Comparison of Agronomic Characteristics of Promising Dryland Barley Genotypes with a Conventional Cultıvar in Miyaneh Region (original) (raw)

Medical Siignificance of Some Cultivated Species and Their Investment Acpects in Anbar Province

IRAQI JOURNAL OF DESERT STUDIES

The importance of medicinal plants at the local level has increased in recent times, in both medical and economic terms, and due to the great importance of alternative medicine, it has attracted researchers to study in this area to dispense with chemical treatments and their side effects, this research has dealt with a (Climate, soil, water sources, and vegetation) and human characteristics (population number, age groups and labor force). The second topic dealt with studying the geographical distribution of medicinal plants in Anbar Governorate (desert plants, swamp plants, tree plants, weeds and crops). Furthermore, second chapter studies the appropriate geographical

Habitat conditions and plant-environment relationship in some arid and semiarid lands character plants (case study: Shahriyar Rangelands, Tehran Province)

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In order to obtain an optimum management of natural resources, determination of variables that control plant presence and distribution is needed. In the present research, the relationship between some character plants of drylands and some soil and environmental variables were investigated. After primary survey and selection of main plant species, sampling was done in each vegetation type within 3-4 transects (200 m length) by randomized-systematic method. Dominant species included Tamarix ramosissima, Salsola kali, Phragmites australis and Ephedra distachya. Vegetation sampling was done in 200 plots and soil sampling was done from two depth 0-20 and 20-60 cm in 38 plots. SHAZAM 10 package was used to find the logical relationship between plant species and environmental variables. The statistical pattern for this research was based on qualitative function. Therefore, logic function was

The Study of Genetic Diversity, Heritability and Genetic Advance of Morphological Traits, Yield and Yield Components in Different Chickpea (Cicer arietinum) Genotypes

پژوهشنامه اصلاح گیاهان زراعی, 2018

Chickpea (Cicer arietnum) as the third most important grain legume in the world is not only an important source of feed but it also improve soil fertility by adding nitrogen. This work was aimed to study the variability of morphological trait, to estimate PCV, GCV, heritability, and expected genetic advance of quantitative traits of Chickpea. The genotypes were planted in a randomized complete block design with three replications. PCA analysis showed first four factors Justify almost near to 80 percent variance among studied characters. Cluster analysis with Ward method classified all genotypes in three groups and the highest genetic distance was observed between cluster 2 and cluster 3. It is shown that the number of seed per pod trait has the highest PCV and GCV. The highest heritability was found for number of fertile pod (0.86), seed yield (0.84) and 100-seed weight (0.84) whereas high heritability coupled with high genetic advance was found for biological yield. So biological yield can be the most important criteria for selection parental lines in breeding programs. Also in regard to the highest genetic distance between cluster 2 and cluster 3, genotypes of two clusters could be used for intercrossing to develop improved cultivars.

Investigation of ecological range and its effects on vegetative characteristics of A. sieberi populations in Iran

With respect to wide distribution of A. sieberi Besser in Iran, various studies have been done on its habitats and different ecological properties have been referred as effective factors in establishment of this species. In this research, we tried to study the ecological range of A. sieberi and its relationship with vegetative characteristics. Therefore, climate properties including annual precipitation, number of days with precipitation, annual, minimum and maximum temperature, absolute minimum and maximum temperature; topographic property including altitude; edaphic properties including pH, EC, SP, texture, lime, gypsum, C, Na, K, Ca, Mg, N and P; and vegetative characteristics including large and small diameter of canopy, height of plant and diameter of most thickness branch were measured in 34 populations. For determination of ecological range, normal curve with histogram of frequency have been drawed for total properties. All populations divided in 3 groups by cluster analysis. Measured properties compared by analysis of variance between 3 groups. The significant properties were: average of annual, minimum and maximum temperature, absolute minimum and maximum temperature, large and small diameter of canopy and height of plant in 0.1 % probability level, altitude and C in 1 % probability level, while annual precipitation, number of days with precipitation, N, P and Na in 5 % probability level.

Effect of physiographic position on the suitability of land for Cotton production in some Agricultural projects within Iraqi Mesopotamians

ANBAR JOURNAL OF AGRICULTURAL SCIENCES

The objective of the study was identification the effect of the physiographic position on how suitable the land is for cotton cultivation within Mesopotamian, three Agricultural projects were selected and they are 7 Nessin, North kut and Al-Majar Al-Kabeer within Baghdad, Kut and Messin Provinces respectively, with consideration In the selection, the situation of all projects within Tigris river sediments ecology. Morphological and some soil physical and chemical properties for represented pedons of every secondary physiographic unit within the projects above were studied. The land agro-ecological characteristics which directly affect the land suitability for Barley cultivation were circumscribed, which included Ecoclimatological characteristics, the evaluation of these characteristics was carried out by interconnection between parametric method and limitation method which was suggested by (20), according to the results the lands were classified according to their suitability for barely cultivation

Autecology of Melica persica Kunth. in Khorasan region

Melica persica is a perennial grass from Poaceae family with a partly wide adaptability which makes it an important range plant species, especially for soil conservation. It is native to Iran and mostly grows in Irano-Torani and Hirkani regions. To study autecology of Melica persica, its habitats in Khorasan region were identified and habitat characteristics including climate, topography and soil were investigated in several sites. Afterwards, regeneration, phenology, density, canopy cover, root system and chemical compositon of forage were also studied. The results indicated that distribution of M. persica was partly wide from north to south of khorasan region and especially in rocky foothills (altitude 900-2900 m). It was laso seen in all geographic aspects and a slope of 12-89 percent. M. persica habitats are mainly located in 3 climates of very cold semi-arid, very cold mediterranean and cold semi-arid. Mean annual temperature and precipitation of M. persica habitats differ from 5-15 degrees centigrade and 125-600 mm, respectively. This plant prefers well-drainaged soils of gravelly loam, gravelly silty loam and gravelly sandy loam texture. Optimal pH and EC are 7 to 8 and 0.5-1.5 ds/m respectively. Rocky soils and specially sheil, volcanic and lime stones are the main bed for its establishment. Vegetative growth of this plant starts from mid March and continues to mid May. Depending on altitude, heading stage starts from early May to late May. During late May to early June seeds are at milk stage and seed dissemination happens 20 days later. Results also showed that the effect of seed storage period on seed viability was non-significant. Plant natural regeneration is mainly via seed. Forage chemical composition analysis showed a protein of 21.6 and 8.1 % in vegetative and flowering stages respectively.