摘要
通过不同植物生长调节剂浸种试验,探讨其对甘蔗萌芽、整齐度、苗期生长、甘蔗分蘖、产量性状及宿根性的影响,为筛选不同化学药剂对延长甘蔗宿根年限的应用提供技术支撑。以桂选B9为材料,设5个药剂处理,分别为200 mg/L浓度的赤霉素(GA)、细胞分裂素(6-BA)、脱落酸(ABA)、多效唑(PP333)、萘乙酸(NAA)溶液和1个对照CK (清水),浸种24 h后种植;调查新植和第一年宿根农艺性状和经济产量等指标。试验结果表明,在5个药剂处理中,新植蔗ABA和NAA处理的甘蔗出苗受到严重抑制,分蘖率则分别为115.6%和98.0%,明显高于CK的97.5%,而有效茎不足(分别为67 260条/hm~2和70 515条/hm~2),低于CK的73 050条/hm~2,因此产量也比对照略低。而GA和6-BA处理发现出苗率分别为41.2%和19.1%,远低于对照82.6%;分蘖率分别为28.9%和43.1%,同样低于对照的97.5%;说明GA和6-BA抑制了甘蔗的出苗和分蘖,导致甘蔗产量显著低于对照。PP333处理后甘蔗出苗率为90.8%,高于对照的82.6%,而分蘖率92.3%低于对照97.5%,产量上差异也不明显,在新植蔗中各种性状的表现与对照差异不明显;新植甘蔗品质分析发现PP333处理甘蔗糖分最高,但不同激素对甘蔗品质影响不大。在宿根蔗中的发株率、有效茎和茎径均高于对照,产量为111 841.65 kg/hm~2,高于对照的105 435.75 kg/hm~2,说明PP333浸种有利于宿根蔗高产。各处理对甘蔗品质影响不大。PP333浸种处理在新植蔗中能促进甘蔗出苗,在宿根蔗中表现能促进产量增加;PP333浸种处理要优于其他处理,可作为甘蔗浸种剂进一步筛选出最佳使用浓度和使用方法。
The effects of soaking cane setts in various plant growth regulators on germination rate, uniformity,seedling growth, tillering rate, yield and ratooning ability of sugarcane were explored, it is expected to provide technical supports for extending ratoon years by using suitable chemical agent. The cane setts of sugarcane cultivar Guixuan B9 was used as experimental material, which was soaked in 200 mg/L GA, 6-BA, ABA,paclobutrazol(PP333), NAA and clean water(control) for 24 h, and then planted in the experimental field. The results showed that the germination of cane setts treated by ABA and NAA was severely inhibited among the five treatments, the tillering rates were 115.6% and 98.0%, respectively, which were significantly higher than the control(97.5%), while the millable stalks of ABA and NAA were insufficient(67 260 stalks/ha and 70 515 stalks/ha respectively), which is lower than of the control(73 050 stalks/ha), consequently, the yield performed slightly lower than the control. The GA and 6-BA treatments performed much lower emergence rate of 41.2% and 19.1%,respectively, which was much lower the control(82.6%); and performed lower tillering rate of 28.9% and 43.1%,respectively, which was also lower than the control; the inhibition by GA and 6-BA on emergence and tillering were leads to significantly lower cane yield than the control. For the PP333 treatment, the emergence rate was90.8%, performed higher than the control, but the tillering rate was 92.3% and lower than control. As compared with the control, there was no significant difference in cane yield. The sugar content of plant crop was the highest in PP333 treatment, however, there was slightly difference among the treatments by various plant growth regulators for juice quality. However, the germination rate, millable stalks and stem diameter were higher than the control in ratoon crop. The cane yield was 111 841.65 kg/ha for PP333 treatment, which was significantly higher than the control(105 435.75 kg/ha), which indicated the advantage of PP333 treatment on ratoon crops. PP333 soaking treatment promoted emergence rate in plant crop, and cane yield in ratoon crop; it was the best among all the tested cane setts soaking agencies, further test for screening its suitable application rates is needed.
引文
[1]刘新龙,马丽,毛钧,等.甘蔗杂交品种初级核心种质苗期性状与产量性状相关性评价[J].中国糖料,2015,37(5):7-9.
[2]周慧文,范业赓,陈荣发,等.不同代数健康种苗分蘖差异及浸种处理对一代种茎繁育的影响研究[J].中国糖料,2019,41(1):33-36.
[3]吕爱丽,吴才文,刘新龙,等.甘蔗分蘖性状研究进展[J].中国糖料,2016,38(2):60-62.
[4]文颖,刘世杰,吴文涌.甘蔗萌芽的化学调节[J].西南农业学报,1992,5(3):35-41.
[5]张向军,李杨瑞,林炎坤.乙烯利浸种对甘蔗苗期生长及生理生化特性的影响[J].中国糖料,2001,23(3):9-13.
[6]邢永秀,杨丽涛,李杨瑞.乙烯利对不同甘蔗品种光合特性的影响[J].广西农业生物科学,2003,22(2):109-113.
[7]叶燕萍,李杨瑞,罗霆,等.乙烯利浸种对甘蔗抗旱性的影响[J].中国农学通报,2005,21(6):387-309.
[8]李杨瑞,杨丽涛,叶燕萍,等.甘蔗应用乙烯利增产增糖的机理研究[J].西南农业学报,2007,20(1):151-156.
[9]王威豪,叶燕萍,罗永明,等.水分胁迫下乙烯利浸种对甘蔗苗期光合性状和分蘖的影响[J].作物杂志,2008(1):50-54.
[10]王威豪,叶燕萍,李杨瑞.乙烯利浸种对甘蔗根系多胺含量和叶片水势的影响[J].干旱地区农业研究,2008,26(1):200-204.
[11]Singh S P,Singh R P,Tiwari A K.Efficacy of plant growth regulators on yield contributing traits and quality of sugarcane[J].Agrica,2018,7(1):60-65.
[12]Croft B J,Magnanini A,Hogarth D M.Chemical control of sugarcane vertical growth to improve the quality of seed cane[C].Conference of the Australian Society of Sugar Cane Technologists Held at Mackay,2016.
[13]杨林洪.甘蔗高产高糖栽培关键技术探究与分析[C]//.中国作物学会甘蔗专业委员会第15次学术研讨会,2014
[14]Shrivastava A K,Solomon S,Rai R K,Singh P,Chandra A,et al.Physiological Interventions for Enhancing Sugarcane and Sugar Productivity[J].Sugar Tech,2014,17(3):215-226.
[15]刘俊仙,李松,谭芳,等.多效唑浸种对甘蔗分蘖提早萌发及幼苗内源激素含量的影响[J].湖南农业科学,2016(2):22-25.
[16]刘俊仙,李松,谭芳,等.多效唑浸种对甘蔗幼苗分蘖发生及生理特性变化的影响[J].广东农业科学,2016,43(3):38-43.
[17]邓重焘.中国甘蔗品种志[M].广州:广东科技出版社,1991:115-117.
[18]陈文瑞,张武军.脱落酸浸种对水稻秧苗素质的影响[J].四川农业大学学报,2000,18(2):131-133.
[19]周文华,王海云,习桂梅,等.水稻应用脱落酸浸种试验示范初报[J].湖北农业科学,2002,4(1):11-12.
[20]王增盛.晚稻烯效唑浸种效果试验简报[J].上海农业科技,2014(5):52-53.
[21]刘杨,丁艳锋,王强盛,等.植物生长调节剂对水稻分蘖芽生长和内源激素变化的调控效应[J].作物学报,2011,37(2):670-676
[22]吴建明,李杨瑞,王爱勤,等.赤霉素处理对甘蔗节间伸长及产质量的影响[J].中国糖料,2010,32(4):24-26.
[23]梁阗,罗亚伟,黄杏,等.不同浓度赤霉素对甘蔗产量和品质的影响[J].中国糖料,2015,37(2):43-44.
