M. Abdollahi Noroozi; M.R. Moradi Telavat; S.A. Siadat; A. Khodaei Joghan
Abstract
In order to evaluate the effect of zeolite and vermicompost on Marigold (Calendulaofficinalis L.), a field experiment was conducted in 2017 in the research field of Ramin University, Khuzestan, in split plot as a randomized complete block design with three replications. Vermicompost (0, 3, 6, 9 t ha-1) ...
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In order to evaluate the effect of zeolite and vermicompost on Marigold (Calendulaofficinalis L.), a field experiment was conducted in 2017 in the research field of Ramin University, Khuzestan, in split plot as a randomized complete block design with three replications. Vermicompost (0, 3, 6, 9 t ha-1) and zeolite (0, 4, 8 and 12 t ha-1) were investigated as the main factor and sub plot, respectively. Results of variance analysis showed that vermicompost and zeolite had a significant effect on flower yield, biological yield, harvest Index, chlorophylls and carotenoids of leaves, petal carotenoids, nitrogen removal, phosphorus removal, and index of the intensity of the color of the petals. Also, interaction effects of vermicompost and zeolite was significant on all top-mentioned characteristics. The highest flower yield (69.53 g m-2) was obtained at 3 t vermicompost per ha and 12 t zeolite per ha. Maximum biological yield (474.84 g m-2) was achieved at 9 t vermicompost per ha. The highest leaf and petal carotenoids were recorded at 9 t vermicompost per ha and maximum chlorophyll a and b belonged to 9 t vermicompost per ha and 4 t zeolite per ha. The highest soil nitrogen harvest was obtained at 8 t zeolite per ha. Maximum soil phosphorus harvest belonged to 9 t vermicompost per ha and 12 t zeolite per ha. In total, knowing that zeolite is more cost-effective rather than vermicompost, increasing the amount of zeolite consumption can enhance flower yield. In the current research, the best flower performance could be obtained at an optimum amount of 3 t vermicmpost per ha and 12 t zeolite per ha.
H. Hasanvand; S.A. Siadat; A.M. Bakhshandeh; M.R. Moradi Telavat; A. Poshtdar
Abstract
In order to study the yield and some physiological characteristics of borage (Borago officinalis L.) under different plant densities and sowing dates in Ahwaz city, an experiment was carried out in a split plot arrangement based on randomized complete block design with three replications in Khuzestan ...
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In order to study the yield and some physiological characteristics of borage (Borago officinalis L.) under different plant densities and sowing dates in Ahwaz city, an experiment was carried out in a split plot arrangement based on randomized complete block design with three replications in Khuzestan Ramin Agriculture and Natural Resources University, Iran during 2016-2017. The treatments included sowing date as main plot in five levels (15 October, 5 November, 25 November, 15 December and 5 January) and plant densities as sub-factor in four levels (6, 10, 14 and 18 plant per m2) were considered. The results showed that delayed sowing (5 January) caused anincreased temperature at flowering stage and significantly reduced the grain yield and biological yield (182.22 and 1443.4 kg ha-1, respectively). The sowing dates of 5 November at a density of 10 plants/m2 caused the highest grain yield and oil yield with average values of 1243.82 and 437.47 kg ha-1, respectively. The sowing date of 15 October at a density of 14 plants/m2 caused the highest chlorophyll a and total chlorophyll content with average values of 1.13 and 3.39 mg/g fw, respectively. A delay in sowing date from 15 October to 5 January led to a decreased relative leaf water content, cell membrane stability and chlorophyll content. High plant density per m-2 increased the plant height and biological yield and reduced the oil percentage. Sowing date had significant effects on all traits expect oil percentage.
S. Kiani; S.A. Siadat; M.R. Moradi Telavat; A. Poshtdar
Abstract
The study was carried out to assess the effects of humic acid and irrigation cut on yield, yield component and water use efficiency of three fennel ecotypes (Foeniculum vulgare L.) at the reproductive stages. The study was carried out in Agriculture and Natural Resources Science University of Khuzestan ...
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The study was carried out to assess the effects of humic acid and irrigation cut on yield, yield component and water use efficiency of three fennel ecotypes (Foeniculum vulgare L.) at the reproductive stages. The study was carried out in Agriculture and Natural Resources Science University of Khuzestan in a factorial split plot based on randomized complete block design with three replications during 2016-2017. Irrigation regimes (complete irrigation, irrigation cut from flowering stage, irrigation cut from grain filling stage) and foliar application of humic acid (no application and foliar application of 400 mg.l-1) were placed in main plots by a factorial arrangement, and three ecotypes (Isfahan, Hamadan, Bushehr) were placed in sub plots. The results showed that the highest plant height (157.86 cm) was obtained from complete irrigation and Esfahan ecotype (153.6 cm). The highest number of sub branches (10.14) was obtained by foliar application of humic acid and Esfahan ecotype (10.16). The irrigation cut from flowering stage caused reduced thousand grain weight. The highest umbel per umbrella (24.52), grain yield (1876.95 kg.ha-1) and irrigation efficiency (531.99 grams per cubic meter) were obtained under complete irrigation with foliar application of humic acid. The highest number of umbrella was obtained from Bushehr ectype under complete irrigation conditions. Generally, Bushehr ecotype with complete irrigation and foliar application of humic acid is recommended in terms of higher grain yield, yield components and irrigation efficiency.
