Abstract
Nine rice quality traits, including appearance quality,milling quality and cooking quality of 48 early indica rice varieties planted in early and late seasons were determined.In the light of ratio of length to width of brown rice, percentage of brown rice, percentage of head rice, percentage of chalky grain, chalkness and amylose content, the percentage of varieties which reached the first-class good quality traits standard was 58.33%?4.17%?87.50%?2.08%?0 and 10.42% in early season respectively, and that was 58.33%?68.75%?97.92%?14.58%?12.50% and 22.92% in late season respectively. Based on national standard for valuating good grain quality(issued in 1999), the results of identification showed that Yuanzhen 397 had the third-class of good quality traits and could be grown in early season,Xinhuangzhan owned the first-class of good quality traits and Minghui 63.Suifengzhan,Luhuangzhan and American jasmine fragrant rice possessed the second-class of good quality traits and they might be planted in late season. Moreover the changing characters of quality traits under different environmental conditions and the importance to improve determining method for increasing efficient of rice breeding for good quality were also discussed.
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Claims 15
Claim · model-written summary
In the early season, 58.33% of varieties met the first-class length-to-width brown-rice criterion.
Verbatim
e0“ratio of length to width of brown rice, percentage of brown rice, percentage of head rice, percentage of chalky grain, chalkness and amylose content, the percentage of varieties which reached the first-class good quality traits standard was 58.33%?4.17%?87.50%?2.08%?0 and 10.42% in early season respectively”
t0“early indica rice”
Claim · model-written summary
In the early season, 4.17% met the first-class brown-rice percentage criterion.
Verbatim
e0“percentage of brown rice, percentage of head rice, percentage of chalky grain, chalkness and amylose content, the percentage of varieties which reached the first-class good quality traits standard was 58.33%?4.17%?87.50%?2.08%?0 and 10.42% in early season respectively”
t0“early indica rice”
Claim · model-written summary
In the early season, 87.50% met the first-class head-rice percentage criterion.
Verbatim
e0“percentage of head rice, percentage of chalky grain, chalkness and amylose content, the percentage of varieties which reached the first-class good quality traits standard was 58.33%?4.17%?87.50%?2.08%?0 and 10.42% in early season respectively”
t0“early indica rice”
Claim · model-written summary
In the early season, 2.08% met the first-class chalky-grain percentage criterion.
Verbatim
e0“percentage of chalky grain, chalkness and amylose content, the percentage of varieties which reached the first-class good quality traits standard was 58.33%?4.17%?87.50%?2.08%?0 and 10.42% in early season respectively”
t0“early indica rice”
Claim · model-written summary
In the early season, no varieties met the first-class chalkness criterion.
Verbatim
e0“chalkness and amylose content, the percentage of varieties which reached the first-class good quality traits standard was 58.33%?4.17%?87.50%?2.08%?0 and 10.42% in early season respectively”
t0“early indica rice”
Claim · model-written summary
In the early season, 10.42% met the first-class amylose-content criterion.
Verbatim
e0“amylose content, the percentage of varieties which reached the first-class good quality traits standard was 58.33%?4.17%?87.50%?2.08%?0 and 10.42% in early season respectively”
t0“early indica rice”
Claim · model-written summary
In the late season, 58.33% met the first-class length-to-width criterion.
Verbatim
e0“ratio of length to width of brown rice, percentage of brown rice, percentage of head rice, percentage of chalky grain, chalkness and amylose content, the percentage of varieties which reached the first-class good quality traits standard was 58.33%?4.17%?87.50%?2.08%?0 and 10.42% in early season respectively, and that was 58.33%?68.75%?97.92%?14.58%?12.50% and 22.92% in late season respectively”
t0“early indica rice”
Claim · model-written summary
In the late season, 68.75% met the first-class brown-rice percentage criterion.
Verbatim
e0“percentage of brown rice, percentage of head rice, percentage of chalky grain, chalkness and amylose content, the percentage of varieties which reached the first-class good quality traits standard was 58.33%?4.17%?87.50%?2.08%?0 and 10.42% in early season respectively, and that was 58.33%?68.75%?97.92%?14.58%?12.50% and 22.92% in late season respectively”
t0“early indica rice”
Claim · model-written summary
In the late season, 97.92% met the first-class head-rice criterion.
Verbatim
e0“percentage of head rice, percentage of chalky grain, chalkness and amylose content, the percentage of varieties which reached the first-class good quality traits standard was 58.33%?4.17%?87.50%?2.08%?0 and 10.42% in early season respectively, and that was 58.33%?68.75%?97.92%?14.58%?12.50% and 22.92% in late season respectively”
t0“early indica rice”
Claim · model-written summary
In the late season, 14.58% met the first-class chalky-grain criterion.
Verbatim
e0“percentage of chalky grain, chalkness and amylose content, the percentage of varieties which reached the first-class good quality traits standard was 58.33%?4.17%?87.50%?2.08%?0 and 10.42% in early season respectively, and that was 58.33%?68.75%?97.92%?14.58%?12.50% and 22.92% in late season respectively”
t0“early indica rice”
Claim · model-written summary
In the late season, 12.50% met the first-class chalkness criterion.
Verbatim
e0“chalkness and amylose content, the percentage of varieties which reached the first-class good quality traits standard was 58.33%?4.17%?87.50%?2.08%?0 and 10.42% in early season respectively, and that was 58.33%?68.75%?97.92%?14.58%?12.50% and 22.92% in late season respectively”
t0“early indica rice”
Claim · model-written summary
In the late season, 22.92% met the first-class amylose-content criterion.
Verbatim
e0“amylose content, the percentage of varieties which reached the first-class good quality traits standard was 58.33%?4.17%?87.50%?2.08%?0 and 10.42% in early season respectively, and that was 58.33%?68.75%?97.92%?14.58%?12.50% and 22.92% in late season respectively”
t0“early indica rice”
Claim · model-written summary
Yuanzhen 397 was third-class good quality and suited to early-season planting.
Verbatim
e0“Yuanzhen 397 had the third-class of good quality traits and could be grown in early season”
t0“early indica rice”
Claim · model-written summary
Xinhuangzhan was classified first-class good quality.
Verbatim
e0“Xinhuangzhan owned the first-class of good quality traits”
t0“early indica rice”
Claim · model-written summary
Minghui 63, Suifengzhan, Luhuangzhan and American jasmine fragrant rice were second-class good quality and may be planted late season.
Verbatim
e0“Minghui 63.Suifengzhan,Luhuangzhan and American jasmine fragrant rice possessed the second-class of good quality traits and they might be planted in late season”
t0“early indica rice”