桂辐98-296补种延长宿根蔗年限模式农艺性状及经济效益分析  

Analysis of Agronomionc Traits and Economic Benefits of Model of Increasing Ratoon Sugarcane Years by Replantion with GF296 Seed Cane

作　　者：黄振文 周慧文 黄仕钦 丘立杭 黄景杰 罗含敏 邓智年 梁学优 宋石 游建华 HUANG Zhenwen;ZHOU Huiwen;HUANG Shiqin;QIU Lihang;HUANG Jingjie;LUO Hanmin;DENG Zhinian;LIANG Xueyou;SONG Shi;YOU Jianhua(Baise City Agriculture,Animal Husbandry and Fishery Technology Extension Center,Baise,Guangxi,533000,China;Liangqing Town Agricultural Service Center of Liangqing District in Nanning City,Nanning,Guangxi 530201,China;Sugarcane Research Institute,Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement(Guangxi),Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement,Nanning,Guangxi 530007,China;Agriculture and Rural Comprehensive Service Center of Lingnan Town,Heshan City,Laibin,Guangxi 546599,China;Guigang Qintang District Agriculture and Rural Bureau,Guigang,Guangxi 537100,China;Liujiang District Sugarcane Technology Promotion Station,Liuzhou,Guangxi 545100,China)

机构地区：[1]百色市农牧渔技术推广中心,广西百色533000 [2]南宁市良庆区良庆镇农业服务中心,广西南宁530201 [3]广西壮族自治区农业科学院甘蔗研究所/广西甘蔗遗传改良重点实验室/农业农村部广西甘蔗生物技术与遗传改良重点实验室,广西南宁530007 [4]合山市岭南镇农业农村综合服务中心,广西来宾546599 [5]贵港市覃塘区农业农村局,广西贵港537100 [6]柳州市柳江区甘蔗技术推广站,广西柳州545100

出　　处：《农业研究与应用》2023年第6期25-32,共8页Agricultural Research and Application

基　　金：国家糖料产业技术体系项目(CARS-170206);广西农业重点科技计划项目(201524)。

摘　　要：利用桂辐98-296(GF296)甘蔗种茎直接补种桂糖44号的第3年宿根蔗,探究延长宿根2年的可行性,为进一步推广甘蔗种茎直接补种延长宿根年限新技术提供依据。选取完成砍收的桂糖44号(GT44)第2年宿根蔗地块作为试验地,利用桂辐98-296种茎对其缺株断垄蔗畦进行直接补种,调查种茎直接补种延长1年宿根年限(即GT44宿根蔗第3年)的混合群体1 (简称“混1”)[GF296种茎直接补种的新植+GT44延长第1年宿根(简称“宿根1”)]和补种延长2年宿根年限(即GT44宿根蔗第3年)的混合群体2 (简称“混2”)[GF296种茎直接补种后第1年宿根蔗+GT44延长第2年宿根蔗(简称“宿根2”)],以及其对应年份的不补种群体为对照CK1、CK2,调查上述群体的农艺性状指标和经济效益。实验结果表明,补种后第1年混1群体中,GF296出苗率86.25%、成茎率81.43%,达到了生产上的正常水平;GT44宿根1发株率与CK1相当;混1群体的蔗茎产量为87.79 t/hm^(2),比CK1增产22.52 t/hm^(2),增幅达34.50%,差异达极显著水平;混1群体比CK1增收7114.10元/hm^(2),制糖企业增收15950.00元/hm^(2)。混2群体中,GF296宿根蔗的发株率高达226.56%,而GT44宿根蔗2与CK2的发株率分别为68.91%、65.51%,两者也基本处于同一水平;混2群体的蔗茎产量为91.85 t/hm^(2),比CK2增产50.29t/hm^(2),增幅达121.01%,差异亦达极显著水平;混2与CK2经济效益比较,蔗农纯增收20116.00元/hm^(2),制糖企业增效39614.00元/hm^(2)。GF296种茎直接补种GT44宿根蔗,从农艺性状的表现是可行的,能有效延长了2年宿根年限,从经济效益而言是划算的,适宜大面积推广。Guifu 98-296(GF296)seed canes were replanted back to supplement ratoon sugarcane GT44 of the third year to see the possibility of extending ratoon life by 2 years,thus providing a basis for promoting the new technology for extending life of the ratoon sugarcane seed canes by direct replantation with seed cane.The plot of second-year ratoon sugarcane of GT44 after harvesting was selected as the test site.GF296 seed canes were used to directly replant the field lack of sugarcane crops to investigate agronomic trait indexes and economic benefits of Mixed Group 1 for extending 1 year of ratoon sugarcane life(the third year of GT44 ratoon sugarcane)by direct replantation with seed canes[direct replantation of newly planted GF296 seed canes+GT44 ratoon with 1 year extended(Ratoon 1)]and Mixed Group 2 for extending 2 years of ratoon sugarcane life(the third year of GT44 ratoon sugarcane)by replantation with seed canes[ratoon sugarcane of the first year after direct replantation with GF296 seed canes+ratoon sugarcane GT44 with 2 years extended(Ratoon 1)],taking the groups without replantation of the same year as CK1 and CK2.The result showed that:1 year after replantation in Mixed Group 1,germination rate and stem formation rate of GF296 were 86.25%and 81.43%,indicating average level in production;the cane germination rate of GT44 Ratoon 1 was at the same level as that of CK1;the cane yield of Mixed Group 1 was 87.79 t/hm^(2),which was 22.52 t/hm^(2) higher than that of CK1(an increase of 34.50%),indicating a extremely significant difference;Mixed Group 1 increased the income by 7114.10 yuan/hm^(2),lifting the income of sugar producer by 15950.00 yuan/hm^(2).In Mixed Group 2,the cane germination rate of ratoon sugarcane was 226.56%,while the cane germination rates of GT44 Ratoon 2 and CK2 were 68.91%and 65.51%,the two maintained at the same level;the cane yield of Mixed Group 2 was 91.85t/hm^(2),which was 50.29 t/hm^(2) higher than that of CK2,with an increase of 121.01%,also indicating an extremely significant differenc

关 键 词：桂辐98-296 桂糖44号 宿根蔗 延迟宿根年限 

分 类 号：S566.1[农业科学—作物学]