Kourosh Behnamfar; Farhang Ghasriani; Mohammad Fayaz; Rajabali Mohamadi
Volume 28, Issue 2 , June 2021, , Pages 222-237
Abstract
Cymbopogon olivieri is a perennial grass in tropical regions. This species has very high compatibility in the rangelands of Khuzestan province by benefiting from type C4 photosynthesis. This species is specific to warm areas. The variation in the habitats of this species causes differences in phenotypes ...
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Cymbopogon olivieri is a perennial grass in tropical regions. This species has very high compatibility in the rangelands of Khuzestan province by benefiting from type C4 photosynthesis. This species is specific to warm areas. The variation in the habitats of this species causes differences in phenotypes and forage yield of its populations. In order to evaluate the populations of Cymbopogon olivieri species, at first, the addresses of herbarium were studied, and its habitats in Khuzestan province were identified by field surveys. Then, at the appropriate time, the seeds of seven identified populations were harvested from different habitats of the province and were planted in the Baghmalek research station and evaluated for three years (2011-2014) after establishment. To measure the traits from each population, at the stage of spike emergence, aerial parts of plants were harvested in three plots of 3 m2 from a height of 5 cm above the ground. After counting the number of tillers and plant height, they were dried and weighed in an oven at 70 ° C for 48 hours to determine dry forage yield, aerial parts. There was a significant difference between the studied populations for dry forage yield, plant height, and the number of tillers. The highest forage yield of Cymbopogan olivieri in the third year after the establishment of populations collected from Dezful-Dez Dam, Masjed Soleiman-Bardemar and Ahvaz-Masjed Soleiman route with a production of about 110 g dry m-2 and then Shushtar -Abgah, and Dezful- Shahion with a production of about 100 g dry m-2 respectively. In terms of plant height, populations related to Dezful-Dez Dam, Shushtar-Abgah, and Dezful-Sardasht-Gavmir with a longitudinal growth of more than 50 cm were statistically superior. In terms of mean tiller number per plant, the Dezful-Dez dam population with 125 tillers had the highest and the Ahwaz-Masjed Soleiman route population with an average of 69 tillers had the lowest tiller number per plant.
Majid Dashti; Mohammad Fayaz; Gholamreza Hosseini Bamrood
Volume 27, Issue 4 , December 2020, , Pages 802-812
Abstract
In order to determine the appropriate season and method of rangeland planting of Onobrychis chorassanica Bunge., and providing conditions for increasing forage production of degraded rangelands in arid and semi-arid climates, two separate experiments were carried out in split plots in a randomized complete ...
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In order to determine the appropriate season and method of rangeland planting of Onobrychis chorassanica Bunge., and providing conditions for increasing forage production of degraded rangelands in arid and semi-arid climates, two separate experiments were carried out in split plots in a randomized complete block design with four replications during the years 2013 to 2017 in Golestan preserved summer rangeland of Mashhad on the northern slope of the Binalood Mountains. The treatments were rangeland planting seasons (autumn and spring) and planting methods (seeding in pitting and in shallow grooves). In the first experiment, the mean comparisons of the combined analysis for two years showed that the emergence and seedlings establishments were 57.7% and 26.1%, in 2014-2015 growth season, respectively, were significantly higher than the 2013-2014 (21.5% and 10.4%). Results also indicated that the emergence and seedlings establishment percentage (58.8% and 26.8%) in the autumn season showed significant differences with spring (20.4% and 9.7%). Mean comparisons of rangeland planting methods had no significant difference in both growing seasons. The results of the second experiment showed that the seedlings establishment percentage (22.1%) in the 2nd year of establishment was significantly lower than (26.1%) comparing with the first year. Although establishment percentage in autumn season was increased by 2.7 times compared with spring season, but planting dates had no significant effect on leaves, stem and fruit dry matter yield. The planting method with pitting led to a significant increase in leaves, stem, fruit and total areal biomass yield with 2.2, 4.8, 4.2 and 11.2 gr plant -1, respectively, by 58, 33, 14 and 26%, compared to shallow groove planting method. The results of this study showed that autumn rangeland season is preferable to spring but seeding in shallow grooves compared to pitting is not significantly different in increasing the percentage of emergence and seedling establishment. However, seeding in pitting leads to improved forage and seed yield and ultimately production stability.
Kourosh Behnamfar; Farhang Ghasriani; Mohammad Fayaz; Rajab ali Mohamadi
Volume 27, Issue 2 , June 2020, , Pages 238-247
Abstract
Perennial forage grasses are the most important range species in tropical regions. Cenchrus ciliaris is one of the forage perennial grasses with the C4 photosynthesis type, which is specific to tropical regions and has very high adaptability to the rangelands of Khuzestan province. Diversity in such ...
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Perennial forage grasses are the most important range species in tropical regions. Cenchrus ciliaris is one of the forage perennial grasses with the C4 photosynthesis type, which is specific to tropical regions and has very high adaptability to the rangelands of Khuzestan province. Diversity in such habitats has led to differences in phenotype and yield of ecotype. To implement this project, the habitats were first determined by examining the herbarium addresses and field observations of Cenchrus in Khuzestan province. Subsequently, at the appropriate time, the seeds were harvested from 13 habitats identified in the province and cultivated in the research station Baghmalek and evaluated for three years after the establishment. Results indicated that there was a significant difference between the populations for dry forage yield, plant height, and tiller number. The highest forage yield, the number of tillers, and the height of plant belonged to Cenchrus ciliaris, collected from Shushtar – Cham-Konar with an average of 220 g of dry forage/m2, 130 tillers in the plant, and 55 cm height in the third year after establishment. Among the studied accessions, apparent differences were observed in the vegetative form, so that the population of the Shushtar-Chamknar was erect completely, while, the population of the Behbahan was quite wide on the ground.
Mohammad taghi Zare; Mohammad Fayaz; sedighe zarekia; Naser Baghestani Meybodi; Mohammad Abolghasemi
Volume 27, Issue 1 , April 2020, , Pages 24-35
Abstract
Rainfall storage with plant species planting is used for rehabilitation and improvement of rangelands, especially in arid areas. In this study the effect of rainfall storage treatments furrow, pitting and crescent pond on the establishment of Ferula tabasensis in Kalmand Bahadoran area of Yazd province ...
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Rainfall storage with plant species planting is used for rehabilitation and improvement of rangelands, especially in arid areas. In this study the effect of rainfall storage treatments furrow, pitting and crescent pond on the establishment of Ferula tabasensis in Kalmand Bahadoran area of Yazd province was evaluated. This area is one of the habitats of the species studied. Seeds were planted at two season, early fall as autumn sowing and late winter as spring sowing. The research was a split plot design, based on randomized complete blocks with three replications. The main plot was planting time (spring and autumn) and sub plot was planting method (farrow, pitting and crescent pond). The seeds were planted in 2013 and 2014. The results showed that seed emergence rate in autumn were significantly higher than spring planting. Among the planting methods, the impact of the crescent pond method was slightly more than the other two methods. In general, planting methods caused more than 50% seed emergence. Although some of these seedlings were destroyed for various reasons, however, the establishment of about 30% of seedlings shows that the methods of rainwater harvesting in the establishment of cultivated plants have had a positive effect.
Hosein Zeinali; Mohammad Fayaz; Leyli Safaei
Volume 27, Issue 1 , April 2020, , Pages 125-133
Abstract
Abstract
The aim of this study was to investigate the best planting time and method of A. podolobus. The experiment was conducted as a split plot design based on a completely randomized block design with three replications at Hana Semirom station, Isfahan Agricultural and Natural ...
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Abstract
The aim of this study was to investigate the best planting time and method of A. podolobus. The experiment was conducted as a split plot design based on a completely randomized block design with three replications at Hana Semirom station, Isfahan Agricultural and Natural Resources Research Center during 2013 to 2015. Main factor was sowing date (fall and spring) and sub plot was sowing method (linear seeding and crescent shaped bounds). The results showed a significant effect of planting time, planting method, and its interactions on the percentage of establishment. The percentage of establishment of fall cultivation was 14.28% and spring planting was 27.78%. The lowest percentage of establishment was observed with 6.35% in sowing method and the highest with 35.71% in crescent banquet method. The interaction of this trait showed that the lowest percentage of establishment was observed in spring cultivation treatment and seeding method (4.76%) and the highest percentage was observed in crescent and spring cultivation methods (47.61%). The results indicated that crescent-shaped bounds were more appropriate in both spring and fall cultivation. Forage yield was strongly affected by the planting season and in fall and spring cultivation and were 7 and 15.6 grams per plant, respectively. Forage yield was 9.5 g in seeding method and 13.16 g in crescent bounds. The range of changes in this trait ranged from 6 g in fall cultivation and seeding method to 18.33 g per plant in spring cultivation and crescent bounds method. In general, the results showed that for planting this species in semi-steppe areas, spring planting in the form of crescent bounds and non-coating seeds is suitable for maximum establishment
Mohammad Zadbar; Somayyeh Naseri; Mohammad Fayaz
Volume 23, Issue 4 , March 2017, , Pages 744-759
Abstract
Environmental factors including rainfall are the factors affecting palatability of plants and consequently the preference value for animals. In this study, the preference value of plants was determined in Sarakhs (winter rangeland at North-East of Khorassan province) by timing method during 2007 to 2010 ...
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Environmental factors including rainfall are the factors affecting palatability of plants and consequently the preference value for animals. In this study, the preference value of plants was determined in Sarakhs (winter rangeland at North-East of Khorassan province) by timing method during 2007 to 2010 for the two first months of growing season (March and April).The results showed that Artemisia diffiusa, Carex physioides and Poa bulbosa were grazed in all four years by livestock, indicating that these species were more palatable. The preference value of the species differed between drought and normal years.According to the obtained results,a high correlation was found between the grazing time of Poa bulbosa and pervious rainfalls.Also, a significant relationship was found between the grazing time of Carex physioides in March and the rainfall of autumn, January and total rainfall of February and March.A significant correlation was also found between the grazing time of Artemisia diffusa in March, and the rainfall of January, total rainfall of autumn and December, and total rainfall of autumn, January, and February. This research was aimed to determine the seasonal and annual forage preference value with regard to the rainfall fluctuations in Sarakhs rangelands.
Mehdi Moameri; Mohamad Fayaz; Masoume Abbasi Khalaki; Ziaaddin Almasi
Volume 23, Issue 1 , June 2016, , Pages 1-13
Abstract
This study was conducted in northern Khorasan province to investigate the indigenous knowledge of herders about livestock grazing management. In this study, the statistical population included herders and elderly people who use the rangelands traditionally. In each tribe or village, three people were ...
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This study was conducted in northern Khorasan province to investigate the indigenous knowledge of herders about livestock grazing management. In this study, the statistical population included herders and elderly people who use the rangelands traditionally. In each tribe or village, three people were selected to do interview and complete the questionnaires. Data collection was conducted using interviews and questionnaires, as well as observing the herders' activities in the field. The Likert scale was used for scoring and quantitative evaluation of questions for the study species. Our results confirmed the wide knowledge of herders used in different aspects of livestock grazing management including livestock distribution and uniform utilization of rangeland, night grazing, selecting the resting and grazing place for livestock, segmentation of rangeland with traditional methods, and ensuring the safety of drinking water for livestock. On the other hand, results showed that, actually, herders paid little attention to observing livestock grazing capacity and preventing or reducing selective grazing.
Naser Baghestani Mebodi; Mohammad Taghi Zare; Mohammad Fayyaz
Volume 20, Issue 4 , March 2014, , Pages 809-818
Mohammadreza Shooshtari; Hooshmand Safari; Mohammad Fayyaz; Morteza Akbarzadeh; Saeedeh Nateghi
Volume 20, Issue 3 , November 2013, , Pages 570-583
Mohammad Ali Alizadeh; Mohammad Fayyaz
Volume 20, Issue 2 , June 2013, , Pages 358-368
Farideh Saghafi Khadem; Mohammad Fayyaz; Somayeh Naseri
Volume 20, Issue 2 , June 2013, , Pages 369-378
Mohammad fayaz
Volume 9, Issue 1 , July 2002, , Pages 31-46