Journal article
Nitrogen deficiency slows leaf development and delays flowering in narrow-leafed lupin
Annals of Botany, Vol.79(4), pp.403-409
1997
Abstract
Effects of nitrogen (N) supply on leaf and flower development in Lupinus angustifolius L. cv Merrit were examined in a temperature-controlled glasshouse. Low N supply (0.05 or 0.4 mM N) had little effect on leaf initiation but slowed leaf emergence on the main stem compared with plants receiving high N supply (6.0 or 6.4 mM N), or with symbiotic N2-fixation. Plants experiencing transient N deficiency had slower leaf emergence than plants with a continuous supply of 6.4 mM N. Nitrogen supply did not affect the time of floral initiation, which occurred within 4 weeks of sowing, by which time nine to ten leaves had emerged. However, the flowering of low-N plants was delayed by 68 to 220 °C d (i.e. 4.14 d) even though they had fewer leaves. The effect of N deficiency on flowering time was largely a result of slower leaf emergence.
Details
- Title
- Nitrogen deficiency slows leaf development and delays flowering in narrow-leafed lupin
- Authors/Creators
- Q. Ma (Author/Creator)N. Longnecker (Author/Creator)M. Dracup (Author/Creator)
- Publication Details
- Annals of Botany, Vol.79(4), pp.403-409
- Publisher
- Oxford University Press
- Identifiers
- 991005542419007891
- Copyright
- © Annals of Botany Company
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.424 Crop Yield Optimization
- Web Of Science research areas
- Plant Sciences
- ESI research areas
- Plant & Animal Science