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Citrus sp.

Authority	L.
Family	Magnoliopsida:Rosidae:Sapindales:Rutaceae
Synonyms
Common names	agrumes, cam, citrus, jeruk, krauch, limau, mak, mull, shouk, Zitrone
Editor
Ecocrop code	722

Notes
SOURCES Sims D (pers. comm.) Landon J 1984 pp 280 284 293 [TEXT, DRA, DEP, PH, FER, TEMP] Rehm S 1991 pp 175-181 [LIG, KTMP, RAIN, DEP, DRA, PH, FER] Samson J 1986 pp 73-138 [TEMP, RAIN, TEXT, DRA, DEP, PH] Doorenbos J 1979 pp 83 Maas E 1990 pp 280 Rice R 1990 pp 46-59 [TEMP, LIMIT, RAIN, TEXT, DEP, DRA, FER, PH] Roecklein J 1987 pp 207 [USE] Eswaran H 1986 Kozlowski T 1977 pp 413 Williams C 1979 pp 183-199 [TEMP, RAIN, SAL, TEXT, DRA, PH] Edwards S up pp 217 Van Waveren E 1993 pp 59 Hockings E 1961b pp 175-179 [TEMP, KTMP, DRA, DEP, TEXT, PH] KILLING T Some species may withstand -7 to -10°C but all citrus types require almost frost free winters. Trees have been reported to withstand 50°C. GROWING PERIOD Perennial tree. Fruit after 2-8 years, depending on variety. Citrus trees generally give full yields for 20-40 years. However, there are also hundred-year-old plantations which are still economically viable. The yield cycle is 8-13 month in the subtropics and 6-7 month in the tropics. COMMON NAMES Citrus. FURTHER INF Citrus is grown between 45°N and 35°S. It originates in Southeast Asia and here it is grown up to 2000 m in elevation, in California up to 700 m, and in Spain up to 250 m. On the equator citrus does not do well above 1800 m. Low to medium humidity is best, and high winds can cause much damage. Photosynthesis pathway C 3 II. The yield of 4 to 7 year old trees is approximately 20 t/ha, 8-18 year old trees yield up to 35 t/ha, and 19-25 year old trees give 20 t/ha.
Sources