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Y两优7号(湘审稻2008017)由湖南杂交水稻研究中心选育的迟熟杂交中籼稻。全生育期133天,秧龄期30天左右。株型松散适中,株高113厘米,茎秆粗壮,根系发达,分蘖能力强,生长旺盛,主茎叶片数15.9叶,剑叶直立,叶色浓绿。每667平方米最高苗数30万苗、有效穗18.3万穗。叶鞘稃尖无色,无芒,穗长26.5厘米,每穗总粒数217粒,结实率88%,千粒重27克。抗旱性能强,耐高温,耐肥抗倒,抗叶瘟、稻瘟病。2006年区域试验,每667平方米产量602.1公斤。
Y Liangyou 7 (Xiang Zhaodi 2008017) Late maturity hybrid indica rice cultivated in Hunan Hybrid Rice Research Center. The whole growth period of 133 days, seedling age of about 30 days. Moderately loose plant type, plant height 113 cm, thick stalks, roots developed, strong ability to grow, vigorous growth, the number of main stem leaves 15.9 leaves, upright flag leaves, dark green leaves. The maximum number of seedlings per 667 square meters 300,000 seedlings, ear 183,000 effective spike. Leaf sheath tip sharp, colorless, spike length 26.5 cm, the total number of grains per panicle 217, seed set rate of 88%, grain weight 27 grams. Strong drought resistance, high temperature resistance, anti-lodging, anti-leaf blast, rice blast. Regional test in 2006, 602.1 kg per 667 square meters.