all age groups.

Comparative physicochemical analysis of seed oils of wild cucumber (Cucumis sativus var. hardwickii (Royle) Alef.), cucumber (Cucumis sativus L. var. sativus), and gherkin (Cucumis anguria L.)

To determine the suitability of wild cucumber as a natural resource of seed oil, we assessed the chemical composition of seeds and seed oils from wild cucumber (Cucumis sativus var. hardwickii (Royle) Alef.) and compared them with those of cucumber (Cucumis sativus L. var. sativus) and gherkin (Cucumis anguria L.). Wild cucumber, cucumber, and gherkin seeds contained 21.04, 23.87, and 21.32 g 100 g−1 of oil, respectively, and were rich in proteins, carbohydrates, minerals, and fiber. Free fatty acids, iodine value, peroxide value, acid value, saponification, and ester values of wild cucumber seed oil were 1.12%, 124.45 mg 100 g−1, 0.84 meq O2 Kg−1, and 2.24, 140.25, and 138.0 mg of KOH g−1, respectively. The main fatty acid in seed oils was linoleic acid, followed by oleic, palmitic, and stearic acids. Thus, wild cucumber seeds are an alternative source of vegetable oil, a potential raw material in food applications.

Increasing the antimicrobial activity of Pseudomonas brassicacearum S-1 by inactivation of lysR3 and mtfA genes

Site-specific markerless inactivation of genes lysR3 and mtfA of bacteria Pseudomonas brassicacearum S-1 was carried out. It was shown that strains P. brassicacearum S-1-lysR3, P. brassicacearum S-1-mtfA and P. brassicacearum S-1-lysR3-mtfA demonstrate increased antagonistic activity against a number of phytopathogens 1.2–1.6 times higher compared with the original strain. In the laboratory experiment, mutant variants did not affect growth and development of tomato, cucumber and parsley plants. Treating tomato and cucumber seeds with a solution of the culture of the strain P. brassicacearum S-1-lysR3-mtfA led to the increase of seedlings roots length by 1.4 times compared with the original strain. We also determined that the examined strains were able to survive in the soil microbial consortium.

ПОРІВНЯЛЬНА ДІЯ СИНТЕТИЧНИХ РЕГУЛЯТОРІВ РОСТУ РОСЛИН НА АСИМІЛЯЦІЙНІ ПРОЦЕСИ ТА ПРОДУКТИВНІСТЬ ОГІРКА ПОСІВНОГО (CUCUMIS SATIVUS L.). СОРТОТИПУ НІЖИНСЬКИЙ

Cucumbers are a common vegetable crop in the world, so increasing its yield is an urgent issue. The effect of Rival and Rist-concentrate on the assimilation processes of cucumber in the phases of three true leaves and flowering in the open ground was studied. It was found that in the phase of three true leaves, pre-sowing treatment of cucumber seeds with Growth-Concentrate increased the value of the area of the cucumber leaf blade by 12.2 % compared to the control indicators. In the flowering phase, Rival and Rist-concentrate showed higher efficiency, stimulating the growth of the area of the cucumber leaf blade by 13.1 % and 16.7 % compared to the control indicators. Studies of the total area of the leaf apparatus of cucumber in the phase of three true leaves showed that the values of the area of the leaf apparatus of cucumber, the seeds of which were treated with Rival and Rist-concentrate exceed control by 34.8 % and 27.8 %, respectively. In the flowering phase, Rival and Growth-concentrate stimulated an increase in the area of the leaf apparatus by 21.4 % and 25.6 % compared to the control indicators. It was found that after measuring the content of chlorophyll in the tissues of cucumber leaves in the phase of three true leaves, the control value for the sum of chlorophyll а and b was 2.32 mg/g of raw mass, chlorophyll a – 1.51 mg/g of raw mass, chlorophyll b is 0.81 mg/g of raw weight. Treatment of cucumber seeds with the drug Rival allowed to increase the content of the sum of chlorophyll a and b to 2.53 mg/g of raw weight. Also, this drug affected the content of chlorophyll b, exceeding the control value by 12.5 %. In this phase, Growth Concentrate did not change the content of photosynthetic pigments in the tissues of cucumber leaves. It was found that the control value for the content of the sum of chlorophyll a and b in the tissues of cucumber leaves in the flowering phase was 2.82 mg/g of raw weight, chlorophyll a – 1.80 mg/g of raw weight, chlorophyll b – 1.01 mg/g raw mass. Treatment of cucumber seeds with Rival increased the amount of chlorophyll a and b to 4 mg/g of raw weight. Also, the drug stimulated the formation of chlorophyll a and b. It was investigated that pre-sowing treatment of cucumber seeds with the drug Rival increases the yield by 22 %, which indicates the effectiveness of this drug. Thus, the synthetic growth regulator Rival can be recommended for use in agricultural practice for pre-sowing treatment of cucumber seeds

Yield, water use efficiency and crop co-efficient of cucumber (Cucumis sativus L.) grown under greenhouse and open field condition

A field experiment was conducted with Chitra variety of cucumber at Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Kumulur in the year 2019-2020. The cucumber seeds were sown under greenhouse and open field condition under drip irrigation system. The micro climatic parameters like maximum and minimum temperature, relative humidity, light intensity were observed. Cucumber plant growth parameters, yield parameters and water use efficiency were recorded. Early flowering and fruit formation (32 days after sowing) was noticed inside greenhouse condition and fruit formation was noticed 40 days after sowing in out-side cultivation. The average length of the fruit was found 20.5 cm inside greenhouse and 17.6 cm for outside cultivation of cucumber. A maximum yield of 11.6 t/ha was recorded inside greenhouse cultivation whereas 7.84 t/ha was recorded for outside cultivation of cucumber. The water use efficiency of 25.7 kg/ha. mm was obtained under green house cultivation whereas water use efficiency of 16.70 kg/ha.mm was recorded in open field cultivation. The crop co-efficient value of 0.67, 0.87, 1.12 and 0.89 were developed for initial, developmental, middle and end stages of crop growth period for open field cultivation. Similarly crop co-efficient value of 0.63, 0.82, 1.05 and 0.88 were developed for initial, developmental, middle and end stages of crop growth period for polyhouse condition of semi arid region.