Studies on the factors influencing inhibition of lateral buds and branches

The roles of light, nitrogen and I.A.A. in particular, have been investigated and evaluated in terms of their relative importance in the outgrowth of lateral buds. Both nitrogen and light are shown to be major factors in tillering of ryegrass and in addition that high nitrogen levels alone induce tillering in an apparently specific manner. This is in contrast to corresponding light treatments where such specific effects did not occur. The dynamics of the protein and non protein nitrogen fractions are discussed relative to the effects of the above two factors on tillering. The inhibitory effects of I.A.A. are demonstrated though the magnitude of these is very small compared with the effects of nitrogen. Results indicate that the I.A.A. inhibition acts through a nutrient diversion mechanism and that purines or purine derivatives particularly, are concerned in the overcoming of such inhibition.

Grantor dc:publisher

Canterbury Agricultural College, University of New Zealand

Year dc:date

1960

Author dc:creator

• Russell, David Warwick

• bud growth
• bud inhibition
• plant metabolism
• nitrogen
• light intensity
• lolium treatments
• tillering
• Indole-3-acetic acid (IAA)
• temperature
• shoot growth
• ANZSRC::070303 Crop and Pasture Biochemistry and Physiology
• ANZSRC::070306 Crop and Pasture Nutrition
• ANZSRC::060705 Plant Physiology

Statement dc:rights

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Licence

• https://researcharchive.lincoln.ac.nz/pages/rights

Language dc:language

en

Identifier

Q112836461

OAI identifier oai:identifier

oai:researcharchive.lincoln.ac.nz:10182/4201