Sweet Orange :  

Citrus sinensis (L) Osbeck 

 

Introduction
Nutritive Values
(per 100g edible portion)

Energy	48.0 k cal
Protein	0.7 g
Fat	0.2 g
Carbohydrates	10.9 g
Calcium	26.0 mg
Phosphorus	20.0 mg
Iron	0.3 mg
Carotene	1104.0 mg
Thiamine	60.0 ug
Riboflavin	20.0 ug
Vit. C	64.0 mg

Medicinal Values / Uses
Predigested food. Rich source of energy; useful on fever, dyspepsia, constipation, bone diseases, dental diseases, scurvy, cardiovascular diseases, tuberculosis, asthma, bronchitis, cough and cold, acne.

Major Growing Areas(in sri lanka)
Bibile, Moneragala, Badulla, Matale, Jaffna, Puttalam, Anuradhapura, Ratnapura

Recommended Varieties
Bible sweet, Bibile seedless

Crop Management
Nature of cultivation
Widely scattered ; few orchards; also in home gardens.

Harvesting & post-harvest technology
Value Added Products
Cordial, juice, squash, marmalade, jams ; rind for perfumery

 

 

Economics & Marketing
Availability
February - April

 

Crop : Citrus (Lime, Sweet Orange, Mandarin)
Program : Crop Improvement

Activity	Responsibility		Indicators	Time frame
	Station	Officer
Germplasm collection, introduction and evalution of lime	Monaragala	U.B. Dissanayaka	No. of varieties collected	Continuous
Germplasm collection, introduction and evalution of sweet orange	Moneragala	U.B. Dissnayaka	No. of varieties collected	Continuous
Germplasm collection, introduction and evalution of Mandarin	Horana HORDI	S. Heenkenda	No. of varieties collected	Cont.

Program : Crop Management

Activity	Responsibility		Indicators	Time frame
	Station	Officer
Studies on off-season flowering of lime	Moneragala	U.B. Dissanayaka	No. of harvest per year	3 Yrs (2002 - 2005)
Studies on propagation techniques of mandarin	HORDI, PGRC
Studies on flower induction of in mandarin	Horana

 

 

 

Program : Crop Protection

Activity	Responsibility		Indicators	Time frame
	Station	Officer
Integrated control measures of scale insects, mealy bugs and aphids, in lime and sweet orange	Bandarawela
Integrated control of scale insects, mealy bugs and aphids in mandarin	Horana	G. Rathasinghe	Number of measures	5 Yrs (2002 - 2007)
Studies on management of tristressa and other virus diseases in citrus	HORDI
Production of antiserum for greening disease	Homagama	E.M. Dassanayaka W.G.S. Perera	Indexing method	01 Yr (2002 - 2003)
Virus Indexing	Homagama	E.M. Dassanayaka		Continous

Program : Planting Material Production

Activity	Responsibility		Indicators	Time frame
	Station	Officer
Production of virus free planting materials of citrus species	HORDI Moneragala	U.B.Dissanayaka	No. of virus free planting material produced	Cont.

Program : Soil Fertility and Nutrient Management

Activity	Responsibility		Indicators	Time frame
	Station	Officer
Studies on application of micro nutrients as foliar sprays to increase crop yield
Mandarin	Horana
Sweet orange	Bandarawela
	Moneragala	U.B. Dissanayaka	Information on Yield increase	3 Yrs (2002 - 2005)

Program : Post Harvest Handling

Activity	Responsibility		Indicators	Time frame
	Station	Officer
Storage studies on lime	FRU	K.H. Sarananda	Documatation	1 Yr (2002 - 2003)

I tried to provide details about present situation  in Sri lanka (about this crop). if u want further details please sent me a massage .