Cardamom production Flashcards

1
Q
  1. scientific name
    a. family
    b. genus
    c.species
    d. local names
  2. largest producer
    India -54%
    Gautemala
    Nepal 33
    Bhutan 13 %
A
  1. cardamomum subulatum Roxb
  2. zingiberaceae
    c. Cardomomum
    d. subulatum and elattaria
    e. Borang aleichi and aleichi

2.India -54%
Gautemala
Nepal 33
Bhutan 13 %

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2
Q

Background

A

native to Indo- malayasia
mountainous area of Himalayas to southern china and india
african cardamoms with the genus alframomum are found in megagascar, Somalia and cameroon

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3
Q
  1. Medicinal Uses

2. culinary uses

A

remedy for indigestion, pulmonary tuberculosis congestion, Gonorrhea, sore throat, scanty urination, nephritis, cystitis, treat depression, pharyngitis, sore throat, influenza, relieve hiccup, flu.
2.Used as ingredient in biscuits, cakes, curries, sweet dishes, drinks, pickles, ice-cream, homemade rice pudding, salad, etc.
Traditional Indian sweets and tea
As spice in Indian curry
Sometimes seeds are chewed as a mouth freshener

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4
Q

Cardamom in Bhutan

A

Production escalated from 643MT in 2012 to 1160 MT in 2013,2245MT in 2017 but the production decreased radically to 1542 MT and in 2019 1413MT

Samtse Dzongkhag leads the production with 1008 MT followed by Dagana Dzongkhag with 235mT

average yield-162 kg/ac in 2017
Area under production-13880 ac in 2017
Samtse Dzongkhag leads with 4,496 ac followed by Chukha Dzongkhag with 3,115 ac

23,000 cardamom growers in 2019

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5
Q

Plant Morphology and Characteristics

Flowers
Fruits
Seeds

A
Tall – up to 2.5 m high
Perennial herb
Leafy stems 
Branched underground rhizomes
Leaves dark-green – 35 cm long; lanceolate with sword-shaped

Flowers
Bisexual, irregular, pale-white, small and fragrant
Borne on panicles emerging from rootstock
Blooms from March to April

Fruits
Dark-brown, oblong ovoid (8-15 mm long)
Three sided capsule with fibrous, papery and longitudinally wrinkled pericarp

Seeds

Inside lobules are pressed together
Transversely wrinkled and covered by thin membranous “aril”
Bulk of seeds consist of starchy white perisperm, enclosing the endosperm and embryo

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6
Q

Pollination

  1. …………….is the main pollinating agent
  2. flowers remain active and open for………………..
  3. stigma receptivity and pollen viability are maximum during …………….
  4. four bee hives per ………….. are sufficient for effective pollination

Climate and soil requirement

A
  1. Honeybee
  2. 15 to 18 hours
  3. morning
  4. hectare
climate
evergreen forests( tropical and sub tropical)
altitude; 600 to 1200 masl
rainfall 1500 to 4000 mm per year
temperature: 10 to 35 degree Celsius

soil
Forest loamy soil
pH: 4.2 to 6.8 (generally acidic in nature)
High in organic and N, low in K and medium to high

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7
Q

Types of cardamom

A

the smaller cardamomum /lesser/True Cardamom(cardamomum elattaria) Maton
native to the western ghat in south india
alt-600 to 1500 masl
3 to 5 meters tall
flowers in april and fruits mature in Nov to Dec
Trilocular capsules;contain about 10-15 seeds.

Large cardamomum or Greater indian or Nepal Cardamom(cardamomum subulatum) Roxburgh
cuktivated in swampy areas and mountains streams of eastern himalayas
alt-765 to 1675 masl
harvested-aug to oct
capsules-dark red brown(2.5 cm long)

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8
Q

Cultiivars

A
1.Ramsey
Well suited at high altitude
1.5-2 m tall
Narrow leaves
small capsules
flowers in may and harvested in October
24 to 40 seeds per capsule
susceptible to viral diseases
2.Sawney
Widely adaptable cultivar
1.5 to 2m tall
vigorous in nature
broad, ovate leaves with bigger capsules
35 to 50 seeds per capsule
3.Dzongu golsey
suitable below 1500 masl
1 to 1.5 m tall
tillers are green in color
narrow and erect leaves
big bold capsules with 50 to 70 seeds
tolerant to chirke
susceptible to foorkey
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9
Q
  1. Seremna

5. Varlangey

A
Seremna
Grown in low altitude
1.5 to 2 m tall
Green tillers and drooping leaves
65 to 70 seeds per capsule
High yielding
Varlangey
Grown in high altitudes 
High yielding
1.5 to 2.5 m tall
Vigorous type
Narrow leaves with wavy margins
Bold capsule with 5o to 70 seeds
Flowers during June-July
Harvested in Nov-Dec
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10
Q

Propagation

A

sexual through seeds
Matured and good capsules are selected for seeds
Mixed with wood ash, dried in shade

Sown in September to October

asexual/vegetative though sucker multiplication and micro propagation through tissue culture

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11
Q

sexual propagation sowing

A

sowing
1. June and July, secondary transplantation (25 to 30 cm apart)
2. provide share before transplantation
3. mulch with dry leaves
irrigation, pest and diseases control and fertilizer
application are necessary in the secondary nursey
4.One month before uprooting ,remove shade to encourage tillering
5. sown in sept-oct
6.select the appropriate site
7.dig 30 cm deep and make beds of 6 x 1m x 30 cm
8.cover bed with mulch
9. sow 80 to 100 g seeds in line 10 cm apart
cover seeds with fine soil
10.mulch with dry grass

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12
Q

Asexual propagation through vegetative parts sucker multiplication and micro propagation

A
  1. Take precautions to avoid viral transmission
  2. nursery should be 500 m from the main field
  3. plant tillers in may and June
  4. Prepare trenches of 30 cm x30cm x 30cm inter spacing
  5. mulch with dried leaves
  6. split grown tillers into one tiller for plantation
micro propagation
Done through tissue culture
are disease free
skills required
hardened in polybags or in secondary nurseries
planted in June July
Planted in June – July

Clear all undergrowth

Pits size: 30 cm x 30 cm x 30 cm with a spacing of 1.5 m x 1.5 m

Fill pit with top soil mix with cow dung and compost @ 1 to 3 kg/pit

Stake and mulch the seedlings

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13
Q

Shade Trees

A

about 30 species are used
1.Alnus Nepalensis( also called as Betula plant or Nepal alder)
fixes nitrogen
used as fuel wood and decomposes very fast

2.Puyum(dzo)Mecaranga denticulate
3.Abomchusing(Dzo)Jambosa farmosa Walp
3Siris(Nep)Castronopsis indica
4.Ambakay(Nep)Schima wallichi
5.Sokeyshing(dzo)Albizzia lebbek

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14
Q

Management practices-

  1. weeding
  2. irrigation
A

3 rounds of initial weeding is required during the 2 to 3 years
1st weeding is done in june to initiate pollination by exposing the flowers
2nd weeding is done before harvesting for easier harvesting

irrigation
done through open channels ,flooding or through pipes
done during dry months
hose irrigation done 40 to 50 l per plant at fortnightly intervals

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15
Q

Pests and diseases

A

Leaf eating caterpillar (Artona chorista)

Rhizome weevil (Prodioctes haematicus)

Shoot fly (Formosina flavipes)

Shoot borer

Root grubs (Basilepta fulvicorne)

Spotted red spider mite

Cutworm (Acrilasisa plagiata)

Plant parasitic nematodes
disease
Chirke virus disease

Foorkey

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16
Q

Difference between chirke virus and foorkey
clump rot disease
Other diseases

Nursery leaf spot

Nursery leaf rot

Damping off of seedlings

Clump rot (rhizome rot)

A

Chirke virus disease

Symptoms – burnt stripes on leaves

Later forms mosaic pattern with pale streak

Cuts down photosynthetic efficiency

Transmitted by banana aphids (Pentalonia nigronervisa), mechanical sap inoculation and harvesting knife

Foorkey (also a viral disease)

Symptoms – drying of leaf tips and flowering spikes become leaf-like

Fields look burnt out field

Numerous small tillers appear at the base of affected plants
clump rot disease
Vector Micromyzus kalimpongensis activity highest in spring
Caused by fungi Pythium and Rhizoctonia sp.
Symptoms: collar region turns pale water soaked, soft and can easily be pulled out
Rot extends to rhizome and discolour and decompose it
Management
Removal of affected plants

17
Q

Harvesting and curing

A

In August (Sawney)
September to October – Ramsey and Golsey
Maturity Index
When the seeds of topmost capsules turn brown
Bearing tillers are cut to a height of 30-45 cm and left 10-15 days for full maturity
Harvested using special knife
Spikes are heaped and dried

Curing
For long duration storing and to bring its aroma, fresh cardamoms are dried immediately after harvesting
Moisture content: bring down from 80 to 85% to 10%
Curing method used in Bhutan - Bhatti
Improved curing system – Gasifier
Cured capsules are rubbed on bamboo mat or wire mesh to remove calyx (tail)

18
Q
  1. Disadvantages of Bhatti system
  2. Cardamoms are spread on a platform of bamboo called
  3. advatage of Gasifier system
A
Capsules come direct in contact with smoke which turns them dark-brown, giving smoky smell 
High consumption of fuel wood
Labor-intensive
moisture 11.2
volatile oil-1.7
Difficult to maintain temperature
2.Sarang
3. maintains natural reddish shade with more content of volatile oil (2.7) for more fragrance and taste as well as moisture content at suitable level(8.3)