摘要
为了解金属硫酸盐浸种对水稻种子萌发和秧苗吸收Cd等元素的影响,以水稻品种五丰优286为试验材料,选择多种浓度的硫酸亚铁(FeSO_(4))、硫酸锌(ZnSO_(4))和硫酸锰(MnSO_(4))作为浸种剂进行室内催芽和水培试验,测定水稻胚根长、胚芽长、发芽率,以及秧苗中的Cd、Mg、B、P、K含量。结果显示,FeSO_(4)和MnSO_(4)浸种均可提高水稻的发芽率,促进胚根和胚芽生长,且能有效降低秧苗中的Cd含量;而ZnSO_(4)浸种对水稻胚根和胚芽的生长表现出明显的抑制作用,且会增加秧苗中的Cd含量。FeSO_(4)和MnSO_(4)浸种对水稻秧苗Mg、B、P、K的吸收无明显抑制作用,且FeSO_(4)浸种对秧苗B的吸收有促进作用。总的来看,FeSO_(4)和MnSO_(4)浸种具有较好的降低水稻Cd吸收的应用潜力,值得进一步深入研究。
To study the effects of sulfate soaking on seed germination and cadmium(Cd)uptake of rice seedlings,rice variety Wufengyou 286 was selected as the test material,and FeSO_(4),ZnSO_(4),MnSO_(4) solutions with various concentrations were used as seed soaking agents in the sprouting and hydroponic experiment.The radicle length,plumule length,germination rate and contents of Cd,Mg,B,P,K in rice seedlings were determined.It was shown that the seed soaking with FeSO_(4) or MnSO_(4) solution could increase the germination rate of rice,promote the growth of radicle and plumule,and effectively reduce Cd content of rice seedlings.However,the seed soaking with ZnSO_(4) solution inhibited the growth of radicle and plumule,and increased Cd content of rice seedlings.The seed soaking with FeSO_(4) or MnSO_(4)solution had no obvious inhibition on the uptake of Mg,B,P,K,and the seed soaking with FeSO_(4) solution even could promote B uptake of rice seedlings.In general,the seed soaking with FeSO_(4)or MnSO_(4) solution had application potential for reducing Cd uptake of rice,and was worthy for further research.
作者
董爱琴
李建国
杨涛
陈院华
徐昌旭
万辉
彭志平
谢杰
DONG Aiqin;LI Jianguo;YANG Tao;CHEN Yuanhua;XU Changxu;WAN Hui;PENG Zhiping;XIE Jie(Key Laboratory of Crop Ecophysiology and Farming System for the Middle and Lower Reaches of the Yangtze River,Ministry of Agriculture and Rural Affairs, National Engineering and Technology Research Center for Red Soil Improvement, Institute of Soil and Fertilizer & Environmental and Resources, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China;Jinggangshan Institute of Red Soil, Ji'an 343016, China;Nanchang Agricultural Products Quality and Safety Testing Center, Nanchang 330009, China)
出处
《浙江农业学报》
CSCD
北大核心
2021年第12期2213-2223,共11页
Acta Agriculturae Zhejiangensis
基金
江西省重点研发计划(20203BBFL63071)
江西省现代农业科研协同创新专项(JXXTCXBSJJ004,JXXTCX201904)
国家红壤改良工程技术研究中心开放基金(2020NETRCRSI-14)。
关键词
浸种剂
离子通道
发芽率
镉
养分吸收
seed soaking agent
ion channel
germination rate
cadmium
nutrient uptake
