Evaluation, Correlation and Path Coefficient Analysis among Seed Yield and Its Attributes of Oil Flax (Linum usitatissimum L.) Genotypes (original) (raw)
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Proceedings of the Annual International Conference Syiah Kuala University Life Sciences Engineering Chapter, 2011
We studies some best levels of N fertilizer (0 to 150 kgha-1) and cultivation dates on grain yield its related characters and 5 food consumption compositions on 8 Linseed varieties at Yasooj Azad University, Iran, during 2009 and 2010 in field experiments as RBD split-plot designs. As a result, early sowings (14th March) along with moderate-to-high N fertilizer (100-150 kgha-1) led to highest yields. Significant positive associations found between agronomic and biochemical; oil percentage and Linoleic fatty acids. Path coefficients analysis revealed interestingly that Capsule number and primary branch per plant, plant height and 1000-seed weight had the most positive direct effects on seed yield. According to PCA, first two traits, along with height and 1000-seed weight, oleic and Linoleic acids and dry weight had the most contributions, interpreting almost all the variation. Thus, to simultaneous breeding of high oil and yielding flax varieties, capsule number per plant, primary branch per plant, plant height and 1000-seed weight should firstly be considered followed by oleic and Linoleic fatty acids.
African Journal of Agricultural Research, 2011
This study was conducted to estimate the best applications of N levels (0 to 150 kgha-1) and 5 sowing dates, selection criteria and interrelationships of seed yield, yield components and 5 biochemical compositions of 8 linseed cultivars. The experiments were carried out at Yasouj Azad University, Iran, during 2009 and 2010 at a field experiments in RBD split-plot with 4 replications. The results of separate or combined trials indicated that the first sowing date (14th March) along with 100 and 150 kgha-1 of N produced the highest yield and yield components. Moreover, positive associations observed between seed yield with most of the traits or oil percentage and linoleic fatty acids. As expected, significant correlations observed between oil with oleic acid (r = 0.599**) and protein (r = -0.794**) percents. Path analysis in more extent revealed positive direct effects of almost all the traits on yield. Capsule number and primary branch per plant, plant height and 1000-seed weight had the most positive direct effects on seed yield. Biochemically, oleic and linoleic acids had the most effects on seed yield. Conformingly, the principal component analysis (PCA) showed that capsule number and primary branch per plant, plant height and 1000-seed weight, oleic and linoleic acids along with dry weight had the most contributions, interpreting almost all the variation of traits. Indeed, to simultaneously breed of high yielding and oil flax varieties, capsule number per plant, primary branch per plant, plant height and 1000-seed weight should firstly be considered followed by oleic and linoleic fatty acids.
2002
Through analyzing the different sowing dates on flax (Linum usitatissimum L.),belan variety,we examinalion their influence on some productive characteristics depending of the agro ecological ·conditions. The results, which we obtain, shows that the earliest sowing gave much more pods per plant-36,5 compare with 10,7 in the latest date (1998).In 1999 the values are the similar. 43,5 pods per plant in the first and 17,7 pods in the latest period. Absolute weight of the seed was between 7,39 and 11 ,60 in the first and 7,55 and 11.76 g in the second year. The earliest seeding in both years gave the highest seed yield-1885.2 and 1906.7 kg/ha, compare with the latest on the lowest seed yield -1173.5 and 1378.2 kg/ha. The yields on the oil have positive correlation with the yield of the seed
Journal of Natural Fibers
The aim of the study was to determine the impact of selected habitat and agronomic factors on the yield of straw and flax seeds of fibrous flax (Linum usitatissimum L). The research factors were: soil agricultural suitability complex, soil pH, soil type and class, length of the vegetation period, nitrogen fertilization, and forecrop. The effect of the Sielianinov hydrothermal coefficient (K) on the yield of this plant was also studied. The paper presents results from 240 exact experiments with fibrous flax of the Nike variety. The research was carried out over 20 years at 12 experimental stations of COBORU-the Research Center for Cultivar Testing in Słupia Wielka, located in Poland. The research was conducted in the period 1985-2007. Flax straw yields were more dependent on the studied factors than seed yields. The crop of straw was favorably affected by cultivation on soils of the following types: good mountain and rye complex, the rendzina type and on soils of class III a and class III b. Of the forecrop tested-rapeseed was the best, and among the nitrogen fertilization levels, the best was highest dose exceeding 60 kg/ha. The soil pH did not affect the straw yield. The highest seed yield was found on the soil of good rye complex, rendzina type, and class V. However, soil pH, forecrop and level of nitrogen fertilization did not differentiate the level of seed yield. The length of the vegetation period differentiated the level of flax yields. The flax crop was positively affected by a longer vegetation period on the soil of cereal-mountain and good wheat complex, brown type with an acid reaction, where flax was cultivated after rape forecrop and the applied nitrogen dose was up to 40 kg/ha. A significant impact of the weather conditions expressed by the Sielianinov hydrothermal coefficient (K) on straw and seed yields was observed.
Cultivar selection, time of planting and seeding rate is important factors that influence flax growth and yield variables. The objectives of this study were to evaluate the effects of planting date, seeding rate and their interactions on yield and yield components of two flax cultivars. Cultivars, planting date and seeding rate had significant effects on flax yield and yield components. In general, the interaction between planting date and seeding rate and between planting date and cultivar was non significant. Results indicated that, no interaction occurred between cultivar and each of planting date and seeding rate suggesting that planting date and seeding rate affected the cultivars similarly. The two tested cultivars exhibited significant differences for almost traits. The early planting on November 15 was superior to the other two dates on November 30 and December 15 for seed yield and yield components and straw, fiber yield and related traits. Maximum seed, oil,-1-1-1 higher yield of flax cultivars Sakha 1 and Sakha 2. Significant linear relationship between planting dates and each of seed and oil yield provides the clue that these traits are dependent upon planting dates. Linear regression for planting date suggested that increase in one unit (15 days delaying) of-1-1 Regression analysis indicated that seed and fiber yields was positively correlated with seeding rates (r = 0.99 and r= 0.99) and increased linearly when the seeding rates increased from 140 to 180 kg-1-1-1-1
Yield development of flax varieties and lines within variable environment in Latvia
Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference, 2015
Flax is the multiple purpose crop cultivated in temperate region. Seeds of oil flax recently became important constituent for many industrial applications, such as pharmacy, medicine, food production etc. and have high prospective for use in Latvia. Understanding the underlying processes that limit seed yield in flax is major with respect to enhancing the breeding of flax for yield improvements. The aim of study was evaluated 29 flax varieties and lines (including 20 Latvian origins) plasticity of seed yield production in changeable environmental conditions. The experiment was carried out in the Agricultural Scientific Centre of Latgale on field trials over the period 2010-2013. According to 4 years results was to establish the nature of relation between seed yield and hydrothermal coefficient (HTC), and seed yield and another yield components of flax. Apart from the changing conditions highest seed yield were produced from a varieties 'Lirina' (2.54 h-1 t), high seed oil content from variety 'Amon' (53.03%). Positive and significant relationships were found between seed yield and HTC 'T30-28-6-94'(r=+0.98*), 'German Serenade' (r=+0.95*) and 'Scorpion' (r =+0.95*).
Agronomic Assessment of Fibrous Flax and Linseed Advanced Breeding Lines as Potential New Varieties
Agronomy
The aim of the study was to determine the breeding value of advanced lines of fibrous flax and oilseed flax (linseed) on the basis of comparative experiments with reference varieties. In field experiments conducted in 2019–2020, the HDH line of fibrous flax and the R26 linseed line were assessed in terms of significant phenotypic traits and also traits affecting the yield structure. Due to the fundamentally different weather conditions in the growing seasons of 2019 and 2020, it was also possible to determine the susceptibility of the studied genotypes of flax to climatic stress factors. The obtained results showed the high breeding value of the HDH line as a potential new variety of fibrous flax. The R26 line did not exceed the reference varieties in terms of the traits essential for the oily form of the cultivated flax cultivars, but it was characterized by a favorable morphological and yield-forming structure for dual purpose varieties. Moreover, both assessed lines showed high r...
Biological determinants of plant and crop productivity of flax (Linum usitatissimum L.)
Acta Agrobotanica, 2012
In Poland the cultivation of the fibrous form of flax (Linum usitatissimum L.) is dying out, but the acreage of its oilseed form, linseed, which provides seed (Semen lini) used in therapy and being a source of -linolenic acid, is expanding. Nowadays, linseed is grown in 64 countries of the world, but yield levels in these countries vary greatly. Under European conditions, seed yield of linseed shows high variation, which is evidence of little knowledge of the biology of this plant and the lack of precise cultivation solutions in agricultural technologies used. A major reason is the difficulty in obtaining optimal crop density. A sparse crop results in low above-ground biomass yield, which is translated into insufficient crop yields. The selection of highly productive domestic and foreign varieties can partially increase linseed yield; apart from some domestic varieties, the Canadian cultivar 'Flanders' and the Hungarian cultivar 'Barbara' are positive examples in thi...
The Evaluation of Yield and Agronomic Traits of Flax Genotypes Under Latvian Conditions
Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference
This study aim was evaluated of flax genotypes regarding productivity, resistance to lodging and diseases as well as yield dependence relationships among phenotypic and quality traits. The 14 fibre flax genotypes were evaluated in field conditions on the background of natural infection from 2014 to 2018 for agronomically important traits and from 2015 to 2018 for occurrence diseases of flax. The data were recorded for the 15 following agronomic traits, such days to flowering, days to early yellow ripening stage, total plant height, technical height, stem yield, fibre content, 1000 seed weight, vessels per plant, harvest index, seed yield, oil content, resistance to lodging and fungal diseases during early yellow ripening stage. Genotypic and phenotypic correlations between yield and yield components were identified that total plant height, technical height and days to early yellow ripening stage played a major role on stem yield as well vessels per plant and harvest index on seed yi...