scholarly journals WINTER OILSEED RAPE YIELD DEPENDING ON FOLIAR FERTILIZATION

2020 ◽  
Vol 19 (1) ◽  
pp. 11
Author(s):  
Anna Sikorska ◽  
Marek Gugała ◽  
Krystyna Zarzecka
Keyword(s):  
Amino Acids ◽  
Oilseed Rape ◽  
Seed Yield ◽  
Seed Weight ◽  
Foliar Application ◽  
Climatic Conditions ◽  
Growth Type ◽  
Winter Oilseed Rape ◽  
Foliar Fertilizer ◽  
Thousand Seed Weight

Background. An insufficient amount of nutrients in plants results in the disturbance of basic physiological processes, weakens the growth and development of plants, and consequently contributes to a reduction in yield. The aim of this study was to determine the effect of foliar fertilizers containing sulphur, boron and amino acids on the seed yield of three winter oilseed rape morphotypes (Monolit, PX115, PT248).Material and methods. The study was carried out in 2016-2019 at the Zawady Agricultural Experimental Station (52o03' N; 22o33' E) belonging to the University of Natural Sciences and Humanities in Siedlce, in Poland. The field experiment was established in a split-plot design with three replicates. The studied factors were: I – three winter oilseed rape morphotypes: population (cv. Monolit), restored with the traditional growth type (cv. PT248), and restored with the semi-dwarf growth type (cv. PX115); II – types of foliar feeding: 1. The control variant – without foliar feeding and amino acids applied, 2. biostimulant Aminoplant, 3. foliar fertilizer Siarkomag + foliar fertilizer Bormax, 4. foliar fertilizer Siarkomag + foliar fertilizer Bormax + biostimulant Aminoplant.Results. Foliar fertilizers used in the experiment increased the thousand seed weight (on average in the range from 0.9% to 3.4%), seed yield (on average in the range from 2.5% to 18.5%), straw yield (on average in the range from 2.1% to 5.4%) and the harvest index (on average in the range from 4.4% to 7.5%). Of the compared cultivars the semi-dwarf cultivar (PX115) was characterized by the highest yield, while the lowest was from the population cultivar (Monolit). The highest thousand seed weight, main and secondary yields were obtained in the first year of the study which was characterized by a higher total rainfall during seed development and maturation of pods periods compared to the multi-year period, while the lowest levels of these factors was in the vegetation season of 2017–2018 with a humid autumn season and dry period during the flowering and maturation of pods.Conclusion. The most significant increase in the thousand seed weight and seed yield was obtained after applying mixed fertilizers containing sulphur, boron and amino acids. Additional foliar application of the biostimulant Aminoplant on plots with the population and semi-dwarf cultivars did not significantly increase the seed yield as compared to the control. A significant effect of the genetic factor and climatic conditions on the discussed traits has been demonstrated.

scholarly journals Estimation of heterosis for yield-related traits for single cross and three-way cross hybrids of oilseed rape (Brassica napus L.)

Euphytica ◽  
2019 ◽  
Vol 215 (10) ◽  
Author(s):  
Joanna Wolko ◽  
Agnieszka Dobrzycka ◽  
Jan Bocianowski ◽  
Iwona Bartkowiak-Broda
Keyword(s):  
Brassica Napus ◽  
Oilseed Rape ◽  
Seed Yield ◽  
Seed Weight ◽  
Single Cross ◽  
Positive Heterosis ◽  
Silique Length ◽  
Thousand Seed Weight ◽  
Number Of Seeds ◽  
Number Of Branches

Abstract Rapeseed breeding programs are focused mainly on improving plant potential and seed yield. One of the ways to improve seed yield in oilseed rape is heterosis, which is hybrid vigor that results in a greater biomass, increased seed yield, and faster development. The purpose of this study was to estimate yield-related trait heterosis for single cross and three-way cross hybrids of winter oilseed rape (Brassica napus L.). A population of 60 doubled-haploid (DH) lines and two generations of hybrids were evaluated in field trials to assess six yield-related traits: plant height, number of branches per plant, number of siliques per plant, silique length, number of seeds per silique, and thousand seed weight. Heterosis effects for each trait were estimated by a comparison of the particular hybrid with: (1) the trait mean over both parents—mid-parent heterosis and (2) to the value of better parent—best-parent heterosis. Traits with clear positive heterosis and traits with varied heterosis were observed in this study. For the first group, we include plant height, silique length, and the number of seeds per silique—a large number of hybrids expressed significant positive heterosis for these traits, independent from the year of observations and the type of hybrid. For the second group, with varied heterosis, we can include the number of branches and siliques per plant and thousand seed weight. For these traits, hybrids exhibited both positive and negative significant heterosis, without a clear pattern for the years and types of hybrids.

scholarly journals The Effect of Fertilization with Sulphur, Boron, and Amino Acids on the Content of Glucosinolate in Winter Rape Seeds

Agronomy ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 519 ◽  
Author(s):  
Marek Gugała ◽  
Anna Sikorska ◽  
Krystyna Zarzecka
Keyword(s):  
Amino Acids ◽  
Foliar Application ◽  
Growth Type ◽  
Winter Rape ◽  
Foliar Nutrition ◽  
Foliar Fertilizer ◽  
Glucosinolate Concentration ◽  
Feed Value ◽  
The University ◽  
Plot Design

The study was carried out in 2016–2019 at the Zawady Agricultural Experimental Station (52°03’ N and 22°33’ E) belonging to the University of Natural Sciences and Humanities in Siedlce, in Poland. The field experiment was established in a split-plot design with three replicates. The studied factors were: I. Three winter rape morphotypes: population morphotype (Monolit variety); restored morphotype with traditional growth type (PT248 variety); restored morphotype with a semi-dwarf growth type (PX115 variety); II. Types of foliar nutrition: (1) control variant—sprayed with water, without foliar nutrition and amino acids; (2) biostimulant Aminoplant; (3) foliar fertilizer Siarkomag + foliar fertilizer Bormax; (4) foliar fertilizer Siarkomag + foliar fertilizer Bormax + biostimulant Aminoplant. The aim of the study was to determine the effect of foliar application of sulphur, boron, and amino acids on the content of glucosinolates in seeds of three winter rape morphotypes (Monolit, PX115, and PT248). The foliar feeding applied reduced the feed value of winter rape seeds. On treatments (2, 4), where only amino acids were used or in addition in combination with sulphur and boron, the increase in glucosinolate concentration (GLS) was the largest. Regardless of the type of foliar fertilization used, the Monolit variety contained the lowest concentration of these compounds. The content of glucosinolates in rapeseeds of the studied cultivars varied during the years of the experiment. Studies have shown that the value of this feature increased with the growth of water stress occurring before harvest.

scholarly journals The impact of foliar feeding on the yield components of three winter rape morphotypes (Brassica napus L.)

2020 ◽  
Vol 5 (1) ◽  
pp. 107-116
Author(s):  
Anna Sikorska ◽  
Marek Gugała ◽  
Krystyna Zarzecka
Keyword(s):  
Amino Acids ◽  
Brassica Napus ◽  
Seed Yield ◽  
Growth Type ◽  
Winter Rape ◽  
Foliar Nutrition ◽  
Foliar Fertilization ◽  
Foliar Fertilizer ◽  
The Impact ◽  
Number Of Seeds

AbstractThe aim of the study was to determine the impact of foliar fertilizers containing amino acids, sulphur, boron on the number of productive branches, the number of pods per plant, the number of seeds in pods and the length of pods of three winter rape (Brassica napus) varieties (Monolit, PX115, PT248). The research was carried out in 2016-2017, 2017-2018, 2018-2019 at the Zawady Agricultural Experimental Station (52o03’N and 22o33’E) belonging to the University of Natural Sciences and Humanities in Siedlce, Poland. The field experiment was set up in a split-plot layout in triplicate. The area of one plot for harvest was 21 m2. The examined factors were I - morphotipe of winter rape: population variety (Monolit), hybrid restored with a semi-dwarf growth type (PX115), hybrid restored with a traditional growth type (PT248). II - types of foliar feeding: 1. treatment without biostimulator and foliar feeding, 2. Bioregulator Aminoplant, 3. Foliar fertilizer Siarkomag with foliar fertilizer Bormax, 4. Foliar fertilizer Siarkomag with foliar fertilizer Bormax and Aminoplant. Variable climatic conditions in the years of the experiment affected the studied components of seed yield of three L. morphotypes. In the year 2016-2017 of research, the plants produced the most productive branches, had the longest pods filled with the largest number of seeds. Foliar nutrition with a biostimulator containing amino acids did not significantly affect the increase of the number of productive branches, pods per plant and pod length compared to the variant on which no foliar fertilization was applied. Foliar fertilization with S and B in combination with bio-stimulators was the most effective in increasing the components of seed yield, while the number of productive branches and length of pods under the influence of foliar fertilizers was the same regardless of the application of the biostimulator. The long-stem variety had longer pods that were filled with more seeds than the others.

scholarly journals The response of winter oilseed rape to diverse foliar fertilization

2019 ◽  
Vol 65 (No. 3) ◽  
pp. 125-130 ◽  
Author(s):  
Wacław Jarecki ◽  
Jan Buczek ◽  
Dorota Bobrecka-Jamro
Keyword(s):  
Oilseed Rape ◽  
Plant Density ◽  
Fertilizer Application ◽  
Plant Analysis ◽  
Winter Oilseed Rape ◽  
Area Index ◽  
Foliar Fertilization ◽  
Foliar Fertilizer ◽  
Fat Yield ◽  
Thousand Seed Weight

In this experiment, the response of winter oilseed rape cv. SY Alister F1 to diverse foliar fertilization was evaluated. Foliar fertilization with the preparation Insol 5 was applied at the following dates: control (without a foliar fertilizer); autumn; autumn + spring; autumn + twice spring; spring and twice spring. Each variant in which autumn foliar fertilization was carried out contributed to a significant increase in plant density before harvest. In turn, each variant with spring foliar fertilization significantly increased the number of pods per plant compared to the control. Variants with autumn + spring, autumn + twice-spring, and twice-spring foliar fertilization influenced the increase in the soil-plant analysis development index (SPAD), thousand seed weight and protein and fat yield. The leaf area index was the highest after foliar fertilization applied in autumn + in spring or autumn + twice in spring. Foliar fertilization affected a significant increase in seed yield compared to the control. The content of protein and magnesium in seeds was the highest after the fertilizer application in autumn + twice in spring or twice in spring.

Analysis of post-flowering compensatory growth in winter oilseed rape (Brassica napus)

1992 ◽  
Vol 118 (3) ◽  
pp. 301-308 ◽  
Author(s):  
A. M. Tommey ◽  
E. J. Evans
Keyword(s):  
Brassica Napus ◽  
Oilseed Rape ◽  
Seed Yield ◽  
Lower Order ◽  
Seed Weight ◽  
Compensatory Growth ◽  
Higher Order ◽  
Yield Potential ◽  
Winter Oilseed Rape ◽  
Total Seed

SUMMARYPatterns of assimilate distribution in single plants of winter oilseed rape (Brassica napus L.) cv. Mikado, following a reduction in sink capacity at flowering were investigated in two field experiments during the 1985/86 and 1986/87 growing seasons at Cockle Park Experimental Station, Northumberland. Plants demonstrated considerable compensatory growth following the removal of flowers from the terminal raceme and primary branches.Flower removal from lower branches did not significantly reduce total seed weight. Plants with a pod-bearing terminal raceme and one, two or three productive higher-order branches yielded a similar amount of seed. When seed production was confined to the terminal raceme and first four primary branches, seed yield per plant was greatly increased. Removal of flowers from the terminal raceme and uppermost branches of plants increased the number and productivity of lower-order branches but not enough to offset the overall loss in seed yield potential per plant. Indeed, when flowers were removed from higher-order racemes, the reduction in total seed weight per plant, was directly related to the degree of flower removal. The additional seed yield obtained from individual branches of modified plants in both experiments arose largely through an increase in fertile pod number and seed number per pod. Flower removal treatments did not greatly influence mean seed weight.The results clearly demonstrated that the loss of flowers from lower-order branches could be tolerated and may even be beneficial. Conversely, the removal of flowers from higher-order branches resulted in significant yield reductions. The production of lower branches should be restricted, therefore, in order to increase the superiority of the terminal raceme and uppermost branches and to increase the overall production efficiency of the crop canopy.

scholarly journals Influence of the Semi-dwarf Growth Type on Seed Yield and Agronomic Parameters at Low and High Nitrogen Fertilization in Winter Oilseed Rape

Crop Science ◽  
2016 ◽  
Vol 56 (4) ◽  
pp. 1573-1585 ◽  
Author(s):  
Sebastian Miersch ◽  
Andreas Gertz ◽  
Frank Breuer ◽  
Antje Schierholt ◽  
Heiko C. Becker
Keyword(s):  
Oilseed Rape ◽  
Seed Yield ◽  
Nitrogen Fertilization ◽  
High Nitrogen ◽  
Growth Type ◽  
Winter Oilseed Rape

scholarly journals Genetic variability in oilseed rape DH line population developed from F1 hybrids obtained by crossing black-and yellow-seeded DH lines. I. yield and yield components

Euphytica ◽  
2021 ◽  
Vol 217 (6) ◽  
Author(s):  
Laurencja Szała ◽  
Zygmunt Kaczmarek ◽  
Marek Wójtowicz ◽  
Katarzyna Sosnowska ◽  
Teresa Cegielska-Taras
Keyword(s):  
Oilseed Rape ◽  
Seed Yield ◽  
Seed Weight ◽  
Doubled Haploids ◽  
F1 Hybrids ◽  
Parental Line ◽  
Seed Colour ◽  
Dh Lines ◽  
Thousand Seed Weight ◽  
Number Of Seeds

AbstractThe aims of this study were to estimate the diversity of doubled haploid population of winter oilseed rape (Brassica napus L.) in terms of yield, yield structure and seed colour, to determine the correlation between the studied traits and their heritability, and to select the best yellow-seeded genotypes. We studied 44 doubled haploids, obtained from F1 hybrids of a cross between a black-seeded DH H2-26 line and a yellow-seeded DH Z-114 line, as well as the parental forms. The greatest variation in DH line populations was observed for seed colour, seed yield and the number of pods per plant, while the smallest variability was obtained for thousand seed weight. Seed yield was positively correlated with the number of pods per plant and the number of seeds per pod, but negatively correlated with yellow seed colour. The broad-sense heritability coefficient was highest for seed colour and number of seeds per pod, and lowest for the number of pods per plant. When divided into 4 homogeneous groups according to seed colour, the genotypes differed significantly with respect to all the studied traits. A group of DH lines with black seed colour was characterized by the highest seed yield as well as highest thousand seed weight. The lowest yielding DH line group, that with yellow–brown seeds, had on average the highest number of seeds per pod and the lowest thousand seed weight. The best yellow-seeded genotypes were selected. Four yellow-seeded lines gave significantly higher yields than the yellow-seeded parental line.

Is the flag leaf important in perennial ryegrass seed production?

2010 ◽  
Vol 14 ◽  
pp. 67-73
Author(s):  
J.A.K. Trethewey ◽  
M.P. Rolston
Keyword(s):  
Seed Yield ◽  
Perennial Ryegrass ◽  
Yield Components ◽  
Seed Weight ◽  
Photosynthetic Capacity ◽  
Flag Leaf ◽  
Active Radiation ◽  
Seed Yield Components ◽  
Seed Fill ◽  
Thousand Seed Weight

In cereals, the importance of the flag leaf for contributing carbohydrate during seed fill is well documented. However, in ryegrass this relationship is not so clear. This paper reports on an investigation of the effect on seed yield components of reduced photosynthetic capacity to the flag leaf, stem and head of perennial ryegrass (Lolium perenne). The hypothesis was that reduced photosynthetic capacity of the flag leaf does not affect seed yield components in perennial ryegrass. Following flowering, photosynthetic capacity was reduced by defoliation or shading the flag leaf, stem, or head of individual tillers. Seed yield components were measured at harvest. Reduced photosynthetically active radiation (PAR) to the flag leaf and stem did not affect thousand seed weight or seed yield when compared with control plants whereas reducing PAR to the head had a significant effect. The seed head itself may be more important than the flag leaf during seed fill, but when the seed head is shaded substantial re-mobilisation of stored carbohydrates can occur. Keywords: flag leaf, green leaf area, Lolium perenne, photosynthetically active radiation, seed fill, seed yield, thousand seed weight, water-soluble carbohydrates

scholarly journals Effect of Defoliation and Fe and Mn Spraying on Quality and Quantity Characteristics of Sunflower (Helianthus annuus L.)

2011 ◽  
Vol 3 (3) ◽  
pp. 113-119 ◽  
Author(s):  
Farshid VAZIN ◽  
Mojtaba HASSANZADEHDELOUEI ◽  
Mohamadjavad KHERADMAND
Keyword(s):  
Seed Yield ◽  
Seed Weight ◽  
Foliar Application ◽  
Antagonistic Effect ◽  
Leaf Removal ◽  
Negative Effects ◽  
Combined Use ◽  
Fe And Mn ◽  
Defoliation Treatment ◽  
Severe Leaf

The study was aimed at identifying the amount of reduction in the negative effects of leaf removal on both quality and quantity of sunflower as a result of foliar application of Fe and Mn. Severe leaf removal reduced the seed yield and seed weight to 11% and 10.5% respectively. The use of Fe in comparison to control increased the seed yield and seed weight up to 12% and 10% respectively. The use of Mn in comparison to control caused an increase in seed number up to 11.6% but caused a reduction in seed weight to 10%. The use of Fe in normal foliar defoliation treatment (40% defoliation) caused a significant increase in seed yield but no significant effect was observed in sever defoliation treatment (80% defoliation). Although using Mn in all treatments led to a rise in seed yield, the effect was not significant, it could be concluded that the combined use of Mn and Fe had no significant influence on sunflower yield, so there might be an antagonistic effect between the two.

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