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Advisor(s)
Abstract(s)
The objective of this work was to evaluate the grain biometric characteristics of 62 rice cultivars, which cover
Indica and Japonica subspecies, and different types of commercial rice like, Agulha (Indica rice cultivars),
Carolino (Japonica cultivars), aromatic (basmati and thai), integral rice, risotto, glutinous (waxy), wild and
parboiled rice. It was noticed that for the same group type of rice there are a great variance. Generally, the
Agulha, Aromatic and Integral rices commercialized in Portuguese trade are long (length high than 6 mm and
length/width ratio higher than 3) and risotto cultivars are medium size. The two studied glutinous rice cultivars
presented one cultivar long and other cultivar round (length lower than 5 mm and length/width ratio lower than
1.9). All rice cultivars presented high values of white vitreous, total whiteness, and low percentage of chalky
area, presenting a crystalline and translucent aspect, but there is an exception to integral rice cultivars due to
absence of polish operation during the milling process and for parboiled rice cultivars due to the effects of
parboiled treatment. Moreover the vitreous percentage was also high. There was a strong correlation between the
white vitreous values and total whiteness.
Description
Keywords
Rice cultivars biometry morphology color
Citation
Santos T, Lemos D, Guiné RPF, Correia PR. (2013) Contribution for the characterization of carolino rice cultivars. Proceedings of the VII Congreso Ibérico de Agroingeniería y Ciencias Hortícolas, Madrid, Espanha, Ref. C0087, 6pp.