品種名稱：嘉禾優175

      申請者：上海(hai)中科荃銀分子育(yu)種技(ji)術有(you)限公司

      育種者：上海中科(ke)荃銀(yin)分子育種技(ji)術(shu)有限(xian)公(gong)司(si)、中國水稻研(yan)究(jiu)所(suo)、安(an)徽荃銀(yin)高(gao)科(ke)種業(ye)股份有限(xian)公(gong)司(si)、嘉興市農業(ye)科(ke)學研(yan)究(jiu)院

      品種來源：嘉禾112A×中恢175

      特征特性：粳(jing)型三系雜交水稻(dao)(dao)品(pin)(pin)(pin)種(zhong)(zhong)。在(zai)長(chang)(chang)江(jiang)中下(xia)游作(zuo)一季中稻(dao)(dao)種(zhong)(zhong)植，全生(sheng)育期136.5天，比(bi)對(dui)照(zhao)豐(feng)兩優四號晚熟5.7天。株高(gao)(gao)124.3厘米(mi)(mi)，穗(sui)(sui)(sui)長(chang)(chang)24.2厘米(mi)(mi)，每(mei)畝有(you)效穗(sui)(sui)(sui)數16.3萬穗(sui)(sui)(sui)，每(mei)穗(sui)(sui)(sui)總粒(li)(li)數209.0粒(li)(li)，結實(shi)率(lv)(lv)(lv)78.9%，千粒(li)(li)重26.6克。抗性：稻(dao)(dao)瘟(wen)(wen)病綜(zong)合(he)(he)指(zhi)數兩年分別為3.0、3.0，穗(sui)(sui)(sui)頸(jing)瘟(wen)(wen)損(sun)失率(lv)(lv)(lv)最高(gao)(gao)級(ji)(ji)(ji)(ji)5級(ji)(ji)(ji)(ji)，白(bai)葉枯病5級(ji)(ji)(ji)(ji)，褐(he)飛虱9級(ji)(ji)(ji)(ji)，中感(gan)(gan)(gan)稻(dao)(dao)瘟(wen)(wen)病，中感(gan)(gan)(gan)白(bai)葉枯病，高(gao)(gao)感(gan)(gan)(gan)褐(he)飛虱。米(mi)(mi)質(zhi)(zhi)主(zhu)要指(zhi)標(biao)：糙(cao)米(mi)(mi)率(lv)(lv)(lv)80.9%，整精米(mi)(mi)率(lv)(lv)(lv)65.7%，粒(li)(li)長(chang)(chang)7.4毫(hao)米(mi)(mi)，長(chang)(chang)寬比(bi)3.2，堊白(bai)度(du)0.8%，透明度(du)1級(ji)(ji)(ji)(ji)，堿(jian)消值(zhi)6.9級(ji)(ji)(ji)(ji)，膠(jiao)稠度(du)76毫(hao)米(mi)(mi)，直鏈(lian)淀(dian)粉含量(liang)19.8%，達(da)到農(nong)業(ye)行(xing)業(ye)《食用稻(dao)(dao)品(pin)(pin)(pin)種(zhong)(zhong)品(pin)(pin)(pin)質(zhi)(zhi)》（NY/T593）標(biao)準(zhun)二級(ji)(ji)(ji)(ji)。在(zai)長(chang)(chang)江(jiang)中下(xia)游作(zuo)單季晚稻(dao)(dao)種(zhong)(zhong)植，全生(sheng)育期147.2天，比(bi)對(dui)照(zhao)嘉優5號早熟1.4天。株高(gao)(gao)123.9厘米(mi)(mi)，穗(sui)(sui)(sui)長(chang)(chang)23.3厘米(mi)(mi)，每(mei)畝有(you)效穗(sui)(sui)(sui)數17.4萬穗(sui)(sui)(sui)，每(mei)穗(sui)(sui)(sui)總粒(li)(li)數217.3粒(li)(li)，結實(shi)率(lv)(lv)(lv)79.5%，千粒(li)(li)重27.2克。抗性：稻(dao)(dao)瘟(wen)(wen)病綜(zong)合(he)(he)指(zhi)數兩年分別為2.9、4.6，穗(sui)(sui)(sui)頸(jing)瘟(wen)(wen)損(sun)失率(lv)(lv)(lv)最高(gao)(gao)級(ji)(ji)(ji)(ji)5級(ji)(ji)(ji)(ji)，白(bai)葉枯病5級(ji)(ji)(ji)(ji)，條紋葉枯病5級(ji)(ji)(ji)(ji)，褐(he)飛虱9級(ji)(ji)(ji)(ji)，中感(gan)(gan)(gan)稻(dao)(dao)瘟(wen)(wen)病，中感(gan)(gan)(gan)白(bai)葉枯病，中感(gan)(gan)(gan)條紋葉枯病，高(gao)(gao)感(gan)(gan)(gan)褐(he)飛虱。米(mi)(mi)質(zhi)(zhi)主(zhu)要指(zhi)標(biao)：糙(cao)米(mi)(mi)率(lv)(lv)(lv)81.6%，整精米(mi)(mi)率(lv)(lv)(lv)67.0%，粒(li)(li)長(chang)(chang)7.0毫(hao)米(mi)(mi)，長(chang)(chang)寬比(bi)3.0，堊白(bai)度(du)1.3%，透明度(du)1級(ji)(ji)(ji)(ji)，堿(jian)消值(zhi)6.8級(ji)(ji)(ji)(ji)，膠(jiao)稠度(du)81毫(hao)米(mi)(mi)，直鏈(lian)淀(dian)粉含量(liang)17.1%，達(da)到農(nong)業(ye)行(xing)業(ye)《食用稻(dao)(dao)品(pin)(pin)(pin)種(zhong)(zhong)品(pin)(pin)(pin)質(zhi)(zhi)》（NY/T593）標(biao)準(zhun)三級(ji)(ji)(ji)(ji)。

      產量表現：2021年(nian)(nian)(nian)參(can)加(jia)(jia)長(chang)江中(zhong)下游(you)(you)中(zhong)秈遲熟組(zu)(zu)聯合體區域(yu)試(shi)(shi)驗(yan)，平(ping)(ping)均(jun)畝(mu)產(chan)(chan)650.9千(qian)克(ke)(ke)(ke)，比(bi)對(dui)照(zhao)(zhao)增產(chan)(chan)4.3%；2022年(nian)(nian)(nian)續(xu)試(shi)(shi)，平(ping)(ping)均(jun)畝(mu)產(chan)(chan)602.3千(qian)克(ke)(ke)(ke)，比(bi)對(dui)照(zhao)(zhao)減產(chan)(chan)1.4%；兩(liang)年(nian)(nian)(nian)區域(yu)試(shi)(shi)驗(yan)平(ping)(ping)均(jun)畝(mu)產(chan)(chan)626.6千(qian)克(ke)(ke)(ke)，比(bi)對(dui)照(zhao)(zhao)增產(chan)(chan)1.5%；2022年(nian)(nian)(nian)生產(chan)(chan)試(shi)(shi)驗(yan)，平(ping)(ping)均(jun)畝(mu)產(chan)(chan)665.9千(qian)克(ke)(ke)(ke)，比(bi)對(dui)照(zhao)(zhao)增產(chan)(chan)5.3%。2021年(nian)(nian)(nian)參(can)加(jia)(jia)長(chang)江中(zhong)下游(you)(you)單季(ji)晚粳組(zu)(zu)區域(yu)試(shi)(shi)驗(yan)，平(ping)(ping)均(jun)畝(mu)產(chan)(chan)697.9千(qian)克(ke)(ke)(ke)，比(bi)對(dui)照(zhao)(zhao)增產(chan)(chan)9.2%；2022年(nian)(nian)(nian)續(xu)試(shi)(shi)，平(ping)(ping)均(jun)畝(mu)產(chan)(chan)749.6千(qian)克(ke)(ke)(ke)，比(bi)對(dui)照(zhao)(zhao)增產(chan)(chan)22.9%；兩(liang)年(nian)(nian)(nian)區域(yu)試(shi)(shi)驗(yan)平(ping)(ping)均(jun)畝(mu)產(chan)(chan)723.7千(qian)克(ke)(ke)(ke)，比(bi)對(dui)照(zhao)(zhao)增產(chan)(chan)16.2%；2022年(nian)(nian)(nian)生產(chan)(chan)試(shi)(shi)驗(yan)，平(ping)(ping)均(jun)畝(mu)產(chan)(chan)689.0千(qian)克(ke)(ke)(ke)，比(bi)對(dui)照(zhao)(zhao)增產(chan)(chan)21.8%。

      栽培技術要點：在(zai)長江中(zhong)(zhong)下游作一季中(zhong)(zhong)稻(dao)(dao)種(zhong)(zhong)(zhong)植，一般4月(yue)(yue)中(zhong)(zhong)下旬(xun)—5月(yue)(yue)上(shang)中(zhong)(zhong)旬(xun)播(bo)種(zhong)(zhong)(zhong)，秧(yang)田(tian)(tian)播(bo)種(zhong)(zhong)(zhong)量(liang)(liang)每(mei)畝10—12千(qian)克，大(da)田(tian)(tian)畝用種(zhong)(zhong)(zhong)量(liang)(liang)0.8—1.0千(qian)克。水(shui)(shui)育秧(yang)移栽(zai)葉(xie)齡(ling)(ling)4.0葉(xie)左右，秧(yang)齡(ling)(ling)控(kong)制在(zai)30天以內。栽(zai)插(cha)株(zhu)行距(ju)16.7厘(li)米(mi)(mi)×26.6厘(li)米(mi)(mi)，每(mei)畝插(cha)足基(ji)本苗8萬以上(shang)。科學施肥(fei)(fei)，嚴控(kong)后期氮(dan)肥(fei)(fei)施量(liang)(liang)，忌過早斷水(shui)(shui)，防(fang)早衰，減輕病(bing)蟲(chong)害(hai)。其(qi)他(ta)田(tian)(tian)間管(guan)理(li)、栽(zai)培和(he)(he)收(shou)獲措施均(jun)按(an)該(gai)(gai)類型品種(zhong)(zhong)(zhong)常規方(fang)(fang)法實施。重點防(fang)治紋枯(ku)病(bing)、稻(dao)(dao)瘟病(bing)和(he)(he)螟蟲(chong)、褐飛虱、稻(dao)(dao)縱卷葉(xie)螟等病(bing)蟲(chong)害(hai)。在(zai)長江中(zhong)(zhong)下游作單季晚稻(dao)(dao)種(zhong)(zhong)(zhong)植，一般5月(yue)(yue)中(zhong)(zhong)旬(xun)—6月(yue)(yue)上(shang)旬(xun)播(bo)種(zhong)(zhong)(zhong)，秧(yang)田(tian)(tian)播(bo)種(zhong)(zhong)(zhong)量(liang)(liang)每(mei)畝20—25千(qian)克，大(da)田(tian)(tian)畝用種(zhong)(zhong)(zhong)量(liang)(liang)2.0—3.0千(qian)克。水(shui)(shui)育秧(yang)移栽(zai)葉(xie)齡(ling)(ling)5.0葉(xie)左右，秧(yang)齡(ling)(ling)控(kong)制在(zai)30天以內。栽(zai)插(cha)株(zhu)行距(ju)16.7厘(li)米(mi)(mi)×26.6厘(li)米(mi)(mi)，每(mei)畝插(cha)足基(ji)本苗8萬以上(shang)。科學施肥(fei)(fei)，宜中(zhong)(zhong)高肥(fei)(fei)，氮(dan)磷(lin)鉀配合，強化水(shui)(shui)漿管(guan)理(li)。其(qi)他(ta)田(tian)(tian)間管(guan)理(li)、栽(zai)培和(he)(he)收(shou)獲措施均(jun)按(an)該(gai)(gai)類型品種(zhong)(zhong)(zhong)常規方(fang)(fang)法實施。重點防(fang)治稻(dao)(dao)瘟病(bing)、白葉(xie)枯(ku)病(bing)、稻(dao)(dao)曲病(bing)、稻(dao)(dao)飛虱、螟蟲(chong)等病(bing)蟲(chong)害(hai)。

      審定意見：該(gai)品種符合國家稻品種審定標(biao)準(zhun)，通過審定。適(shi)宜在(zai)湖(hu)北省(sheng)(sheng)(sheng)（武陵(ling)(ling)山區(qu)(qu)(qu)(qu)除外）、湖(hu)南(nan)省(sheng)(sheng)(sheng)（武陵(ling)(ling)山區(qu)(qu)(qu)(qu)除外）、江(jiang)西省(sheng)(sheng)(sheng)、安徽(hui)省(sheng)(sheng)(sheng)、江(jiang)蘇(su)省(sheng)(sheng)(sheng)的長江(jiang)流域稻區(qu)(qu)(qu)(qu)以及浙江(jiang)省(sheng)(sheng)(sheng)中(zhong)稻區(qu)(qu)(qu)(qu)、福建(jian)省(sheng)(sheng)(sheng)北部稻區(qu)(qu)(qu)(qu)、河南(nan)省(sheng)(sheng)(sheng)南(nan)部稻瘟(wen)(wen)病輕(qing)發區(qu)(qu)(qu)(qu)的稻瘟(wen)(wen)病輕(qing)發區(qu)(qu)(qu)(qu)作(zuo)一季(ji)(ji)中(zhong)稻種植。適(shi)宜在(zai)浙江(jiang)省(sheng)(sheng)(sheng)、上海(hai)市、江(jiang)蘇(su)省(sheng)(sheng)(sheng)南(nan)部、安徽(hui)省(sheng)(sheng)(sheng)沿江(jiang)、湖(hu)北省(sheng)(sheng)(sheng)沿江(jiang)的粳稻區(qu)(qu)(qu)(qu)的稻瘟(wen)(wen)病輕(qing)發區(qu)(qu)(qu)(qu)作(zuo)單季(ji)(ji)晚稻種植。