摘要
通过在土壤中施加外源无机碘KI和KIO3,研究了西瓜对外源无机碘的吸收和利用。同时,通过对成熟期西瓜主要生长生理指标的调查,研究了土壤中外源碘的施加对西瓜生长的影响。结果表明,西瓜植株可以吸收土壤中的碘,并可以在植株根部、茎部、叶部、果皮和果瓤中积累。西瓜植株不同部位对外源碘的吸收和富集能力存在明显差异,根部>叶部>茎部>果皮>果瓤,这种分布能力在KI处理和KIO3处理上具有相似表现。其中,不同浓度外源碘处理条件下,果瓤中碘含量分别为对照中的3.23～28.94倍。土壤中外源施加无机碘没有影响西瓜植株的正常生长,没有影响西瓜产量和果实品质。
The absorption and utilization of exogenous inorganic iodine in watermelon was studied through fertilizing inorganic iodine in field.Meanwhile,the effect of exogenous iodine on the growth of watermelon was also investigated in this paper.The results indicated that iodine could be absorbed by watermelon plant from root,and accumulated in root,stem,leaves,fruit peel and fruit pulp.The ability of iodine absorption and accumulation had significant differences in different parts of watermelon.The concentration of iodine in watermelon plant ranked as：rootstemleavesfruit peelfruit pulp,and this distribution ability was similar between potassium iodide treatment and potassium iodate treatment.The iodine concentration of fruit pulp was 3.23-28.94 times with different inorganic iodine treatments compared with control treatment.The application of inorganic iodine source in soil had no influence on watermelon normal growth,fruit output and fruit quality.
出处
《中国农学通报》
CSCD
北大核心
2011年第25期205-209,共5页
Chinese Agricultural Science Bulletin
基金
北京市科委科技项目"京产大宗农产品质量安全检测与监测科技支撑工程"(Z09090501040901)
北京市农林科学院科技创新能力建设专项"农产品质量与农田环境基础数据平台建设"(KJCX201103002)
关键词
外源无机碘
西瓜
吸收与利用
exogenous inorganic Iodine
watermelon
absorption and utilization
