Abstract
A field trials was carried out during winter season of 2017-2018 and 2018-2019 at Field Crops Department - College of Agricultural Engineering Sciences - University of Baghdad / Jadriyah to study the effect of organic fertilizers of plant source (compost) on yield and it's components of linseed cultivars. Randomized complete block design (RCBD) arranged according to split plots used with three replicates. The trials included four weed sources organic fertilizer {Malva rotundifolia L., Eichhronia crassipes (Mart) Solms, Glycyrrhiza glabara L. and Silybum marianum L.} and NPK chemical fertilizer (90 Kg N ha-1, 120 Kg P ha-1 and 80 Kg K ha-1) in addition to control treatment (without fertilizer) within main plots and three linseed cultivars (Syrian, Egyptian and Iraqi local) within sub plots. The results showed that the Syrian cv. produced the highest number of capsules 106.67 and 103.75 capsule plant-1, number of seeds 8.03 and 8.33 seed capsule-1, seed yield 1.03 and 1.12 mton ha-1, biological yield 4.24 and 4.50 mton ha-1 and harvest index 24.21 and 24.82%, while the Egyptian cv. gave highest means of 1000 seeds weight 6.73 and 7.22 g for the two seasons, respectively. The fertilizer treatments significantly affected on the all studied characters. The plant at the NPK treatment produced the highest number of capsules 105.48 and 99.74 capsule plant-1, number of seeds 7.89 and 7.95 seed capsule-1 without significant differences on the G. glabara L. treatment which was superior in the seed yield 1.04 and 1.03 mton ha-1, biological yield 4.18 and 4.32 mton ha-1 and harvest index 24.57 and 23.65% without significant differences with NPK treatment for the two seasons, respectively. The interaction between the two factors had significant effect on all characters except 1000 seeds weight at first season.
Highlights
Linseed Linum usitatissimum L. a dual purpose industrial crop, grown at different parts of the world to obtain fiber and oil
The cultivation of this crop in Iraq suffers from several problems, including limited cultivars suitable for environmental conditions, which led to the dependence of agriculture on the experimental scale on the local cultivar, this requires the study of other cultivars with the local cultivar taking advantage of the genetic variation of these cultivars and their interaction with environmental conditions to reach the best environmentally adapted cultivars
The aims of this research are to study the effect of organic fertilizers of plant source on yield and it's components of linseed cultivars
Summary
Linseed Linum usitatissimum L. a dual purpose industrial crop, grown at different parts of the world to obtain fiber and oil. Linseed seeds contain a high percentage of oil ranging from 30-45% with high quality and medicinal importance, due to its unsaturated fatty acids such as oleic, linoleic and linolenic [18]. The cultivation of this crop in Iraq suffers from several problems, including limited cultivars suitable for environmental conditions, which led to the dependence of agriculture on the experimental scale on the local cultivar, this requires the study of other cultivars with the local cultivar taking advantage of the genetic variation of these cultivars and their interaction with environmental conditions to reach the best environmentally adapted cultivars. The aims of this research are to study the effect of organic fertilizers of plant source (compost) on yield and it's components of linseed cultivars
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