Mahdi Alizadeh

• Associated professor
• Gorgan University of Agricultural Sciences and Natural Resources

Grape is one of the most important and ancient fruits in the world that have been used by humans. the aim of this study was to investigate the effect of post-harvest application of putrescine and spermidine polyamines on maintaining the quantitative and qualitative characteristics of ‘Shahroudi’ grapes during storage. Factorial experiment with two...

Birch (Betula sp) species is too important because of little regeneration in mountain cliff region, medicinal, industrial and ornamental function. Betula litwinowii is one of two tree species Birch in Iran that is endangered and grown in Sangdeh of Sari County. In this study, leaf explants after sterilized by applying different treatments (HgCl2...

Abstract 1 Birch (Betula sp.) is considered as a survivor of Caspian primary forests and one of the extinct forest trees in Iran. In our country, Birch species is endangered because of limited distribution range, unfavourable habitat conditions, lack of regeneration in natural habitat and inability to reproduce sexually in natural condition. T...

Birch (Betula sp.) is considered as extinction species and its natural regeneration in Iranian forests is very slow. Difficulties in regeneration as well as natural seed germination of birch tree besides high levels of seed contaminations have justified the application in vitro culture with respect to its conservation and genetic improvement. H...

Mulberry is a multipurpose tree in horticulture. Besides nutritional importance, it is used for raising silkworms, fodder and landscape. These is quite a wide genetic diversity among different mulberry genotypes. The present study was undertaken to evaluate certain morphological and biochemical properties of 20 genotypes of Morus alba, M. rubra, an...

The growth and morphogenesis responses of cultured cell and plant tissues can be improved by addition of small amounts of some organic materials like plant sprout powders (PSP). A preliminary experiment was undertaken to examine the response of raspberry plantlets to media enriched with plant sprout powders derived from wheat, vetch and alfalfa pla...

The results clearly showed diverse differences among cultivars. The highest fruit weight, length, width, aril weight, aril diameter, aril fresh/dry weights, skin fresh/dry weights were found in “Gavkoshak”. The highest calyx length and skin thickness were recorded in “Galookandeh”. The “Torsh Oud”, “Faroogh”, “Galookandeh” and “Rubab” were de...

The objectives of this study were to determine whether bud pruning severity impacts some pomological traits of white and red varieties of table grapes. Vine canes were pruned to 3 or 6 buds in 12-year-old vines in conventional systems. Results revealed that number of bunches, bunch weight, bunch width, number of shot berries, and berries per bunch...

Crop growth and yield are functions of environmental factors. One of these factors is salt stress which can have harmful effects on plants. Olive is one of the most important Mediterranean plants and is moderately salt tolerant. Various mechanisms have been proposed to regulate plant adaptation and tolerance to salinity stress. Plants are more sens...

Grapevine (Vitis vinifera L.) is one of the most extensively grown fruit crops in the world owing to its versatile uses. Traditional breeding in grapevine is highly challenging owing to its long juvenile phase, higher heterozygosity, linkage drag, stenospermocarpic or parthenocarpic fruits etc. However, ever growing demand owing to its versatile us...

Eremurus spectabilis M. Bieb, a perennial herbaceous wild species, is commonly used in the horticultural, ornamental, and pharmaceutical markets. Studies on the tissue culture systems for this species would be beneficial for mass multiplication as well as for future breeding programs. An in vitro propagation technique was established here using tub...

Eremurus spectabilis is a new, commercially valuable specialty cut flower, but little is known about the applicable treatments to extend the vase-life and maintaining the ornamental quality of this flower. Therefore, the present study was aimed at investigating the impacts of nano-silver, essential oils, and chemical treatments on keeping ornamenta...

A thorough understanding of plant behavior at different growth stages is of paramount importance for fruit quality improvement, the regulation of production periods, and reduced fruit production costs. There are as many as three waves of flowering in evergreen pomegranate cultivars – i.e., during the spring, rainy, and autumn seasons. However, for...

A micropropagation method was described for bottlebrush (Callistemon viminalis) using single node explants under in vitro conditions. This method provided a rapid, reliable, repeatable mass propagation method. Multiple shoots were induced from axillary buds on Murashige and Skoog (MS) and Anderson's Rhododendron Medium (ARM) media containing differ...

The present investigation was undertaken to assess the genetic diversity in gamma rays irradiated mutants of four grape genotypes based on RAPD and SSR markers. There were 36 mutants selected from in vitro mutated four grape genotypes, namely Pusa Navrang, H-76-1, Pearl of Csaba and Julesky Muscat on the basis of morpho-physiological and biochemica...

Fruit Maturity, Harvest Methods and Technologies

p>Single node segments were used to initiate in vitro cultures in two grape rootstocks namely, Dogridge ( Vitis champini ) and H-144 ( Vitis vinifera × V. labrusca ). Culture establishment was enhanced using different growth regulators, while BAP was found essential for culture initiation in both genotypes. Less success (38.31%) was obtained in cul...

Propagation of European hazelnut by seed is influenced by some seed treatments. In this investigation, effect of stratification period and some chemicals on seeds of four hazelnut cultivars were studied. GA 3 and four months of stratification, each individually resulted in the highest germination percentage at 82.73% and 83.75%, respectively. There...

Micropropagation in nine Vitis rootstocks using nodal segments was studied. Optimum in vitro culture establishment was highest on Murashige and Skoog (1962) medium (MS) with 3.0 mgl-1 BAP + 0.25 mgl-1 NAA. Rootstock 110 R gave the earliest bud sprouting (4.03 days), whereas, 1616 C and 110 R gave the highest culture establishment (71.11 & 69.67%)....

The advancements made in tissue culture techniques has made it possible to regenerate various horticultural species in vitro as micropropagation protocols for commercial scale multiplication are available for a wide range of crops. Clonal propagation and preservation of elite genotypes, selected for their superior characteristics, require high degr...

Abstract: The growth and morphogenesis of cultured plant tissues can be improved by small amounts of some organic elements. In addition to being a natural source of carbon, organic additives may contain natural vitamins, phenols, fiber, hormones and also proteins. Hence, the physiological effects of apricot gum on the regeneration capacity and grow...

Background and objectives: Lemon balm is a medicinal herb that its essential oil has wide range of applications in the pharmaceutical, health and food industries. It also contains rosmarinic acid (RA) which is presently utilized against HIV1 viruses and treatment of AIDS disease. In this research, the effects of organic fertilizers (cattle and shee...

The olive fruit consists of two main tissues: flesh or mesocarp and stone. The stone itself contain the woody endocarp and seed. This study is aimed to investigate the effect of fruit growing stages on morphological characteristics and oil accumulation in different fruit tissues of olive cultivar Koroneiki. The fruits were harvested in six ripening...

This study was conducted to find the effects of fruit ripening and extraction method on the quantity and quality of the Koroneiki olive oil. The oil samples extracted in six ripening stages were used for further quality analysis. Quality assessment of the oil was conducted according to the standard methods and the composition of fatty acids was mea...

Introduction: Green pruning or summer pruning completes winter pruning, and it is conducted during the growing season. The purpose of green pruning is to maximize yield of high quality grapes. Green pruning in fruit trees improves light penetration and increases the quality of fruits. The objectives of this research were to determine the influence...

Effect of Hydrogen syanamid on germination of pistachio

Seed germination is considered an important phenological stage of plant growth during which the viable, nondormant embryos develop into seedlings under favorable conditions. Currently, various seed priming treatments may be used to enhance germination values (germination percentage, Lag phase, time to reach 50% germination) and breaking dormancy; g...

With the advancements made in plant tissue culture techniques, it has now become possible to regenerate various horticultural species in vitro as micropropagation protocols for commercial scale multiplication are available for a wide range of crops. Clonal propagation and preservation of elite genotypes, selected for their superior characteristics,...

Micro-propagation is a way of proliferation that has very advantages, but this method also has problems such as high cost of production. Bottlebrush (Callistemon sp.) is an attractive and popular ornamental shrub that micro-propagation of bottlebrush also is no exception to this. In the present study, the mass multiplication of bottlebrush through...

The current experiment was carried out to study the effect of several media including sand, sand+cocopeat, sand+perlite, cocopeat+perlite and sand+cocopeat+perlite on rooting quality of stem cuttings in weeping bottlebrush plant (Callistemon viminalis). The study was done during the late August of 2010. Statistical design was completely randomized...

The influence of two grafting techniques on the success of stenting (simultaneous cutting and grafting) and some ensuing growth parameters of stentlings were studied under glasshouse conditions. The Avalanch and Peach Avalanch glasshouse rose varieties were utilized as scion and grafted on R. manetti as rootstock. Two grafting techniques namely, sp...

The effects of foliar application of soybean and corn oils during full bloom and two weeks later on yield, yield components and fruit juice quality of grapevine (Vitis vinifera L.) cv. 'Keshmeshi' were studied. The results showed that the application of vegetable oils decreased the berry number and increased berry length, berry weight and soluble s...

An in vitro experiment was conducted to achieve arbuscular mycorrhizal fungus (AMF) root colonization in micro-propagated grape rootstocks Salt Creek (Vitis champini) and Male hybrid (Vitis vinifera) during acclimatization and also to study the effect of AMF on alleviating salt-stress. The plantlets were grown in potting medium containing peat: ver...

Current research was performed with the goal of investigating latest vegetative propagation method dogrose (Rosa canina), which mainly used as rootstock for hybrid tea scion varieties. A mixture of cocopeat and perlite was found effective for rooting stem cuttings having a size of 10 cm and with two leaves. Treatment of graft portion with 5000 ppm...

Poor rooting response is a major obstacle in micropropagation as well as conventional plant propagation. Researchers and nurserymen are looking for simple applicable methods to improve root induction in difficult to root species. Bottlebrush (Callistemon sp.) is an attractive and popular ornamental shrub with certain rooting difficulty in some spec...

Secondary phenolic metabolites play an important role in plant defense mechanisms and most of them are known to be valuable in human health. There are only few studies related to the significant role of various mycorrhizal fungi on changes taking place in their host secondary metabolites. Furthermore, grapevine pruning wastes were known as a potent...

There is a great demand for table grape saplings, mainly for commercial varieties indicating that micropropagation could be an effective method for their mass propagation. Internal contamination in woody plant species is an important problematic issue and arbuscular mycorrhizal fungi (AMF) have been known as potential plant biological protectors. I...

An investigation was undertaken to adjudge the in vitro salt tolerance and biochemical changes due to NaCl on four grape rootstocks (Dogridge, SO4, H-144 and 3309C). The in vitro two-node micro-cuttings from the established cultures were sub-cultured on rooting medium comprising Murashige and Skoog (MS) basal medium supplemented with 0.5 μM indoleb...

The magnitude of demand for planting materials in grape, mainly for rootstock genotypes indicates that micropropagation is inevitably necessary for their mass scale propagation. Therefore, the studies on micropropagation of four genetically different grape rootstocks namely Dogridge (Vitis champini), SO4 (V. riparia× V. berlandieri), H-144 (V. vini...

The Arbuscular Mycorrhizal (AM) association is being considered as the commonest Mycorrhizal type involved in grape community. Low population density of these useful fungi in vineyard soil suggests the need for manual inoculation of grapevine plantlets at the nursery stage. The influence of three commercial Arbuscular Mycorrhizal fungi strains (Glo...

Micropropagated plantlets derived from three different grape rootstock genotypes namely, Dogridge (Vitis champini), SO4 (V. berlandieri×V. rupestris) and ARI-H-144 (V. vinifera×V. labrusca) were subjected to randomly amplified polymorphic DNA (RAPD) and inter simple sequence repeats (ISSR) analyses in order to evaluate their genetic stability and/o...

Three grape rootstock genotypes — Dogridge (Vitis champini), SO4 (V. beriandieri × V. rupestris) and H-144 (V. vinifera × V. labrusca), and their 30 in vitro regenerated plantlets were subjected to Inter Simple Sequence Repeat (ISSR) analysis in order to ascertain the genetic stability of micropropagated plantlets. Out of 35 primers screened initia...