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Titolo:
Combination effect of NaCl salinity and nitrogen form on mineral composition of sunflower plants
Autore:
Ashraf, M; Sultana, R;
Indirizzi:
Bahauddin Zakariya Univ, Inst Pure & Appl Biol, Multan 60800, Pakistan Bahauddin Zakariya Univ Multan Pakistan 60800 ol, Multan 60800, Pakistan
Titolo Testata:
BIOLOGIA PLANTARUM
fascicolo: 4, volume: 43, anno: 2000,
pagine: 615 - 619
SICI:
0006-3134(2000)43:4<615:CEONSA>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
AMMONIUM NUTRITION; NITRATE UPTAKE; ROOT MORPHOLOGY; GROWTH; BARLEY; MAIZE; ASSIMILATION; TOMATO; CORN;
Keywords:
ammonium; Helianthus annuus; mineral nutrients; nitrate; salt stress; sunflower;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Ashraf, M 51-C Sheikh Colony,ABC Rd,Behind Jallal Masjid, Faisalabad, Pakistan 51-C Sheikh Colony,ABC Rd,Behind Jallal Masjid Faisalabad Pakistan
Citazione:
M. Ashraf e R. Sultana, "Combination effect of NaCl salinity and nitrogen form on mineral composition of sunflower plants", BIOL PLANT, 43(4), 2000, pp. 615-619

Abstract

The effect of two N-forms (NH4+ and NO3-) and NaCl on pattern of accumulation of some essential inorganic nutrients was examined in sunflower (Helianthus annuus L.) cv. Hisun 33. Eight-day-old plants of were subjected for 21d to Hoagland's nutrient solution containing 8 mM N as NH4+ or NO3-, and salinized with 0, 60, or 120 mM NaCl. N-form and addition of NaCl to the growth medium had no significant effect on total, leaf N. However, root N of NH4-supplied plants decreased significantly with increase in NaCl concentration, whereas that of NO3-supplied plants remained unaffected. There was no significant effect of NaCl on leaf or root P, but the NO3-supplied plants had significantly lower concentration of leaf P than that of NH4-supplied plants at varying salt treatments. Salinity of the rooting medium also did not show any significant effect on Na+ concentrations of leaves or roots of plants subjected to two different forms of N. NH4-treated plants generally had greater concentrations of Cl- in leaves and roots and lower K+ content in leaves than NO3-supplied plants. Ca2+ concentrations of leaves and roots and Mg2+ concentrations of leaves decreased in NH4-supplied plants due to NaCl, but they remained unaffected in NO3-treated plants.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/06/20 alle ore 00:20:45