Effect of frost damage on the quality of canola<i>(B. napus)</i>

Daun, J. K.; Clear, K. M.; Mills, J. T.

doi:10.1007/bf03028737

Cited by 14 publications

(8 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This observation does not contradict the inferences about the significance of the air temperature and amount of precipitation at different plantdevelopment periods for the seed yield and chemical composition of seed made by other countries' researchers (Andersen, Heidmann, and Plauborg 1996;Champolivier and Merrien 1996;Daun, Clear, and Mills 1985;Muśnicki, Toboła, and Muśnicka 1999). Low temperatures and water deficit during seed-filling has reduced oleic acid (Champolivier and Merrien 1996;Pritchard et al 1999;Yaniv, Schafferman, and Zur 1995).…”

Section: Variability Of Rape Seed Yield and Quality Data Of Analysiscontrasting

confidence: 43%

“…Environmental conditions have a major influence on rapeseed yield and quality (Andersen, Heidmann, and Plauborg 1996;Daun, Clear, and Mills 1985;Muśnicki, Toboła, and Muśnicka 1999;Pritchard et al 1999). Weather conditions determine sowing time, which in turn influences soil moisture, temperature during the crops' reproductive stage, and disease occurrence.…”

Section: Introductionmentioning

confidence: 97%

See 1 more Smart Citation

Seed Yield and Quality of Winter Oilseed Rape as Affected by Nitrogen Rates, Sowing Time, and Fungicide Application

Butkutė¹,

Šidlauskas

Brazauskienė³

2006

Communications in Soil Science and Plant Analysis

View full text Add to dashboard Cite

This work reports the results of studies on the impact of sowing times (three dates), application of fungicides (protected and unprotected plots), and nitrogen rates (five treatments) on the seed yield, contents of crude protein (CP), glucosinolates (GSL), and crude fat (CF) in seed and on major unsaturated acids (oleic C18:1, linoleic C18:2, and linolenic C18:3) in oil of winter rape (Brassica napus L.) cv. Kasimir. A split-split plot design was used in the field trial conducted on Endocalcari-Epihypogleyic Cambisol during 1998-2002. Seed samples were analyzed by near infrared spectroscopy. ANOVA analysis was used to assess the significance of each factor for the yield and quality of seed of the tested cultivar. The seed yield significantly depended on harvest year, N rates annually, sowing time in three experimental years, and fungicide application in two years. CF and CP concentrations were significantly affected by sowing time and N rates each year of the experiment. A significant effect of fungicides was identified only in one harvest year. GSL concentration was significantly affected by sowing time in three years, by fungicides in two years, and 2725 by nitrogen rate annually. The effect of the studied factors on the composition of major unsaturated acids was inconsistent. Sowing time significantly affected the content of all three unsaturated acids in two years and fungicides only in one of the four harvest years.

show abstract

Section: Variability Of Rape Seed Yield and Quality Data Of Analysiscontrasting

confidence: 43%

Section: Introductionmentioning

confidence: 97%

Seed Yield and Quality of Winter Oilseed Rape as Affected by Nitrogen Rates, Sowing Time, and Fungicide Application

Butkutė¹,

Šidlauskas

Brazauskienė³

2006

Communications in Soil Science and Plant Analysis

View full text Add to dashboard Cite

show abstract

“…It is possible t h a t the springharvested seeds h a d ripened more fully and deposited more oil than the fall-harvested seeds. In a previous study (17), frost-damaged B. napus seeds were observed t o be immature and to contain less oil than non-damaged seeds. Spring-harvested seeds may have been p l a n t e d late and may have, t o a great extent, escaped the drought and heat which caused premature ripening and lower oil contents in much o f t h e 1984 Western Canadian canola crop.…”

Section: Fig 3 Spring-harvested B Campestris With Patches Of Thickmentioning

confidence: 88%

Quality, morphology and storability of canola and rapeseed harvested after overwintering in Northern Alberta

Daun¹,

Cooke²,

Clear³

1986

J Americ Oil Chem Soc

Self Cite

View full text Add to dashboard Cite

Samples of canola and rapeseed harvested after overwintering in Northern Alberta were compared to samples of fall-harvested seed from the same area. Springharvested seed had a weathered appearance due to changes in theepidermis and received lower grades than the unweathered fall-harvested seed. Spring-harvested seed had more oil and protein than fall-harvested seed, but also had higher free fatty acid content and conductivity and lower viability. Spring-harvested seed did not store as well as fall-harvested seed, having larger increases in free fatty acids, conductivity and storagefungi and larger decreases in viability when stored hermetically at 10% or 12.5% moisture.

show abstract

“…Drought was shown to increase protein concentration and decrease oil concentration, but had little effect on fatty acid composition of oil from soybean (Dornbos and Mullen 1992). Frost damage during ripening has been shown to reduce oil and C18:3 concentration and to increase C16:0 and free fatty acid concentration of canola oil (Daun et al 1985).…”

Section: Mots Clés: Génotype Environnement Qualité Des Graines Acimentioning

confidence: 99%

“…Additionally, photoperiod and light intensity have been shown to affect fatty acid composition in flax (Dybing and Zimmerman 1966). Frost damage during ripening of canola has been shown to reduce oil and C18:3 concentration and increase C16:0 and free fatty acid concentration, presumably by prematurely terminating seed maturation (Daun et al 1985). Sclerotinia stem rot and blackleg of canola could have similar effects, since both diseases can cause severe stem infections leading to premature plant death during flowering (Martens et al 1988).…”

Section: Environmental Variationmentioning

confidence: 99%

Genotypic and environmental effects on saturated fatty acid concentration of canola grown in Manitoba

McCartney¹,

Scarth²,

McVetty³

et al. 2004

Can. J. Plant Sci.

Self Cite

View full text Add to dashboard Cite

environmental effects on saturated fatty acid concentration of canola grown in Manitoba. Can. J. Plant Sci. 84: 749-756. The low saturated fatty acid concentration of canola oil relative to other vegetable oils has resulted in a favourable market share for canola. Understanding the effects of genotype and environment on saturated fatty acid concentration will facilitate Brassica napus breeding efforts aimed at maintaining or reducing saturate levels in the seed oil. Canola-quality B. napus samples from the Manitoba Crop Variety Evaluation Team (MCVET) trials in 1999, 2000 and 2001 were tested for fatty acid composition, oil concentration and protein concentration. Weather data were obtained from nearby weather stations. The majority of the variation in total saturates for the cultivars studied was attributed to variation in palmitic acid (C16:0) due to the genotype main effect and variation in stearic acid (C18:0) due to the genotype and environment main effects. The variation due to the genotype × environment interaction was small relative to the main effects for the individual saturated fatty acids. C18:0 and arachidic (C20:0) acid concentrations were correlated between genotypes, suggesting pleiotropy or that these traits are controlled by linked genes in the cultivars tested. The data also suggested that C16:0 and C18:0 acid concentrations are controlled by different genes. C18:0, C20:0 and behenic (C22:0) acid concentrations were correlated across environments, but did not correlate with C16:0 concentration. Relationships between weather variables and fatty acid composition, oil concentration and protein concentration were not established. Additive Main effects and Multiplicative Interaction (AMMI) analysis revealed that some canola cultivars were more stable than others with regard to total saturates over environments.

show abstract

Effect of frost damage on the quality of canola(B. napus)

Cited by 14 publications

References 12 publications

Seed Yield and Quality of Winter Oilseed Rape as Affected by Nitrogen Rates, Sowing Time, and Fungicide Application

Seed Yield and Quality of Winter Oilseed Rape as Affected by Nitrogen Rates, Sowing Time, and Fungicide Application

Quality, morphology and storability of canola and rapeseed harvested after overwintering in Northern Alberta

Genotypic and environmental effects on saturated fatty acid concentration of canola grown in Manitoba

Contact Info

Product

Resources

About