Hamid Jabbari; Farid Golzardi; Farnaz Shariati; Hormoz Asadi
Abstract
In order to evaluate the quantity and quality of safflower cultivars forage in three forage harvesting times based on plant phenological stages, the present study has been conducted in a randomized complete block design with split-plot in time arrangements with three replications at the Seed and Plant ...
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In order to evaluate the quantity and quality of safflower cultivars forage in three forage harvesting times based on plant phenological stages, the present study has been conducted in a randomized complete block design with split-plot in time arrangements with three replications at the Seed and Plant Improvement Institute (SPII), Karaj, Iran, during 2018-2019 and 2019-2020 cropping seasons. The main factor includes three safflower cultivars (Goldasht, Golmehr, and Parnian), with three forage harvesting time (namely stem elongation, branching, and flowering stages) considered as the sub-factor. The effect of year only on plant height and water-soluble carbohydrates (WSC) has been significant (P≤0.05). The results show that the interaction effect of cultivar × harvesting time on the fresh forage yield, plant height, WSC, and neutral detergent fiber (NDF) has been significant (P≤0.01). The highest fresh forage yield (52103 kg ha-1) is obtained by harvesting the Golmehr cultivar at the beginning of flowering; however, the highest dry matter yield is observed in Golmehr and Parnian cultivars. The highest dry matter yield has been observed in the branching stage (11900 kg ha-1), with the crude protein content in this stage being 14.57%. In contrast, the maximum crude protein content is observed in the flowering stage (19.22%), even though the mean dry matter yield at this stage has been 9937 kg ha-1. The maximum and minimum RFV (130.3% and 92.3%) are recorded in the forage of Goldasht and Golmehr cultivars, respectively. Therefore, among the studied cultivars, Parnian, and among the growth stages, forage harvesting at the branching stage is introduced as the superior treatment to achieve maximum yield and quality of safflower forage.
Hadi asadpour; Saeid Hazrati; Amir reza Sadeghi-Bakhtvari; Bahman Pasban Eslam
Abstract
Arbuscular mycorrhiza fungi (AMF) reduce the effects of drought stress by altering some root properties and absorbing nutrients and water in plants. In order to evaluate the effect of AMF on some characteristics of spring safflower (Carthamus tinctorius L.-cv. Sofeh) under water-deficit condition, this ...
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Arbuscular mycorrhiza fungi (AMF) reduce the effects of drought stress by altering some root properties and absorbing nutrients and water in plants. In order to evaluate the effect of AMF on some characteristics of spring safflower (Carthamus tinctorius L.-cv. Sofeh) under water-deficit condition, this experiment has been carried out at research farm of the Azarbaijan Shahid Madani University, Tabriz in 2018. The experiment is done as a split plot in a completely randomized blocks design with three replications. The results show that the highest petal yield under non-water stress is 281.6 kg/ha and the lowest stress from flowering stage to 197.3 kg/ha. In the control, the highest content of seed oil is 30.65% related to the seed inoculated with AMF. The highest oil yield is obtained from the condition without stress with 1098.9 kg/ha, also in seed inoculated with fungus of 1107.8 kg/ha. The highest seed yield (4884.4 kg/ha) is obtained in the condition without water stress and inoculation of seeds and soil with AMF. In general, water stress leads to reduced yield and inoculation with AMF, especially inoculation of seeds and soil, yield of plants under water stress due to the positive effect on growth improve nutrition and water uptake. Plants inoculated with AMF display improved growth, yield and oil content under water stress conditions than non-inoculated plants.
mahmoodreza saeidi; YaghoubY Raei; Rouhollah Amini; Bahman Pasban Eslam; Asal Rohi Saralan
Abstract
This research was investigated to study the application of chemical and biofertilizers on growth, yield and fatty acids composition of safflower intercropped with faba bean based on a randomized complete block design with three replications at the Research Farm of University of Tabriz during two growing ...
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This research was investigated to study the application of chemical and biofertilizers on growth, yield and fatty acids composition of safflower intercropped with faba bean based on a randomized complete block design with three replications at the Research Farm of University of Tabriz during two growing seasons of 2014-2015 and 2015-2016. Intercropping ratios of safflower and faba bean including 1:1, 2:1, and their sole cropping and four levels of fertilizers including no fertilizer, 100 percent chemical fertilizer, 30 percent and 60 percent chemical fertilizer + biofertilizer (Azoto barvar 1 and phosphate barvar 2) were evaluated. Results showed that the highest Chlorophyll content, plant height and number of branch per plant were devoted to safflower/faba bean intercropping (1:1) with application of 60 percent chemical plus biological fertilizers. Also, integrated use of chemical and biological fertilizers caused the increasing of seed yield, oil content (33.81 percent) and linoleic (76.97 percent) and linolenic (0.32 percent) fatty acids. The highest land equivalent ratio (1.41) was achieved in intercropped plants (1:1) with integrated use of 60 percent chemical and biological fertilizers. For both years, total actual yield loss for all intercrops was more than zero, which indicates the positive advantage of intercropping over the pure one. Overall, intercropping (safflower/faba bean) with integrated use of the chemical and biological fertilizers, can recommend as an appropriate manner for the production of safflower with a better quality and quantity.
Hamid Bagheri; Babak Andalibi; Mohammad Reza Azimi moghaddam
Abstract
In order to possibility of improving physiological traits, yield and yield components of safflower (Carthamus tinctorius cv. sina) by anti-transpiration application in rainfed condition, a research was carried out in factorial based on randomized complete block design (RCDB) with three replications in ...
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In order to possibility of improving physiological traits, yield and yield components of safflower (Carthamus tinctorius cv. sina) by anti-transpiration application in rainfed condition, a research was carried out in factorial based on randomized complete block design (RCDB) with three replications in Miyaneh region (East Azarbaijan province - Iran) in 2011. The treatments antitranspirant rate were zero (control), 80, 120 and 160 g a.i.ha-1. The antitranspirant application time was at elongation, flowering and seed filling stages. The results showed that there were significant differences between treatments in all studied traits. Applying atrazine at 80 and 120 g a.i.ha-1 specially in flowering stage by providing plant favorite conditions such as reducing canopy temperature, increasing photosynthesis and chlorophyll content, improved yield and yield components comparing to rainfed stressed condition. Applying atrazine at 160 g a.i.ha-1 did not improve growth but acted as a growth inhibitor. The highest and lowest number of prolific capitol, number of seed in capitol and also grain yield were obtained at 120 g a.i.ha-1 in flowering time and 160 g a.i.ha-1 in elongation time, respectively.