Journal article

Publication year: 1986

Pages: 147-156

Journal: Journal of Plant Nutrition and Soil Science

Volume number: 149

Issue number: 2

ISSN: 0044-3263

DOI Link: https://doi.org/10.1002/jpln.19861490202

Publisher: Wiley-VCH Verlag

Abstract: 
In two years pot experiments with spring wheat, the effect of different exogenous growth factors (N - supply, growth regulators, thermoperiod) on ear development in monoculm plants was studied. All three growth factors brought about a comparable change in the internal dominance structure of the ear. Medial-dominance within the ear was diminished by both increased N supply and growth regulators whereas it was augmented by raised temperture during organogenesis of the ear. The application of growth regulators reduced the number of spikelets per ear, but did not necessarily lead to reduced fertility of the total ear. The influence of the growth regulators with anti-gibberellic effect on dominance structures in the plant is explained by an increase in respiration which improves attraction of assimilates into the ear.

Harvard Citation style: EICHENAUER, J., NATT, C. and HOFNER, W. (1986) VARIABILITY OF THE YIELD STRUCTURE OF SPRING WHEAT EARS CAUSED BY NITROGEN - SUPPLY, THERMOPERIOD AND GROWTH-REGULATORS, Journal of Plant Nutrition and Soil Science = Zeitschrift für Pflanzenernährung und Bodenkunde, 149(2), pp. 147-156. https://doi.org/10.1002/jpln.19861490202

APA Citation style: EICHENAUER, J., NATT, C., & HOFNER, W. (1986). VARIABILITY OF THE YIELD STRUCTURE OF SPRING WHEAT EARS CAUSED BY NITROGEN - SUPPLY, THERMOPERIOD AND GROWTH-REGULATORS. Journal of Plant Nutrition and Soil Science = Zeitschrift für Pflanzenernährung und Bodenkunde. 149(2), 147-156. https://doi.org/10.1002/jpln.19861490202