拔节期喷施纳米锌对水稻产量、品质和籽粒锌含量的影响
Effects of foliar spraying of Zn nanoparticles during the jointing stage on rice yield,quality and grain zinc content
陈振玲 1王锐 1陈洁 1浦佳玲 1杨艳菊 1张洪程 1张海鹏1
作者信息
- 1. 江苏省作物栽培生理重点实验室/农业农村部长江流域稻作技术创新中心/江苏省粮食作物现代产业技术协同创新中心,扬州大学水稻产业工程技术研究院,江苏 扬州 225009
- 折叠
摘要
针对稻米锌含量普遍较低的现状,本研究以南粳 9108 为材料,通过拔节期不同用量(0 kg/hm2、0.2 kg/hm2、0.4 kg/hm2、0.6 kg/hm2、0.8 kg/hm2、1.0 kg/hm2)的纳米锌悬浊液叶面喷施试验,分析喷施纳米锌对水稻产量、品质及籽粒锌含量的影响.结果表明,拔节期喷施高剂量(0.8～1.0 kg/hm2)的纳米锌悬浊液可显著提高水稻每穗粒数、结实率和千粒重;纳米锌施用量为 1.0 kg/hm2时,水稻较不施纳米锌处理(CK)增产 3.9%,效果显著.与CK相比,拔节期喷施0.8～1.0 kg/hm2纳米锌能显著提高稻米糙米率、精米率和整精米率,降低稻米垩白粒率和垩白度.施用纳米锌对稻米食味值、崩解值和回复值等存在正向影响,而对蛋白质含量和直链淀粉含量整体无显著影响.喷施纳米锌能够显著提高水稻籽粒锌含量,促进锌在可食用部位的富集,提高锌的生物利用率.因此,拔节期喷施0.8～1.0 kg/hm2纳米锌悬浊液有利于提高水稻籽粒锌含量,实现水稻优质丰产.
Abstract
In view of the current situation of low zinc content in rice,Nanjing 9108 was used as the material in this study.The effects of nano-zinc suspension on rice yield,quality and grain zinc content were analyzed by foliar spraying exper-iments at jointing stage with different dosages(0 kg/hm2,0.2 kg/hm2,0.4 kg/hm2,0.6 kg/hm2,0.8 kg/hm2,1.0 kg/hm2).The results showed that spraying high dosages(0.8-1.0 kg/hm2)of nano-zinc suspension at jointing stage could significantly increase the number of grains per panicle,seed setting rate and 1 000-grain weight of rice.When the application amount of nano-zinc was 1.0 kg/hm2,the yield of rice increased by 3.9%compared with no nano-zinc treatment(CK),and the effect was significant.Compared with CK,spraying 0.8-1.0 kg/hm2 nano-zinc at jointing stage could significantly increase brown rice rate,milled rice rate and head rice rate,and could reduce chalky grain rate and chalk-iness degree of rice.The application of nano-zinc had positive effects on the taste value,disintegration value and recovery val-ue of rice,but had no significant effect on protein content or amylose content.Spraying nano-zinc can significantly increase the grain zinc content,promote the enrichment of zinc in edible parts,and improve the bioavailability of zinc.Therefore,spraying 0.8-1.0 kg/hm2 nano zinc suspension at jointing stage is beneficial for improving the zinc content in rice grains to a-chieve high quality and high yield of rice.
关键词
纳米锌/水稻产量/稻米品质/叶面喷施/锌生物利用率Key words
zinc nanoparticles/rice yield/rice quality/foliar spraying/zinc bioavailability引用本文复制引用
基金项目
江苏省重点研发计划项目(BE2022338)
江苏现代农业产业技术体系建设项目(JATS2023485)
扬州市"绿扬金凤计划"项目(YZLYJFJH2021YXBS155)
江苏省大学生创新创业训练计划项目(202211117128Y)
出版年
2024
国家科技期刊平台
NSTL
万方数据