Formation of spring rape yield depending on fractional composition of seed material

Authors

DOI:

https://doi.org/10.21498/2518-1017.3(32).2016.75988

Keywords:

spring rape, fraction, quality, density, leaf surface area, photosynthetic productivity

Abstract

Purpose. To study the influence of fractional composition of seed material on productive properties of spring rape seeds of the ‘Magnat’ variety and ‘MVM’ (‘Gladiator’) variety sample.

Methods. Field investigations, laboratory tests, statistical analysis.

Results. During 2013–2014, the influence of sown seeds of different size fractions (up to 2,5 g; 2,6–3,5 g; 3,6 g and more) on the indices of productivity of spring rape varie­ties was studied. It was found that over the years of study field germination of sown fractions of seeds in ‘Magnat’ variety averaged 83.5%, in ‘MSM’ variety sample – 86.7%. During the periods of seedling emergence and harvesting, the density of spring rape crops varied depending on relevant fraction of sown seeds. In the ‘Magnat’ variety, photosynthetic potential of crops ranged from 1.1 to 1.3 million m2/ha, in ‘MSM’ variety sample – from 1.2 to 1.6 million m2/ha. Depending on the seed fractions applied, ‘Magnat’ variety crops during the gro­wing season accumulated organic biomass from 2.05 to 2.36 g/m2

per day, ‘MSM’ sample variety – from 1.83 to 2.10 g/m2 per day.

Conclusions. It was established that different fractions of spring rape seeds sown in the Northern Forest-Steppe zone of Ukraine affected the indices of germinating energy and laboratory germination, crop density formation, leaf surface area and intensity of photosynthesis process (crop photosynthetic potential, net photosynthesis performance). The highest indices of productivity and yield in the ‘Magnat’ variety was ensured by large-seeded fraction (3,6 g and more), in the ‘MVM’ (‘Gladia­tor’) sample variety – by small-seeded fraction (up to 2,5 g).

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Author Biographies

П. С. Вишнівський, NSC “Institute of Agriculture NAAS”

Vyshnivskyi, P. S.

І. М. Катеринчук, NSC “Institute of Agriculture NAAS”

Katerynchuk, I. N.

References

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Published

2016-07-28

How to Cite

Вишнівський, П. С., & Катеринчук, І. М. (2016). Formation of spring rape yield depending on fractional composition of seed material. Plant Varieties Studying and Protection, (3(32), 73–77. https://doi.org/10.21498/2518-1017.3(32).2016.75988

Issue

No. 3(32) (2016)

Section

PLANT PRODUCTION

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