(1)選育單位:四川(chuan)省農業科學院蠶業研究所
(2)品種來源:以塔桑為母(mu)本,激 7681 為父本雜交,其 F1 桑幼苗通(tong)過秋水仙堿處理,經系統選育而成。
(3)特征特性:該品(pin)種系中(zhong)生(sheng)中(zhong)熟(shu)果、葉(xie)兼用(yong)型(xing)。樹(shu)形(xing)直立,枝(zhi)條粗(cu)長,無側枝(zhi),發(fa)條數(shu)多(duo),長勢強,冬芽(ya)長三角形(xing),稍離生(sheng),較(jiao)大,淺(qian)褐色(se),有副芽(ya),發(fa)芽(ya)率 67.6%;葉(xie)序 2/5,成葉(xie)長橢圓(yuan)形(xing),下垂(chui),無裂葉(xie),葉(xie)尖長尾狀(zhuang),葉(xie)緣(yuan)乳頭齒狀(zhuang),葉(xie)基淺(qian)心形(xing),葉(xie)片淺(qian)綠(lv)色(se),有光澤,微(wei)皺,葉(xie)片較(jiao)大,葉(xie)面、葉(xie)背無毛茸,葉(xie)片薄。雌花,椹(shen)多(duo),成熟(shu)桑椹(shen)為圓(yuan)筒(tong)形(xing)、紫黑色(se)。經農業部食品(pin)質量監督檢驗(yan)測(ce)試(shi)中(zhong)心(成都)測(ce)試(shi):可溶性固(gu)形(xing)物含(han)量(糖度)12.3%,優于對照無核大十的 10.3%。經多(duo)年多(duo)點試(shi)驗(yan)調查,均未發(fa)現桑黑枯(ku)型(xing)細菌病和桑椹(shen)菌核病。
(4)產量表現:①果(guo)桑產(chan)(chan)(chan)量(liang):2007 年(nian)(nian)~2009 年(nian)(nian)多點(dian)試驗,平(ping)均(jun)(jun)畝(mu)(mu)(mu)桑產(chan)(chan)(chan)果(guo)量(liang)為 1202.12公(gong)(gong)斤(jin),比(bi)(bi)對(dui)(dui)照(zhao)(zhao)無(wu)核大十(shi)高 6.47%;生(sheng)產(chan)(chan)(chan)試驗平(ping)均(jun)(jun)畝(mu)(mu)(mu)桑產(chan)(chan)(chan)果(guo)量(liang)為 1123.67 公(gong)(gong)斤(jin),比(bi)(bi)對(dui)(dui)照(zhao)(zhao)無(wu)核大十(shi)高 6.78%。②葉桑產(chan)(chan)(chan)量(liang):春(chun)季(ji)、秋季(ji)和(he)全(quan)年(nian)(nian)平(ping)均(jun)(jun)畝(mu)(mu)(mu)桑產(chan)(chan)(chan)葉量(liang)分別(bie)為 1036.19 公(gong)(gong)斤(jin)、1067.26 公(gong)(gong)斤(jin)和(he) 2103.45 公(gong)(gong)斤(jin),分別(bie)比(bi)(bi)對(dui)(dui)照(zhao)(zhao)湖桑 32 號高 7.23%、21.19%和(he) 13.89%。生(sheng)產(chan)(chan)(chan)試驗全(quan)年(nian)(nian)平(ping)均(jun)(jun)畝(mu)(mu)(mu)桑產(chan)(chan)(chan)葉量(liang) 1742kg,比(bi)(bi)對(dui)(dui)照(zhao)(zhao)湖桑 32 號高 11.26%。經兩年(nian)(nian)四季(ji)養蠶(can)鑒定,4-5齡 50 公(gong)(gong)斤(jin)桑平(ping)均(jun)(jun)產(chan)(chan)(chan)繭量(liang) 3.83 公(gong)(gong)斤(jin),畝(mu)(mu)(mu)桑產(chan)(chan)(chan)繭層(ceng)量(liang) 29.95 公(gong)(gong)斤(jin),分別(bie)比(bi)(bi)對(dui)(dui)照(zhao)(zhao)湖桑 32 號高1.06%和(he) 8.12%,萬頭(tou)繭層(ceng)量(liang) 4.45 公(gong)(gong)斤(jin),比(bi)(bi)對(dui)(dui)照(zhao)(zhao)低 2.42%。
(5)栽培要點: ①栽植(zhi)(zhi)密度(du):一般以(yi)株距(ju) 0.7~0.8 米,行距(ju) 1.5~1.7 米為(wei)宜,畝(mu)栽 500~600 株,栽植(zhi)(zhi)時配置 5-10%的授粉樹以(yi)梅花狀均(jun)勻(yun)栽植(zhi)(zhi)于園中;②樹型養(yang)成(cheng):一般中干樹型養(yang)成(cheng),桑椹收獲后應及時夏伐(fa)(fa),采(cai)用(yong)夏伐(fa)(fa)或間(jian)條輪伐(fa)(fa)式(shi)修剪。7 月份(fen)疏(shu)芽,每株留 8-12 根(gen)新(xin)梢;③肥(fei)(fei)水(shui)管理:發芽前以(yi)復(fu)合(he)肥(fei)(fei)催芽,畝(mu)施(shi) 50 公(gong)斤,4 月上(shang)旬果(guo)(guo)期施(shi)肥(fei)(fei)以(yi)復(fu)合(he)肥(fei)(fei)和(he)鉀肥(fei)(fei)為(wei)主,6 月份(fen)以(yi)氮肥(fei)(fei)為(wei)主,配施(shi)磷、鉀肥(fei)(fei),7 月份(fen)追(zhui)施(shi)復(fu)合(he)肥(fei)(fei)一次(ci)。冬季畝(mu)施(shi)腐熟的土雜糞 1000 公(gong)斤左右,適時灌溉和(he)排澇,果(guo)(guo)實膨大著色至收獲期間(jian)盡量少澆水(shui);④病(bing)蟲害(hai)防治(zhi)(zhi)(zhi):春(chun)天(tian)花蕾初(chu)現(xian)時,用(yong) 70%托布津(jin) 1000 倍(bei)(bei)液和(he) 50%多菌靈(ling) 600~1000倍(bei)(bei)液每次(ci)間(jian)隔 7~10 天(tian),連續防治(zhi)(zhi)(zhi) 4 次(ci),果(guo)(guo)實成(cheng)熟期用(yong) 1000 倍(bei)(bei)樂果(guo)(guo)噴霧防治(zhi)(zhi)(zhi)菌核病(bing)和(he)果(guo)(guo)蠅。
(6)適宜種植地區:四川省蠶區種植











