Vegetable Crops–PLSC 451/551 Lesson 18, Cucumber, Squash Instructor: Stephen L. Love Aberdeen R &...
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Transcript of Vegetable Crops–PLSC 451/551 Lesson 18, Cucumber, Squash Instructor: Stephen L. Love Aberdeen R &...
![Page 1: Vegetable Crops–PLSC 451/551 Lesson 18, Cucumber, Squash Instructor: Stephen L. Love Aberdeen R & E Center 1693 S 2700 W Aberdeen, ID 83210 Phone: 397-4181.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d8b5503460f94a72f30/html5/thumbnails/1.jpg)
Vegetable Crops–PLSC 451/551Lesson 18, Cucumber, Squash
Instructor:Stephen L. LoveAberdeen R & E Center1693 S 2700 WAberdeen, ID 83210Phone: 397-4181 Fax: 397-4311Email: [email protected]
![Page 2: Vegetable Crops–PLSC 451/551 Lesson 18, Cucumber, Squash Instructor: Stephen L. Love Aberdeen R & E Center 1693 S 2700 W Aberdeen, ID 83210 Phone: 397-4181.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d8b5503460f94a72f30/html5/thumbnails/2.jpg)
What do you get when you divide the circumference of a pumpkin by its radius?
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What do you get when you divide the circumference of a pumpkin by its radius?
Pumpkin Pi
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Cucurbits -General Information
Taxanomically diverse group
Family consists of 96 genera, 750 species
Widely divergent regions of origin, mostly tropical
Most have vining or climbing growth habit
Crop species are grown for fruits
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Cucurbits -General Information
Most are insect pollinatedFlowering habit unique, with most
Monoecious – unisex flowers on same plantAndromonoecious – perfect and staminate flowers on same plant
Deep rooted, withstand drought but not moisture stress
Most are day-neutral, fruiting response associated with vine mass
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Cucurbits -General Information
Most are insect pollinatedFlowering habit unique, with most
Monoecious – unisex flowers on same plantAndromonoecious – perfect and staminate flowers on same plant
Deep rooted, withstand drought but not moisture stress
Most are day-neutral, fruiting response associated with vine mass
![Page 8: Vegetable Crops–PLSC 451/551 Lesson 18, Cucumber, Squash Instructor: Stephen L. Love Aberdeen R & E Center 1693 S 2700 W Aberdeen, ID 83210 Phone: 397-4181.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d8b5503460f94a72f30/html5/thumbnails/8.jpg)
Cucurbits -General Information
Most are insect pollinatedFlowering habit unique, with most
Monoecious – unisex flowers on same plantAndromonoecious – perfect and staminate flowers on same plant
Deep rooted, withstand drought but not moisture stress
Most are day-neutral, fruiting response associated with vine mass
![Page 9: Vegetable Crops–PLSC 451/551 Lesson 18, Cucumber, Squash Instructor: Stephen L. Love Aberdeen R & E Center 1693 S 2700 W Aberdeen, ID 83210 Phone: 397-4181.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d8b5503460f94a72f30/html5/thumbnails/9.jpg)
Cucurbits -General Information
Most are insect pollinatedFlowering habit unique, with most
Monoecious – unisex flowers on same plantAndromonoecious – perfect and staminate flowers on same plant
Deep rooted, withstand drought but not moisture stress
Most are day-neutral, fruiting response associated with vine mass
![Page 10: Vegetable Crops–PLSC 451/551 Lesson 18, Cucumber, Squash Instructor: Stephen L. Love Aberdeen R & E Center 1693 S 2700 W Aberdeen, ID 83210 Phone: 397-4181.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d8b5503460f94a72f30/html5/thumbnails/10.jpg)
Cucurbits - General Information
Harvested immature or mature
Short-term storage except for some squashes
Most fruits subject to cold injury in storage
Mostly marketed fresh
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Cucurbits - General Information
Common Diseases
Mosaic viruses
Fungal fruit rots
Common Insect Pests
Aphids
Squash bugs
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Cucumber
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Cucumber
Taxonomy
DicotyledonFamily: CucurbitaceaeGenus and species: Cucumis sativa or anguiraRelated species: watermelon, luffa, gourds,
chayote
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Cucumber
Domestication
Originated in India
Cultivated there for over 3,000 years
Grown by ancient Greeks and Romans
Brought to North America by Columbus
Cultivated by native Americans in 1500s
Gherkin (C. anguira) introduced from Africa
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Cucumber
BotanyDomesticated types are monoecious or
gynoeciousMale flowers outnumber female flowersFlower type influenced by photoperiod -
long days promote staminate floweringPollination by bees – necessary for fruit setEthephon promotes pistillate flowers
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Cucumber and Gherkin
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Cucumber
Varieties
Two major types in the USSlicers
White-spined, long, slow seed maturation, dark green
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Cucumber
VarietiesTwo major types in the US
PicklersBlack-spined,
short, rapid seed maturation, light green or whitish
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Cucumber
Varieties
Middle Eastern Type
Beit Alpha
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Cucumber
Varieties
Chinese Types
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Cucumber
Varieties
Japanese and Korean Types
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Cucumber
Varieties
Indian Types
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Armenian cucumber – same species as cantaloupe
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Cucumber
Consumer use
Versatile
Consumed fresh in salads, cooked dishes
Processed into pickles, relishes
Important source of vitamin B, vitamin C, calcium, phosphorus, iron, and potassium
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Cucumber
Production/Harvest PrinciplesNeeds consistent harvest to maintain productionHarvest
Every other dayEarly in the morning when turgidPrior to seed developmentSize specification for picklers
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Cucumber
Harvest and handling
Critically important to avoid harvest injury
Remove field heat, cool to 50 degrees (hydro or room cooling)
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Cucumber
Storage
Store at 50-55° degrees, 95% RH
Susceptible to chilling injury - <50°
Susceptible to yellowing - >65°
Maximum storage period 1-2 weeks
Susceptible to ethylene injury
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Cucumber
Sophisticated Production Systems
Open field for machine harvest
Bed production for fresh market
Trellis systems
Tunnels
Greenhouse and controlled environment
Hydroponic systems
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Cucumber
Open field, large-scale, machine harvest
Intensive traditional or organic
Restricted to picklers
Gynoecious varieties
Reduced labor
Reduced yield
Flat, smooth field
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Cucumber
Beds, medium to large-scale, hand harvest
Intensive modern production
Slicers and picklers
Machine-assist harvest
Raised beds for drainage
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Cucumber
Trellised, small scale, hand harvest
Intensive-modern, garden market, or subsistence
Slicers/fresh market
Labor intensive
Reduced land needs
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Cucumber
Tunnels (modified trellis)
Common in Asia
Intensive small-scale
Fresh market types
Labor intensive
Reduced land needs
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Cucumber
Greenhouse (controlled)
Common worldwide
Often for export
Needs high price return
Parthenocarpic varieties
Diligent pest control
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Cucumber
Hydroponic
Controlled environment
Very intensive/expensive
Amenable to organic systems
Extended production
Requires diligence
Requires unique knowledge
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Squash and Pumpkin
Botany
Cultivated species:
C. pepo – summer and winter, pumpkins
C. maxima – winter squash, pumpkins
C. moschata – winter squash
C. argyrosperma (mixta) – winter squash
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C. pepo
Summer squash/pumpkins-Zucchini-Jack o’ lantern pumpkins
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C. moschata
Winter squash-Butternut-Cushaw
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C. maxima
Winter squash/pumpkins-Hubbard-Buttercup-Turban-Giant pumpkins
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C. mixta
Winter squash/pumpkins-Jack-be-LittleWhite pumpkinsBlue pumpkinsSeed pumpkins
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Squash and Pumpkin
Genetics and breeding
Insect pollinated (cross), bred as selfed crop
Domesticated species closely related
Can be crossed:
C. pepo x C. maxima
C. moschata x C. maxima
Cannot be crossed:
C. pepo x C. moschata
(C. mixta rarely used in breeding, difficult)
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Squash and Pumpkin
Origin and Domestication
Native of North, Central, and South America
C. pepo cultivated in Mexico 8000 BC
Evidence of cultivation of other species throughout Central and South America back to 3000 BC
Distributed throughout the world by European explorers
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Squash and Pumpkin
Use and importanceFresh use:
Boiled or bakedSeeds used for consumption or oil
Processed:Canned for use in pies
Important source of carbohydrates, vitamin C, vitamin A, and certain minerals
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Pumpkin Seed
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Pumpkin and Squash
World production systems
Large-scale production (limited)
Pumpkins for processing
Pumpkins for seed (oil, consumption)
Market garden production (very common)
Organic production (especially summer squash)
Subsistence production (Meso-America)
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Other Squash-like Crops
FigLeaf GourdCucurbita ficifolia
Short-lived perennial, cold tolerantFruit 6-20 in long, green with white stripesDry fibrous flesh converted to alcohol or sugar
added to make a dessert foodStores for up to a year without refrigerationCultivated in Mexico and SA highlands
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Other Squash-like Crops
Chayote
Sechium edule
Short-day perennial vine
Native to Central America
Used by the Aztec culture
Fruit eaten boiled or pickled
Secondary use of roots as a source of starch
Grown in Meso-America, exported to US, Europe
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Other Squash-like Crops
Loofah Gourd (Luffa)Luffa aegyptiaca (smooth)Luffa acutangula (angular)
Annual climbing vineIndigenous to tropical AsiaAngular used as a vegetable, mostly boiledSmooth dried and used as “vegetable sponge”Market garden and subsistence production worldwide
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Other Squash-like Crops
Bitter gourd
Momordica charantia
Indigenous to tropical India
Perennial grown as annual
Ridged, warty fruit, 3-10 inches long
Immature fruit eaten , extremely bitter when mature
Eaten fresh, more commonly cooked with other foods
Market garden production in India, Nepal, Aisa
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Other Squash-like Crops
Chinese Winter Melon
Benincasa hispida
Native to the Indo-Malayan region
Vining annual plant
Large, 10-40 inch long, light green fruit
Fruit used in soups or candied
Mature fruits store for up to a year
Widely grown in east and south Asia
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Other Squash-like Crops
Bottle GourdLagenaria siceraria
Annual plant, tropical adaptationThought to have originated in AfricaAncient and common use in tropics (inc. Am.)Variable in shape, size, colorImmature fruit used like summer squashDried, mature fruit used as containers, ornamentsGrown worldwide, important in the tropics