摘要
为筛选适宜湘南地区推广的高产优质再生稻品种,2023 年在永州市农科所对泰优 390、Y两优 9918、荃优粤农丝苗、深两优 475 和晶两优华占进行品种比较试验.结果表明:5 个供试品种头季稻均在 8 月 20 日以前成熟,再生稻均在 9 月 20日前齐穗.其中,深两优 475 头季、再生季及两季总产量均最高,分别为 9 442.5、4 878.6、14 321.1 kg/hm2;晶两优华占、深两优 475 再生力较高,分别为 1.34、1.23.5 个品种再生稻稻米透明度差异不显著,泰优 390、深两优 475 和荃优粤农丝苗糙米率分别为 79.5%、79.4%和 78.8%;泰优 390、深两优 475、荃优粤农丝苗整精米率分别为 62.3%、59.7%、62.1%,品种间稻米透明度及长宽比差异不大.5 个品种均适宜在湘南地区作再生稻种植,深两优 475 最优.
Abstract
To screen high-yield and high-quality ratoon rice cultivars suitable for promotion in southern Hunan,Yongzhou Institute of Agricultural Sciences compared the production performance of'Taiyou 390','Y Liangyou 9918','Quanyou Yuenongsimiao','Shenliangyou 475',and'Jingliangyouhuazhan'in 2023.The results showed that first-season rice of all the five cultivars was harvested before August 20,and the ratoon rice was in full heading before September 20.The yields of the first-season rice,ratoon rice,and two seasons of'Shenliangyou 475'were the highest,reaching 9 442.5,4 878.6,and 14 321.1 kg/hm2,respectively.The regeneration capacities of'Jingliangyouhuazhan'and'Shenliangyou 475'were high,reaching 1.34 and 1.23,respectively.There was no significant difference in ratoon rice transparency among the five cultivars.The brown rice rates of'Taiyou 390','Shenliangyou 475',and'Quanyou Yuenongsimiao'were 79.5%,79.4%,and 78.8%,respectively.The head rice rates of'Taiyou 390','Shenliangyou 475'and'Quanyou Yuenongsimiao'were 62.3%,59.7%and 62.1%,respectively.The ratio of length to width and rice transparency had no significant difference among the five rice cultivars.All the five rice cultivars,especially'Shenliangyou 475',were suitable for ratoon rice cultivation in southern Hunan.
国家科技期刊平台
NSTL
维普
万方数据