Associations between plant density and yield components using different sowing times in wheat (Triticum aestivum L.)

T. Kiss; K. Balla; J. Bányai; O. Veisz; I. Karsai

doi:10.1556/0806.45.2017.069

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Cereal Research Communications

Volume/Issue:: Volume 46: Issue 2

Associations between plant density and yield components using different sowing times in wheat (Triticum aestivum L.)

Authors:

T. Kiss

T. Kiss Hungarian Academy of Sciences, H-2462 Martonvásár, Hungary

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K. Balla

K. Balla Hungarian Academy of Sciences, H-2462 Martonvásár, Hungary

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J. Bányai

J. Bányai Hungarian Academy of Sciences, H-2462 Martonvásár, Hungary

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O. Veisz

O. Veisz Hungarian Academy of Sciences, H-2462 Martonvásár, Hungary

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I. Karsai

I. Karsai Hungarian Academy of Sciences, H-2462 Martonvásár, Hungary

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Pages:: 211–220

Online Publication Date:: Jun 2018

Publication Date:: 01 Jun 2018

Article Category:: Research Article

DOI:: https://doi.org/10.1556/0806.45.2017.069

Keywords:: seeding density; yield components; sowing time experiment; wheat (T. aestivum L.)

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The yield potential of wheat depends not only on genetic × environmental interactions, but also on various agronomic factors such as sowing date or the seed rate used for sowing. The main aim of this work was to determine possible correlations between the effects of different sowing dates and plant densities on the yield components of a collection of 48 wheat genotypes. Two-way analysis of variance on the data revealed that both sowing date and plant density, as main components, only had a minor effect on the yield component patterns. Correlation analysis, however, indicated that the sowing date had a greater effect on the yield components, while plant density was in closer correlation with the heading time (r = 0.90). The patterns determined for individual yield components at two different sowing dates and plant densities showed significant differences for spike length, spike fertility, grain number in the main spike, number of productive tillers, grain number on side tillers, mean grain number and grain weight. Genotypes that carry the winter (recessive) alleles of genes regulating vernalisation processes (VRN-A1, VRN-B1, VRN-D1) and the sensitive (recessive) alleles of the two genes responsible for photoperiod sensitivity (PPD-B1, PPD-D1) may have better tillering and consequently higher grain yield, though this may depend greatly on the year.

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Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company

Print ISSN:: 0133-3720

Online ISSN:: 1788-9170

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Cereal Research Communications
Language	English
Size	A4
Year of Foundation	1973
Volumes per Year	1
Issues per Year	4
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0133-3720 (Print)
ISSN	1788-9170 (Online)