bibo:abstract
  • A full understanding of the interdependence of leaf nitrate (<TEX>$$NO₃^-$$</TEX> ) metabolism and symbiotic nitrogen(N₂) fixation in legume crops is needed to help maximize the use of both N sources as well as to improve forage quality through the inhibition of leaf nitrate accumulation. The present work examines the effects of added nitrate, the level of which are 0,2,4,8 and 12mM, on the nodule formation and leaf nitrate utilization and on the possibility of inducing nitrate-toxicity to livestocks in two alfalfa varieties, "Vernal" of grazing type and "Victoria" of hay type. Higher level of exogeneous nitrate resulted in the increased above-ground dry weight. Nodulation was inhibited severely when more than 8mM <TEX>$$NO₃^-$$</TEX> was supplied to alfalfa plants, and leaf nitrate reductase reached a maximum at 4mM nitrate supply. The <TEX>$$V_{max}$$</TEX> of nitrate reductase in leaves of Vernal was similar to that of Victoria, whereas the <TEX>$$K_m$$</TEX> of Vernal was higher than that of Victoria. High accumulation of leaf nitrate, 4×<TEX>$$10^{-5}$$</TEX> g/g leaf fresh weight, was shown at 12mM nitrate supply, which was thought to be not enough to induce nitrate-toxicity to livestocks. (rdf:langString) (en)
nlon:biographicalNote
  • 이석하, 작물시험장 (xsd:string)
  • 황석중, 축산시험장 (xsd:string)
nlon:classificationNumberOfNLK
  • 524.05 (xsd:string)
nlon:containedIn
dc:creator
  • 이석하 (xsd:string)
  • 황석중 (xsd:string)
dcterms:creator
nlon:datePublished
  • 2021-01-30T23:37:12 (xsd:dateTime)
dcterms:description
  • Response of nodulation and leaf nitrate reductase activity of alfalfa to exogeneous nitrate supply (xsd:string)
bibframe:extent
  • 28 cm (xsd:string)
  • p. 196-200 (xsd:string)
  • 삽도 (xsd:string)
dcterms:isPartOf
nlon:issuedYear
  • 1993 (xsd:string)
nlon:itemNumberOfNLK
  • 한594 (xsd:string)
rdfs:label
  • 窒酸態 窒素 供給이 알팔파의 뿌리혹 形成 및 葉中 nitrate reductase 활성에 미치는 影響 / 李錫河, 黃石重 (xsd:string)
dcterms:language
dc:subject
  • Alfalfa (xsd:string)
  • Exogeneous nitrate supply (xsd:string)
  • Leaf (xsd:string)
  • Nitrate reductase activity (xsd:string)
  • Nitrate reductase 활성 (xsd:string)
  • Nodulation (xsd:string)
  • 뿌리혹 (xsd:string)
  • 알팔파 (xsd:string)
  • 엽중 (xsd:string)
  • 질산태 질소 공급 (xsd:string)
dcterms:title
  • 窒酸態 窒素 供給이 알팔파의 뿌리혹 形成 및 葉中 nitrate reductase 활성에 미치는 影響 (xsd:string)
rdf:type
nlon:volumeOfNLK
  • 38 (xsd:string)