摘要
为探究植物生长调节剂对优质粳稻光合特性、产量与品质的影响,以绥粳18、垦稻12和三江6为试验材料,研究剑叶展开期喷施脱落酸(ABA)、6-苄氨基腺嘌呤(6-BA)、己酸二乙氨基乙醇酯(DA-6)、亚精胺(Spd)、3-吲哚丁酸(IBA)、3,5-二硝基水杨酸(SA)、油菜素内酯(BL)、玉米素(ZT)、三十烷醇(TRIA)、茉莉酸甲酯(MeJA)和N6-呋喃甲基腺嘌呤(KT)对水稻产量、品质和光合特性的影响。结果表明:与对照(CK)相比,喷施BL提高了抽穗后水稻干物质积累和茎鞘物质转运能力,增加了每穗粒重、千粒重、结实率和粒叶比,两年平均增产7.61%;喷施6-BA有利于延长抽穗期至蜡熟期绿叶面积持续期,改善抽穗后光合特性,增加每穗粒数、每穗粒重、千粒重和粒叶比,两年平均增产6.40%;而喷施DA-6、ZT、ABA、Spd、IBA、SA和KT的增产效果存在品种和年份间稳定性差异。在品质上,喷施DA-6和ZT提高了精米率和整精米率,改善了稻米外观品质。综上,剑叶展开期喷施BL和6-BA有利于供试品种增产,而喷施DA-6和ZT则更有利于稳产或增产前提下提质。
In order to explore the effects of plant growth regulator on photosynthetic characteristics,yield and quality of high-quality japonica rice,the experimental materials were selected as the Suijing 18,Kendao 12,and Sanjiang 6,and eleven plant growth regulators including abscisic acid(ABA),6-benzylaminoadenine(6-BA),diethyl aminoethyl caproate(DA-6),spermidine(Spd),3-indolebutyric acid(IBA),3,5-dinitrosalicylic acid(SA),brassinolide(BL),zeatin(ZT),triacontanol(TRIA),methyl jasmonate(MeJA),and N6-furan methyl adenine(KT)were sprayed at the flag leaf expansion stage,in order to analyze the effects of plant growth regulator on yield,quality and photosynthetic characteristics of rice.The results showed spraying BL increased dry matter accumulation and stem-sheath matter transport after heading,increased grain weight per panicle,1000-grain weight,seed setting rate,and grain-grass ratio,with an average increase of 7.61%in two years,compared with control(CK).Spraying 6-BA could improve the photosynthetic characteristics after heading,prolong the duration of green leaf area from heading stage to waxy stage,increase the number of grains per panicle,grain weight per panicle,1000-grain weight,and grain-grass ratio,with an average increase of 6.40%in two years.However,the yield increase effect of DA-6,ZT,ABA,Spd,IBA,SA,and KT were different between years and varieties.In terms of quality,spraying DA-6 and ZT increased milled rice rate and head rice rate,and improved rice appearance quality.According to the comprehensive analysis,the application of BL and 6-BA in the development period of sword leaf is suitable for increasing the yield of test varieties,while the application of DA-6 and ZT is more suitable for improving the quality under the premise of stable yield or increasing the yield.
作者
赵黎明
王亚新
蒋文鑫
段绍彪
沈雪峰
郑殿峰
冯乃杰
ZHAO Liming;WANG Yaxin;JIANG Wenxin;DUAN Shaobiao;SHEN Xuefeng;ZHENG Dianfeng;FENG Naijie(College of Coastal Agronomy,Guangdong Ocean University,Zhanjiang 524088,Guangdong,China)
出处
《浙江农业学报》
CSCD
北大核心
2024年第5期1003-1014,共12页
Acta Agriculturae Zhejiangensis
基金
广东海洋大学科研启动经费(060302052010)
湛江市创新创业团队引育领航计划(2020LHJH01)
“十三五”国家重点研发计划(2016YFD0300504)
国家“十二五”科技支撑计划(2012BAD20B0402)。
关键词
植物生长调节剂
优质粳稻
产量
品质
光合特性
plant growth regulator
high-quality japonica rice
yield
quality
photosynthesis characteristic
作者简介
赵黎明(1980-),男,黑龙江海伦人,博士,副研究员,主要从事作物高效生产与智控抗逆研究。E-mail:nxyzlm@gdou.edu.cn;通信作者:冯乃杰,E-mail:DAQINGfnj@163.com。
