The role of potassium in drought tolerance uri icon


  • Water stress effect9 are severe in semi.arid enr!rgrqen:s vrhere drought5 areunpred~ctablea nd cause ins:ab,lin, in 'produclmn Eltons are be~ngm ade :c ,mprovedrought tolerance by plant breeding but 11 will be some rime before a wl.ution is found.Studies of the role of potassium in water uptake and the regulation of 11s lossthrough stomata1 control In controlled e&pertmenls and f~sldo tud~eso f veldresponse to potassium in limiting soil water e~viroirrentsin dicate that it rayimprove water relationsof plants and water use etfic~encya nd maintain y~eldsu n.der water strw. Funher study is needed of the effects of potassium in relation todrought in field experiments under diverse agroclimatic conditions on roils de.ficirnt and suffic~enti n potassium. Attention should be paid to the econorrics olpotassium reyMnse under drought conditions

publication date

  • 1985