LIBRO-CONGRESO-CITRUS

S22O01
The development of citrus industry in China during the last decade
Deng X.X.
Key Laboratory of Horticultural Plant Biology of Ministry of Education, Huazhong Agricultural University, China.
xxdeng@mail.hzau.edu.cn
Citrus industry developed very quickly during the last decade in China. The total production increased from
8.78 MMT (million metric tons) in 2000 to 26.45 MMT in 2010; during the same period, the import and export
volume reached 105.2 and 931.6 thousand tons respectively. The distribution and the variety structure
also changed. The scattering citrus production over the southern provinces has been concentrated to the
advantageous areas and formed 4 dominant belts. More sweet oranges are grown and their proportion
increased quickly even though mandarin still accounts for two thirds of total citrus acreage. Among the
new plantation of sweet oranges, navel oranges are the main types for the newly developed orchards. It
is remarkable that the exploring of late harvest mandarin of local varieties including ‘Shatangju’, ‘Nianju’,
etc., has extended the fresh market supply. The promotion of late varieties, coupling with the extension of
late harvest technology in the areas without frost in the winter, has efficiently improved the fresh market.
More packinghouse and packing lines have been invested, especially in the navel orange producing areas.
Unfortunately, the orange juice production in China is still a short leg. Huanglongbing, an old disease in
south part of China, has been a problem for Chinese citrus industry. However, there are also areas with
good control of this disease since the integrating protocol has been adopted efficiently. Chinese citrus
industry is encountering the challenge of quickly increasing labor cost and the lack of young workforce.
A national system for citrus under the CARS (China Agricultural Research System) project sponsored by
the central government was set up in 2008. A total of 24 scientists have been stably financial-sported and
26 stations in the main producing areas have been set up by the CARS, aiming at germplasm exploring,
new variety development, cultural practices, post-harvest and processing, mechanization and economy of
citrus.
S22O02
Risk assessment of citrus yield based on yield minus deviate index and risk probability
Huang S.
Citrus Research Institute of Chinese Academy of Agricultural Science and School of Economics & Management of Southwest University;
(CRIC), China. huangsen01@sina.com
Using the citrus yield minus deviate index and citrus risk probability, the citrus yield risk of the whole nation
of China, Zhejiang province, Jiangxi province, Hunan province and Chongqing municipality were evaluated.
The citrus yield minus deviate index showed the deviate trend on citrus yield, caused by harmful environment
conditions, such as bad climate and diseases, etc. The citrus risk probabilities represent the frequency of the
citrus yield minus deviate trend. The results demonstrated that the order of citrus yield minus deviate index,
from high to low were Zhejiang, Hunan, Jiangxi, Chongqing and the whole nation of China. The study also
indicated that citrus risk probability of Hunan was the highest and Chongqing was the lowest.
S22O03
Recent trends of the citrus industry in Chile
Ortúzar J.E., and Valenzuela M.
Chilean Citrus Committee, Chile. jortuzar@agricom.cl
The Chilean Citrus industry has undergone a major transformation over the last 15 years. A shift from a
domestic to an export market oriented industry encouraged a wide renovation of plantings, a significant
change of production and postharvest practices and a steady improvement of fruit quality. Total planted
area, currently estimated at 19,000 ha, has not increased significantly. Orange is the main species with
8,000 ha, followed by lemon with 7,090 ha and easy peelers with nearly 4,000 ha. Navel oranges and easy
peelers exports grow steadily as new plantings come into bearing, while lemon plantings and exports have
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S22