RESUMO
39 aromatic indica rice (Oryza sativa L.) cultivars were characterized for Iron, Zinc, Calcium, Magnesium, Copper and ß-carotene contents. The ß-carotene contents were ranging from 1.23 to 9.9µg/g in brown and 0.08 to 1.99µg/g in milled rice. Among the mineral contents, Magnesium was found ranging from 855µg/g (Gham) to maximum of 1636µg/g (Badshahbhog) followed by Iron in 32µg/g (Jirga) to 218µg/g (Kalsal), Copper content from 2µg/g (Girga) to 1004µg/g (Gham), Zinc content from 25 (Gham) to 165µg/g (Ambemohar-157) and Calcium ranged from 14µg/g (Ambemohar pandhara) to 67µg/g (Kate chinoor). The study showed that the germplasm assessed is a good source of micronutrients and can be further exploited in breeding programme.
Assuntos
Oryza/química , beta Caroteno/análise , Cálcio/análise , Cobre/análise , Ferro/análise , Magnésio/análise , Zinco/análiseRESUMO
For the first time, 91 Indian rice (Oryza sativa L.) cultivars, belonging to non-basmati scented (77), basmati (9) and non-scented (5) categories, were quantitatively analysed for 23 headspace volatiles. In addition, the BADH2 marker related to 2-acetyl-1-pyrroline (2AP) synthesis is validated among the cultivars representing these categories. The non-basmati scented cultivars (15) excelled in 2-acetyl-1-pyrroline (2AP) content compared to basmati cultivars. The major aroma volatile (2AP) correlated positively with 1-tetradecene and indole, and negatively with benzyl alcohol. On the basis of nonanal, octanal, decanal and 1-octen-3-ol contents, basmati cultivars were different from non-scented cultivars. Benzyl alcohol, 2-phenylethanol, 2-amino acetophenone, indole, 1-hexanol and nonanoic acid exhibited significant variation among rice categories under study. This study reports 16 non-basmati scented cultivars with variations in the BADH2 locus rendering a marker based on 8bp deletion in BADH2 as unsuitable for MAS in rice cultivars under study.