Relationship of seed quality traits for greenhouse-grown versus field-grown high erucic acid rapesseed: Is seed quality trait selection for greenhouse-grown seed worthwhile?

2008 ◽  
Vol 88 (3) ◽  
pp. 419-423 ◽  
Author(s):  
J. Bahrani ◽  
P. B. E. McVetty
Keyword(s):  
Erucic Acid ◽  
Seed Quality ◽  
Quality Trait ◽  
Quality Traits ◽  
High Erucic Acid ◽  
Glucosinolate Concentration ◽  
The Mean ◽  
Selection For ◽  
Relationship Of ◽  
Seed Quality Traits

A study of the relationship of seed quality traits for greenhouse-grown and field-grown seed samples was conducted. Early generation high erucic acid rapeseed (HEAR) cross progeny were grown in the greenhouse, selfed and then the selfed seeds were grown in the field at the University of Manitoba. The oil, protein, erucic acid and glucosinolate concentrations of greenhouse-grown versus field-grown seed samples were compared. There were differences (P ≤ 0.01) between the means of all seed quality traits for greenhouse-grown versus field-grown seed samples. The mean oil, protein and erucic acid concentrations of field-grown seed samples were higher than for greenhouse-grown seed samples. In contrast, the mean glucosinolate concentration of greenhouse-grown seed samples was higher than for field-grown seed samples. Rank correlations between greenhouse-grown seed samples and field-grown seed samples for all seed quality traits were significant but moderate in magnitude. Selection for oil, protein, erucic acid and glucosinolate concentration in greenhouse-grown seed samples dramatically increased the number of high seed quality F4 families in the field and was successful for all seed quality traits. It is concluded that seed quality selection in greenhouse-grown seed samples is worthwhile and that this procedure could lead to greater efficiencies in Brassica plant breeding programs. Key words: Rapeseed (Brassica napus L.), oil, protein, erucic acid, glucosinolates

Assessment of seed quality performance and heterosis for seed quality traits in hybrid high erucic acid rapeseed (HEAR)

2011 ◽  
Vol 91 (5) ◽  
pp. 837-846 ◽  
Author(s):  
R. D. Cuthbert ◽  
G. Crow ◽  
P. B. E. McVetty
Keyword(s):  
Erucic Acid ◽  
Seed Oil ◽  
Seed Quality ◽  
Agronomic Traits ◽  
Quality Traits ◽  
Quality Performance ◽  
High Erucic Acid ◽  
High Erucic Acid Rapeseed ◽  
Oil Concentration ◽  
Seed Quality Traits

Cuthbert, R. D., Crow, G. and McVetty, P. B. E. 2011. Assessment of seed quality performance and heterosis for seed quality traits in hybrid high erucic acid rapeseed (HEAR). Can. J. Plant Sci. 91: 837–846. Hybrids are becoming the dominant cultivar type in Brassica napus L. to utilize the well-documented heterosis for seed yield in canola/rapeseed. While there are numerous reports of heterosis for agronomic traits in B. napus hybrids, there are few reports of heterosis for seed quality traits in this species. The objectives of this study were to determine if high parent or commercial heterosis for any seed quality traits occurs in high erucic acid rapeseed (HEAR) hybrids. Seed quality performance of 45 F1 B. napus HEAR hybrids, derived from crosses of 12 geographically and genetically distinct (based on known pedigrees) HEAR cultivars/lines, was assessed in the current study using seven HEAR cultivars/lines developed by the University of Manitoba (UM) and five proprietary European (EU) HEAR cultivars/lines. Replicated field trials to assess seed oil, protein, sum of oil and protein, glucosinolate, and erucic acid concentrations were conducted over six environments in Manitoba during 2004 and 2005. High parent heterosis and commercial heterosis for seed oil concentration up to 9% and up to 14%, respectively, was observed with hybrids displaying seed oil concentrations as high as 533 g kg−1. Low parent heterosis for protein and glucosinolate concentrations was also observed. Erucic acid concentration displayed commercial heterosis. Many hybrids displayed near zero percent heterosis for any seed quality traits; however, overall seed quality was maintained or increased even in these hybrids. The results of this study indicate that development of HEAR hybrids can be an effective way to improve seed quality components, especially oil concentration, in this crop.

Effect of genotype and environment on seed quality in sweet narrow-leafed lupin (Lupinus angustifolius L.)

2004 ◽  
Vol 55 (7) ◽  
pp. 745 ◽  
Author(s):  
Wallace A. Cowling ◽  
Allen Tarr
Keyword(s):  
Variance Component ◽  
Seed Oil ◽  
Seed Protein ◽  
Seed Quality ◽  
Field Trials ◽  
Lupinus Angustifolius ◽  
Quality Trait ◽  
Quality Traits ◽  
Oil Seed ◽  
Seed Quality Traits

Seed quality of 6 sweet narrow-leafed lupin (Lupinus angustifolius) cultivars was measured in 126 field trials in Western Australia over 11 years at 55 locations to determine the effect of locations (l), years (y), genotypes (g), and genotype × environment interactions on total seed alkaloids, seed oil, seed protein, seed size, and hectolitre weight. The variance component for g exceeded the sum of those for g × l, g × y, and g × l × y for all traits. The ranking of cultivars for each seed quality trait was fairly constant across years and locations. The largest variance component was l × y, which indicated that the ranking of locations for seed quality traits was unpredictable from year to year. There was a strong negative correlation between seed oil and seed protein across the 6 cultivars (r = –0.96, P < 0.01) and 126 experiments (r = –0.522, P < 0.001). Large seeds, produced at some experimental sites, were associated with high seed alkaloids and high seed oil. Seed quality traits were not associated with soil pH, latitude, or longitude of the experiments, but low pre-season rainfall was associated with higher hectolitre weight. This study indicates that it should be possible to identify genotypes with superior quality from relatively few field trials. Progress in breeding for protein and oil combined will be slowed by the strong negative genotypic correlation between the two traits.

Recurrent selection for seed quality traits in an opaque-2 maize population

Euphytica ◽  
1985 ◽  
Vol 34 (3) ◽  
pp. 857-863
Author(s):  
F. Pani ◽  
E. Gentinetta ◽  
A. Verderio ◽  
C. Lorenzoni ◽  
M. Motto
Keyword(s):  
Recurrent Selection ◽  
Seed Quality ◽  
Quality Traits ◽  
Maize Population ◽  
Selection For ◽  
Seed Quality Traits

Identification of quantitative trait loci controlling seed physical and nutrient traits in cotton

2007 ◽  
Vol 17 (4) ◽  
pp. 243-251 ◽  
Author(s):  
Xian-Liang Song ◽  
Tian-Zhen Zhang
Keyword(s):  
Phenotypic Variation ◽  
Seed Quality ◽  
Quality Trait ◽  
Quality Traits ◽  
Nutrient Quality ◽  
Complex Genetics ◽  
Breeding Programmes ◽  
Variation Explained ◽  
Nutrient Traits ◽  
Seed Quality Traits

AbstractCotton (Gossypium spp.) is an important source of edible oil and protein meals. Complex genetics and strong environmental effects hinder progress in seed quality trait breeding in this species. The use of molecular markers can improve an understanding of the genetic factors conditioning seed quality traits, and is expected to assist in selection of superior genotypes. This study was conducted to identify quantitative trail loci (QTL) associated with seed physical and nutrient traits in cotton. To achieve this objective, a population of 140 BC1S1 lines developed from a cross between ‘TM-1’ and ‘Hai7124’ was evaluated in 2003 and 2004. A linkage map consisting of 918 markers from this population was used to identify QTL using QTLNetwork-2.0 software. Eleven single QTL were identified for kernel percentage, kernel oil percentage, kernel protein percentage and seven amino acids (Asp, Ser, Gly, Ile, Leu, Phe and Arg). Phenotypic variation explained by each individual QTL ranged from 10.89 to 46.28%. Two epistatic QTL for Cys and Leu were detected, explaining 9.55 and 4.43% of the phenotypic variation. These QTL detected for seed quality traits in cotton are expected to be useful for further breeding programmes targeting development of cotton with improved nutrient quality.

Potential of the C Genome of Different Variants of Brassica oleracea for the Improvement of Agronomic and Seed Quality Traits of B. napus Canola

Crop Science ◽  
2019 ◽  
Vol 59 (6) ◽  
pp. 2608-2620 ◽  
Author(s):  
Azam Nikzad ◽  
Berisso Kebede ◽  
Jaime Pinzon ◽  
Jani Bhavikkumar ◽  
Rong-Cai Yang ◽  
...  
Keyword(s):  
Brassica Oleracea ◽  
Seed Quality ◽  
Quality Traits ◽  
C Genome ◽  
Seed Quality Traits

Relative economic importance of some wool quality traits for Merino and crossbred wool types

1970 ◽  
Vol 10 (46) ◽  
pp. 544 ◽  
Author(s):  
PD Mullaney ◽  
ID Sanderson
Keyword(s):  
Selection Index ◽  
Fibre Diameter ◽  
Economic Importance ◽  
Quality Traits ◽  
Regression Analyses ◽  
Independent Variables ◽  
Economic Weights ◽  
Australian Wool ◽  
The Mean ◽  
Selection For

The economic weights of various quality traits of both Merino and crossbred wool types hive been estimated. Australian averages of clean wool prices for Australian Wool Board wool types, into which mid-side samples of fleece were classified, have been used.For each of fifteen seasons, 1953-54 to 1967-68, the mean clean wool price for each wool type was expressed as a percentage of the mean wool price for all types in that season. Rank correlations for price-type means were high between seasons, varying between 0.91 and 0.98. Further analyses were therefore performed using prices averaged for the 15 seasons. Multiple regression analyses were carried out, the dependent variable being the mean price for each fleece type, expressed as a percentage of the average price of all types for al) seasons and the independent variables being the measurement of fibre diameter, crimps per inch and length, and the subjective gradings of colour, handle, character, and quality number. For both Merino and crossbred wool types, the major determinants of price were quality number, colour, and handle, with quality number being of overwhelming importance. The remaining variables were not important as joint determinants of price, and were deleted from the analyses. Quality number, colour, and handle controlled about 81 and 86 per cent of the variation in price for Merino and crossbred wool types. It is likely that most progress in selection for wool production would be made by incorporating these findings into a selection index.

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