scholarly journals On-farm evaluation of seed yield and oil quality of linseed (Linum usitatissimum L.) in inland areas of Tuscany, Central Italy

2016 ◽  
Vol 11 (3) ◽  
pp. 199 ◽  
Author(s):  
Luciana G. Angelini ◽  
Silvia Tavarini ◽  
Daniele Antichi ◽  
Lara Foschi ◽  
Marco Mazzoncini
Keyword(s):  
Seed Yield ◽  
Linum Usitatissimum ◽  
Cropping Systems ◽  
Oil Quality ◽  
Economic Value ◽  
Central Italy ◽  
Weather Conditions ◽  
Oil Composition ◽  
Valuable Alternative

Traditional oilseed crops, such as linseed (<em>Linum usitatissimum</em> L.), may represent valuable alternative crops in cropping systems dominated by cereals, due to their adaptability to poor soils and to their high economic value related to the interesting quality of the oil, which is being increasingly appreciated by consumers and industry. The aim of this study was to test the adaptability of linseed to the inland marginal areas of Tuscany, and to explore the levels of crop yield and oil quality which can be achieved in hilly and lowland environments. For three years (2011-2014), experimental open fields (1- 5 ha each) were established and monitored in six commercial farms located in the inland countryside of Pisa province, Tuscany, Central Italy. The effect of environment (hilly and plain areas) was assessed in terms of yield and yield components as well as oil content and composition. Interestingly, seed yield and biomass production were very stable over years in the two areas of cultivation, irrespectively of yearly differences in weather conditions. As expected, higher yields were obtained in plain than in hilly areas. Regarding oil composition, oil extracted from linseed grown in plain environments was richer in linolenic acid, while, oppositely, both oleic and linoleic acids were more abundant in oil from hilly areas. Definitively, our results demonstrated that linseed might be a valuable alternative to cereal crops for marginal lands of Tuscany and, more in general, of Central Italy.

Flax (Linum usitatissimum L.) responses to chilling and heat stress on flowering and seed yield

1997 ◽  
Vol 77 (1) ◽  
pp. 97-99 ◽  
Author(s):  
L. V. Gusta ◽  
B. J. O'Connor ◽  
R. S. Bhatty
Keyword(s):  
Heat Stress ◽  
Seed Yield ◽  
Linum Usitatissimum ◽  
Oil Quality ◽  
Oil Composition ◽  
Flowering Stage ◽  
Linum Usitatissimum L ◽  
Flower Yield ◽  
Delayed Flowering ◽  
Chilling Treatment

The effect of a 5 °C chilling treatment at the seedling stage on days to flower, yield and oil quality and quantity was determined for seven cultivars of flax (Linum usitatissimum L.). Three days of chilling delayed flowering in Dufferin, McGregor and NorLin, whereas 5 d of chilling delayed flowering in all cultivars except Andro and Noralta. Seven days of chilling reduced the seed yield of only McGregor, Norlin, NorMan and Vimy. The effect of a 40 °C heat stress at the flowering stage on yield and oil composition was determined for the same seven cultivars. A heat stress of 40 °C for 3 d reduced the seed yield of NorMan, whereas, a 5 d stress reduced the seed yield of all cultivars except McGregor and Noralta. The composition of the oil was not affected by the heat stress. These results suggest genetic variability exists among flax cultivars for tolerance to chilling and heat stresses. Controlled tests can be used to select superior stress tolerant genotypes. Key words: Flax, chilling, heat, flowering, yield

Response of Wild Oat (Avena fatua), Flax (Linum usitatissimum), and Rapeseed (Brassica campestrisandB. napus)to Diclofop-methyl

Weed Science ◽  
1979 ◽  
Vol 27 (2) ◽  
pp. 212-215 ◽  
Author(s):  
P. N. P. Chow ◽  
D. G. Dorrell
Keyword(s):  
Protein Content ◽  
Iodine Number ◽  
Linum Usitatissimum ◽  
Oil Content ◽  
Oil Quality ◽  
Avena Fatua ◽  
Wild Oat ◽  
Oil Composition ◽  
Untreated Check

Diclofop-methyl {methyl ester of 2-[4-(2,4-dichlorophenoxy)phenoxy] propanoic acid} applied as postemergence treatment at rates of 0.84 to 1.68 kg/ha controlled 65 to 87% of the wild oat (Avena fatuaL.) without injuring flax (Linum usitatissimumL.) or rapeseed (Brassica campestrisL. andB. napusL.) Yields of both crops were significantly increased because wild oat competition was minimized. Wild oat control was further improved when adjuvants were added with the herbicide at a concentration of 0.5% (v/v) to the spray mixture. Oil content, iodine number, and linolenic acid concentration of flax, and oil content of rapeseed were increased with the application of the herbicide, while the protein content of meal from both crops was unaffected. When flax was grown in the greenhouse under weed-free conditions, the 0.84 and 1.12 kg/ha rates of the herbicide did not affect seed and oil composition, whereas the 1.68 kg/ha rate decreased protein content, and slightly increased oil content, but had no significant effect on iodine number when compared with the untreated check. The change in seed and oil quality of flax appears to be related to a reduction in weed competition by the herbicide.

Sulphur application improves the growth, seed yield and oil quality of canola

2013 ◽  
Vol 35 (10) ◽  
pp. 2999-3006 ◽  
Author(s):  
Hafeez ur Rehman ◽  
Qumer Iqbal ◽  
M. Farooq ◽  
Abdul Wahid ◽  
Irfan Afzal ◽  
...  
Keyword(s):  
Seed Yield ◽  
Oil Quality

scholarly journals Seed yield and seed quality of subterranean clover (Trifolium subterraneum L.) in growing conditions of Finland

1990 ◽  
Vol 62 (3) ◽  
pp. 221-226
Author(s):  
E. Varis ◽  
U. Peltola ◽  
R. Kauppila
Keyword(s):  
Seed Yield ◽  
Seed Quality ◽  
Subterranean Clover ◽  
Trifolium Subterraneum ◽  
Weather Conditions ◽  
Considerable Proportion ◽  
Early Variety ◽  
Growing Conditions ◽  
The University

Seed yield and overwintering of seeds of 22 Australian subterranean clover varieties were investigated in 1986 and 1987 at the Viikki Experimental Farm of the University of Helsinki. The seed yield varied remarkbly according to the variety and weather conditions of the two summers. Some varieties, such as Seaton Park, Woogenellup and Karridale, and during the summer of 1987 also the early variety Dalkeith, produced lots of seed. Some late varieties, e.g. Treeton, Tallarook and Esperance, produced very few seeds or no seeds at all. A considerable proportion of the seeds degenerated during the wet autumn conditions, by the end of October. Many seeds showed embryo dormancy, but complete dormancy or hard seeds were found only exeptionally. In spring 1988, some seedlings which had developed from overwintered burrs were found. There seems to be little hope of finding self-seeding subterranean clovers suitable for Finnish growing conditions.

Yield and quality of canola seed as affected by stage of maturity at swathing

2007 ◽  
Vol 87 (1) ◽  
pp. 13-26 ◽  
Author(s):  
C. L. Vera ◽  
R. K. Downey ◽  
S. M. Woods ◽  
J. P. Raney ◽  
D. I. McGregor ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Brassica Napus ◽  
Seed Development ◽  
Seed Yield ◽  
Oil Content ◽  
Seed Quality ◽  
Combined Treatment ◽  
Oil Composition ◽  
Yield And Quality

Swathing is an important canola (Brassica napus L.) harvest operation in western Canada. The determination of the optimum timing for this operation is worth considering, as premature swathing may lead to reduced seed yield and quality. Seed yield and quality of three canola cultivars (44A89, AC Excel and Ebony), as affected by two seeding dates and several harvest times (six or eight swathing times and one direct combined treatment) was investigated on a Black Chernozem silty loam soil at Melfort, Saskatchewan, Canada, during 1998, 2000 and 2001. Seed yield, weight, protein content (oil-free meal basis) and oil content generally increased with seed development and swathing time. Early seeding was more conducive to achieving higher seed yield, especially in good growing conditions, and resulted in heavier mature seeds with higher oil content. Seed oil composition also changed during seed development. The proportion of oleic (C18:1) and linolenic (C18:3) acids increased, while that of myristic (C14:0), palmitic (C16:0), palmitoleic (C16:1), stearic (C18:0), linoleic (C18:2) and ara chidic (C20:0) acids decreased. The levels of the long chain fatty acids eicosenoic (C20:1) and erucic (C22:1) acids were unaffected. However, the overall amount of fatty acids synthesized (mg 100 seeds-1) increased as seeds matured. Swathing was advantageous over direct combining in preventing weather-induced shattering. Key words: Brassica napus, canola, fatty acid, oil, protein, seed development, seed quality, shattering, direct combining, swathing

Effect of late season insect infestation on yield, yield components and oil quality of Brassica napus, B. rapa, B. juncea and Sinapis alba in the Pacific Northwest region of the United States

1999 ◽  
Vol 132 (3) ◽  
pp. 281-288 ◽  
Author(s):  
J. BROWN ◽  
J. P. McCAFFREY ◽  
B. L. HARMON ◽  
J. B. DAVIS ◽  
A. P. BROWN ◽  
...  
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Diamondback Moth ◽  
Oil Quality ◽  
Sinapis Alba ◽  
Yield Reduction ◽  
Insect Infestation ◽  
Late Season ◽  
Cabbage Seedpod Weevil

The effect of late season insect infestation on seed yield, yield components, oil content and oil quality of two canola species (Brassica napus L. and B. rapa L.) and two mustard species (B. juncea L. and Sinapis alba L.) was examined over 2 years. In each year, ten genotypes from each species were evaluated with late season insects controlled with either methyl parathion or endosulfan insecticides, and without insecticides. Major late season insect damage in 1992 was caused by cabbage seedpod weevil (Ceutorhynchus assimilis Paykull), while diamondback moth (Plutella xylostella L.) and aphids (primarily cabbage aphids, Brevicoryne brassicae L.) were major insect pests in 1993. Insecticide application was very effective in controlling diamondback moth larvae and adult cabbage seedpod weevils, but only partially effective in controlling aphids. Higher numbers of diamondback moth larvae were observed on mustard species compared to canola species. S. alba was completely resistant to cabbage seedpod weevil and there was no damage due to this pest observed. Aphid colonization was observed on plants from all species, but infestation on S. alba and B. rapa occurred too late to have a major effect on seed yield. Seed oil content of canola species was significantly reduced by insect damage although oil quality (indicated by fatty acid profile) was not affected by insect attack. Uncontrolled insect infestation reduced seed yield of canola species by 37 and 32% in B. napus and B. rapa, respectively. Least yield reduction occurred in S. alba, where average yield reduction from plants in untreated control plots was <10% of insecticide treated plants. S. alba, therefore, has good potential as an alternative crop suitable for northern Idaho because it can be grown with reduced late season insecticide application.

CDC Neela oilseed flax

2014 ◽  
Vol 94 (7) ◽  
pp. 1313-1314 ◽  
Author(s):  
Helen M. Booker ◽  
Gordon G. Rowland ◽  
H. Randy Kutcher ◽  
Khalid Y. Rashid
Keyword(s):  
Seed Yield ◽  
Linum Usitatissimum ◽  
Oil Content ◽  
Oil Quality ◽  
Lodging Resistance ◽  
Linum Usitatissimum L ◽  
Melampsora Lini ◽  
Crop Development ◽  
Moderately Resistant ◽  
High Seed Yield

Booker, H. M., Rowland, G. G., Kutcher, H. R. and Rashid, K. Y. 2014. CDC Neela oilseed flax. Can. J. Plant Sci. 94: 1313–1314. CDC Neela, a medium–late-maturing oilseed flax (Linum usitatissimum L.), was released in 2013 by the Crop Development Centre, University of Saskatchewan, Saskatoon, Saskatchewan. This cultivar has medium oil content, medium oil quality, medium seed size, good lodging resistance, and high seed yield in all soil zones of the Prairies. It is immune to North American races of rust caused by Melampsora lini, and moderately resistant to wilt caused by Fusarium oxysporum f. sp. lini.

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