Abstract
Nang Nhen rice, a traditional specialty variety of the Bay Nui mountains area of An Giang Province, is being degenerated. The restoration of Nang Nhen rice is carried out in order to retain good quality characteristics as well as productivity of this variety. By applying the SDS-PAGE technique and 2-acetyl-1-pyrroline (2AP) content, the three Nang Nhen lines having good quality characteristics as well as yield have been restored. The selected lines have short duration and good eating qualities, high protein content; low amylose and high yield potential. The aromatic characteristic of these lines was analyzed by using KOH (1.7%) method and the 2-acetyl-1-pyrroline content was analyzed by gas chromatography–mass spectrometry (GC-MS). Three lines NN12-2, NN13-5 and NN13-6 have short growth duration (112-119 days), high protein content (10.6%), and low amylose (14.72%), medium grain rice (6.3 mm), with good tolerance to pest and disease and stable fragrance.
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