Correction - Time of planting effects on development, yield and oil quality of irrigated sunflower

1976 ◽  
Vol 16 (80) ◽  
pp. 417
Author(s):  
GD Keefer ◽  
JE McAllister ◽  
ES Uridge ◽  
BW Simpson
Keyword(s):  
Oleic Acid ◽  
Linoleic Acid ◽  
Oil Quality ◽  
Flowering Period ◽  
Reliable Index ◽  
Puccinia Helianthi ◽  
Seed Yields ◽  
Oleic And Linoleic Acids ◽  
Late Sowing

The effects of time of planting on irrigated sunflower were tested at Emerald during the 1969-70 and 1970-71 summer seasons. Plantings ranged from September to March. A growing degree day summation from a base of 0�C (GDDo) was the most reliable index of commencement of flowering (cv. 5.7 per cent). Sunfola commenced flowering at 1331 � 76 GDDo. In both seasons significantly higher seed and oil yields were obtained from a December planting (Seed yields 2628 kg ha-1 1969-70, 1808 kg ha-1 1970-71, oil yields 1025 kg ha-1 1969-70, 61 5 kg ha-1 1970-71). Lower yields at all times of planting in the second season were attributed to rust infection (Puccinia helianthi Schw) . A good correlation was obtained between oil quality (proportions of oleic and linoleic acids) and temperatures during the post flowering period. Oleic acid levels ranged from 12 to 48 per cent. Linoleic acid levels ranged from 39 to 73 per cent. Oil quality (per cent linoleic acid) improved with late sowing in association with lowered temperatures

Time of planting effects on development, yield and oil quality of irrigated sunflower

1976 ◽  
Vol 16 (80) ◽  
pp. 417 ◽  
Author(s):  
GD Keefer ◽  
JE McAllister ◽  
ES Uridge ◽  
BW Simpson
Keyword(s):  
Oleic Acid ◽  
Linoleic Acid ◽  
Oil Quality ◽  
Flowering Period ◽  
Reliable Index ◽  
Puccinia Helianthi ◽  
Seed Yields ◽  
Oleic And Linoleic Acids ◽  
Late Sowing

The effects of time of planting on irrigated sunflower were tested at Emerald during the 1969-70 and 1970-71 summer seasons. Plantings ranged from September to March. A growing degree day summation from a base of 0�C (GDDo) was the most reliable index of commencement of flowering (cv. 5.7 per cent). Sunfola commenced flowering at 1331 � 76 GDDo. In both seasons significantly higher seed and oil yields were obtained from a December planting (Seed yields 2628 kg ha-1 1969-70, 1808 kg ha-1 1970-71, oil yields 1025 kg ha-1 1969-70, 61 5 kg ha-1 1970-71). Lower yields at all times of planting in the second season were attributed to rust infection (Puccinia helianthi Schw) . A good correlation was obtained between oil quality (proportions of oleic and linoleic acids) and temperatures during the post flowering period. Oleic acid levels ranged from 12 to 48 per cent. Linoleic acid levels ranged from 39 to 73 per cent. Oil quality (per cent linoleic acid) improved with late sowing in association with lowered temperatures

scholarly journals Genotype and Seasonal Variation Affect Yield and Oil Quality of Safflower (Carthamus tinctorius L.) under Mediterranean Conditions

Agronomy ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 122
Author(s):  
Lara Abou Chehade ◽  
Luciana G. Angelini ◽  
Silvia Tavarini
Keyword(s):  
Fatty Acid Composition ◽  
Oleic Acid ◽  
Seasonal Variation ◽  
Fatty Acid ◽  
Linoleic Acid ◽  
Plant Height ◽  
Seed Yield ◽  
Oil Quality ◽  
Growing Season ◽  
Mediterranean Conditions

The adoption of climate-resilient and resource-use efficient crop species and varieties is a key adaptation action for farmers in the face of climate change. Safflower, an emerging oilseed crop, has been recognized for its high oil quality and its favorable agronomic traits such as drought and cold tolerance, making it particularly suitable to Mediterranean conditions. A 2-year field study was carried out to evaluate the effects of the genotype and growing season on the crop phenology, seed and oil production, macronutrient accumulation and partitioning, and fatty acid composition of spring-sown safflower grown under rainfed conditions. The experiment was conducted during the 2012 and 2013 growing seasons on an alluvial deep loam soil (Typic Xerofluvent) at the Centre for Agri-environmental Research “E. Avanzi” of the University of Pisa (Pisa, Central Italy). Higher seed yield and yield components (plant density, plant height, branching, number of capitula per plant and seeds per capitulum) were found in almost all genotypes when the seeds were sown in mid-March 2012 compared to in late April 2013. More favorable conditions in 2012, i.e., early sowing date, higher precipitation, and quite mild temperatures, led to a better seed and oil yield and greater aboveground biomass and nitrogen uptake, with the highest amounts being removed by straw. Greater seed yield was found to be associated with a greater plant height and a higher number of capitula per plant. Oil content was negatively affected by the higher temperatures and the lower amounts of precipitation that occurred during the 2012 growing season. Seasonal variation in fatty acid composition depended on the genotype. Lower precipitation and higher temperatures during 2013 favored oleic acid content in high linoleic acid genotypes and linoleic acid in medium to high oleic acid genotypes. Among the genotypes, the linoleic-type Sabina and the oleic-type Montola 2000 performed the best in both seasons. The results, besides identifying promising safflower genotypes for spring sowing in the Mediterranean region and for future breeding programs, pointed out the importance of early sowing to contrast unfavorable environmental conditions during seed-filling, thus ensuring higher yields.

Variation for fatty acids and oil quality parameters in backcross population of groundnut (Arachis hypogaea L.)

2015 ◽  
Vol 35 (4) ◽  
Author(s):  
K. Gangadhara ◽  
H. L. Nadaf ◽  
J. Ashish
Keyword(s):  
Oleic Acid ◽  
Linoleic Acid ◽  
Iodine Value ◽  
Block Design ◽  
Oil Quality ◽  
Quality Parameters ◽  
Recurrent Parent ◽  
Backcross Population ◽  
Mean Values ◽  
Backcross Populations

Groundnut is an important oilseed legume and oil quality mainly depends on its fatty acid composition. In present study, backcross populations of the cross between GPBD 4 × GM 4-3 (using GPBD 4 as recurrent parent) were evaluated for two generations in augmented randomized block design at experimental plots of University of Agricultural Sciences, Dharwad. Frequency distribution and mean values of both generations showed considerable variability for oleic acid, linoleic acid, O/L ratio and iodine value. Both Oleic acid and linoleic acid are associated strongly with linoleic acid and iodine value in both backcross generations. Moderate heritability of oleic acid and high heritability of O/L ratio and also negative correlation between O/L ratio and linoleic acid suggests the scope for selection of oleic acid and O/L ratio to improve oil quality in groundnut.

Prediction of oil quality of sunflower from temperature probabilities in eastern Australia

1980 ◽  
Vol 31 (3) ◽  
pp. 477 ◽  
Author(s):  
HC Harris ◽  
JR McWilliam ◽  
VJ Bofinger
Keyword(s):  
Linoleic Acid ◽  
Oil Quality ◽  
South Australia ◽  
High Quality ◽  
South Wales ◽  
Cropping Season ◽  
Eastern Australia ◽  
Market Requirements ◽  
Western Victoria

The probability of the occurrence of temperatures suited to the production of high quality sunflower oil has been examined for 37 locations in eastern Australia. The results indicate that temperatures suited to development of oil with =62% linoleic acid occur throughout the potential cropping season with a probability =0.6 in Tasmania, south-western Victoria, south-eastern South Australia and the highlands of New South Wales. In most established cropping regions probabilities of this level are reached only in the later third or half of the sunflower growing season. The probability of temperature suited to production of oil with = 72 % linoleic acid is less than 0.6 in all regions for much of the season, and in any environment only very late-sown crops can be expected to yield oil of this quality. The results are discussed in the light of factors controlling the distribution of sunflower production, and it is concluded that, with existing genotypes, adequate supplies of high quality oil to meet market requirements will not be reliably available from the Australian crop.

Sowing time effects on the development, yield and oil characteristics of irrigated sunflower (Helianthus annuus) in semi-arid tropical Australia

1984 ◽  
Vol 24 (124) ◽  
pp. 110 ◽  
Author(s):  
AL Garside
Keyword(s):  
Linoleic Acid ◽  
Oil Quality ◽  
Sowing Date ◽  
Research Station ◽  
Sowing Time ◽  
Time Effects ◽  
Tropical Australia ◽  
Oil Characteristics ◽  
Seed Yields ◽  
Semi Arid

The effect of sowing time on development, yield and oil characteristics of irrigated sunflowers was studied in an experiment at the lrrigation Research Station, Ord lrrigation Area (15� 30'S, 128� 43'E), Western Australia in 1978. Sunflower cultivars Hysun 10, Hysun 30, Sunfola 68-2 and Polestar were sown at monthly intervals between mid-February and mid-August. Delay in sowing from February to June increased the period from sowing to physiological maturity by between 10 d (Hysun 10) and 24 d (Hysun 30), due mainly to an increase in the period from emergence to bud visible. Results showed that May sowing of the late maturing hybrid Hysun 30 was the best combination, with a seed yield of 2.3 t/ha. Oil content and quality (% linoleic acid) were highest with April sowing, 47.0 and 57.0%, respectively. Sowings from April to July gave acceptable yields (1.8-2.0 t/ha) and oil contents (45-47%). However, oil quality, although responding to sowing date, was always lower than the accepted level of 60% linoleic acid. Seed yields, which were considerably lower than those recorded for irrigated sunflower in southern Australia, are discussed in terms of the environmental limitations of the region

scholarly journals Nutritional value of Sesamum indicum L. was improved by Azospirillum and Azotobacter under low input of NP fertilizers

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Asia Nosheen ◽  
Asghari Bano ◽  
Rabia Naz ◽  
Humaira Yasmin ◽  
Ishtiaq Hussain ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Fatty Acid ◽  
Plant Growth ◽  
Block Design ◽  
Oil Quality ◽  
Growth Yield ◽  
Plant Growth Promoting Rhizobacteria ◽  
Acid Value ◽  
Plant Growth Promoting

Abstract Background Sesame (Sesame indicum L.) is well-known as a versatile industrial crop having various usages and contains 50–55% oil, 20% protein, 14–20% carbohydrate and 2–3% fiber. Several environmental factors are known to adversely affect yield and productivity of sesame. Our overall aim was to improve the growth, yield and quality of sesame cv. TS-3 using plant growth promoting rhizobacteria (PGPR) and saving the nitrogen and phosphate fertilizers (NP) by 50%. Field experiment (randomized complete block design) was conducted during the months of July to October of two consecutive years 2012–2013. Azospirillum (AL) and Azotobacter (AV) were applied as seed inoculation alone as well as along with half of the recommended dose of nitrogen (N) and phosphate (P) fertilizers (urea and diammonium phosphate) at the rate of 25 kg/ha and 30 kg/ha respectively. Results Here we report that A. lipoferum along with half dose of NP fertilizers (ALCF) were highly effective in increasing the agronomic and yield traits of sesame as compared to the control. A. vinelandii plus NP fertilizers (AVCF) exhibited higher seed oil content. Minimum acid value, optimum specific gravity and modified fatty acid composition were observed in ALCF treatment. Increase in oleic acid by ALCF is directly linked with improved oil quality for health benefits as oleic acid is the fatty acid which creates a balance between saturation and unsaturation of oil and for the hypotensive (blood pressure reducing) effects. Conclusion It is inferred that ALCF treatment improved plant growth, seed yield and oil quality of sesame pertaining to good quality edible oil production.

EFFECTS OF SEEDING AND HARVESTING DATES ON YIELD AND OIL QUALITY OF SUNFLOWER CULTIVARS

1985 ◽  
Vol 65 (2) ◽  
pp. 299-305 ◽  
Author(s):  
W. DEDIO
Keyword(s):  
Linoleic Acid ◽  
Oil Content ◽  
Oil Quality ◽  
Seed Moisture Content ◽  
Seeding Date ◽  
Seed Moisture ◽  
Harvest Dates ◽  
Linoleic Acid Level ◽  
Better Than

Several sunflower cultivars were seeded at approximately weekly intervals from early May to 20 June from 1978 to 1981. In another experiment the plots were harvested at different dates to study the effects on yield and oil quality. In general the yield was highest for all cultivars at the earliest seeding, with the late maturing cultivars performing the best. In late plantings, the yields were in general lower and early maturing cultivars performed better than the later ones. The cross-over point varied from year to year ranging from 16 May to 7 June except in 1981 when there was no cross-over. The oil content was similarly affected, declining more rapidly with delay in seeding in the later maturing hybrids than in the early hybrids. In the separate study on harvest dates, maximum oil content was reached when seed moisture content had declined to 45%. This occurred approximately 1 wk earlier in the early cultivars than in the late ones. Maximum linoleic acid level was reached approximately a week after the maximum oil content was obtained.Key words: Seeding date, sunflower, oil content, yield, linoleic acid, harvesting date

scholarly journals Chemometric Characterization of Almond Germplasm: Compositional Aspects Involved in Quality and Breeding

2011 ◽  
Vol 136 (4) ◽  
pp. 273-281 ◽  
Author(s):  
Ossama Kodad ◽  
José M. Alonso ◽  
María T. Espiau ◽  
Gloria Estopañán ◽  
Teresa Juan ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Oleic Acid ◽  
Linoleic Acid ◽  
Oil Content ◽  
Lipid Fraction ◽  
Germplasm Collection ◽  
Principal Component ◽  
Dry Weight ◽  
Significant Negative Correlation ◽  
Oleic And Linoleic Acids

The oil content and the percentage of the main fatty acids were determined in a set of 73 almond (Prunus amygdalus Batsch) cultivars from 10 different countries present at the almond germplasm collection of the Centro de Investigación y Tecnología Agroalimentaria de Aragón, Spain (CITA). Wide variability was observed for oil content, ranging from 51.5% to 66.8% on a dry weight (DW) basis. For the main fatty acids in the lipid fraction, the variability ranged from 62.9% to 77.3% for oleic acid, from 14.0% to 26.8% for linoleic acid, from 4.9% to 7.0% for palmitic acid, from 1.5% to 3.4% for stearic acid, and from 0.3% to 0.6% for palmitoleic acid. No correlations were found between the oil content and the percentages of the different fatty acids, but a significant negative correlation was found between the percentages of oleic and linoleic acids. Principal component (PC) analysis showed that palmitic, oleic, and linoleic acids and the oleic acid/linoleic acid ratio were primarily responsible for the separation on principal component 1. The content of each component was not related to the country of origin of the different cultivars, indicating that almond fatty acid composition is genotype-dependent. Cultivars with high and stable oil content and low linoleic acid should be selected as parents in a breeding program to increase kernel oil stability and nutritional value.

EFFECT OF DESICCANT APPLICATION AND TIME OF HARVEST ON YIELD AND OIL QUALITY OF SUNFLOWER (Helianthus annuus L.) / EFECTO DE APLICACIÓN DE DESECANTE Y TIEMPO DE COSECHA SOBRE EL RENDIMIENTO Y CALIDAD DE ACEITE EN EL GIRASOL (Helianthus annuus L.) / EFFET DE LA DESSICCATION ET DE LA DATE DE LA RÉCOLTE SUR LE RENDEMENT ET LA QUALITÉ DE L’HUILE CHEZ LE TOURNESOL (Helianthus annuus L.)

Helia ◽  
2001 ◽  
Vol 24 (34) ◽  
pp. 105-114
Author(s):  
M.A. Khan Shafiullah ◽  
M.A. Rana Baitullah ◽  
B.R. Khan ◽  
C.A. Ozair
Keyword(s):  
Helianthus Annuus ◽  
Seed Yield ◽  
Oil Quality ◽  
Flower Initiation ◽  
Helianthus Annuus L ◽  
Seed Moisture ◽  
Sunflower Crop ◽  
Subsequent Crop ◽  
Seed Yields

SUMMARYA field study was conducted on four desiccants; Dimethipine, Metoxuron (Dosanex), Drop-leaf and Diaquat, during 1990 and 1991. Two rates of each desiccant were sprayed on sunflower (Helianthus annuus L.) hybrid NK-212 15 days after flower completion. Two harvesting dates (10 and 20 days) after desiccant application were superimposed on each desiccant treatment. The objective of this specific study was to determine the relative efficacy of different desiccants at two different rates, harvested on two different dates after application and their consequent effect on seed yield, oil quality and other agronomic characters of sunflower. As an average of the two years, desiccant treatment means were significantly different for all the traits studied. The lowest seed yields (1667 and 1674 kg/ha) were obtained from lower and higher doses of Diaquat, respectively. Conversely, higher yields were obtained by both rates of either Drop-leaf (2222 and 2342 kg/ha) or Metoxuron (2121 and 2168 kg/ha) as compared with the other treatments. Application of Diaquat and Dimethipine reduced the yield significantly as compared with the control, Drop-leaf and Metoxuron (Dosanex). Similarly, low and high oil contents were attributed to Diaquat and Drop treatments, respectively. This study concluded that Dropleaf and Metoxuron (Dosanex) can be safely used as desiccants on sunflower at the rates of 0.225 and 0.750 kg ai/ha, respectively. The sunflower crop should be harvested 35 days after flower initiation or 25 days after flower completion to get higher seed yield, oil content and low seed moisture contents to minimize the post harvest losses and simultaneously vacate the field 5 to 10 days earlier for the subsequent crop.

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