Pod shatter resistance in the resynthesized Brassica napus line DK142

2003 ◽  
Vol 140 (1) ◽  
pp. 43-52 ◽  
Author(s):  
J. E. SUMMERS ◽  
D. M. BRUCE ◽  
G. VANCANNEYT ◽  
P. REDIG ◽  
C. P. WERNER ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Dry Matter ◽  
Descriptive Statistics ◽  
Sowing Time ◽  
Commercial Cultivar ◽  
Resynthesized Brassica Napus ◽  
Pod Shatter ◽  
Napus Line ◽  
The Uk

Resistance to pod shatter was studied within and between populations of the resynthesized Brassica napus line DK142, grown under glass or in the field, at sites in the UK and Belgium. All populations showed similar ranges of resistance that were greater than that of a commercial cultivar (Apex). The increase in range was at least three-fold greater than the range found in Apex. Only sowing time affected the descriptive statistics of shatter resistance of each line, with spring-sown populations more shatter susceptible than winter-sown populations. The partitioning of dry matter to individual tissues of the pod was different for the two lines, with dry matter biased to the seed in Apex and to the receptacle in the more resistant DK142. In DK142 and Apex, as well as F1 and F2 populations derived from crosses between DK142×Apex, correlations for pod shatter resistance and mature pod characters were high, particularly the weight and length of the valves and septum. Shatter resistance increased in plants when pod numbers were reduced by the removal of whole racemes.

Identification of two major QTL for yellow seed color in two crosses of resynthesized Brassica napus line No. 2127-17

2010 ◽  
Vol 28 (3) ◽  
pp. 335-342 ◽  
Author(s):  
Yan Zhang ◽  
Xia Li ◽  
Wei Chen ◽  
Bin Yi ◽  
Jing Wen ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Seed Color ◽  
Yellow Seed ◽  
Resynthesized Brassica Napus ◽  
Napus Line ◽  
Major Qtl

scholarly journals Survey of young people in one region of the UK on accessing COVID-19 information (SOCIAL)

2021 ◽  
Vol 5 (1) ◽  
pp. e000942
Author(s):  
Oliver G P Lawton ◽  
Sarah A Lawton ◽  
Lisa Dikomitis ◽  
Joanne Protheroe ◽  
Joanne Smith ◽  
...  
Keyword(s):  
Social Media ◽  
Young People ◽  
Significant Role ◽  
Online Survey ◽  
Descriptive Statistics ◽  
Sources Of Information ◽  
Cross Sectional Survey ◽  
Cross Sectional ◽  
Education Gaps ◽  
The Uk

COVID-19 has significantly impacted young people’s lives yet little is known about the COVID-19 related sources of information they access. We performed a cross-sectional survey of pupils (11–16 years) in North Staffordshire, UK. 408 (23%) pupils responded to an online survey emailed to them by their school. Descriptive statistics were used to summarise the data. Social media, accessed by 68%, played a significant role in the provision of information, despite it not being considered trustworthy. 89% felt that COVID-19 had negatively affected their education. Gaps in the provision of information on COVID-19 have been identified.

‘Pod shatter’ in Arabidopsis thaliana Brassica napus and B. juncea

1996 ◽  
Vol 181 (2) ◽  
pp. 195-203 ◽  
Author(s):  
J. SPENCE ◽  
Y. VERCHER ◽  
P. GATES ◽  
N. HARRIS
Keyword(s):  
Arabidopsis Thaliana ◽  
Brassica Napus ◽  
Pod Shatter

scholarly journals Genotypic resistance to brown heart incidence in swede parent lines and F1 hybrids and the influence of applied boron

2013 ◽  
Vol 153 (2) ◽  
pp. 195-204 ◽  
Author(s):  
F. FADHEL ◽  
A. J. JELLINGS ◽  
S. KENNEDY ◽  
M. P. FULLER
Keyword(s):  
Brassica Napus ◽  
Single Gene ◽  
Dry Weight ◽  
Significant Negative Correlation ◽  
F1 Hybrids ◽  
Dominant Trait ◽  
Genotypic Resistance ◽  
Resistant Varieties ◽  
Effect Of Treatment ◽  
The Uk

SUMMARYBreeding trials for swede (Brassica napus var. napobrassica) in 2000–2010 showed that 0·85 of the incidence of brown heart (BH) in the trials was associated with genotypes that are progeny of Ag31, Or13 and Me77c. In order to investigate this and the effect of treatment with boron (B), established varieties and improved parent lines carrying male sterility (ms), and their F1 hybrids (test hybrids), were grown in a field trial in the UK in 2011 and subjected to four B treatments (0·00, 1·35, 1·80 and 2·70 kg B/ha). The results confirmed that BH incidence and severity was affected by genotype but could be ameliorated by B application. Genotype Ag31 was very susceptible while Or13 and Me77c were of intermediate susceptibility and the hybrids between susceptible parents were also sensitive. Genotypes Gr19 and Ly01 were highly resistant even in the absence of B application. Hybrids between resistant and susceptible lines were highly resistant. The use of ms had no influence on BH. Resistance to BH was a dominant trait: homozygous dominant (BHBH) or heterozygous (BHbh) genotypes confer this trait, while susceptibility is recessive (bhbh). Some quantitative variation existed, suggesting that resistance was not a single gene effect. There was a significant negative correlation (r=−0·632) between root B content and the severity of BH in susceptible genotypes. Severe BH was associated with 12–21·5 μg B/g of root dry weight at zero B applied. Moderate discolouration was associated with 19·5–24·8 μg B/g recorded at moderate B applied and only Ag31 showed BH at 2·70 kg B/ha. Resistant varieties had root contents of 23 μg B/g or more while susceptible varieties required a minimum of 31 μg B/g to offset BH.

scholarly journals Effect of sowing time on growth and yield attributes of three mustard cultivars grown in Tidal Floodplain of Bangladesh

2017 ◽  
Vol 14 (2) ◽  
pp. 155-160
Author(s):  
MAR Sharif ◽  
MZ Haque ◽  
MHK Howlader ◽  
MJ Hossain
Keyword(s):  
Grain Yield ◽  
Leaf Area Index ◽  
Dry Matter ◽  
Growth And Yield ◽  
Index Number ◽  
Sowing Time ◽  
Area Index ◽  
Yield Attributes ◽  
Sowing Dates ◽  
1000 Grain Weight

The experiment was conducted at the field laboratory of the Patuakhali Science and Technology University, Patuakhali, Bangladesh during the period from November, 2011 to March 2012 under the tidal Floodplain region to find out optimum sowing time for the selected three cultivars (BARI Sharisha-15, BINA Sharisha-5 and BARI Sharisha-9). There were four sowing dates viz. 30 November, 15 December, 30 December and 15 January. Significant variations due to different sowing dates were observed in plant height, total dry matter, leaf area index, number of siliqua plant-1, seeds silique-1, 1000-grain weight, grain yield and HI. Results showed that the highest grain yield (1.73 t ha-1) was obtained from the first sowing (30 November) with BINA Sharisha-5 and it was significantly different from the yields of all other combination.J. Bangladesh Agril. Univ. 14(2): 155-160, December 2016

scholarly journals EFFECTS OF SPATIAL VARIABILITY OF SOIL CHEMICAL PARAMETERS ON TIFTON 85 GRASS YIELD1

2020 ◽  
Vol 33 (1) ◽  
pp. 236-245
Author(s):  
EUDOCIO RAFAEL OTAVIO DA SILVA ◽  
MURILO MACHADO DE BARROS ◽  
MARCOS GERVASIO PEREIRA ◽  
JOÃO HENRIQUE GAIA GOMES ◽  
STEPHANY DA COSTA SOARES
Keyword(s):  
Decision Making ◽  
Spatial Variability ◽  
Dry Matter ◽  
Irregular Sampling ◽  
Descriptive Statistics ◽  
Dry Matter Yield ◽  
Chemical Parameters ◽  
Tropical Pastures ◽  
Chemical Attributes ◽  
Soil Chemical Parameters

ABSTRACT Studies on spatial variability of soil attributes of tropical pastures gather information that can assist in decision making about managements of these soils. The objective of the present study was to evaluate the spatial variability of soil chemical attributes and their effects on grass yield of Tifton 85. The experiment was carried out in an area of 3.91 ha at the Feno Rio Farm of the Federal Rural University of Rio de Janeiro, Seropédica, RJ, Brazil. Soils of the 0-0.20 and 0.20-0.40 m layers were sampled considering an irregular sampling mesh, making a total of 50 georeferenced points. The parameters evaluated were: the soil chemical attributes pH, Al+3, Ca+2, Mg+2, Na+, K+, P, H+Al, and total organic carbon (TOC); and the Tifton 85 dry matter yield (DMY). The results of these parameters were subjected to descriptive statistics, linear correlation, and geostatistics, and maps were developed for the analyses. Regions with grass yields different from the general mean were found in the area, which presented mean grass yield of 2248 kg ha-1. The soil chemical parameters Na+, Ca+2, TOC, and H+Al were significantly correlated with DMY, confirming that they are important and affect the Tifton 85 grass yield. The mapping of the Tifton 85 cycle is important for understanding the variability of DMY. The investigation of areas with different productive potentials should be followed by development of maps of soil chemical attributes to correlate and understand the ratios that may be involved with these variations.

A study to evaluate the provision of psychosocial supervision within an Early Intervention team

2010 ◽  
Vol 3 (2) ◽  
pp. 58-70 ◽  
Author(s):  
Sandra T. Neil ◽  
Sarah Nothard ◽  
David Glentworth ◽  
Elaine Stewart
Keyword(s):  
Early Intervention ◽  
Thematic Analysis ◽  
Psychosocial Interventions ◽  
Descriptive Statistics ◽  
Early Interventions ◽  
Structured Interviews ◽  
Team Members ◽  
Different Types ◽  
Intervention Team ◽  
The Uk

AbstractPsychosocial Interventions (PSIs) and PSI supervision underpin the delivery of early interventions for people experiencing psychosis. Early Intervention (EI) teams are relatively new in the NHS and there is currently a lack of empirical research into PSI supervision in this area. This study aimed to elicit staff views of PSI supervision and to identify any unmet supervision needs within a newly developed EI team in the UK. Semi-structured interviews were conducted with 16 multidisciplinary team members. Descriptive statistics and a thematic analysis were used to analyse the responses. The different types of supervision available to team members, gaps in the provision of PSI supervision and aspects that supervisees found helpful and unhelpful about PSI supervision are discussed as are ideas for improving the provision of PSI supervision in EI teams. The limitations of the study and ideas for further research are also outlined.

Prospects of a hybrid distribution map between GM Brassica napus and wild B. rapa across the UK.

2009 ◽  
pp. 339-349
Author(s):  
M. Wilkinson ◽  
L. Elliott ◽  
J. Allainguillaume ◽  
C. Norris ◽  
R. Welters ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Distribution Map ◽  
The Uk ◽  
Hybrid Distribution
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