EFECT OF STRUCTURAL INDICATORS ON THE WINTER RAPE YIELD DEPENDING ON SOWING TIME AND SEEDING RATE IN THE CONDITIONS OF SOUTH STEPPE OF UKRAINE

Authors

  • Y. A. Lavrinenko Institute of Irrigated Agriculture, NAAS , Інститут зрошуваного землеробства НААН
  • A. N. Vlasuk Institute of Irrigated Agriculture, NAAS , Інститут зрошуваного землеробства НААН
  • L. V. Shapar Institute of Irrigated Agriculture, NAAS , Інститут зрошуваного землеробства НААН

DOI:

https://doi.org/10.31548/dopovidi2016.05.014

Keywords:

winter rape, productivity, structural indicators, sowing time, variety, seeding rate

Abstract

The aim of the research  is to determine the effect of  structural indicators on the yield of winter rape under study depending on sowing time and seeding rate.

Research methods:  studies  have been conducted according  to  the requirements  of  generally  accepted research methods. Research  findings.  The highest  yield and  the best  structural indicators  of  winter rape have been obtained when Antaria variety  was sown  in  the  first  decade of  September,   the seeding rate being 1.1million plants  per hectare,   in  the cases  when plant  density  ensured plants  optimal  development.  During  the period of  2013-2015 Antaria variety demonstrated the greatest  yield (2.58  t /ha) when sown  in  the first decade of September, the seeding rate being 1.1 million plants per hectare. Conclusion.   In the Ukrainian southern steppe winter rape seed production depends  directly on the main structural  elements, which  is confirmed by high correlation coefficient .

References

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Published

2016-09-14

Issue

Section

Agronomy