Genetic Analysis of Seed-Oil Concentration across Generations and Environments in Sunflower

Crop Science ◽  
2003 ◽  
Vol 43 (1) ◽  
pp. 135 ◽  
Author(s):  
A. J. Leon ◽  
F. H. Andrade ◽  
M. Lee
Keyword(s):  
Genetic Analysis ◽  
Seed Oil ◽  
Oil Concentration

Genetic Analysis of Seed-Oil Concentration across Generations and Environments in Sunflower

Crop Science ◽  
2003 ◽  
Vol 43 (1) ◽  
pp. 135 ◽  
Author(s):  
A. J. Leon ◽  
F. H. Andrade ◽  
M. Lee
Keyword(s):  
Genetic Analysis ◽  
Seed Oil ◽  
Oil Concentration

Recovery of field-grown canola from sulfur deficiency

1996 ◽  
Vol 36 (1) ◽  
pp. 79 ◽  
Author(s):  
PJ Hocking ◽  
A Pinkerton ◽  
A Good
Keyword(s):  
Seed Yield ◽  
Seed Oil ◽  
No Reduction ◽  
Stem Elongation ◽  
Potassium Sulfate ◽  
Growth Stages ◽  
Flower Buds ◽  
S Deficiency ◽  
Oil Concentration ◽  
Seed Yields

Sulfate-sulfur was applied to sulfur (S)-deficient canola at several growth stages in a field experiment at Cargo near Orange, New South Wales. Applications of 0, 10 or 40 kg S/ha (S0, S10 and S40) as mixtures of potassium sulfate and potassium chloride were made at sowing, the 5-6 leaf rosette stage, flower buds visible, stem elongation and first flowering. The plots received either 80 or 160 kg nitrogen (N)/ha at sowing. Plants from the S0 plots showed symptoms of severe S deficiency during rapid stem elongation, and had a 52% reduction in seed yield and a 21% reduction in seed oil concentration compared with the S40 plants. Application of S10 at sowing, or topdressing S-deficient plants with this rate of S, was inadequate because, although seed oil concentrations were normal (39-42%), seed yields were 25% lower than those from plots that received S40. Topdressing S-deficient plants with S40 at either the 5-6 leaf rosette stage, flower buds visible or stem elongation resulted in the same seed yields and seed oil concentrations as obtained when S40 was applied at sowing. However, there was a 15% reduction in seed yield but no reduction in seed oil concentration when the S40 topdressing was delayed until flowering. Although S10 was inadequate to correct the S deficiency, there was no reduction in either seed yield or seed oil concentration when S10 was topdressed as late as flowering, when compared with this rate of S applied at sowing. Seed meal protein levels were increased by the S40 topdressings. Concentrations of S in seed from the S0 and S10 plants were below the critical value of 0.36% for canola. Seed N:S concentration ratios of S-deficient plants were greater than 10, but 7.5 for plants which received adequate S. Total glucosinolates in seed were increased by the application of S, but the levels were still well below the limit set for the canola standard.

Effect of inoculation and nitrogen fertilization on nodulation, seed yield and quality of soya beans

1972 ◽  
Vol 78 (2) ◽  
pp. 179-182 ◽  
Author(s):  
S. Abu-Shakra ◽  
A. Bassiri
Keyword(s):  
Amino Acids ◽  
Seed Yield ◽  
Nitrogen Fertilization ◽  
Seed Weight ◽  
Seed Oil ◽  
Dry Weight ◽  
Yield And Quality ◽  
Oil Concentration ◽  
Sulphur Amino Acids

SUMMARYSoya beans grown on land planted the previous year with inoculated soya beans produced more nodules, lodging, seed yield, 1000 seed weight, and protein content and less seed oil concentration as compared to those grown on land that was planted with non-inoculated soya beans. Nitrogen fertilization (120kg N/ha) reduced the total number of nodules per plant. Increasing inoculation rates of the seed increased the dry weight of nodules per plant. Location, nitrogen fertilization, and inoculation increased or decreased the levels of certain amino acids but had no significant effect on the sulphur amino acids, cystine and methionine.

scholarly journals Influence of genotype on protein and oil concentration of soybean seeds

2010 ◽  
Vol 53 (4) ◽  
pp. 793-799 ◽  
Author(s):  
Esmael Lopes dos Santos ◽  
Antonio Eduardo Pípolo ◽  
Ricardo Tadeu de Faria ◽  
Cássio Egidio Cavenaghi Prete
Keyword(s):  
Protein Concentration ◽  
Culture Medium ◽  
Seed Oil ◽  
Soybean Seeds ◽  
Glutamine Concentration ◽  
Liquid Culture Medium ◽  
Immature Seeds ◽  
Oil Concentration

Aiming at evaluating genotype influence on the concentration of protein and oil, immature seeds of cultivars CD 202 and CD 206 were removed from the mother-plant, in the stage R5, and were grown in vitro, in a liquid culture medium which contained 20, 40 and 60 mM of glutamine, during eight days. Afterwards, the concentrations of oil and protein were compared to the contents of the seeds cultivated in vivo. With a higher availability of glutamine for the seed, there was an increase of protein content. The genotypes were statistically different as far as the protein concentration was concerned,which confirmed that the genotype had influence on the concentration of protein in the seed. Oil and protein concentrations were inversely related when a variation of glutamine concentration occurred.

An Evaluation of the Oil Concentration in Sesame Seeds in Relation to Developmental Stage, Node Position and Capsule Age

1984 ◽  
Vol 20 (2) ◽  
pp. 129-134
Author(s):  
S. N. Saha ◽  
S. C. Bhargava
Keyword(s):  
Seed Oil ◽  
Dry Weight ◽  
Yield Potential ◽  
Main Shoot ◽  
Oil Accumulation ◽  
Sesame Seeds ◽  
Oil Concentration ◽  
Sesame Genotypes ◽  
Node Position ◽  
Oil Formation

SUMMARYWeekly measurements were made of the seed oil concentration (% dry weight) in five sesame genotypes (Sesamum indicum) from flowering to maturity. During early but not late development the oil concentration of main shoot capsules was less variable than that in capsules taken from branches. The oil concentration of seeds from capsules at different nodes decreased from 67 to 22% between the lowest (oldest) capsule at node 8 and the youngest one at the uppermost node (25) in 1976, and from 65 to 19% for the same nodes in 1977. Variations in oil accumulation in relation to capsule age revealed that oil formation begins within 5 days after fertilization and maximum accumulation (52% oil) was achieved after 30 days. The implications of these findings for the assessment of oil yield potential are discussed.

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 soluble sugar content in silique wall on seed oil accumulation during the seed-filling stage in Brassica napus

2018 ◽  
Vol 69 (12) ◽  
pp. 1251
Author(s):  
Fei Ni ◽  
Jiahuan Liu ◽  
Jing Zhang ◽  
Mohammad Nauman Khan ◽  
Tao Luo ◽  
...  
Keyword(s):  
Seed Yield ◽  
Seed Oil ◽  
Sugar Content ◽  
Soluble Sugar ◽  
C:N Ratio ◽  
Oil Accumulation ◽  
N Application ◽  
Soluble Sugar Content ◽  
Oil Synthesis ◽  
Oil Concentration

Soluble sugar content in silique wall and seeds of rapeseed (Brassica napus L.) has significant effects on seed oil formation and accumulation. We studied the relationship between soluble sugar content in B. napus seeds and silique wall and oil concentration under field conditions in two cropping seasons, and examined changes in soluble sugar content in seeds and silique wall under different nitrogen (N) levels. Two commercialised Chinese rapeseed varieties, HZ9 and HZ62, with high seed yield and different N responses were used. Our results indicated that carbon (C):N ratio and soluble sugar content in silique wall had the greater effect on seed oil concentration. When C:N ratio and soluble sugar content in silique wall were within 5–15% and 10–25%, respectively, plants had relatively well coordinated C and N metabolism, facilitating oil accumulation. During 25–35 days of silique development, when C:N ratio and soluble sugar content in silique wall were within 10–15 and 15–25%, respectively, oil synthesis was fastest; the highest accumulation rate was 3.8% per day. When they were each <5%, seeds tended to mature, and oil synthesis gradually decreased, ceased or degraded. During the early stage of silique development, if C:N ratio and soluble sugar content in silique wall were >15% and 30%, there was no apparent tendency for oil accumulation, probably because of adverse environmental conditions. When N application increased from 0 to 270kg ha–1, final oil concentration in seeds decreased by 0.024%. In summary, C:N ratio and soluble sugar content in silique wall are important in regulating seed oil concentration, whereas excessive N application significantly reduced seed oil concentration. Therefore, appropriate reduction of N application would save resources, provide environment benefits and increase rapeseed oil production with no substantial reduction in seed yield, through coordinated seed yield and oil concentration.

Genetic Analysis of Morphological Characteristics and Seed Oil Content of Cotton (Gossypium hirsutum L.)

2003 ◽  
Vol 3 (4) ◽  
pp. 396-405 ◽  
Author(s):  
Saghir Ahmad . ◽  
Muhammad Zaffar Iqba . ◽  
Saeed Ahmad . ◽  
Muhammad Attique Sad . ◽  
Noor-ul-Islam Khan .
Keyword(s):  
Genetic Analysis ◽  
Gossypium Hirsutum ◽  
Oil Content ◽  
Seed Oil ◽  
Morphological Characteristics ◽  
Seed Oil Content ◽  
Gossypium Hirsutum L
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