2. Cucumber.pdf

287
2. Cucumber
N. Gruda,a G. Sallakub and A. Balliub
a University of Bonn, Germany
b Agricultural University of Tirana, Albania
ABSTRACT
Cucumber is one of the most important cultivated greenhouse crops. Most
varieties are female hybrid cultivars, but monoic cultivars are still in use in
some South East European countries. Cucumber cultivation – as for other
fast-growing vegetables – is characterized by technologies designed to increase
intensive production. Cultural practices aim to provide an appropriate root
medium, balanced root/leaf growth, balanced source/sink development, and a
good harvesting rate of high-quality fruits. The most important growing practices
are microclimate control, fertigation and training. Cucumber is very sensitive
to both abiotic and biotic stresses, and serious problems can arise in the case of
inappropriate crop management. Integrated pest management provides various
approaches for smallholders.
INTRODUCTION
The cultivation area of cucumber in South East Europe (SEE) is almost 2 000 ha
and it is the second greenhouse vegetable in the region after tomato. An additional
area of > 700 ha is cultivated under tunnels.1
INFLUENCE OF ENVIRONMENTAL FACTORS
Cucumber is a typical subtropical plant and grows best under conditions of
high temperature, humidity, light intensity and nutrient availability; it is highly
sensitive to unfavourable environmental conditions.
Temperature
Air temperature influences vegetative growth, flower initiation, fruit growth and
fruit quality. Cucumber growth rate depends on the average 24-hour temperature:
the higher the average temperature (≤ 25 °C), the faster the growth. Optimum
air temperature depends on the growing period. At germination, the optimum
1 See Part I, Chapter 2.

GAP for greenhouse vegetable production in the SEE countries:
Principles for sustainable intensification of smallholder farms
288
temperature is 25–35 °C and, with good moisture, it takes 2–3 days for seeds to
germinate. In contrast, at 12 °C, seeds need 12–20 days to germinate and there are
many losses. Shoot growth does not occur at air temperatures of < 13–15 °C, while
the maximum temperature for vegetative growth is about 38–40 °C.
During the first week after planting, the ideal air temperature is 22–24 °C;
thereafter, temperatures should be kept at 20–22 °C until the beginning of harvest.
During warm weather, in late spring and early fall and at harvest, it is recommended
to lower the air temperature settings by ≤ 2 °C to encourage vegetative growth,
especially at night. At higher air temperatures, fruits grow rapidly and compete
for assimilates. A longer harvest break may begin, particularly after harvesting
cucumbers from the main stem. This can nullify the advantage of an earlier
start to the harvest; in addition, plants get older earlier. For good fruit quality,
temperatures should be 22–24 °C; at temperatures of < 18 °C, fruits tend to be
shorter.
A day/night temperature difference is recommended for winter and early
spring cultivation only. Growth performance depends on the 24-hour mean
temperature during the long days and short nights of spring/summer. Lowering
night temperatures in this period is of no physiological advantage for the plant; it
could, however, be done to save energy.
Soil temperature is important, in particular at germination and the young-
plant stage. If soil temperature remains < 14–16 °C for a long time, plants wilt and
then die. For this reason, cucumber is said to need a “warm foot”. Soil heating
enables cucumber plants to better endure low air temperature, but this practice
is not adopted in SEE countries. Low soil
temperatures stimulate soil-borne diseases
and reduce the water and nutrient uptake
ability of roots, particularly uptake of
phosphorus. A minimum root temperature
of 19 °C is required, but 22–23 °C is
preferable.
Water temperature in irrigation must
also be controlled and adjusted to avoid
the appearance of cold shock symptoms
(Plate 1). Heat injuries will appear under
high transpiration and with inadequate
water supply after 1–2 hours (Krug et al.,
2002).
TECHNISCHE
UNIVERSITÄT
MÜNCHEN
Plate 1
Cold shock of soilless cucumbers as a result of
cold-water irrigation

289
Part III. Crop technologies
2. Cucumber
Light
Temperature control must be considered in the context of light intensity.
Radiation affects total plant leaf area, carbohydrate production and, consequently,
productivity. During the winter, the carbohydrate supply is low and productivity
is reduced, resulting in many aborted fruits. Light also has a direct influence on
fruit quality. For example, fruits grown under low light conditions have less dry
matter, are generally light green at harvest and easily turn yellow on the shelf.
Young fruits are usually more sensitive to low light intensity than older fruits on
the same plant.
Humidity
High humidity used to be generally recommended for greenhouse cucumber.
However, high humidity is only appropriate if the water supply is periodically
insufficient, because it is important to maintain continuous moisture. High
relative humidity increases the risk of water condensation and the development
of plant diseases, while low transpiration rate leads to inadequate absorption
of nutrients (Krug et al., 2002). ‘Beit Alfa’ cultivars have good tolerance against
powdery mildew. A combination of high daytime and low night-time humidity is
recommended for optimal cucumber fruit production and quality.
CO2 enrichment
A decrease in CO2 below the concentration in the outside air should be
avoided. The recommended concentration is 600–800 μmol mol−1 to increase
cucumber yield, although higher concentrations are found in the literature. The
concentration of CO2 applied depends not on the conditions, but on the incurred
cost. If there are no industrial CO2 sources in the vicinity, decomposition of
manure or other organic products, such as straw bales, is an effective method.
Indeed, the traditional straw bale cultural technique has long been adopted in
cucumber cultivation, and it is one of the oldest and simplest methods of CO2
enrichment in greenhouses.
Soil requirements
Cucumber requires a deep, well-drained, structurally stable, fertile soil with high
pore volume. High porosity and stability are important for coping with high
and frequent water supply, as well as with stress due to agricultural practices and
harvesting. This can be achieved by incorporating large amounts of organic matter
and adopting proper tillage measures. Compact, cold soils with a high level of
groundwater are not suitable for cucumber. Sandy loam soils with a pH of 5.5–6.5
are more suitable.

290
PRINCIPLES OF CUCUMBER PRODUCTION IN GREENHOUSE
Cultivar choice
Traditional cucumber varieties have both male and female flowers and require
pollination to produce healthy fruits with seeds and white spines. When
cucumbers do not pollinate properly, the fruits are misshapen and poorly
developed, especially at the blossom end (Vandre, 2013).
The most popular cucumber types currently grown in greenhouses are long,
seedless hybrid cultivars, often referred to as “European” or “Dutch” cucumbers.
These varieties are gynoecious and produce only female flowers. The fruits are
parthenocarpic and there is no need for pollination. The fruit has thin, edible,
smooth, green skin, sometimes with faint longitudinal ribs. They include the
popular ‘Beit Alpha’ parthenocarpic cultivars, which are are adapted for trellising,
have shorter internodes and set multiple fruits in a cluster (Plates 2 and 3).2
Soil preparation
Approximately 80% of cucumber roots develop and spread in the top 20-cm layer
of soil; they possess poor tolerance to low temperature, drought and flooding. The
soil for cucumber planting requires careful preparation and, as for other vegetable
crops, it should not be too fine to enable appropriate aeration.
In greenhouse cucumber cultivation, the soil may be flat (Plate 4) or in raised
beds. Raised beds are essential for early planting and when the water table is
shallow. The bed width should be 60–100 cm, depending on the distance between
rows, and the depth 25–30 cm. The topsoil should be finer than the soil layer
below. Raised beds are often covered with plastic film or other mulching materials.
The application of plastic films before planting brings many benefits: weed
Plate 2
Long-fruit cucumber cultivars
BALLIU
Plate 3
Short-fruit ‘Beit Alfa’ cultivars
BALLIU
2 For cultivar choice, refer to the FAO database, Hortivar, available at www.fao.org/hortivar/.

291
2. Cucumber
control, increased soil temperature, reduced water consumption and increased
profitable early yield. It is, therefore, important to position plastic mulches as
early as possible. Plastic films should be laid on moist soil, and a preliminary
irrigation is recommended if the moisture level is not adequate. The ideal time to
lay out the plastic is midday, so that it can be stretched tight (Egel, 2015).
Cucumber can also be cultivated in growing media. Cultivation in rockwool is
common worldwide, but in some SEE countries, local growing media (e.g. perlite
and pumice) are frequently adopted. Slabs or bags with a 15- or 30-cm width are
used. As for other vegetables, nutrient solution is supplied, based either on the
actual electrical conductivity (EC) and the desired pH value, or on average uptake
rates. With good irrigation control, 5 litres of substrate per plant is sufficient.
Since cucumber is sensitive to salinity, an EC of approximately 2 dS m-1 should be
maintained during early plant growth and later adjusted to 2.5 dS m-1 as plant size
increases (Savvas et al., 2013).
Cucumber is very sensitive to high salinity (Robinson and Decker-Walters,
1997). Plants grown under saline conditions are subject to serious problems
resulting in unsatisfactory yield. High salinity causes retarded plant growth, short
internodes and reduced leaf area. Leaves are often dark green and dull (Plate 5).
In extreme conditions, necrotic tissues may be present in older leaves. Salinity can
be due to a high level of salts in the groundwater, irrigation water, soil or growth
medium, or to excessive application of fertilizers.
Planting
Greenhouse cucumbers usually start from transplants. However, direct seeding in
beds can sometimes be adopted for late summer or early autumn plantings, when
temperatures are sufficiently high for seed germination and the timing of the start
of harvest is of less consequence.
BALLIU
Plate 5
Growth retardation of cucumber plants as a
result of high soil salinity
Plate 4
Greenhouse cucumber plants cultivated directly
in soil using drip irrigation system
GRUDA

292
Cucumber transplants may be grown
on their own rootstock or grafted (Plate 6).
Successful cucumber establishment from
transplants requires special care and
attention. The root system of very young
seedlings is easily damaged and is slow to
resume growth under low soil temperature.
On the other hand, overgrown transplants
develop thick tap layers over the roots,
resulting in poor stand establishment.3
Seedlings should be placed deep in the
ground and irrigated immediately with
sufficient water to guarantee quick stand
establishment. It is imperative to maintain optimum temperatures and avoid major
fluctuations between day and night temperatures in the days immediately after
transplanting.
Plant density
The plant density in greenhouses depends on the expected light conditions during
growth and the pruning method. To avoid overlapping leaves and shading by
adjacent plants, a plant typically requires about 0.5 m2 with good sunlight, but
nearly twice as much space may be needed in northern countries where light
intensity is low.
In general, under good light conditions in southern Europe, a plant density of
2.2–2.5 m-2 is adequate. In northern locations 1.3–1.5 plants m-2 are recommended
to ensure good air circulation and sufficient light for fruit production. Spacing
between rows and between plants within the row varies according to grower
preference. Rows are often 1.2–1.5 m apart, with plants 0.40–0.45 m apart in the
row. In general, planting density is higher for short-fruit cultivars of the ‘Beit
Alpha’ group.
Trellising and pruning
Cucumbers are trellised using a string or wire system. Growers, according to
their experience and preference, adopt various methods. The main objective is to
achieve uniform sunlight throughout the greenhouse.
For optimal cucumber production, it is important to achieve a balance between
vegetative growth and fruit load throughout the plant growth cycle. Continuous
pruning of shoots, foliage, fruits and flowers is necessary. If there are too many
fruits, a large proportion may be aborted, malformed or poorly coloured, because
Plate 6
Grafted cucumber transplants
BALLIU
3 See Part II, Chapter 6.

293
2. Cucumber
the plant may not have sufficient assimilates
(Plate 7). The situation deteriorates further
under poor light conditions.
Generally for long-fruit cultivars, only
one fruit per leaf axial should be allowed to
develop, although with vigorous cultivars
more than one fruit may sometimes mature
at a node. Short, midi types can support
several fruits per node and give good yields,
with a minimum of three to four fruits
harvested at each node.
Most growers in SEE countries prune
their plants using an umbrella system
(Figure 1). Plants need to establish a strong root system and vegetative stem prior
to fruit-set. It is, therefore, important to remove all lateral branches, flowers and
tendrils for 8–10 leaf nodes. The first fruit may be allowed to develop earlier at
5–6 leaf nodes in the case of short-fruit cultivars, or under favourable growing
conditions (e.g. optimum temperature and high light intensity). The main stem
fruits above that point are allowed to develop at the base of each leaf. All lateral
branches are removed, and plants are trained to a single stem. The bottom leaves
should also be gradually removed as new
leaves form on the upper part of the stem.
Once the plant reaches the support wire,
it is allowed to grow about 20 cm along the
support wire, or two leaf nodes above the
height of the wire. A lateral shoot is then
allowed to grow at each of the two top leaf
nodes hanging down from the wire.
Irrigation
Proper irrigation is key to both yield and
product quality. Cucumber has relatively
high water requirements; irrigation
frequency is therefore generally high. It is
important to maintain a proper water–air
ratio in the root zone to ensure an adequate
supply of oxygen to the roots.
Daily water consumption depends on
climatic conditions, such as light intensity,
temperature and relative humidity, as well
Plate 7
Heavy, not balanced cucumber fruit load with
aborted and malformed fruits
GRUDA
FIGURE 1
Umbrella pruning system
Vandre, 2013.

294
as plant density and phenological stage. The soil type does not affect the total
amount of water needed, but it does influence the frequency of water application.
In light sandy soils, the water drains off quickly, and high frequency with less
water per application is required. When mulching is applied, significantly less
water is needed through irrigation because of reduced evaporation.
Drip irrigation is the most common and convenient irrigation method for
cucumbers. Furrow irrigation can cause plant lodging due to an overdose of water.
Sprinkler irrigation can encourage fungal diseases. The EC of the water must be
taken into account when choosing the water source: water with EC < 1 dS m-1 and
a slightly acidic pH is recommended. The pH can be lowered by using inorganic
acids. On the other hand, when soil is saline, the irrigation amounts should be
increased to allow salt leaching.
Fertilization
Nutrient demand of cucumber is highest at fruit-set. It remains high throughout
production and decreases at the senescence stage. While cucumber has a high
nutrient requirement, it is very sensitive to excesses or sudden variations in the
nutrient supply, as well as to significant fluctuations in nutrient concentrations
in the soil. In order to prevent over- or underfertilization, it is vital to carry
out frequent analysis of the nutrient content of the soil and water used. The
fertilization programme should be based on the analysis results.
Nitrogen (N) is crucial for cucumber growth. Plant growth and fruit
harvesting rates largely depend on N availability. The N requirement is lower
at the beginning of the growth cycle. The N absorption rate increases rapidly
from day 36 after emergence. This corresponds to the start of fruit harvesting
and continues throughout the harvesting period. Other nutrients follow a similar
pattern. Therefore, while the daily rates of N and K application gradually increase
with time, the rate of P fertilizer application remains almost unchanged during the
growing period (Table 1).
As with other fruit vegetables, the most absorbed nutrient is potassium (K).
Approximately 90% of K is absorbed during the last 36 days of the crop cycle
(SQM, 2015). Although it does not have a major effect on the total harvested yield,
K enhances plant resistance to several abiotic stresses and plays an important role
in improving fruit quality.
Fertigation, or the application of fertilizers through the irrigation system,
is the most popular and efficient method of fertilizing greenhouse vegetables.
Recommendations regarding the nutrient content of fertigation solutions are
based mainly on the physiological responses of the specific crop to each element.
There are two methods:

295
2. Cucumber
rQuantitative: Fertilizers are dissolved in a large holding tank and the
solution is pumped straight to the crop (Table 1).
rProportional: Fertilizers are mixed in concentrated stock solutions and
incorporated into the irrigation water through fertilizer injectors (Table 2).
The total amount of nutrients delivered to the plant depends on the amount
of irrigation water (Haifa, 2011).
Side-dressing fertilizers should not be applied when drip irrigation is used, as it
is assumed that fertigation can easily satisfy the precise daily demands of the crop.
However, organic fertilizers and lime may be needed before planting, in order to
improve soil structure and adjust soil pH.4
TABLE 1
Recommended nutrient amounts as active ingredients for quantitative fertilization method of soil-
grown, greenhouse cucumbers
Growth stage Nutrient demand (kg ha-1)
N P2O5 K2O MgO
Establishment 40 10 60 10
Vegetative growth 70 20 140 40
Flowering – fruit-set 80 20 200 30
Harvesting 50 20 100 20
Total 240 70 500 100
Haifa, 2011.
TABLE 2
Recommended nutrient amounts as active ingredients for proportional fertilization method of soil-
grown, greenhouse cucumbers
Growth stage Assumption Nutrient demand (kg m-3)
No. days per stage Irrigation rate
(m3 ha-1 day-1)
Na P2O5 K2O MgO
Establishment 25 25 0.06 0.02 0.10 0.02
Vegetative growth 30 40 0.06 0.02 0.12 0.03
Flowering – fruit-set 30 55 0.05 0.01 0.12 0.02
Harvesting 25 60 0.03 0.01 0.07 0.02
a 80–90% as NO3
-, 10–20% as NH4
+.
Haifa, 2011.

296
Main disorders, pests and diseases
Cucumber grows fast and develops an abundant leaf area. The leaves are soft,
tender and highly susceptible to pests and diseases. The most frequent and
devastating pests and diseases are listed in Table 3.5
Harvesting and post-harvest handling
Cucumber harvest in a protected environment starts approximately 30–45 days
after transplanting with variations according to cultivar, climatic conditions and
technology used. Cucumbers are harvested as immature fruit when full length
has been reached. Over-mature cucumbers left on the vine inhibit new fruit-set,
and production decreases if fruits are left on the plant for a long time. Harvest
should take place at the coolest time of day, in order to avoid excess heating of the
product. To minimize damage and disease spread, it is important to use a sharp
clean tool to cut the fruit from the plant.
For cucumber and other vegetables, European marketing and quality standards
are adopted. Explanatory brochures are published by the United Nations
Economic Commission for Europe (UNECE)6 and the Organization for Economic
Co-operation and Development (OECD).7
Cucumbers lose moisture rapidly and tend to soften during storage. Harvested
fruit should, therefore, be placed in clean harvesting containers, kept in the shade
and taken to the packing house as soon as possible after harvest. Careful handling
is vital to avoid damage to the thin skin. The optimum storage temperature
for cucumbers is 10–12.5 °C at a relative humidity of 95%. Storage or transit
temperatures below this range may result in chilling injury after 2–3 days.
6 Available at http://www.unece.org/trade/agr/standard/fresh/FFV-StandardsE.html.
7 Available at http://www.oecd.org/tad/code/oecdfruitandvegetablesstandardsbrochures.htm.

297
2. Cucumber
TABLE 3
Identification and control of the most common cucumber disorders, pests and diseases
Symptoms Reasons Prevention and control measures
Pale green to yellow leaves,
especially in older leaves
New leaves green but small
N deficiency Apply adequate fertilization
Chlorosis at leaf margins in
interveinal area, especially in
older leaves
K deficiency
High root pressure
Apply adequate fertilization and irrigation
Youngest leaves cup
downwards, edges scorched
Death of growing points
Ca deficiency
High salinity
Control climate and growing conditions
Apply adequate Ca fertilization
Avoid overfertilization
Use good water quality
Flower and fruit abortion
Malformed fruits
Fruit overload, delayed harvesting
Low light intensity
Temperature and humidity
variation
Thrips
Control climate conditions
Harvest frequently
Control thrips
Pale green to yellow
chlorosis with green veins of
newest leaves
Fe deficiency Lower pH of soil or nutrient solution
Use Fe formulation available in higher pH
(e.g. iron chelates)
Improve soil drainage and aeration
Trails and tunnels in leaves Leafminer Adopt hygiene measures
Destroy infected leaves
Spray with insecticide
Yellow leaves, sticky or
covered with sooty mould
Whitefly Use whitefly parasitoids (e.g. Encarsia
formosa)
Stippled, distorted and light-
coloured leaves
Mite Apply Phytoseiulus persimilis
Use insecticides
Stunted plant growth Nematodes (Meloidogyne spp.) Adopt crop rotation
Adopt integrated approach for plant
growth
Apply soil solarization
Adopt grafting and use resistant cultivars
Use soilless culture
Wilting of plants Fusarium oxysporum f. sp.
radicis-cucumerinum
Adopt crop rotation
Adopt grafting and use resistant cultivars
Use soilless culture
Remove and destroy infected plants
Yellow spots on the upper
leaf side, undersides with
fluffy purplish mildew,
especially in older leaves
Downy mildew caused by
Pseudoperonospora cubensis
Humid conditions at night
Temperatures of 15–20 °C
Adopt drip (not overhead) irrigation
Improve air circulation
Reduce air humidity
Use resistant cultivars
White superficial spots on
leaves (and stem)
Powdery mildew caused by
Sphaerotheca fuliginea or
Erysiphe cichoracearum
Use resistant cultivars
Avoid high plant densities
Apply fungicides
Mosaic colouring of leaves Cucumber mosaic virus spread
by aphids
Use healthy, certified seed
Use insect-proof nets and mulch
Monitor and control aphid vectors
Control weed
Use yellow sticky traps

298
GAP recommendations – Cucumber production
r Pay maximum attention to soil and irrigation water temperature and soil management, in
order to obtain high yields and high-quality greenhouse cucumbers:
- Maintain a “warm foot” for optimal growth.
- Control the temperature of the irrigation water to avoid shock caused by cold water
at the beginning of cultivation. If cold water from wells is used, keep it for a while in a
small reservoir to allow it to reach the ambient temperature.
- Analyse soil, water and nutrients, in order to apply adequate and balanced nutrients or
fertigation at appropriate times and in appropriate doses.
- Avoid using saline water and do not overfertilize.
- Irrigate frequently and in small doses.
- Apply tillage and mulching to prevent upwards movement of saline water from deeper
layers.
- Control soil-borne pathogens, avoiding chemical treatments for soil disinfection.
r Use the correct plant density:
- Increase plant space under low radiation.
- Consider the cultivar used – short-fruit plants can generally be planted at a higher
density than long-fruit plants.
r Do not allow plants to become overburdened with fruits.
r Carry out timely pruning of plants to balance leaf/fruit development.
r Apply mulch to control weeds, increase soil temperature, reduce water consumption and
increase profitable early yield.
r Handle harvested fruit carefully without damaging the thin skin.
r Keep harvested fruit in the shade and take to the packing house as soon as possible after harvest.
r Maintain appropriate storage temperatures (not too low) to avoid chilling injuries.

299
2. Cucumber
BIBLIOGRAPHY
Egel, D.S. 2015. Midwest vegetable production guide for commercial growers 2015.
210 pp.
Haifa. 2011. Nutritional recommendations for cucumber in open fields, tunnels and
greenhouse. 76 pp (available at www.haifa-group.com/files/Guides/Cucumber.pdf).
Krug, H., Liebig, H.P. Stützel, H. 2002. Gemüseproduktion. Stuttgart, Eugen
Ulmer GmbH Co. 463 pp.
Kubota, Ch., Balliu, A. Nicola, S. 2013. Quality of planting material. In Good
agricultural practices for greenhouse vegetable crops. Principles for Mediterranean
climate areas. FAO, Plant Production and Protection Paper 217. Rome, pp. 355–378.
Robinson, R.W. Decker-Walters, D.S. 1997. Cucurbits. Wallingford, Oxon, UK;
New York, CAB International. 226 pp.
Savvas, D., Gianquinto, G., Tüzel, Y. Gruda, N. 2013. Soilless culture. In Good
agricultural practices for greenhouse vegetable crops. Principles for Mediterranean
climate areas. FAO, Plant Production and Protection Paper 217. Rome, pp. 303–354.
SQM. 2015. Cucumber (available at http://www.sqm.com/en-us/productos/
nutricionvegetaldeespecialidad/cultivos/pepino.aspx#tabs-2).
Vandre, W. 2013. Cucumber production in greenhouses. University of Alaska
Fairbanks Cooperative Extension Service (available at www.uaf.edu/ces).

FAO PLANT PRODUCTION AND PROTECTION PAPER 230
FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS
Rome, 2017
Good Agricultural Practices
for greenhouse vegetable
production in the South East
European countries
Editorial board:
Food and Agriculture Organization of the United Nations
Plant Production and Protection Division
Wilfried Baudoin, Avetik Nersisyan, Artur Shamilov, Alison Hodder, Diana Gutierrez
International Society for Horticultural Science
Stefania De Pascale, Commission Protected Cultivation
Silvana Nicola, Vice Chairperson
University of Bonn, Department of Horticulture
Nazim Gruda
University of Avignon et des Pays de Vaucluse
Laurent Urban
Volcani Center, Agricultural Research Organization
Josef Tany
Editorial support and layout:
Ruth Duffy, English Language Editor
Principles for sustainable intensification
of smallholder farms

I6787EN/1/0.17
ISBN 978-92-5-109622-2
9 7 8 9 2 5 1 0 9 6 2 2 2
ISSN 0259-2517
View publication stats
View publication stats

2. Cucumber.pdf

More Related Content

Similar to 2. Cucumber.pdf (20)

More from Tiffany Daniels (20)

Recently uploaded (20)

2. Cucumber.pdf