木薯种茎越冬贮藏期间适宜温、湿度分析  

Analysis of suitable temperature and humidity for cassava seed-stem overwintering storage

作　　者：申章佑[1] 林洪鑫[2] 李华丽 周佳[1] 李艳英[1] 周灵芝[1] 劳承英[1] 韦本辉[1] SHEN Zhangyou;LIN Hongxin;LI Huali;ZHOU Jia;LI Yanying;ZHOU Lingzhi;LAO Chengying;WEI Benhui(Cash Crops Research Institute,Guangxi Academy of Agricultural Sciences,Nanning 530007,China;Soil Fertilizer and Resources Environment Institute,Jiangxi Academy of Agricultural Sciences,Nanchang 330200,China;Institute of Agriculture Science of Datian County,Fujian Province,Sanming 366100,China)

机构地区：[1]广西农业科学院经济作物研究所,南宁530007 [2]江西省农业科学院土壤肥料与资源环境研究所,南昌330200 [3]福建省大田县农业科学研究所,福建三明366100

出　　处：《中国农业大学学报》2022年第2期57-65,共9页Journal of China Agricultural University

基　　金：国家现代农业产业技术体系项目(CARS-11);国家自然科学基金(31860347);广西农业科学院稳定资助科研团队(桂农科2021YT056)。

摘　　要：为明确越冬期间贮藏环境的温、湿度条件对木薯种茎生理指标的影响,设置人工气候箱(N_(1))、室内(N_(2))、室外(CK_(1))、岩洞内(YD)、岩洞外(CK_(2))、土洞内(TD)和土洞外(CK_(3))7种贮藏方式,分析越冬期间不同贮藏方式的温、湿度变化对木薯种茎生理指标的影响。结果表明:1)在越冬期间,N_(1)、N_(2)、CK_(1)、YD、CK_(2)、TD和CK_(3)的温度变化分别为0.7、11.0、20.1、1.7、24.6、2.9和20.8℃,相对湿度(RH)度变化分别为8.5%、23.7%、42.0%、0、65.4%、0和45.4%;N_(1)、YD和TD贮藏期间的温度、相对湿度条件相对稳定;2)在越冬期间,木薯种茎的游离脯氨酸、丙二醛、可溶性蛋白和可溶性糖含量均表现出随贮藏时间的延长而增加,增加的速率由高到低为N_(1)>N_(2)>CK_(1);3)越冬贮藏后,贮藏质量从高到低为N_(1)>TD>YD>N_(2)>CK_(1)>CK_(3)>CK_(2),其中N_(1)显著高于其余6个处理,CK_(3)和CK_(2)显著低于其余5个处理。越冬贮藏期间,相对适宜并稳定的温度和湿度条件可以减弱木薯种茎的生理活动,有利于提高木薯种茎的贮藏质量。综上,建议木薯种茎越冬贮藏期间的温度控制在15-18℃,同时将相对湿度保持在85%以上。To study the effect of temperature and humidity conditions of storage environment during overwintering on cassava seed-stem,this study set up seven storage methods including manual climatic box(N_(1)),indoor(N_(2)),outdoor(CK_(1)),inside karst cave(YD),outside karst cave(CK_(2)),inside earth cave(TD),outside earth cave(CK_(3)).The effects of temperature and humidity changes on the physiological changes of cassava seed-stem and storage quality overwinter were investigated.The results indicated that:1)During overwinter storage,the temperature variation of the seven storage methods respectively were 0.7,11.0,20.1,1.7,24.6,2.9,and 20.8 ℃,and the humidity variation were 8.5%,23.7%,42.0%,65.4%,0 and 45.4%.The temperature and humidity conditions were relatively stable for N_(1),YD and TD;2)The contents of proline,malondialdehyde,soluble protein and soluble sugar in cassava seed-stem increased with the prolonging of storage time,the rate of increase was shown as N_(1)>N_(2)>CK_(1);3)After overwinter storage,the order of storage quality was N_(1)>TD>YD>N_(2)>CK_(1)>CK_(3)>CK_(2).N_(1) was significantly higher than the other six treatments,and CK_(3) and CK_(2) were significantly lower than the other five treatments.In conclusion,during overwinter storage,relatively suitable and stable temperature and humidity conditions can weaken the physiological activities of cassava seed-stem,which is beneficial to improve the storage quality.It is suggested that the temperature of cassava seed-stem overwinter storage should be controlled at 15-18 ℃,and the humidity should be kept above 85%.

关 键 词：木薯 种茎 越冬贮藏 温湿度 生理 质量 

分 类 号：S533[农业科学—作物学]