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Introduction
and Importance:
Swingle
(1943) devided the genus citrus into three independent genra:
Citrus, Poncirus and Fortunella. All three genra belong to
sub-family Aurantiodeae of the family Rutaceae. Citrus cultivars are
grown in varying quantities in countries with tropical or sub
tropical climate. Citrus stands first in area and production among
the worlds tree fruits. In Paksitan also, citrus fruits are the most
important fruit crops grown on the ara of 160,000 hectares with
production of 1.5 MMT annually. Citrus fruit is grown in all four
provinces of Pakistan but Punjab produces over 95% of the crop
because of its greater population, favourable growing conditions and
adequate water. Citrus is devided into different groups Sweet
oranges, Mandarine, Grape fruit, Lemon and Lime which are being
grown commercially.
Area
And Production Of
Citrus In Pakistan:
|
Year
|
Total
Area (Hectares)
|
Production(Tones)
|
|
1994-95
|
190743
|
19342777
|
|
1995-96
|
193573
|
1959464
|
|
1996-97
|
194374
|
2002563
|
|
1997-98
|
196098
|
2036963
|
|
1998-99
|
197021
|
1861468
|
Major
Citrus Growing Areas in Pakistan:
Punjab
Distt. Sargodha, Sahiwal, Lahore, Sialkot, Jhang, Minwali,
Multan, Gujranwala
NWFP
Mardan, Peshawer, Swat, Swabi, Noshera, Hazzara
Sind
Sukkur, Khairpur, Nawabshah
Baluchistan
Mekran, Sibi and Kech.
Varieties:
Following
are the main commercial varieties:
Sweet Orange
Succri,. Mausami, Washington Navel, Jaffa, Red Blood, Ruby Red and
Valencia Late.
Mandarines
Feutrells Early and Kinnow
Grape Fruit Mash Seedless,
Duncan, Foster and Shamber
Lemon Eureka, Lisbon Lemon
and rough Lemon
Lime Kaghzi Lime and
Sweet Lime
Propagation:
All the improved varieties are propagated by means of budding on
rough lemons or sour orange. Rootstocks are generally grown through
seed, T budding/T
grafting are the usual method of citrus cultivars propagation.
Budding may be done durng spring (Feb-March) and autumn
(August-October) when bark slip freely from both scion and stock.
Bud should be sselected from mature wood of
productive and healthy trees. In sweet lime propagation
through cutting is a common method.
Soil
And Climate:
Citrus trees can be grown on a wide range of soils, including deep
sandy loam, loam and clay loam.
However, they do not grow well in very heavy, clayey, sandy,
alkaline or water logged soils. Citrus fruits trees are grown in
tropical and sub-tropical climate. Temperature is the main factor
affecting, time of blooming,
maturity, producting
and fruit quality of citrus.
Pruning:
At the time of transplanting the top portion should be balanced with
the roots by removing some of the leaves, if necessary. Annual
pruning is done to remove dried, diseased and those branches
overcrowding the top of the tree. For a young citrus tree to have
good frame work, no branches should be allowed on the main stem and
two to four evenly spaced main limbs should be selected to provide
balanced frame work. In Pakistan however, no systematic pruning is
followed except for removal of dried, diseased and unwanted twigs.
Water
Management:
The
preferred method of irrigation is a basin round each tree the size
of. There
should be channels connecting basins so that irrigation of
fruits trees can be independent of the intercropped area between the
tree lines which have different water requirements. Growth sensitive
periods to water shortage are flowering time (Feb/Mar), fruit
setting (Apr/May).
Fertilizers
and Manures :
Apply
FYMs at the rate of 40 to 80 kg per tree during the winter season in
Dec/Jan before flowering.
Apply
3-4 kg SSP and 1.5 to 2 kg of Urea 15-20 days (Jan/Feb) febore
flowering.
Supply
a further amount of Urea of 1.5 kg per tree after fruit setting
(Mar/Apr).
If
necessary 1.5 kg of Potassium Sulphate may be applied at the time of
applying FYM.
Watering
is essential after each application of fertilizer.
Pessts
and Diseases:
Aphids:
These are small
brown coloured insects. They suck the sap from the leaves and
branchesand cause great damage to trees and reduction of yield.
Aphid attack is severe during Feb and April. Use Dizenon 40% or
Eldrine 20%, 1 kg in 450 litres of water. Insecticides should not be
applied within 6 weeks of marketing the fruit.
Citrus
Leaf Minor:
This
attacks the leaves. the attacked leaves become curled and deformed.
If causes great losses in growth and yield.Use Malathion 57 or
Matasystox 50% at the rate of 500 grams in 450 litres of water per
acre for its control.
Lemon
Butterfly:
This
also attacks fresh leaves. It can be controlled effectively by using
Malathion and Metasystox
Citrus
Whitefly:
This
attacks the fruits and causes great losses in yield and quality.
This pest can also be
controlled by using Malathion 57%. This should not be applied within
6 weeks of marketing the fruit.
Red
Scales:
These are
sucking types of insects and cause great damage to kinnow and sweet
oranges in Punjab. They can
survive throughout the year. Use Parathion or Malathion at the rate
of 752 grams in 450 litres of water per acre for its effective
control.
Foot
Rot:
This is a
fungus which attacks the root of the trees. Its attack is severe in
poorly drained soils. The affected tree gradually dries up. Remove
the soil from around the affected trees without damaging the roots
and improve on farm drainage for its effective control.
Withertip:
This disease is caused by nutritional deficiencies. The branchess
and fruits of the affected trees start drying and the tree becomes
uneconomical to maintain. Apply a balanced dose of Bordeaux Mixture
450 after cutting affected branches from the trees.
Citrus
Canker:
This is a
bacterial disease. It attacks leaes and the fruits. It forms canker
like spots on the leaves and stems of the fruit causing great
reduction in yield and quality of the fruit. There is no effective
treatment for this disease except to cut and remove the affected
trees and spray Formaldehyde at the spots from where the diseased
trees have been removed.
Harvesting:
Picking
of citrus fruits is done almost throughout the year. The fruit
should be picked when it is fuly ripe. It will not develop taste or
sugar in storage after picking. The best method is to pick the
individual fruit by holding it in one hand and cutting the stalk
with a knife and collecting it into boxes or baskets to avoid injury
to the stem. The average yield expescted from different types of
fruits of various species are 500 to 1000 fruit per tree.
Pakistan is blessed with a climate ideally suited to the farming of
all kinds of fruits - rich in taste and juicy. Farmers have been
developing new varities of fruit by grafting one exotic variety with
other.
Season of Kino in Pakistan starts from December and last till April.
Kinnow is very delicious in taste and if treated with proper
fungicide and wax and careful handing and storage of Kinnow at about
4 Degree Centigrade can retain it’s freshness until 2 months.
Pakistan is one of the few countries in the world where some of the
varieties of fruits grown in cool temperate climate such as apples,
pears, plums and cherries while in warm temperate climate such as
apricots, grapes, pomegranates and melon and in tropical and
subtropical climate such as bananas, mangoes, dates, guava and
citrus so the fruits are usually available throughout the year.
Nature has blessed Pakistan with ideal climate for growing a wide
range of delicious fruits and large varieties of vegetables. Over
the years, Pakistani experts have developed unique stains of exotic
fruit varieties unmatched for their rich flavour and taste. From the
selection of the finest fruits grown, a reasonable quantity is
processed and properly packed for sales and consumption in local
market and exporting abroad.
Pakistan exported 268,741 tonnes of fruits worth US$ 79.83 million
during 2000-01, while the export of vegetables stood at $22.50
million. Out of the total exports of fruits and vegetables the share
of mangoes was 53,443 tonnes valuing $16.54 million, showing an
increase of 43 per cent over the 1999-00.
Agriculture is the main contributor to GDP either directly or
indirectly in the form of agro-based industries. The production of
fruits and vegetables is not fully utilised and after their domestic
consumption a major part is wasted due to lack of infrastructure,
storage and processing facilities. The wastage quantity can be
utilised by just streamlining and regulating the system from grower
to export markets.
Pakistan produces large varieties of mangoes, its production has
increased from 908 thousand tonnes in 1995-96 to 937 thousand tonnes
in 1999-00. World production of mangoes stood at 19 million tons in
1995, which rose to 23.8 million tonnes in 1999, registering an
increase of 24.75 per cent over the five years. Philippines and
China have achieved much over 100 per cent increase in mango
production during that period. Thailand is another country, which
has also registered a significant increase. Rise in Pakistan's
annual mango production during 1995-99 is only 3.4 per cent. Our
share in global mango production in 1999 is 3.8 per cent.
Beside mangoes, Pakistani kinoos and apples are also in great demand
in the international market. Balochistan produces about 480,000
tonnes of apples annually but only 3,000 tonnes were exported last
year. About 30 per cent apples wasted every year in Balochistan
only. Recently the government has given approval for the
establishment of treatment plant in Quetta. While two plants are
about to start working in Karachi. It is estimated that after
starting of these treatment plants export of apples would be
increased to about 20,000 tons per annum. There are good investment
opportunities for the private sector to establish processing units
near the fruits and vegetable growing areas. This would not only
prevent wastage but would also help to earn foreign exchange.
There are also bright prospects for exporting fruit juices and
pulps. By establishing modern plants, Pakistan can earn foreign
exchange three times more than that being earned by export of fresh
fruits and vegetables.
Production of Fruits
(Qty '000' tonnes)
Year Citrus Mango Apple Banana Apricot Almonds Grapes Guava
1995-96 1960 908 554 82 191 49 72 442
1996-97 2003 914 569 83 188 49 74 448
1997-98 2037 917 573 94 189 49 74 455
1998-99 1862 916 589 95 191 50 76 468
1999-00 1943 937 377 125 121 32 40 495
Source: Federal Bureau of Statistics
Kinnos
Sunny winters in Pakistan yield a large variety of citrus fruits.
The juicy kinno is a unique hybrid of two varieties of California
Oranges. It has a soft skin which is easy to peel and has a lovely
fragrance.
Pakistan is fortunate in having great diversity in its soil and in
its ecological and climatic conditions, ranging from extremely warm
to temperate, to very cold. This enables the country to grow many
kinds of trees, plants, shrubs, vines and creepers which yield a
large variety of fruits and vegetables.
Pakistan is primarily an agricultural country and it grows a wide
range and large varieties of fruits & vegetables. Export of fruits
and vegetables is subject to compulsory grading and certification by
Agriculture and Live Stock Marketing and Grading Department and
Plant Protection Department respectively. Principal fruits which are
being exported includes mangoes, citrus (organs, kinno, lemons,
grape fruits), apples, grapes, dates apricots and melons, etc.
•
Dryport at Sargodha for timely citrus exports
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