{"title":"印度南部高海拔西高止山脉地区环境和升高的臭氧(O3)对马铃薯基因型(Solanum tuberosum.L)的影响","authors":"V. Suganthy, C. Udayasoorian","doi":"10.21013/JAS.V4.N3.P16","DOIUrl":null,"url":null,"abstract":"Globally, next to CO 2 and Methane, raising levels of tropospheric ozone (O 3 ), acts as a secondary pollutant and green house gas which is a silent threat as well as one of the biggest challenges for the decrease in agricultural production. The diurnal and seasonal variation characteristics of ambient ozone (O 3 ) and its precursor NOx was investigated by their continuous measurements at ISRO-Climate Change Observatory situated in a high altitude Western Ghats location of Ooty. The impact of ambient O 3 on the growth and yield characteristics of various potato genotypes were assessed by the calculated higher ozone exposure indices AOT40 and SUM60 than critical levels by showing “latent injury“ in the form of yield reduction (4.56 - 25.5 %) in potato genotypes. The impact of three elevated O 3 levels (100, 150 and 200 ppb for 4 hd -1 ) on ten potato genotypes was done by fumigation under controlled open–top chamber during its critical stage namely the tuber initiation stage resulted that Kufri Surya proved to be moderately resistant by recording the highest yield.","PeriodicalId":14487,"journal":{"name":"IRA-International Journal of Applied Sciences","volume":"11 4","pages":"530-540"},"PeriodicalIF":0.0000,"publicationDate":"2016-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Ambient and Elevated Ozone (O3) impacts on Potato Genotypes (Solanum tuberosum.L) over a high altitude Western Ghats location in Southern India\",\"authors\":\"V. Suganthy, C. Udayasoorian\",\"doi\":\"10.21013/JAS.V4.N3.P16\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Globally, next to CO 2 and Methane, raising levels of tropospheric ozone (O 3 ), acts as a secondary pollutant and green house gas which is a silent threat as well as one of the biggest challenges for the decrease in agricultural production. The diurnal and seasonal variation characteristics of ambient ozone (O 3 ) and its precursor NOx was investigated by their continuous measurements at ISRO-Climate Change Observatory situated in a high altitude Western Ghats location of Ooty. The impact of ambient O 3 on the growth and yield characteristics of various potato genotypes were assessed by the calculated higher ozone exposure indices AOT40 and SUM60 than critical levels by showing “latent injury“ in the form of yield reduction (4.56 - 25.5 %) in potato genotypes. The impact of three elevated O 3 levels (100, 150 and 200 ppb for 4 hd -1 ) on ten potato genotypes was done by fumigation under controlled open–top chamber during its critical stage namely the tuber initiation stage resulted that Kufri Surya proved to be moderately resistant by recording the highest yield.\",\"PeriodicalId\":14487,\"journal\":{\"name\":\"IRA-International Journal of Applied Sciences\",\"volume\":\"11 4\",\"pages\":\"530-540\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-10-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IRA-International Journal of Applied Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.21013/JAS.V4.N3.P16\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IRA-International Journal of Applied Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21013/JAS.V4.N3.P16","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
摘要
在全球范围内，除二氧化碳和甲烷外，对流层臭氧(o3)水平的上升是一种二次污染物和温室气体，这是一种无声的威胁，也是农业产量下降的最大挑战之一。利用位于印度西部高止山脉的isro气候变化观测站的连续观测数据，研究了大气臭氧(o3)及其前体NOx的日变化特征和季节变化特征。通过计算臭氧暴露指数AOT40和SUM60高于临界水平，评价了环境臭氧对不同基因型马铃薯生长和产量特性的影响，表明环境臭氧对不同基因型马铃薯的“潜在伤害”表现为产量降低(4.56% ~ 25.5%)。在马铃薯的关键阶段，即块茎形成阶段，在受控的开顶室熏蒸下，对10个基因型进行了3个升高的O 3水平(4 hd -1为100、150和200 ppb)的影响，结果证明Kufri Surya具有中等抗性，产量最高。
Ambient and Elevated Ozone (O3) impacts on Potato Genotypes (Solanum tuberosum.L) over a high altitude Western Ghats location in Southern India
Globally, next to CO 2 and Methane, raising levels of tropospheric ozone (O 3 ), acts as a secondary pollutant and green house gas which is a silent threat as well as one of the biggest challenges for the decrease in agricultural production. The diurnal and seasonal variation characteristics of ambient ozone (O 3 ) and its precursor NOx was investigated by their continuous measurements at ISRO-Climate Change Observatory situated in a high altitude Western Ghats location of Ooty. The impact of ambient O 3 on the growth and yield characteristics of various potato genotypes were assessed by the calculated higher ozone exposure indices AOT40 and SUM60 than critical levels by showing “latent injury“ in the form of yield reduction (4.56 - 25.5 %) in potato genotypes. The impact of three elevated O 3 levels (100, 150 and 200 ppb for 4 hd -1 ) on ten potato genotypes was done by fumigation under controlled open–top chamber during its critical stage namely the tuber initiation stage resulted that Kufri Surya proved to be moderately resistant by recording the highest yield.
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