Long bean ( Vigna unguiculata )
-
Upload
dulminie-nanayakkara -
Category
Environment
-
view
177 -
download
6
Transcript of Long bean ( Vigna unguiculata )
![Page 1: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/1.jpg)
LONG BEANVigna unguiculata
K.K.I.Jayasundara R.Virubinnya
![Page 2: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/2.jpg)
Introduction
![Page 3: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/3.jpg)
Botanical name: Vigna unguiculata
Common name: Long bean
Family: Leguminaceae
Origin: South west China
Annual legume crop
![Page 4: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/4.jpg)
• Other Common Names : Snake Bean , Chinese Long Bean , Long- Podded Cowpea
• Season of growth: Summer growing
• Altitude range: grow well up to 1500m elevation
• Rainfall requirement: 750-1100mm
• Soil requirement: Moist well- drained soil
![Page 5: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/5.jpg)
Nutritional valueYoung, immature pods are one of very low calorie vegetables
The pods contain large quantities of soluble and insoluble fibers
Fresh beans contain a good amount of vitamin C
long beans are excellent sources of vitamin A
yard long beans provide average amounts of minerals such as iron, copper, manganese, calcium, magnesium
![Page 6: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/6.jpg)
Crop recommendations
![Page 7: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/7.jpg)
Land preparationPlough the land well
Prepare bedsIn-row spacing-15-40 cmBetween row spacing-60-150 cm
Rows should make from northto south to get full exposure to sun rays
![Page 8: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/8.jpg)
Should be plant after all danger of frost is past
Direct seeding is practiced
Generally planted in drilled rows 20-42 inches apart
Field establishment
![Page 9: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/9.jpg)
At planting time soil should be wet nearly its carrying capacity
Usually 3-4 time irrigations are necessary after planting until seedlings have emerged
Irrigation for the season should cease when ¼ of bean pods have turned yellow
Irrigation
![Page 10: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/10.jpg)
Trellises
Staking or trellising is required for long and straight fruits and ease of harvest
The trellis is removed at the end-of-the season
Special requirements for growth habit
![Page 11: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/11.jpg)
Harvested when most of pods have turned yellow
but before they are dry enough to shatter from pods.
Harvest Scheduling : Multiple harvests from the
same planting
Harvesting
![Page 12: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/12.jpg)
Hand harvest or machine harvest
Mostly Hand harvest is practiced
Quality parameters/grades : No established grades. Quality is
determined by the market. Different ethnic groups prefer different stages of maturity
![Page 13: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/13.jpg)
Harvest pods every one to three days, depending on air temperatures. Pods are usually sold in bundles tied at the stem end
![Page 14: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/14.jpg)
Diseases
![Page 15: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/15.jpg)
Bacteria blight
Symptoms- spots that may enlarge rapidly and produce dead areas
on leaves
Causal agent- Xanthomonas phaseoli
Control measures- plant blight- free seeds, some resistant varieties
![Page 16: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/16.jpg)
Anthracnose
Symptoms- dark colored areas appear on leaves. Most serious in wet seasons.
Causal agent- Collectrobrichum
lindemuthianum
Control measures- use of disease free seeds, resistant
varieties, crop rotations
![Page 17: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/17.jpg)
Common bean mosaic
Symptoms- mottling of leaves may form various patterns of dark green
and light green areas.
Leaves of infected plants may be curled downward.
Control measures- resistant varieties
![Page 18: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/18.jpg)
Insect pests
![Page 19: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/19.jpg)
Bean weevil
Acanthascelides obtectus
Damage storage and in the field
Control measures- planting weevil free seeds, fumigation of
infected seeds, field sanitation
![Page 20: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/20.jpg)
Mexican bean beetle
Ephilachna varivestris
Control measures- with insecticides
![Page 21: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/21.jpg)
Uses
Culinary purposes
Primarily used in South-east Asian countries
Young leaves and stems are occasionally used as a cooked vegetable
![Page 22: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/22.jpg)
References
www.homevegetables.net.com
www.greenseeds.com
![Page 23: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/23.jpg)
Group members
K.K.I.Jayasundara - UWU/EAG/11/0014
R.Virubinnya – UWU/EAG/11/0008
![Page 24: Long bean ( Vigna unguiculata )](https://reader036.fdocuments.net/reader036/viewer/2022081502/55891282d8b42a22258b466a/html5/thumbnails/24.jpg)
THANK YOU…