Juliano et al. - 1993 - Grain Quality Evaluation of World Rices

Asia
I
n 1989, Asia produced 449.3 of the world’s 492.1 million t of
rough rice (FAO 1990b). Corresponding world rough rice consumption
in 1986-88 was 418.7 million t, of which Asia consumed
380.2 million t. Asia produces and consumes more than 90% of all rice.
Asia’s per capita milled rice supply in 1986-88 was 85 kg/yr (FAO
1990a).
Bangladesh
A
nnual
rough rice production was 25.5 million t in 1989 (FAO
1990b). Annual milled rice per capita consumption was 141 kg
in 1979-81 (FAO 1984), 137 kg in 1986-88 (FAO 1990a, IRRI
1991), and 154 kg in 1988 (Duff 1991). Important varieties by district
based on grain quality according to N.H. Choudhury (Bangladesh Rice
Research Institute, 1990, pers. commun.) are Rajshahi—Jhingasail, Rajasail,
and Indrasail (excellent); Bogra—White Biroi (very good), Purbachi
(good); Dinajpur—Kataribhog (excellent); Khulna—Patnai (very
good), Bhaital (good); Faridpur—Aman (good); Chittagong—Pajam
(very good); Sylhet—Tepi boro (very good); Mymensingh—Red Biroi
and Bashful (excellent); Dhaka—Kataribhog, Nizersail, and Red Biroi
(excellent), Pajam (Mahsuri) and Jamir (very good), and Irrisail (IR20)
(good).
A consumer demand study found that the retail market price for
parboiled rice in four districts correlated positively with length-width
ratio and volume expansion, and negatively with 1000-grain weight
and moisture content (Choudhury et al 1991). Market parboiled samples
of Kalaribhog had 27-28% AC and Pajam had 27-29% AC (RCMD 1987,
1989). Retail market price for raw rice correlated positively with gel
consistency values and negatively with percent brokens and cooking
time.