Grain quality of hybrid indica rices in China.
1985
Zhang Yun Kiong
Length:width of milled hybrid rice ranged from 2.3 to 3.2, averaging 2.7. Grains were medium-long or long. Chalkiness varied widely. All hybrids except Wei You 35 had fewer opaque areas than the semidwarfs. Shan You 32 and Shan You 36 were slightly chalky. Amylose content (AC) varied from 17% to 30% in 14 nonwaxy hybrid rices. Four hybrids, including Shan You 2 and Zhang You 2, had intermediate AC. Shan You 85 and Jun You 85 had low AC. The hybrids had intermediate to low gelatinization temperature (alkali spreading value of 4-7 in 1.7% KOH), and softer gel consistency. Shan You 2 had the best elongation ability (180%). Analysis showed that most indica hybrids had better appearance and cooking and eating quality than the two commonly planted semidwarfs.
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