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The tillering pattern in barley varieties: I. Production, survival and contribution to yield by component tillers

Published online by Cambridge University Press:  27 March 2009

R. Q. Cannell
R. Q. Cannell
Affiliation:
School of Agriculture, University of Newcastle upon Tyne
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Summary

Two field experiments have been conducted to investigate the pattern of tillering, ear emergence and survival of the component tillers of three barley varieties, representing old and new varieties. The varieties were grown under contrasting nitrogen fertilizer levels and plant spacings. The results reported are for the variety means and variety x nitrogen and variety x spacing interactions. After the main stem (M) the most frequently occurring tiller was the tiller appearing in the axil of the first true leaf (T2), followed by the coleoptile node tiller (T1) and the tiller in the axil of the second true leaf (T3). The T1 tiller occurred most frequently in the newest variety, Deba Abed, and least in the oldest one, Spratt Archer. Survival rates of the shoots were highest in M, followed by T2, T1 and T3. Higher-order tillers occurred relatively infrequently and had low survival rates. M contributed the largest percentage of the grain yield, followed by T2, T1 and T3. The 13% grain yield advantage of Deba Abed over Spratt Archer was mainly accounted for by the difference in production by the T1 tiller. The results are discussed in. relation to the only other known paper on component tillers in barley.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 72 , Issue 3 , June 1969 , pp. 405 - 422
Copyright
Copyright © Cambridge University Press 1969

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