品種名稱：又香優海香

      申請者：廣西兆和種(zhong)業有限公司

      育種者：廣(guang)(guang)西兆(zhao)和種業(ye)有限(xian)公司(si)、廣(guang)(guang)西壯邦種業(ye)有限(xian)公司(si)

      品種來源：又香A×海香

      特征特性：秈(xian)型三系雜交水稻(dao)(dao)品(pin)(pin)種(zhong)。在(zai)長(chang)(chang)江上(shang)游作(zuo)一季(ji)中稻(dao)(dao)種(zhong)植(zhi)，全生育(yu)期(qi)147.7天(tian)(tian)，比(bi)對(dui)照(zhao)F優(you)498早(zao)熟2.8天(tian)(tian)。株高(gao)109.0厘(li)米(mi)(mi)(mi)(mi)，穗(sui)(sui)(sui)(sui)長(chang)(chang)23.8厘(li)米(mi)(mi)(mi)(mi)，每畝(mu)有效(xiao)穗(sui)(sui)(sui)(sui)數16.8萬(wan)穗(sui)(sui)(sui)(sui)，每穗(sui)(sui)(sui)(sui)總粒數208.1粒，結實(shi)(shi)率(lv)(lv)84.8%，千(qian)粒重(zhong)(zhong)(zhong)22.0克。抗(kang)(kang)性(xing)：稻(dao)(dao)瘟病(bing)綜(zong)合指(zhi)數兩年(nian)分(fen)別為(wei)5.9、2.4，穗(sui)(sui)(sui)(sui)頸瘟損失率(lv)(lv)最高(gao)級(ji)(ji)(ji)5級(ji)(ji)(ji)，褐飛虱(shi)(shi)9級(ji)(ji)(ji)，耐熱(re)性(xing)7級(ji)(ji)(ji)，耐冷(leng)性(xing)7級(ji)(ji)(ji)，中感(gan)(gan)稻(dao)(dao)瘟病(bing)，高(gao)感(gan)(gan)褐飛虱(shi)(shi)，耐熱(re)性(xing)較弱，耐冷(leng)性(xing)較弱。米(mi)(mi)(mi)(mi)質主(zhu)要(yao)指(zhi)標(biao)：糙(cao)米(mi)(mi)(mi)(mi)率(lv)(lv)80.0%，整精米(mi)(mi)(mi)(mi)率(lv)(lv)58.1%，粒長(chang)(chang)7.1毫(hao)米(mi)(mi)(mi)(mi)，長(chang)(chang)寬比(bi)4.0，堊(e)白(bai)(bai)度2.0%，透(tou)明度1級(ji)(ji)(ji)，堿(jian)(jian)消值6.1級(ji)(ji)(ji)，膠稠(chou)度73毫(hao)米(mi)(mi)(mi)(mi)，直(zhi)鏈淀粉含(han)量(liang)16.5%，達到(dao)(dao)(dao)農(nong)(nong)業(ye)(ye)(ye)行(xing)業(ye)(ye)(ye)《食(shi)用(yong)稻(dao)(dao)品(pin)(pin)種(zhong)品(pin)(pin)質》（NY/T593）標(biao)準(zhun)二級(ji)(ji)(ji)。在(zai)長(chang)(chang)江中下游作(zuo)雙(shuang)季(ji)晚(wan)稻(dao)(dao)種(zhong)植(zhi)，全生育(yu)期(qi)117.3天(tian)(tian)，比(bi)對(dui)照(zhao)五優(you)308早(zao)熟0.6天(tian)(tian)。株高(gao)112.2厘(li)米(mi)(mi)(mi)(mi)，穗(sui)(sui)(sui)(sui)長(chang)(chang)24.2厘(li)米(mi)(mi)(mi)(mi)，每畝(mu)有效(xiao)穗(sui)(sui)(sui)(sui)數18.2萬(wan)穗(sui)(sui)(sui)(sui)，每穗(sui)(sui)(sui)(sui)總粒數185.0粒，結實(shi)(shi)率(lv)(lv)82.1%，千(qian)粒重(zhong)(zhong)(zhong)22.1克。抗(kang)(kang)性(xing)：稻(dao)(dao)瘟病(bing)綜(zong)合指(zhi)數兩年(nian)分(fen)別為(wei)3.5、4.1，穗(sui)(sui)(sui)(sui)頸瘟損失率(lv)(lv)最高(gao)級(ji)(ji)(ji)5級(ji)(ji)(ji)，白(bai)(bai)葉枯病(bing)7級(ji)(ji)(ji)，褐飛虱(shi)(shi)9級(ji)(ji)(ji)，耐冷(leng)性(xing)3級(ji)(ji)(ji)，中感(gan)(gan)稻(dao)(dao)瘟病(bing)，感(gan)(gan)白(bai)(bai)葉枯病(bing)，高(gao)感(gan)(gan)褐飛虱(shi)(shi)，耐冷(leng)性(xing)較強(qiang)。米(mi)(mi)(mi)(mi)質主(zhu)要(yao)指(zhi)標(biao)：糙(cao)米(mi)(mi)(mi)(mi)率(lv)(lv)80.8%，整精米(mi)(mi)(mi)(mi)率(lv)(lv)63.6%，粒長(chang)(chang)7.1毫(hao)米(mi)(mi)(mi)(mi)，長(chang)(chang)寬比(bi)4.1，堊(e)白(bai)(bai)度2.6%，透(tou)明度2級(ji)(ji)(ji)，堿(jian)(jian)消值6.3級(ji)(ji)(ji)，膠稠(chou)度64毫(hao)米(mi)(mi)(mi)(mi)，直(zhi)鏈淀粉含(han)量(liang)19.1%，達到(dao)(dao)(dao)農(nong)(nong)業(ye)(ye)(ye)行(xing)業(ye)(ye)(ye)《食(shi)用(yong)稻(dao)(dao)品(pin)(pin)種(zhong)品(pin)(pin)質》（NY/T593—2021）標(biao)準(zhun)二級(ji)(ji)(ji)。在(zai)華南稻(dao)(dao)區作(zuo)雙(shuang)季(ji)晚(wan)稻(dao)(dao)種(zhong)植(zhi)，全生育(yu)期(qi)112.6天(tian)(tian)，比(bi)對(dui)照(zhao)吉豐優(you)1002早(zao)熟4.7天(tian)(tian)。株高(gao)106.5厘(li)米(mi)(mi)(mi)(mi)，穗(sui)(sui)(sui)(sui)長(chang)(chang)22.9厘(li)米(mi)(mi)(mi)(mi)，每畝(mu)有效(xiao)穗(sui)(sui)(sui)(sui)數16.2萬(wan)穗(sui)(sui)(sui)(sui)，每穗(sui)(sui)(sui)(sui)總粒數189.8粒，結實(shi)(shi)率(lv)(lv)80.5%，千(qian)粒重(zhong)(zhong)(zhong)20.9克。抗(kang)(kang)性(xing)：稻(dao)(dao)瘟病(bing)綜(zong)合指(zhi)數兩年(nian)分(fen)別為(wei)3.6、4.7，穗(sui)(sui)(sui)(sui)頸瘟損失率(lv)(lv)最高(gao)級(ji)(ji)(ji)5級(ji)(ji)(ji)，白(bai)(bai)葉枯病(bing)9級(ji)(ji)(ji)，褐飛虱(shi)(shi)9級(ji)(ji)(ji)，中感(gan)(gan)稻(dao)(dao)瘟病(bing)，高(gao)感(gan)(gan)白(bai)(bai)葉枯病(bing)，高(gao)感(gan)(gan)褐飛虱(shi)(shi)。米(mi)(mi)(mi)(mi)質主(zhu)要(yao)指(zhi)標(biao)：糙(cao)米(mi)(mi)(mi)(mi)率(lv)(lv)80.1%，整精米(mi)(mi)(mi)(mi)率(lv)(lv)63.7%，粒長(chang)(chang)7.0毫(hao)米(mi)(mi)(mi)(mi)，長(chang)(chang)寬比(bi)3.8，堊(e)白(bai)(bai)度1.5%，透(tou)明度1級(ji)(ji)(ji)，堿(jian)(jian)消值6.6級(ji)(ji)(ji)，膠稠(chou)度60毫(hao)米(mi)(mi)(mi)(mi)，直(zhi)鏈淀粉含(han)量(liang)18.9%，達到(dao)(dao)(dao)農(nong)(nong)業(ye)(ye)(ye)行(xing)業(ye)(ye)(ye)《食(shi)用(yong)稻(dao)(dao)品(pin)(pin)種(zhong)品(pin)(pin)質》（NY/T593—2021）標(biao)準(zhun)二級(ji)(ji)(ji)。

      產量表現：2021年(nian)(nian)(nian)參加(jia)長江上游中秈(xian)遲熟組(zu)(zu)聯(lian)合(he)體(ti)區(qu)域試(shi)(shi)驗(yan)(yan)(yan)，平(ping)(ping)(ping)均(jun)畝(mu)產(chan)(chan)(chan)(chan)(chan)(chan)650.1千克(ke)，比(bi)(bi)(bi)(bi)(bi)對(dui)(dui)(dui)(dui)照(zhao)(zhao)增(zeng)產(chan)(chan)(chan)(chan)(chan)(chan)3.6%；2022年(nian)(nian)(nian)續試(shi)(shi)，平(ping)(ping)(ping)均(jun)畝(mu)產(chan)(chan)(chan)(chan)(chan)(chan)617.9千克(ke)，比(bi)(bi)(bi)(bi)(bi)對(dui)(dui)(dui)(dui)照(zhao)(zhao)增(zeng)產(chan)(chan)(chan)(chan)(chan)(chan)1.4%；兩(liang)年(nian)(nian)(nian)區(qu)域試(shi)(shi)驗(yan)(yan)(yan)平(ping)(ping)(ping)均(jun)畝(mu)產(chan)(chan)(chan)(chan)(chan)(chan)634.0千克(ke)，比(bi)(bi)(bi)(bi)(bi)對(dui)(dui)(dui)(dui)照(zhao)(zhao)增(zeng)產(chan)(chan)(chan)(chan)(chan)(chan)2.5%；2022年(nian)(nian)(nian)生(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)試(shi)(shi)驗(yan)(yan)(yan)，平(ping)(ping)(ping)均(jun)畝(mu)產(chan)(chan)(chan)(chan)(chan)(chan)629.0千克(ke)，比(bi)(bi)(bi)(bi)(bi)對(dui)(dui)(dui)(dui)照(zhao)(zhao)增(zeng)產(chan)(chan)(chan)(chan)(chan)(chan)1.4%。2021年(nian)(nian)(nian)參加(jia)長江中下游晚(wan)秈(xian)早熟組(zu)(zu)聯(lian)合(he)體(ti)區(qu)域試(shi)(shi)驗(yan)(yan)(yan)，平(ping)(ping)(ping)均(jun)畝(mu)產(chan)(chan)(chan)(chan)(chan)(chan)551.7千克(ke)，比(bi)(bi)(bi)(bi)(bi)對(dui)(dui)(dui)(dui)照(zhao)(zhao)增(zeng)產(chan)(chan)(chan)(chan)(chan)(chan)1.5%；2022年(nian)(nian)(nian)續試(shi)(shi)，平(ping)(ping)(ping)均(jun)畝(mu)產(chan)(chan)(chan)(chan)(chan)(chan)563.5千克(ke)，比(bi)(bi)(bi)(bi)(bi)對(dui)(dui)(dui)(dui)照(zhao)(zhao)增(zeng)產(chan)(chan)(chan)(chan)(chan)(chan)1.6%；兩(liang)年(nian)(nian)(nian)區(qu)域試(shi)(shi)驗(yan)(yan)(yan)平(ping)(ping)(ping)均(jun)畝(mu)產(chan)(chan)(chan)(chan)(chan)(chan)557.6千克(ke)，比(bi)(bi)(bi)(bi)(bi)對(dui)(dui)(dui)(dui)照(zhao)(zhao)增(zeng)產(chan)(chan)(chan)(chan)(chan)(chan)1.6%；2022年(nian)(nian)(nian)生(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)試(shi)(shi)驗(yan)(yan)(yan)，平(ping)(ping)(ping)均(jun)畝(mu)產(chan)(chan)(chan)(chan)(chan)(chan)570.6千克(ke)，比(bi)(bi)(bi)(bi)(bi)對(dui)(dui)(dui)(dui)照(zhao)(zhao)增(zeng)產(chan)(chan)(chan)(chan)(chan)(chan)1.2%。2021年(nian)(nian)(nian)參加(jia)華南感光晚(wan)秈(xian)組(zu)(zu)聯(lian)合(he)體(ti)區(qu)域試(shi)(shi)驗(yan)(yan)(yan)，平(ping)(ping)(ping)均(jun)畝(mu)產(chan)(chan)(chan)(chan)(chan)(chan)500.2千克(ke)，比(bi)(bi)(bi)(bi)(bi)對(dui)(dui)(dui)(dui)照(zhao)(zhao)增(zeng)產(chan)(chan)(chan)(chan)(chan)(chan)3.2%；2022年(nian)(nian)(nian)續試(shi)(shi)，平(ping)(ping)(ping)均(jun)畝(mu)產(chan)(chan)(chan)(chan)(chan)(chan)499.9千克(ke)，比(bi)(bi)(bi)(bi)(bi)對(dui)(dui)(dui)(dui)照(zhao)(zhao)增(zeng)產(chan)(chan)(chan)(chan)(chan)(chan)1.1%；兩(liang)年(nian)(nian)(nian)區(qu)域試(shi)(shi)驗(yan)(yan)(yan)平(ping)(ping)(ping)均(jun)畝(mu)產(chan)(chan)(chan)(chan)(chan)(chan)500.0千克(ke)，比(bi)(bi)(bi)(bi)(bi)對(dui)(dui)(dui)(dui)照(zhao)(zhao)增(zeng)產(chan)(chan)(chan)(chan)(chan)(chan)2.1%；2022年(nian)(nian)(nian)生(sheng)產(chan)(chan)(chan)(chan)(chan)(chan)試(shi)(shi)驗(yan)(yan)(yan)，平(ping)(ping)(ping)均(jun)畝(mu)產(chan)(chan)(chan)(chan)(chan)(chan)496.7千克(ke)，比(bi)(bi)(bi)(bi)(bi)對(dui)(dui)(dui)(dui)照(zhao)(zhao)增(zeng)產(chan)(chan)(chan)(chan)(chan)(chan)3.9%。

      栽培技術要點：在長江(jiang)上(shang)(shang)(shang)游作(zuo)(zuo)一(yi)(yi)季(ji)中(zhong)(zhong)稻(dao)種(zhong)(zhong)(zhong)(zhong)植(zhi)，一(yi)(yi)般3月中(zhong)(zhong)旬(xun)—4月中(zhong)(zhong)旬(xun)播(bo)種(zhong)(zhong)(zhong)(zhong)，秧田(tian)(tian)播(bo)種(zhong)(zhong)(zhong)(zhong)量(liang)每(mei)(mei)畝(mu)(mu)10.0千(qian)(qian)克，大(da)田(tian)(tian)畝(mu)(mu)用種(zhong)(zhong)(zhong)(zhong)量(liang)1.0—1.2千(qian)(qian)克。水育秧移栽葉(xie)(xie)齡(ling)5.5葉(xie)(xie)左(zuo)右(you)，秧齡(ling)控制在40天以內。栽插(cha)株行距(ju)18.0厘米(mi)(mi)×23.0厘米(mi)(mi)，每(mei)(mei)畝(mu)(mu)插(cha)足(zu)基(ji)(ji)本苗(miao)7萬(wan)以上(shang)(shang)(shang)。科(ke)學(xue)施(shi)(shi)肥(fei)，重施(shi)(shi)底(di)肥(fei)，早(zao)施(shi)(shi)分(fen)蘗肥(fei)，忌后期偏施(shi)(shi)氮(dan)肥(fei)。其他(ta)田(tian)(tian)間管(guan)理(li)、栽培和(he)收獲措施(shi)(shi)均(jun)(jun)按該類(lei)(lei)型(xing)(xing)品種(zhong)(zhong)(zhong)(zhong)常規方(fang)法實施(shi)(shi)。注(zhu)意防(fang)治(zhi)稻(dao)瘟(wen)病(bing)、稻(dao)曲病(bing)、紋枯(ku)(ku)病(bing)、白(bai)(bai)葉(xie)(xie)枯(ku)(ku)病(bing)、褐飛虱等病(bing)蟲害(hai)。在長江(jiang)中(zhong)(zhong)下(xia)(xia)游作(zuo)(zuo)雙(shuang)季(ji)晚稻(dao)種(zhong)(zhong)(zhong)(zhong)植(zhi)，一(yi)(yi)般6月上(shang)(shang)(shang)旬(xun)—6月中(zhong)(zhong)旬(xun)播(bo)種(zhong)(zhong)(zhong)(zhong)，秧田(tian)(tian)播(bo)種(zhong)(zhong)(zhong)(zhong)量(liang)每(mei)(mei)畝(mu)(mu)10.0千(qian)(qian)克，大(da)田(tian)(tian)畝(mu)(mu)用種(zhong)(zhong)(zhong)(zhong)量(liang)1.0—1.2千(qian)(qian)克。水育秧移栽葉(xie)(xie)齡(ling)4.5葉(xie)(xie)左(zuo)右(you)，秧齡(ling)控制在25天以內。栽插(cha)株行距(ju)20.0厘米(mi)(mi)×23.0厘米(mi)(mi)，每(mei)(mei)畝(mu)(mu)插(cha)足(zu)基(ji)(ji)本苗(miao)7萬(wan)以上(shang)(shang)(shang)。科(ke)學(xue)施(shi)(shi)肥(fei)，早(zao)施(shi)(shi)分(fen)蘗肥(fei)，忌后期偏施(shi)(shi)氮(dan)肥(fei)。其他(ta)田(tian)(tian)間管(guan)理(li)、栽培和(he)收獲措施(shi)(shi)均(jun)(jun)按該類(lei)(lei)型(xing)(xing)品種(zhong)(zhong)(zhong)(zhong)常規方(fang)法實施(shi)(shi)。注(zhu)意及時防(fang)治(zhi)稻(dao)瘟(wen)病(bing)、白(bai)(bai)葉(xie)(xie)枯(ku)(ku)病(bing)、褐飛虱等病(bing)蟲害(hai)。在華(hua)南(nan)稻(dao)區作(zuo)(zuo)雙(shuang)季(ji)晚稻(dao)種(zhong)(zhong)(zhong)(zhong)植(zhi)，一(yi)(yi)般6月下(xia)(xia)旬(xun)7月—上(shang)(shang)(shang)旬(xun)播(bo)種(zhong)(zhong)(zhong)(zhong)，秧田(tian)(tian)播(bo)種(zhong)(zhong)(zhong)(zhong)量(liang)每(mei)(mei)畝(mu)(mu)10.0千(qian)(qian)克，大(da)田(tian)(tian)畝(mu)(mu)用種(zhong)(zhong)(zhong)(zhong)量(liang)1.0—1.2千(qian)(qian)克。水育秧移栽葉(xie)(xie)齡(ling)4.5葉(xie)(xie)左(zuo)右(you)，秧齡(ling)控制在25天以內。栽插(cha)株行距(ju)20.0厘米(mi)(mi)×23.0厘米(mi)(mi)，每(mei)(mei)畝(mu)(mu)插(cha)足(zu)基(ji)(ji)本苗(miao)7萬(wan)以上(shang)(shang)(shang)。科(ke)學(xue)施(shi)(shi)肥(fei)，按需施(shi)(shi)肥(fei)，合理(li)灌溉，干濕交替。其他(ta)田(tian)(tian)間管(guan)理(li)、栽培和(he)收獲措施(shi)(shi)均(jun)(jun)按該類(lei)(lei)型(xing)(xing)品種(zhong)(zhong)(zhong)(zhong)常規方(fang)法實施(shi)(shi)。重點防(fang)治(zhi)稻(dao)瘟(wen)病(bing)、白(bai)(bai)葉(xie)(xie)枯(ku)(ku)病(bing)、稻(dao)飛虱等病(bing)蟲害(hai)。

      審定意見：該(gai)品種(zhong)符合國家稻(dao)品種(zhong)審(shen)定(ding)(ding)標準，通(tong)過審(shen)定(ding)(ding)。適宜在(zai)(zai)四川省(sheng)平壩(ba)丘陵(ling)稻(dao)區(qu)(qu)(qu)(qu)、貴州省(sheng)（武陵(ling)山(shan)區(qu)(qu)(qu)(qu)除(chu)(chu)外）、云南(nan)(nan)(nan)省(sheng)的中(zhong)低海(hai)拔(ba)秈稻(dao)區(qu)(qu)(qu)(qu)、重(zhong)慶市（武陵(ling)山(shan)區(qu)(qu)(qu)(qu)除(chu)(chu)外）海(hai)拔(ba)800米以下地(di)區(qu)(qu)(qu)(qu)、陜西省(sheng)南(nan)(nan)(nan)部(bu)(bu)稻(dao)瘟(wen)病(bing)輕(qing)發(fa)區(qu)(qu)(qu)(qu)的稻(dao)瘟(wen)病(bing)輕(qing)發(fa)區(qu)(qu)(qu)(qu)作(zuo)(zuo)一季中(zhong)稻(dao)種(zhong)植(zhi)。適宜在(zai)(zai)江(jiang)西省(sheng)、湖(hu)南(nan)(nan)(nan)省(sheng)、湖(hu)北(bei)省(sheng)、安徽省(sheng)、浙(zhe)江(jiang)省(sheng)的雙季稻(dao)區(qu)(qu)(qu)(qu)稻(dao)瘟(wen)病(bing)輕(qing)發(fa)區(qu)(qu)(qu)(qu)作(zuo)(zuo)晚(wan)稻(dao)種(zhong)植(zhi)。適宜在(zai)(zai)廣(guang)東省(sheng)（粵北(bei)稻(dao)作(zuo)(zuo)區(qu)(qu)(qu)(qu)除(chu)(chu)外）、廣(guang)西桂南(nan)(nan)(nan)、海(hai)南(nan)(nan)(nan)省(sheng)、福建(jian)省(sheng)南(nan)(nan)(nan)部(bu)(bu)的雙季稻(dao)區(qu)(qu)(qu)(qu)的稻(dao)瘟(wen)病(bing)、白葉(xie)枯病(bing)輕(qing)發(fa)區(qu)(qu)(qu)(qu)作(zuo)(zuo)晚(wan)稻(dao)種(zhong)植(zhi)，白葉(xie)枯病(bing)重(zhong)發(fa)區(qu)(qu)(qu)(qu)不宜種(zhong)植(zhi)。