scholarly journals Impact of different tillage on soil physical properties, CO2 emissions and winter oilseed rape yield

2021 ◽  
Vol 28 (2) ◽  
Author(s):  
Aušra Sinkevičienė ◽  
Lina Skinulienė ◽  
Vaida Steponavičienė ◽  
Gabrielė Černiauskaitė ◽  
Karolis Bilkevičius ◽  
...  
Keyword(s):  
Physical Properties ◽  
Co2 Emissions ◽  
Oilseed Rape ◽  
Co2 Concentration ◽  
Soil Physical Properties ◽  
Direct Seeding ◽  
Winter Oilseed Rape ◽  
Winter Rape ◽  
Brassica Napus L ◽  
Long Time

The investigation presents data on winter rape agrocenosis productivity, soil physical properties, and CO2 metabolism intensity using different tillages. The object of the research is the winter rape (Brassica napus L.) crop using different tillages. The aim of the study was to determine and compare the effects of different tillages and direct sowing on winter oilseed rape, soil physical properties and CO2 emissions. Methods of analysis. The studies have been carried out in accordance with established procedures. The methods used to apply the Stationary Single Factor Field Experiment were installed at the Vytautas Magnus University Experimental Station in 1988. The study factor is tillage systems: normal deep pruning at a depth of 23–25 cm in autumn (DP), control; shallow pruning at a depth of 12 to 15 cm in autumn (SP); deep loosening at a depth of 8 to 10 cm in autumn (DL); shallow loosening 13–25 cm (SL); direct seeding with cultivation up to 5 cm (NT). Results. For a long time, direct seeding into the stubble (with cultivation up to 5 cm) increases the resistance of the soil shear. During the whole investigation period, a lower CO2 concentration was observed in shallow loosening and direct seeding fields. Simplified tillages did not have a significant impact on the yields of winter rape.

scholarly journals Improvement of cold tolerance of winter oilseed rape by exogenous amino acids

2018 ◽  
Vol 25 (3) ◽  
Author(s):  
Remigijus Peleckis ◽  
Natalija Burbulis ◽  
Aušra Blinstrubienė
Keyword(s):  
Amino Acids ◽  
Glutamic Acid ◽  
Cold Tolerance ◽  
Oilseed Rape ◽  
Dry Matter ◽  
Winter Oilseed Rape ◽  
Winter Rape ◽  
Brassica Napus L ◽  
Experimental Station ◽  
Neck Diameter

Research was carried out at the Experimental Station of Aleksandras Stulginskis University on Calc(ar)i-Endohypogleyic Luvisol (LVg-n-w-cc) during 2014–2017. The effect of exogenous amino acids on the cold tolerance of the linear cultivar ‘Cult’ of winter oilseed rape (Brassica napus L. spp. oleifera biennis Metzg.) was studied. In autumn the plants were sprayed with L-proline and L-glutamic acid one or two times. The biometric parameters of winter oilseed rape prepared for wintering, the amount of endogenous proline and over-wintering of plants were evaluated. It was determined that exogenous L-proline and L-glutamic acid stimulated the growth of green mass of the winter rape surface, accumulation of dry matter and increase of the root neck diameter in the autumn period. The investigated concentrations of L-proline and L-glutamic acid stimulated a more intensive synthesis of endogenous proline in winter oilseed rape plants during the preparation for wintering. The highest percentage of over-wintering has been determined in the variants where in the autumn plants were sprayed two times with 30 mM l–1 L-proline or 1.5 M l–1 L-glutamic acid.

scholarly journals Effects of Growth Type, Sowing Date, and Sowing Rate on the Canopy Architecture, Protein Yields, and Oil Yields of Winter Oilseed Rape (Brassica napus L.)

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Karolina Ratajczak
Keyword(s):  
Brassica Napus ◽  
Oilseed Rape ◽  
Sowing Date ◽  
Canopy Architecture ◽  
Growth Type ◽  
Winter Oilseed Rape ◽  
Winter Rape ◽  
Brassica Napus L ◽  
Sowing Dates ◽  
Plot Design

A split-split-plot design was used to evaluate the effects of sowing dates and sowing rates on three winter rape cultivars, including ‘PR45D03’, a semi-dwarf hybrid, ‘PR46W31’, a traditional hybrid, and ‘Californium’, an open-pollinated cultivar. August 25 was the optimal sowing date for maximizing protein and oil yields across all three cultivars. Of the cultivars, the traditional hybrid, ‘PR46W31’, produced the highest protein and oil yields on that date. The yields of the semi-dwarf hybrid, ‘PR45D03, were greater than those of the open-pollinated cultivar, ‘Californium’, when these were sown later than the optimal date. Protein and oil yields did not differ significantly among different seeding densities.

Mapping QTL controlling agronomic traits in a doubled haploid population of winter oilseed rape (Brassica napus L.)

2018 ◽  
Vol 97 (5) ◽  
pp. 1389-1406 ◽  
Author(s):  
Farshad Fattahi ◽  
Barat Ali Fakheri ◽  
Mahmood Solouki ◽  
Christian Möllers ◽  
Abbas Rezaizad
Keyword(s):  
Brassica Napus ◽  
Oilseed Rape ◽  
Doubled Haploid ◽  
Agronomic Traits ◽  
Doubled Haploid Population ◽  
Winter Oilseed Rape ◽  
Brassica Napus L ◽  
Mapping Qtl ◽  
Haploid Population

scholarly journals Yield of winter rapes seeds on optimization of individual elements of growing technology

2020 ◽  
Author(s):  
M. Bakhmat ◽  
◽  
I. Sendetskyi ◽  
Keyword(s):  
Oilseed Rape ◽  
Growth Regulator ◽  
Agricultural Research ◽  
Growing Season ◽  
Research Station ◽  
Winter Oilseed Rape ◽  
Winter Rape ◽  
Podzolic Soils ◽  
Carpathian Region ◽  
Winter Rapeseed

The results of researches of influence of ways of application of growth regulator "Vermiyodis" and sowing norms on productivity of winter rape of Cheremosh and hybrid Mercedes are covered. The study was performed during 2017-2020 on sod-podzolic soils of the experimental field of the Carpathian State Agricultural Research Station of the Institute of Agriculture of the Carpathian region of NAAS Taking into account the yield, it was found that the pre-sowing treatment of winter rapeseed Cheremosh with growth regulator "Vermiyodis" at a dose of 5 l / ha on average for 2017-2020 at sowing rates of 0.6 million / ha of similar seeds, the yield was 3.60 t / ha or 0.26 t / ha more than control, for sowing rates 0.8 million / ha of similar seeds - 3.92 t / ha or 0.21 t / ha more than control, for sowing rates 1.0 million / ha of similar seeds - 3.46 t / ha or 0.23 t / ha more than control. With a single spraying of winter oilseed rape plants during the growing season with the growth regulator "Vermiyodis" at a dose of 4 l / ha at sowing rates of 0.6 million / ha of similar seeds, the yield was 3.62 t / ha or 0.28 t / ha more control, with at the sowing rate of 0.8 million / ha of similar seeds, the yield was 3.94 t / ha or 0.33 t / ha more than the control, at the sowing rate of 1.0 million / ha of similar seeds, the yield was 3.48 t / ha or 0.25 t / ha more than control. In the variants where pre-sowing treatment of rapeseed seeds of winter hybrid Mercedes with growth regulator "Vermiyodis" at a dose of 5 l / t and during the growing season was carried out a single spraying of plants with growth regulator "Vermiyodis" at a dose of 4 l / ha at seeding rates of 0.6 million / ha similar seeds yield was 3.73 t / ha or 0.39 t / ha more than control, at sowing rates of 0.8 million / ha of similar seeds - 4.07 t / ha or 0.46 t / ha more than control, at sowing rates of 1.0 million / ha of similar seeds - 3.62 t / ha or 0.39 t / ha more than control. Double spraying of rapeseed plants of the winter hybrid Mercedes during the growing season of plants with the growth regulator "Vermiyodis" at a dose of 4 l / ha at sowing rates of 0.6 million / ha of similar seeds, the yield was 3.82 t / ha or 0.48 t / ha more control, for sowing rates of 0.8 million / ha of similar seeds - 4.15 t / ha or 0.54 t / ha more than control, for sowing rates of 1.0 million / ha of similar seeds - 3.68 t / ha or 0.45 t / ha more than control. In the variants where pre-sowing treatment of Cheremosh winter rape seeds with Vermiyodis growth regulator was carried out at a dose of 5 l / t and during the growing season, plants were sprayed with Vermiyodis growth regulator at a dose of 4 l / ha at sowing rates of 0.6 million / ha of similar seeds. yield was 3.91 t / ha or 0.57 t / ha more than control, for sowing rates of 0.8 million / ha of similar seeds - 4.24 t / ha or 0.63 t / ha more than control, for norms sowing 1.0 million / ha of similar seeds - 3.77 t / ha or 0.50 t / ha more than control.

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