Saturday, December 28, 2013

Beans: (Phaseolus vulgaris L.)

Climatic requirement
Bush beans and pole beans can be grown in all agro-ecological regions except the
up-country Wet Zone.

Soils
Well-drained soils are suitable (preferably pH 6); ill-drained soils can cause growth problems;

Land preparation
The soil should be ploughed to a depth of 30-40 cm and worked to a very fine tilth.

Recommended and promising varieties
1.    Bush bean
a)    Wade
Pods - dark green, round, fleshy, stringless and smooth surfaced, medium long
b)    Top Crop
Pods-light green, flattened to round, stringless, medium long

2.    Pole bean
a)    Kentucky Wonder Green
Pods - green, oval cordate, medium size, stringy, slightly S-shaped
b)    Kentucky Wonder Wax
Pods - light yellow, oval cordate, short to medium length, stringy, curved
c)    Other promising varieties - Pees Butter, Katugastota, Lanka Nill

Seed rate
a)    Bush bean - 75 kg/ha
b)    Pole bean - 50 kg/ha

Time of planting
Planting after heavy rains is recommended for both Maha and Yala seasons.

Planting and spacing
a)    Dibble seed on raised beds
b)    Spacing
i.    Bush bean - 50 x 10 cm
ii.    Pole bean - 60 x 45 cm

After care
Stake pole beans when, support is required.


Fertilizer use
N-145 kg/ha (45 kg/ha if nodulation is satisfactory), P205-130 kg/ha, K2O-90 kg/ha
a)    Basal - apply the following formulations and rates:
i.    Urea - 190 kg/ha
ii.    TSP- 285 kg/ha
iii.    Muriate of potash -150 kg/ha
b)    Top dressing - apply 125 kg/ha of urea 4 weeks after planting

Irrigation
Irrigate daily until germination is complete, then once every 2-3 days until the crop is established. Maintenance of adequate moisture during flowering and pod-¬filling stages is very important.

Weed control
1.    Bush beans
a.    Earth-up 1 week after planting.
b.    Weed 3 weeks after planting to, coincide with fertilizer application.

2.    Pole beans
a.    Weed 2 and 6 weeks after planting.
b.    When an-inverted trellis is used, two additional weedings are needed to control weeds between rows.


Disease control
1.    Pythium rot (Pythium spp.)
a)    Symptoms
i.    Scorching of leaves
ii.    Browning of basal stem and roots

b)    Control
i.    Avoid continuous cultivation of beans in the same field
ii.    Facilitate good drainage
iii.   Avoid excessive use of nitrogen
iv.   Use recommended fungicides for seed and soil treatment

2.    Collar rot (Sclerotium rolfsii)
a)    Symptoms
i.    Yellowing of leaves
ii.    Rotting at base of stem
iii.   Presence of a white mycelial mat at collar region

b)    Control
i.    Avoid accumulation of plant debris on the soil surface
ii.   Use a recommended fungicide as a soil drench after positive identification of the organism

3.    Anthracnose (Colletotrichum lindemuthianum)
a)    Symptoms
i.    Sunken spots on pods and leaves
ii.    Discolouration of buds and die back of plant

b)    Control: Use a recommended fungicide

4.    Rust (Uromyces sp.)
a)    Symptoms: light reddish-brown coloured small; raised blister like spots appear on leaves and pods
b)    Control: Use a recommended fungicide


5.    Bacterial blight (Xanthomonas phaseoli)
a)    Symptoms
i.    Leaves develop water-soaked spots, turn. brown, and fall
ii.    Water-soaked spots appear on pods

b)    Control
i.    Follow a crop, rotation
ii.    Use resistant varieties
iii.    Remove all diseased plants at the earliest symptoms .

6.    Bean mosaic virus
a)    symptoms
i.    Yellow and dark green mottling on leaves
ii.    Plant stunting

b)    control
i.    Use resistant varieties
ii.    Use virus-free seed
iii.   Rogue infected plants
iv.   Control weeds
v.    Control aphid vectors with recommended insecticides

Yield
a)    Bush bean: 6-10 tons/ha
b)    Pole bean: 9-12 tons/ha

Post-harvest
Grade and handle pods carefully to avoid, damage and pack in well-ventilated bags if transported long distances.

Seed production
1.    Bush bean
In the up-country Intermediate Zone, about 2 t/ha of seed/ha can be produced when planted at a spacing of 40 x 10 cm and a density of 256,000 plants/ha.


 

Wednesday, December 18, 2013



Pineapple
Ananas comosus (L)


 
 
Introduction
Family : Bromeliaceae
Include 60 genera and 1500 spp

Origin :- South America
  1. Semi perennial herb, 90 - 100 cm in height with a leaf spread of 130 - 150 cm and a terminal inflorescence of fruit
  2. Confined to Tropics & Sub tropics (250 between N & S from equator)
  3. Growth continued after fruiting by one or more auxiliary buds in the leaf axil growing in to vegetative branches (suckers) asa ratoon crops.
  4. Plants may continue living and fruiting for over fifty years.
  5. In commercial production, several ratoon crops are taken (2-6 harvesting)‍
  6. Although its' a seasonal crop, there is a chance to obtain fruits through out the year by application of flower induction hormones.

Nature of the pineapple
  • Produce Functional germ cells
  • But cant be self fertilized.
  • Cross compatible & set seeds
  • No natural cross pollination (except by Humming birds)
  • About 150 flowers /fruits
  • Opening start from base (5-10 Flowers / days)
  • Continues up to 10-15 days

Nutritive Values
(per 100g of edible fruit)
Water 87.8 g
Energy 46.0 k cal
Protein 0.4 g
Fat    0.1 g
Carbohydrates 10.8 g
Calcium 20.0 mg
Phosphorus 9.0 g
Iron 1.2 mg
Carotene (Vit. A) 18.0 ug
Thiamine 200.0 ug
Riboflavin (Vit. B) 120.0 ug
Niacin 0.1 ug
Vitamin C 39.0 mg

Commercial usage of pineapple
Ripen fruits :-
  • use as a dessert
  • Syrup (juice)
  • Alcohol
  • Citric Acid
  • Residues - Cattle feed and fertilizer
  • Leaves Fibers-

Medicinal Values
Ripe fruit : Possesses germicidal, laxative, and invigorative properties, contains digestive enzyme increases appetite.
Useful in cardiovascular disorders.
Unripe fruit : Can cause abortion

Nature of cultivation
Medium and large scale orchards and home gardens.

Availability
May - June (Major season) Prices are low
December - January (Minor season)

Obtain fruits through out the year by Hormone application - Prices are high

Pineapple cultivation extent and production in Sri Lanka
District              Extent (ha) Production ('000 fruits)
1. Gampaha 1,694 8,969
2. Kurunegala 2,069 25,170
3. Badulla 115 1,201
4. Puttlam  199 1,329
5. Moneragala 157 1,140
SriLanka (Total) 4,825  40,716
Source:- Department of Census and Statistics of Sri Lanka.

Major Growing AreasKurunagala , Gampaha , Badhulla , Puttlam , Moneragala , Colombo and Gale.

Suitable climatic zones for pineapple cultivation in Sri Lanka

Wet Zone 
WL1 WL2 WL3

RF >100" >75"  >60"

Soil Red yellow podsolic Red yellow podsolic Red yellow podsolic


Hiniduma, Ratnapura,Morawaka,
Agalawatta, Bombuwela
Kegalla, Pelmadulla
Warakapola Polgahawela
Mapalana Nakiadeniya
Walpita, Mirigama,Veyanoda, Mahara

Recommended Varieties

1. Cayenne = Smooth cayenne = "Kew" Pineapple in SriLanka
2. Queen = "Mauritius" in SriLanka
3. Singapore Spanish

Commercial varieties in SriLanka

Characters Kew Mauritius
1.Presence of spins in leaves No Yes
2.Quality of flesh Very Good Excellent
3. Canning quality Very Good Fair
4. Fruit Yield High Average
5. Fruit weight (kg) 2.5 - 4 1.2 - 2
6. Shape of the fruit Cylindrical Conical
7. Color of the ripen fruit Yellow with green mottling Golden yellow
8. Flavor and aroma Pleasant Excellent
9. Wilt resistance Susceptible Moderately susceptible
10. Drought resistance Moderately resistant Resistant
11. Farmer preference Medium High
12. Cultivated extent Very low (5%) Very high (95%)

Diseases of Pineapple

1. Pineapple wilt
2. Yellow spots
3. Heart/root rot
4. Butt rot
5. Phythium rot
6. Acetic souring
7. Glassy spoilage
8. Yeast fermentation

Pineapple wilt
Symptoms
  • Slow growth on roots
  • Inhibit the root actions
  • Deteriorating of root tissue
  • Red colour leaf tips
Control
  • Select the suitable land
  • Controlling ants and mealy bugs
  • Using healthy plants, pretreatment of suckers before planting
  • Control the plant density (Desukering after harvesting)
  • Weeds control
  • Shade control
  • Control the excess fertilizer application
Pests of Pineapple
1. Mealy bug
2. Fruit borer
3. Stem borer
4. Nematodes
5. Rats
6. Termites
7. Pineapple bug/beatle
8. Symphylids
9. Pineapple mites
10. Scale insects

Control of pineapple pest and diseases
Name Chemical Time of application Concentration
1.Mealy bug Selecron / Tokuthion Preplanting and 5,8 and 14 months after planting 30 ml liquefy in 10 l of water
2. Head /root rot Ridomil / Mancozeb Preplanting ,dip the suckers 5 minutes in the mixture Ridomil 200 ml+ 100 l of water
Mancozeb 10 g + 100 l of water
3. Pythium rot 1.Mancozeb
2.Topzin
If disease present only 5.0g liquefy in 10 l of water

Climatic Requirements
Elevation
Up to 1000 m from the sea level ( higher elevations fruit contains high acidity)

Optimum temperature
24- 270 C

Mean Annual Rain fall
1000 mm (635 - 2500 mm)

Low country wet & intermediate zones more suitable (with supplementary irrigation Dry zone also suitable)

Well drained , deep and gravel soils are much better.

Poor drainage soils are not good

Optimum soil PH = 5.5-6.5

Salinity and alkalinity soils are not good except little acidity and heavy clay

Should be exposed to sunlight in the open field or intercrop with young or old coconut

Ca and Mn rich soils are not good. (Cholorosis may appear)

Planting Material

Type of suckers Duration from planting to harvesting (months)
1. Ground suckers 12 -14
2. Stem suckers 14 - 16
3. Slips 20 - 22
4. Crown 24
5. Tissue culture plants 15 - 18
6. Seedling 30

Planting material production ratio
Types of planting material Ratio
1. Crown splitting 1:20
2. Stem sections 1:30
3. Normal suckers per plant 1: 2 - 3
4. Seedlings per fruit (by artificial cross pollination)    1:150
5. Suckers from decapitation per plant 1:20
6. Tissue culture plantlets per shoot 1:6000

Plants requirement (ha)

Planting System Mono crops Intercrop with coconut
1. Single row method (spacing 2 x 0.3 m)  14,000 10,000
2. Double row method (1.5 x 0.3 m)
(Two double 0.6 m)  
27,000    16,000

Pretreatment of suckers
1. Insecticides
Mix selecron/tokuthion 300 ml in 100 l of water , dip the suckers 5 minutes in this solution.
2. Fungicides
Mix ridomil 200 ml in 100 l of water, dip the suckers 5 minutes in this solution.

Hormone Application

Apply to getuniform fruit setting & off season fruit production

Time & Method of application

Five months before the harvesting. Should contain 30 - 35 leaves and the age at 8 - 10 months

Hormone Trade Name Applying Quantity Application Rate/tree
1.CaC2 Calcium Carbite 30g + 1Lit. of water 50 ml
2. NAA Plantifix 4.5 Lit. of water 50 ml
3. Ethylene Ethral 1ml + 5Lit. of water 50 ml

Pineapple hybridization
Steps:- 1. Cross pollination

  • Followers opening at 9-10 AM
  • Not necessary to emasculate,Not necessary to isolate the plants or flowers
  • Anthers collected to small box by forceps at around 10 AM
  • Single anther rubbed over the stigma with forceps
  • Pollinated flowers are net covered
  • Crossed fruits should be labeled
  • Ripen fruits are separately harvest for seed extraction
Steps:- 2. Collection & germination of seeds
  • Cut the ripen fruits & get the hybrid seeds
  • Clean the seeds with water
  • Seeds germination (4-6 weeks) - Seeds will be placed on bricks
  • Keep on a water bath
  • Half of the bricks should be get wet
  • It has to be covered with polyethylene orpiece of flat glass
Steps:- 3. Nursery Management of Seedlings
  • 30-45 days old seedlings will be planted in the seedling trays & kept for 6 months
  • Seedlings will be replanted in the field nursery & kept for 6 months
  • Total period for nursery is about 1 year
Steps:-4. Evaluation of hybrid lines in the field
  • Lines should be evaluated by using fruit to row planting system
  • Spacing 1x2 m (All the seedlings of one fruit should plant in one row)
  • Plants should be selected forGene-typically differences,Characters for high yields & qualities
  • Selected plants should be propagated by vegetative suckers
  • Progeny screening & data collection should be continued up to third generation
Steps:-5. Adaptability testing
Different locations (NCVT trials)

  • Single row system should be adapted (spacing 0.30 x 1.00 m)
  • Compare with recommended varieties
  • Growth, yields & quality characters
  • Data should be collected from the ratoon crops

Harvesting & post-harvest technology
Value Added Products

Cordials, canned products , jams, alcohol (wine), syrup, dehydrated products for confectionery, ice cream.

Economics & Marketing
Problems and Constraints in pineapple cultivation

1. Climate change - Drought and high rain fall
2. Less land availability
3. High investment
4. Lack of good varieties
5. Lack of planting material
6. Weed
7. High cost of inputs
8. Lack of laborers
9. Pest and diseases (esp. pineapple wilt)
10. Price fluctuations
11. Lack of technical knowledge

Harvesting & post-harvest technology
Value Added Products
Cordials, canned products, jams, alcohol (wine), syrup, dehydrated products for confectionery, ice cream.

Friday, December 13, 2013

Beli (Bael fruit, Golden apple) :
 Marme aeglelos (L) Corr

Introduction

Nutritive Values

(per 100g edible portion)
Protein 1.8 g
Fat 0.3 g
Carbohydrates 31.8 g
Calcium 85.0 mg
Phosphorus 50.0 mg
Iron 0.6 mg
Carotene 55.0 mg
Thiamine 0.13 mg
Riboflavin 1.19 mg
Vit. C 8.0 mg
Medicinal Values / Uses
Useful for the treatment of diarrhea as well as constipation. Ripe fruit has a special laxative effect ; good source of energy ; good for amoebiasis.
Major Growing Areas
Wet and intermediate zones
Nature of cultivation
Naturally grown and in home gardens.

Recommended Varieties

Local Cultivars

Harvesting & post-harvest technology

Value Added Products
Beli cream, beli juice; candy

Economics & Marketing

Availability
April - September
Crop: Beli (Beli fruit)
Activity Responsibility Indicators Time Frame
Station Officer
Collection and evaluation of
germplasm.
Horana Thelijjawila S.S.Weerasinghe No.of selctions identified 08 Yrs
(2002-2010)
 

Sunday, December 8, 2013


Quality foods exporters
                    (Organic fruits and vegetables)

There are many difficulties to find quality foods in our world. 
 solution is contact with quality foods exporters.
‘’We provide quality & healthy foods  only’’
            
Call-0718082843    
 
E.A. EPA CHANDRAKUMARA.
DEHIGAHALANDA. 
AMBALANTHOTA 
SRILANKA    (kanchanagayan4you@gmail.com)