Masumeh Abbasi; Mokhtar Heidari; Mojtaba Rahimi
Abstract
As seed germination of Guava (Psidium guajava) is poor and time-consuming, the effects of seed extraction technique and scarification methods on the seed germination and seedling growth of Guava cv. Allahabad safeda, were investigated. First experiment was conducted on extraction of Guava seeds using ...
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As seed germination of Guava (Psidium guajava) is poor and time-consuming, the effects of seed extraction technique and scarification methods on the seed germination and seedling growth of Guava cv. Allahabad safeda, were investigated. First experiment was conducted on extraction of Guava seeds using sulfuric acid (H2SO4) : seed ratios including: 1:5, 2:5 and 3:5) or manual extraction (control) methods to investigate the effect of these methods on seed germination. The best extraction method was soaking in H2SO4 (H2SO4): seed ratio 1:5); these seeds exhibited the highest germination (70%) and root dry weight (340 mg). In second experiment, seed scarification using sulfuric acid (H2SO4 ) was compared with scarification using hydrochloric acid (HCl). Results showed that seed germination and root growth of seedlings were increased by scarification using HCl for 10 or 15 minutes. It seems that delaying seed germination of guava (Psidium guajava) is mainly related to seed coat hardiness and physical dormancy.
Farzaneh Paimard; Mokhtar Heidari; Mohammad Hossein Daneshvar; Norollah Moallemi
Abstract
Pomegranate (Punica granatum) is an important fruit crop cultivated for fruit and processing in the Iran. Delaying fruit harvest of pomegranate may increase fruit losses due to fruit cracking; however, early harvest may influence physical and biochemical indices of fruit. An experiment was carried out ...
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Pomegranate (Punica granatum) is an important fruit crop cultivated for fruit and processing in the Iran. Delaying fruit harvest of pomegranate may increase fruit losses due to fruit cracking; however, early harvest may influence physical and biochemical indices of fruit. An experiment was carried out in 2011 at ‘Baghmalek’ (North West of Ahwaz, Khuzestan province, Iran) to determine the effects of three stages of fruit harvest (fruit maturity) on quality of fruit in three local cultivars of pomegranate. Fruit weight, density, percentage of juice, peel and seed, vitamin C, total soluble solid (TSS), acidity (TA), anthocyanin and maturity index (TSS/TA) were used for fruit quality assessment. A close relationship was observed between fruit quality and time of fruit harvest (fruit maturity). The fruit quality in respect of TSS, maturity index (TSS/TA), fruit juice color intensity and quality, anthocyanin was superior in fruit harvested from fruits harvested at the 2th and 3th harvest time. Results revealed that the aril weight, TSS, fruit juice color quality was high in ‘Poost Sabz’. Also, lowest fruit L/D, fruit juice, anthocyanin/browning substances ratio and fruit juice color intensity was recorded by ‘Poost Sabz’. Percentage of fruit juice, fruit L/D and vitamin C was high for the fruits of ‘Poost Zard’. Overall, pomegranate fruits harvested at the end of summer had significantly lower quality than fruits harvested at the later stages.
Mohammad Hossein Daneshvar; Mokhtar Heidari
Abstract
Abstract
Narcissus species (Amaryllidaceae) are highly suitable outdoor ornamental plants and also as cut flower. Narcissus is used in folk medicine and is a medicinal plant, because of galanthamine properties. South area of Iran such as Khouzestan province, is one of the most important areas of producing ...
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Abstract
Narcissus species (Amaryllidaceae) are highly suitable outdoor ornamental plants and also as cut flower. Narcissus is used in folk medicine and is a medicinal plant, because of galanthamine properties. South area of Iran such as Khouzestan province, is one of the most important areas of producing cut flower of narcissus in winter season. In this research, the effects of planting distance ( 10, 15 and 20 cm) and depth of culture (10 and 15 cm) of narcissus bulbs on some quantitative characteristics of cut flower in climatic conditions of Mollasani (Khouzestan province, southwest of Iran) were studied. Two-factor experiment was conducted in completely randomized design with four replications. Results showed that it was significant difference among the number of cut flower in different planting distance. The most number of cut flower were obtained in planting distance of 15 cm and depth culture of 10 cm, that only it were not significantly differed with number of cut flower which were produced from planting distance of 10 cm and depth culture of 10 cm. The most height of cut flower were obtained in distance of 15 cm and depth culture of 15 cm that only were significan8:38:52 AMly differed with the height of cut flower in distance of 20 cm and depth culture of 10 cm. The most stem diameter in treatment of 15 cm depth culture and 10 cm planting distance were existed which only they were significantly differed with stem diameter in the treatment of 10 cm depth culture and 20 cm planting distance. Only in the treatment of planting distance of 20 cm and depth culture of 10 cm, the diameter of florets were significantly more than the treatment of planting distance of 20 cm and depth culture of 15 cm. The treatments of depth and planting distance were affected on the flowering time. The treatments of depth and planting distance or their interaction did not significantly affect on the number of floret, open floret at the time of harvesting and floret diameter. The results showed that in climatic condition of Mollasani, planting of narcissus bulb in depth of 10 cm and planting distance of 10 cm were optimum.
Keywords: Bulb, Planting distance, Cultivation depth, Cut flower, Narcissus
Mokhtar Heidari; Abdolmajid Mirza Dastjerdi; Navazollah Moradi
Abstract
Abstract
The effect of different levels of potassium permangenate (KMnO4) on quality of mango fruits were studied over a period of 21 days. A factorial trial in the form of complete randomized design as three levels of KMnO4 (0, 5 or 10 g. kg-1 fruit) and three time period (7, 14 or 21 days) was used. ...
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Abstract
The effect of different levels of potassium permangenate (KMnO4) on quality of mango fruits were studied over a period of 21 days. A factorial trial in the form of complete randomized design as three levels of KMnO4 (0, 5 or 10 g. kg-1 fruit) and three time period (7, 14 or 21 days) was used. Means were compared using Duncan’s test (P< 0.05). Compositional parameters (pH, acidity, total soluble solids, density, ascorbic acid and phenolics in pulp and skin) were measured during storage time. Results showed that after application of -the highest level of -KMnO4 (10 g.kg-1 fruit), treated fruits had significantly higher acidity after 7 days. Fruits that treated with 10 g of KMnO4 had significantly higher phenolics in pulp after 7 days, but phenolics deceased significantly over control after 21 days. Phenolic compounds in fruit skin significantly (P
Masoomeh Abbasy; Abdolrasul Zakerin; Mokhtar Heidari
Abstract
Abstract
Mango is one of the most important tropical fruits in Iran and salinity is an important problem to mango production in ‘Hormozgan’ province and other mango growing areas in Iran. At present experiment the effects of saline irrigation water of different sodium chloride concentration on vegetative ...
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Abstract
Mango is one of the most important tropical fruits in Iran and salinity is an important problem to mango production in ‘Hormozgan’ province and other mango growing areas in Iran. At present experiment the effects of saline irrigation water of different sodium chloride concentration on vegetative growth and ion content of mango was evaluated. Treatments comprised two type of cultivars (‘Sendry’ and ‘Charak’) and four water irrigation salinity regimes (1.5, 3.0, 4.5 or 6.0 ds/m). Results showed that salinity significantly decreased shoot and root dry weight, water content and increased root/ shoot dry weight ratio. Salinity significantly increased the sodium and chloride ions in shoot or roots and decreased the potassium content in roots. Also, salinity decreased the potassium/ sodium ratio in roots and shoots. The results demonstrated that ‘Sendry’ cultivar was slightly more tolerant to salinity than ‘Charak’.
Keywords: Mango(Mangifera indica L.), Salinity, Vegetative growth, Ion
Mohammad Hossein Daneshvar; Mokhtar Heidari
Abstract
Abstract
In this research, the effects of corm culture in 15, 20 or 25 cm distances in two culture pattern of triangle and square on growth and flowering of gladiolus (Gladiolus hybrida cv. White friendship) was investigated. The experiment was carried out as factorial in completed randomize design ...
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Abstract
In this research, the effects of corm culture in 15, 20 or 25 cm distances in two culture pattern of triangle and square on growth and flowering of gladiolus (Gladiolus hybrida cv. White friendship) was investigated. The experiment was carried out as factorial in completed randomize design with four replication (each replicate consist of one plot 1×1.5 m). The results showed with corm culture in triangle pattern and 25 cm distance, the height of flowering stalk was significantly more than corm culture in 15 cm distance in both triangle and square patterns. The ratio of flowering section height to stalk height in culture distance of 25 cm in both patterns were significantly higher than 15 cm culture distance. The most number of cut flowers were produced in 15 cm culture distance in both patterns and increase of culture distance caused of decreasing this index in both patterns. In both triangle and square culture patterns, increase of culture distance caused of decreasing the number of new corms and the most number of corms were obtained in 15 cm distance of triangle pattern. The culture pattern and culture distance of corm did not affect significantly on weight and diameter of new corms and also weight, number and diameter of cormlets. The treatments used were not affected significantly on ratio number of florets to height of stalk, number, height and wide of leaf and diameter of stem.
Key words: Plant Density, Culture Pattern, Gladiolus, Cut Flower, Flowering
