特征特性:
該品種屬(shu)兩系雜交遲熟晚稻(dao)。省區試(shi)結(jie)果:在我省作晚稻(dao)栽培,全生育期120.0天。株高104.7厘米(mi)(mi),株型適中(zhong),長(chang)(chang)勢好,劍葉長(chang)(chang)直,分蘗(bo)力(li)強。每畝有效穗(sui)(sui)19.8萬穗(sui)(sui),每穗(sui)(sui)總粒數(shu)147.8粒,結(jie)實率(lv)(lv)84.6%,千粒重(zhong)24.9克。抗(kang)性:葉瘟(wen)平均3.9級(ji)(ji),穗(sui)(sui)頸(jing)瘟(wen)平均6.0級(ji)(ji),稻(dao)瘟(wen)病綜合(he)抗(kang)性指數(shu)3.9級(ji)(ji),稻(dao)曲病3級(ji)(ji)。米(mi)(mi)質:糙(cao)米(mi)(mi)率(lv)(lv)83%,精(jing)米(mi)(mi)率(lv)(lv)73.8%,整精(jing)米(mi)(mi)率(lv)(lv)70%,粒長(chang)(chang)6.6毫(hao)米(mi)(mi),長(chang)(chang)寬比(bi)3.1,堊白粒率(lv)(lv)29%,堊白度(du)3.8%,透明度(du)2級(ji)(ji),堿消值5.0級(ji)(ji),膠稠度(du)50毫(hao)米(mi)(mi),直鏈淀粉含量20.0%。
產量表現:
2011年省區試(shi)平均(jun)畝(mu)產(chan)(chan)(chan)531.84公(gong)斤(jin),比(bi)(bi)對照天優華占(zhan)增產(chan)(chan)(chan)5.01%,增產(chan)(chan)(chan)極顯著;2012年省區試(shi)平均(jun)畝(mu)產(chan)(chan)(chan)562.02公(gong)斤(jin),比(bi)(bi)對照天優華占(zhan)增產(chan)(chan)(chan)4.21%,增產(chan)(chan)(chan)顯著。兩(liang)年區試(shi)平均(jun)畝(mu)產(chan)(chan)(chan)546.93公(gong)斤(jin),比(bi)(bi)對照增產(chan)(chan)(chan)4.61%,日(ri)產(chan)(chan)(chan)量(liang)4.56公(gong)斤(jin),比(bi)(bi)對照高(gao)5.92%公(gong)斤(jin)。
栽培要點:
適時播(bo)種(zhong)(zhong),6月15日左右(you)播(bo)種(zhong)(zhong),湘北適當早播(bo),秧田每畝(mu)播(bo)種(zhong)(zhong)量10公(gong)(gong)斤,大田每畝(mu)用種(zhong)(zhong)量1.5公(gong)(gong)斤左右(you),稀播(bo)勻播(bo)培育多蘗(bo)壯秧。合(he)理密植:一般(ban)5.5葉(xie)左右(you)移栽(zai),栽(zai)插密度20厘米×20厘米,每穴栽(zai)插2粒(li)谷(gu)秧,拋(pao)栽(zai)密度每平方(fang)米23穴,每畝(mu)基本苗(miao)(miao)7-8萬(wan)。肥(fei)水(shui)管理:施(shi)足基肥(fei)、早施(shi)追肥(fei),中等肥(fei)力(li)土(tu)壤施(shi)純氮12公(gong)(gong)斤、五氧化二(er)磷10公(gong)(gong)斤、氧化鉀(jia)8公(gong)(gong)斤。分(fen)蘗(bo)期(qi)干濕(shi)相(xiang)間促分(fen)蘗(bo),每畝(mu)總苗(miao)(miao)數達到28萬(wan)苗(miao)(miao)時及時落水(shui)曬(shai)田,孕穗期(qi)以濕(shi)為主,抽穗期(qi)保持田面淺水(shui),灌漿期(qi)干干濕(shi)濕(shi)壯籽,切忌落水(shui)過早。病蟲(chong)防治:注意根據病蟲(chong)情報及時防治紋(wen)枯病和螟蟲(chong)、稻(dao)飛虱等病蟲(chong)害。
審定意見:
該(gai)品種達到(dao)審(shen)定標準,通過審(shen)定。適宜在(zai)我省稻(dao)瘟病輕發區做(zuo)雙季晚稻(dao)種植。