Hamed Hassanzadeh Khankahdani

Horticulture Crops Research Department, Agricultural and Natural Resources Research and Education Center of Hormozgan, AREEO, Iran.

Root-knot nematodes (RKNs), Meloidogyne spp., are globally important plant-parasitic nematodes with a very broad host range including cucumber. In this research, we evaluated the nematicidal efficacy of commercial Abamectin-CAP (Vertimec 1.8% EC) versus Iranian-produced Abamectin-IAP (Vertimec 2% EC) compared with Cadusafos (Rugby), Trichoderma har...

Pink root disease (PRD) caused by Setophoma terrestris is a major disease in onion‐producing regions. The fungus primarily infects onion, but occasionally causes disease on other plant species such as cereals, corn, cucurbits, pepper, spinach, and soybean. In this study, we analysed the efficacy of three commercially available fungicides at low dos...

Fusarium basal rot (FBR) is a serious disease of onion that causes significant losses globally. There are several control measures, of which planting of resistant FBR-cultivars is the most advantageous control option. Thus, to elucidate the involving mechanisms to FBR infection, we consequently carried out quantification changes in antioxidant enzy...

Root and crown rot incited by an oomycete, Phytophthora melonis, causes significant yield losses in commercial pumpkin (Cucurbita pepo) production worldwide. Currently, resistant cultivars and knowledge of molecular mechanism of C. pepo against P. melonis are scarce. Here, we analysed the quantitative gene expression changes of 10 candidate gene ma...

Mexican lime (Citrus aurantifolia Swingle) is one of the most important citrus rootstocks in the tropical and subtropical areas that is generally susceptible to cold and freezing. The aim of this study was to investigate the impact of melatonin (0 and 500 μM) on the cold tolerance of Mexican lime plants at 0 and − 6 °C. Findings indicated that mela...

The date palm is one of the most important perennial plants in arid and semi-arid areas, with high economic importance. Date fruits are good sources of essential nutrients for humans. These fruits are rich in secondary metabolites such as phenolic compounds as well as nutrient compounds, which have medicinal importance for humans. Though date palm...

Crocus sativus is known as saffron and is a valuable spice for its red stigmas worldwide. This species under edaphoclimatic conditions, including soil properties, precipitation, geographical coordinates and especially temperature has changeable yields in terms of production of daughter corms and stigma yield. Therefore, understanding saffron plant...

We evaluated genetic diversity and population structure of Iranian melons (Cucumis melo L.) using combinations of 35 primer pairs: 15 Simple-Sequence-Repeats (SSR); 10 Inter-Simple-Sequence-Repeats (ISSR); and 10 Sequence-related amplified polymorphism (SRAP) markers in association with resistance to melon Fusarium wilt, caused by Fusarium oxysporu...

Cold stress is one of the abiotic stresses that leads to most losses in citrus. ‘Mexican’ lime is one of the commercial citrus cultivars in the world, which is commonly used as a citrus rootstock. This study aimed to investigate the effect of acetic acid (0 and 15 mM) as a cost-effective agent on the cold tolerance of ‘Mexican’ lime plants at 0 and...

We evaluated genetic diversity and population structure of Iranian melons (Cucumis melo L.) using combinations of 35 primer pairs: 15 Simple-Sequence-Repeats (SSR); 10 Inter-Simple-Sequence-Repeats (ISSR); and 10 Sequence-related amplified polymorphism (SRAP) markers in association with resistance to melon Fusarium wilt, caused by Fusarium oxysporu...

Pepper, Capsicum spp. (Solanaceae) is one of the vegetable crops with significant and multiple roles in human diet, as a vegetable, spice, food colorant and ornamental purposes worldwide. Pepper root and crown rot (RCR), and or Phytophthora-blight caused by Phytophthora capsici (Oomycetes) is one of the most destructive diseases of Capsicum species...

This experiment aimed to investigate the effects of foliar application of organic matter and microelements on the biochemical properties and mineral element content in the Shahani date fruit for two successive years. This was done in the form of randomized complete blocks with 14 treatments in three replications on 42 palms in Jahrom city. Treatmen...

To develop an understanding mechanism to define responding of potatoes to R. solani, we analyzed the expression of ten novel candidate gene-markers using reverse-transcription-quantitative PCR (RT-qPCR) in resistant ‘Savalan’ and partially resistant ‘Agria’ in contrast to susceptible ‘Sagita’, and partially susceptible ‘Pashandi’. In addition, oxid...

Researchers have considered the unique structure of chitosan due to its amino groups (as a nitrogen source) as well as its roles in the chelating of the metal elements for decades. Many studies have been conducted about the role of this polysaccharide in various fields of agriculture such as the preparation of seed coatings, the production of slow-...

Nutrient elements have a significant role in plant physiology and metabolism, and the concentration of nutrients in the plant depends on plants genetic makeup and their interactions with biotic and environmental factors. A large percentage of Mexican lime (Citrus aurantifolia Swingle) orchards have been infected with witches’ broom disease of lime...

Short postharvest life of button mushroom (Agaricus bisporus L.) is a serious problem in the expansion of marketing and long-distance transportation of this product. Edible coating is an effective way to delay the browning process and mitigate the deterioration of button mushroom. In this study, the impact of Aloe vera gel alone and combined with b...

In this study, the effect of Aloe vera coating alone and combined with basil (Ocimum basilicum) essential oil at 500 and 1000 µL L-1 concentrations on postharvest quality of peach (Prunus persica L.) was investigated. Parameters including weight loss, firmness, total soluble solids (TSS), color L*, a*, b* and hue angle were measured during the stor...

Mexican lime (Citrus aurantifolia Swingle) is one of the most important fruit trees in south of Iran. In the recent years, many Mexican lime orchards in Iran have been infected by witches' broom disease of lime (WBDL), which is caused by Candidatus Phytoplasma aurantifolia. This plant pathogen is prokaryote (pseudo-bacterial), and affects on the ch...

Postharvest management of mango, as a climacteric fruit with high perishability rate, is of particular economic importance. In this study, the effect of γ-aminobutyric acid (GABA) (50, 100 and 200 µmol L⁻¹) were evaluated regarding efficacy of delaying in fruit softening and maintaining nutritional quality of mango fruit during storage at 15 ± 1 °C...

The climacteric nature of mango makes it ripen quickly and increases its postharvest losses. The objective of the present search was to evaluate the efficacy of 1%–3% sodium alginate edible coating for maintaining the postharvest nutritional quality and increasing the marketability of the mango fruit during storage at 15 ± 1°C and 85 ± 1% relative...

Date palm (Phoenix dactylifera L.) is a monocot, dioecious and high longevity tropical plant greatly considered due to its high economic importance in Middle East. This investigation was carried out to detect genetic relations among 34 cultivars of Iranian date palm, both males and females, using ISSR markers. Accordingly, total DNA was extracted u...

Because of sexual propagation of Mexican lime in southern regions of Iran, there are many lime accessions (lime biotypes) in Mexican lime gardens in which appear some variation in fruit and tree shape. However, most of these accessions are susceptible to witches broom disease of lime (WBDL). Persian lime (C. latifolia Tanaka) is a triploid WBDL-tol...

In order to determine the best onion transplant age in Minab region of Hormozgan province, Iran, an experiment was performed as factorial arrangement in randomized complete block design with three replications in two successive years. For this purpose, the seeds of Primavera, Texas Early Grano, Early White and native landraces of Jirofti and Baluch...

Disease symptoms resembling those associated with phytoplasmas were observed in Manilkara zapota (sapodilla) trees in Hormozgan province, Iran. A nested po-lymerase chain reaction using phytoplasma universal primers was used to detect phytoplasmas in symptomatic trees. Amplification and sequencing of a 1.2-kb 16S rDNA fragment confirmed that sapodi...

Persian lime (PL), Citrus latifolia Tanaka, is a triploid and WBDL (Witches Broom Disease of lime) resistant lime which experiences cultivation extension these days. In addition to PL, there are many unknown triploid lime germplasms in the south of Iran, which necessitate to be identified. The current study was conducted to evaluate phylogenetic re...

Effects of humic acid on some vegetative characteristics and mineral concentrations of Mexican lime were investigated under different salinity concentrations. Four doses of humic acid (0, 1500, 3000 and 4000 mg/kg soil) and four salinity levels (1500, 2500, 3500 and 4500 µmos) were applied on Mexican lime seedlings. Experiment was conducted as a fa...

Sapodilla (Manilkara zapota L.) is the tropical fruit from Sapotaceae. This plant is now cultivated in Southern Iran. One of the important problems of sapodilla fruit is short postharvest maintenace period. In this study the effect of calcium chloride and thyme essential oil treatments on fruit quality and quantity characteristics of sapodilla frui...

In this paper the effect of calcium chloride and some essential oils, on preservation quality of jujube (Ziziphus mauritiana) was investigated. The treatments included control (distilled water) and concentrations 250 and 500 ppm of Shirazi Thyme, Artemisia sieberi and Salvia essential oils. After the treatments, fruits were stored at 4 ° C and rela...

In comparison to other horticultural crops, Citrus species are classified among very sensitive plants to salinity. One of the methods for increasing salinity tolerance in Citrus is grafting of commercial and sensitive cultivars to salinity on resistant rootstocks to salinity and evaluation the effect of interstocks. In this regard, recognition the...

Sweet potato (Ipomoea batatas L.) is the seventh important food crop in the world after Wheat, Rice, Maize, Potato, Barley and Cassava, and in viewpoint of nutrition value has more protein than other tuberous crops such as cassava and Yam. In order to investigate the feasibility and finding the best planting date of Sweet potato in Minab region (Ho...

In order to evaluate the effects of transplanting dates (7 October, 22 October and 6 November) and weed control treatments (50, 75 and 100% of recommended dose of oxyfluorfen herbicide and hand weeding) on weed control,bulb yield and quality of onion cv. Rio Bravo, a split plot design experiment was conducted in Minab (Hormozgan province) in 2013-1...

In order to evaluate the fungicide effect of medicinal plant essence and comparison their influence to chemical fungicides for rising of postharvest life of mango (Mangifera indica c.v Langra), was performed an experiment in completely randomized design with 14 treatments and 10 replicates. The treatments were consist: control (without treatment),...

This study was conducted on 5-years-old grafted sweet lime trees as factorial arrangement in randomized complete block design with 4 replicates in Jahrom region. The first factor was iron sulfate (0, 5 and 10 mgL-1) and the second factor was zinc sulfate (0, 5 and 10 mgL-1). Both factors were applied as spraying in mid-June after June drop. In the...

In order to evaluate the effects of pruning and girdling on regulating of alternate bearing in Siahoo mandarin (Citrus reticulata Blanco), an experiment was performed in a RCBD during four years with five treatments consist: low spring pruning, severe spring pruning, girdling, low spring pruning + girdling and severe spring pruning + girdling. Gird...

The Soilless culture system is one of the greenhouse culture methods that is needed to the more condensed farming performances than the field culturing and are using a wide range of culture media. Hence in order to achieve the best and most appropriate culture medium to production of healthy, strong and homogeneous transplant, reduction of producti...

In order to evaluate the different concentrations of Naphthalene Acetic Acid (NAA) on alternate bearing of 'Siahoo' mandarin (Citrus reticulata Blanco) was performed an experiment as factorial arrangement in randomized complete block design with two factors. First factor was spray time (30 or 50 days after flowering) and different concentration of...

In order to evaluate the Allelopathic effects of Sweet basil (Ocimum basilicum) extract and essence of chlorophyll content of Abutilon (Abutilon theopharasti), Goosefoot (Chenopodium album) and Centaury (Centaurea depressa) was conducted an experiment in completely randomized design with three replicates In vitro condition in the physiology laborat...

In order to evaluate of the cutting location on shoot and Indule butyric acid (IBA) on rooting of 'Night Jessamine' (Cestrum nocturnum) stem cuttings, this study was performed as factorial arrangement in randomized complete block design in mist greenhouse with 4 replications and 10 cuttings per replicate. For this purpose was prepared annual shoots...

In this study was evaluated the effect of 4 citrus rootstocks consist Sour orange (Citrus aurantium L.), Bakraei (C. reticulata L.× C. aurantium L.), Mexican lime (C. aurantifolia L.) and Volkamer lemon (C. volkameriana L.) on chlorophyll content and mineral elements (N, P, K, Ca, Mg, Na, Fe, Zn, Cu, Mn, Cl and B) in scion's leaf of Kinnow mandarin...

In this study, have been evaluated the effect of four citrus rootstocks [(Sour orange (Citrus aurantium), Bakraei (C. reticulate × C. limmetta), Mexican lime (C. aurantifolia) and Volkamer lemon (C. volkameriana)] Valencia orange leaf chlorophyll content and mineral elements concentration (N, P, K, Ca, Na, Mg, Fe, Zn, Mn, Cl, Cu, and B) in complete...

In order to evaluate the effect of media type and indule butyric acid (IBA) on rooting of Night Jessamine (Cestrum nocturnum) cuttings, this study was performed as factorial arrangement in randomized complete block design in mist greenhouse. For this purpose was prepared 15 cm long semi-woody cuttings and was cultured in sand and peat-moss media af...

In order to, evaluation and identification of suitable cultivar for Minab region at south of Iran, this experiment was performed as RCBD with 16 tomato cultivars and 3 replication. Sowing was performed in tray culture with 105 cells containing peat moss in early September and transplants was cultured in mid October. Evaluated cultivars were consist...

In order to comparison the effect of different rootstocks and grafting techniques on graft union percent, yield and yield components of Watermelon cv. 'Crimson sweet' was performed an experiment in two phases (greenhouse and field). Greenhouse phase was in CRD as factorial with 5 replications and field phase was in RCBD with 3 replications. In gree...

A survey for phytoplasma was carried out in citrus orchards in Hormozgan province of Iran in 2009 to assess the presence of 'Candidatus Phytoplasma aurantifolia' in non-citrus hosts. Symptoms of witches' broom, little leaf, short internode and yellowing were observed in Solanum nigrum (Fig. 1) and S. surattense (Fig. 2). S. nigrum (black nightshade...

In order to evaluation the graft height, scion number and cutting off the rootstock on graft union percentageage, canopy volume and yield in three budded Ziziphus cultivars (Ziziphus mauritiana), an experiment was performed an experiment as factorial arrangement in RCBD with three replications. Factors were consisting: graft height from soil surfac...

In order to, evaluation the effects of different quantities of phosphorous on yield and yield components of Coriander (Coriandrum sativum L.) in Ghaemshahr region conditions, was performed the experiment in RCBD with 4 replications. Phosphorous treatments were consisting: 0, 10, 15 and 20 mg/kg pot soil from triple super phosphate fertilizer. In ea...

Nowadays, propagation of good Ziziphus cultivars was done by budding or grafting on wild Ziziphus seedlings. Hard endocarp is one of the barriers on seed germination and rootstock production. This study was conducted to evaluate the effect of difference treatments (control, 24 hours soaking in tap water, digested seeds, scarification with sulfuric...

In this study was evaluated interaction between rootstock type and scion cultivar on nitrogen concentration of scion leaf in stage of grafted plant production as factorial in completely randomized design in greenhouse with four replications. For this purpose was budded scion of citrus commercial cultivars (Sweet lime, Mexican lime, Kinnow mandarin,...

Witches’-broom disease of lime (WBDL), caused by ‘Candidatus Phytoplasma aurantifolia’, has devastated many Mexican lime orchards and is currently a threat to lime production in neighboring provinces of southern Iran. Several reports have suggested transmission and spread of WBDL phytoplasma through the seed of infected plants. In the present study...

The citrus nematode is an important nematode that is distributed in citrus gardens worldwide and causes decline and growth reduction of citrus plants. A control way of this nematode is chemical control that it is dangerous to environment. In this research, leaf extract of Allium sativum, Brassica campestris, Capsicum frutescents,Glycyrrhiza glabra,...