Mumtaz Khan

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Verified

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• PhD
• Professor (Associate) at Sultan Qaboos University

Citrus Greening Disease (CGD) was critically reviewed with respect to its history, origin, symptomatol-ogy, host range, pathogenic association, identification and detection, transmission and management. It is evident that the citrus disease has emerged as a potential serious threat to citrus production in all the citrus growing countries of the wor...

Urban areas are contending with ever-changing man-made and natural disasters such as floods, droughts, pollution, and the escalating threat of rising sea levels, which pose serious consequences to local communities and the broader regional ecology. In this context, the restoration of forest ecosystems and the establishment of small new forests with...

The breeding strategies of horticultural crops have progressed from traditional breeding to gene editing techniques. These advancements have a significant role in tackling global challenges caused by climate change to increase production and feed the ever rising global population. The genome editing techniques, Zinc Finger Nucleases (ZFNs), Transcr...

Climate change, urbanization, and overpopulation are of a global concern that can hamper smooth food supply chain and security worldwide. There is an extreme need to enhance food security through increased production and improved produce quality that meets consumer demands for preferred taste and nutrition. Fruits and vegetables are rich sources of...

Cucurbitaceae comprises a variety of vegetables with global economic importance. However, many of these vegetables remain unexplored regarding their genetic diversity for morphological and biochemical traits. The present research was conducted to classify, categorize, characterize, and conserve the available luffa gourd germplasm in Pakistan. Sixte...

With the increasing migration of people to urban areas, the demand for extra, fresh, and healthy food in cities has escalated manyfold. Further, anthropogenic activities, high rise buildings, and unplanned construction in urban areas are increasing urban heat. Therefore, the objective of this study is to review the salient features and constraints...

Water scarcity is an extreme global concern due to changing climate and rapid population growth. Worldwide, freshwater sources are depleting and there is a need to implement water-conserving approaches in water-limited or arid areas for sustainable crop production. Therefore, this study aimed to investigate the impact of deficit irrigation on cucum...

Globally, urban areas are facing a rising issue of industrial pollution particularly due to heavy metals like Cadmium (Cd), which pose a threat to both plants and humans. However, plants response to Cd exposure varies based on factors like species, genetics, and growing conditions such as the type of soil and cultivation methods. This study focused...

Locally produced soil amendments can play a vital role in sustainable agriculture, enhancing soil quality and crop plant growth. This study investigated the impact of locally sourced biochar (BC) and ash, obtained from Maerua crassifolia Forssk. (wood), and Saccharum kajkaiense, Melderis (grass) on soil properties and okra (Abelmoschus esculentus)...

Fruit crops are an important entity of the agriculture sector that plays a significant role in global nutritional health and food security. It has been estimated that by 2050, there will be 70% more food demand to meet the requirements of the fast-growing world population. Therefore, there is a need to improve the existing fruit crop cultivars by e...

Grape is a highly nutritious and ever-demanded fruit crop that is enriched with premium phytochemicals. Owing to health benefits, its cultivation has shown a continuous upward trend in subtropical areas of the world. In these regions, early maturing grape varieties are preferred as they require lower chilling hours to break the dormancy and bear fr...

Grapes (Vitis vinifera L.) are highly valuable crops enriched with minerals, vitamins, phenolics, and antioxidants required for daily human activities and to prevent cancer and cardiovascular diseases. The objective of this study was to elucidate the physicochemical and mineral evaluation of seven neglected local grape cultivars (‘Kishmish’, ‘Sra K...

Date palm (Phoenix dactylifera L.) cultivation is expanding worldwide, particularly in regions where this crop has been recently introduced. Therefore, it is essential that proper practices are employed to ensure successful date production. Establishment of a date palm plantation necessitates knowledge of the climate, particularly temperature and r...

Rapidly increasing salinization of arable land is a major threat to crop production globally, and the soil of regions with arid environments, such as Oman, are more prone to this menace. In this work, two complementary studies were carried out to evaluate the effect of soil amendments on soil physicochemical properties and growth of cucumber seedli...

Jujube belongs to the family "Rhamnaceae" is an evergreen plant having 170 species. It is a highly nutritious fruit crop riched in phenolic, antioxidant, and flavonoids. However, in Pakistan, it is considered a neglected crop with very little work performed and is growing in the Cholistan desert of Pakistan without any evaluation. This paper descri...

The use of marginal-quality waters, not limited to brackish/saline and treated sewage effluent (TSE), is called reclaimed water. Reclaimed water is a sustainable source in the future for use in agriculture, essentially required to offset the food demand of a rapidly growing population. Moreover, the sustainable recovery of reclaimed water is essent...

Urbanization is currently expanding worldwide and causing land degradation. As the world population continues to increase, there is a growing challenge for food production to meet people’s dietary needs. The current agriculture technologies have increased crop production, but they also have endangered the agricultural ecosystem. The excessive use o...

Climate change, urbanization and subsequent environmental changes are depleting freshwater resources around the globe. The reuse of domestic, industrial and agricultural wastewater is an alternative approach to freshwater that can be used for irrigation purposes. However, these wastewaters may contain hazardous and toxic elements, such as heavy met...

Oman is located in an arid region of the world that is characterized by adverse climatic conditions, including heat and drought. In recent years, it has also been affected by climate turbulence and the occurrence of severe weather, such as cyclones and heat/cold waves affecting large agricultural areas of the country. Fruit cultivation area represe...

Organic soil amendments have been used in Oman since prehistoric agriculture began and are still being used today. Recently, interest in certified organic farming, and the use of organic soil amendments to enhance soil quality has motivated more research on traditional and new diverse soil amendment products. In addition, the arid climate of Oman c...

Long term intensive agricultural farming has impacted negatively the soil health, especially in arid climates. This study aimed to investigate the impact of long-term (1993 to 2020) farming practices on the chemical and biological properties of soil and water of Al-Batinah region. Soil and water samples were collected from eight farms and character...

Embryogenic calli were induced from stem segment of carrot (Daucus carrota L.) cultivar T-29 when cultured on callus induction (CI) medium containing MS salts, Myo-inositol, B5 vitamins, 3 mgL-1 2,4-D, 1 mgL-1 Kinetin and 20 gL-1 sucrose. Somatic embryos were developed from calli upon transferring to MS medium, containing 30gL-1 sucrose without any...

This endeavor includes thirty grapes’ genotypes grown in northern zones of Punjab, Pakistan to determine similarities and dissimilarities in forty-four morphological traits according to the descriptor “International Plant Genetic Resources Institute (IPGRI)”. The relation between the genotypes was determined by principal component analysis (PCA), a...

Citrus is among one of the most important and widely grown fruit crops that is cultivated worldwide. The rootstocks of citrus have a significant impact on the yield and quality of fruits. Therefore, before selecting a proper rootstock, a number of its attributes and characteristics are evaluated such as, vigor, yield, rooting ability. Gibberellic a...

High temperature and humidity can be controlled in greenhouses by using mechanical refrigeration cooling system such as air conditioner (AC) in warm and humid regions. This study aims to evaluate the techno-financial aspects of the AC-cooled greenhouse as compared to the evaporative cooled (EV-cooled) greenhouse in winter and summer seasons. Two qu...

Twenty pomegranate accessions of Southern and Eastern zones of Afghanistan were selected to explore their biochemical properties. Physico-chemical analysis of juice of all accessions revealed range from 11.60 to 18.60 °Brix for TSS, 2.83 to 4.40 for pH, 1.22 to 2.81% for titratable acidity, 10.65 to 14.28% for total sugars, 5.47 to 7.67% for redu...

Pomegranate (Punica granatum) is a major fruit in Afghanistan, having a long history as wild and domesticated throughout the country. Best fruit accessions were evolved in the world through selection and utilization of genetic resources that were missing in the country. In our studies, various morphological (qualitative and quantitative) traits wer...

Citrus is one of the most important fruit crop in the world and is usually grown through grafting technique. Rootstock is one of the significant part in grafted plants and has crutial effect on production, including yield, fruit quality, tree size, tolerance to salts and diseases, and scion compatibility. Citrus is susceptible to several fungal pat...

Abstract: Sufficient production, consistent food supply, and environmental protection in urban +settings are major global concerns for future sustainable cities. Currently, sustainable food supply is under intense pressure due to exponential population growth, expanding urban dwellings, climate change, and limited natural resources. The recent nove...

Viticulture is one of the most important crop industries in the world and its cultivation is on the upward trend globally. Global water and soil resources continued to decline sharply and rampant extreme weather conditions are becoming a serious threat to sustainable agriculture and food security. Further, the changes in climatic conditions are inc...

The most effective rooting hormone (IBA) concentration was determined by studies on the clonal propagation of olive semi-hardwood cuttings. A semi-hardwood cutting experiment was carried out on two different olive cultivars BARI zaitoon-1 and BARI zaitoon-2 cuttings with 0, 2500, 3500 and 4500 ppm IBA solutions planted in the same rooting media (sa...

Date fruit is well known for their taste and concentrated nutritional components. Present study investigated two Omani date varieties i.e., Umsellah and Khalas, related to their physical traits, antioxidant properties, carbohydrates and nutritional values. Results showed that total-phenolic in Umsellah were 62% higher compared to Khalas, i.e., 164....

Limes are a genetically diversified group of citrus including acid limes, sweet limes, Australian limes, other limes, lime hybrids and Rangpur lime, however, only Mexican lime and Tahiti lime are currently being widely cultivated. This chapter describes the origin and domestication of important lime species as well as their reproductive biology, ec...

Al-Maamari, I. T., Khan, M. M., Al-Sadi, A. M., Iqbal, Q. & Al-Saady, N. (2020). Morphological characterization and genetic diversity of Fenugreek (Trigonella foenum-graecum L.) accessions in Oman. Bulg. J. Agric. Sci., 26 (2), 375-383 Fenugreek (Trigonella foenum-graecum L.) is one of the important legume crops grown in the Sultanate of Oman. The...

Incidence of citrus canker caused by Xanthomonas campestris pv. citri was investigated in kinnow orchards of Faisailabad.

Streptomycin sulphate, Agrimycin 100, Vitavax, Dithane M-45 and Ridomil in that order were found most effective; while, Antracol, Pencozeb, Liromanzeb, Polyram combi, Cobox and Benlate were relatively less effective in inhibiting the culture of Xanthomonas campestris pv. citri. Dithane M-45 and Ridomil at 0.1% concentration were comparatively less...

Soil organic amendments can be used to improve soil fertility, quality, and increase crop productivity. The investigations were conducted to study the effects of some organic soil amendments (biochar and two commercial composts) on plant growth and soil properties. Two different soil types (cropped and un-cropped) were supplemented with organic mod...

Al-Maamari, I. T., Khan, M. M., Al-Sadi, A. M., Iqbal, Q. & Al-Saady, N. (2020). Morphological characterization and genetic diversity of Fenugreek (Trigonella foenum-graecum L.) accessions in Oman. Bulg. J. Agric. Sci., 26 (2), 375-383 Fenugreek (Trigonella foenum-graecum L.) is one of the important legume crops grown in the Sultanate of Oman. The...

Medicinal Plants of South Asia: Novel Sources for Drug Discovery provides a comprehensive review of medicinal plants of this region, highlighting chemical components of high potential and applying the latest technology to reveal the underlying chemistry and active components of traditionally used medicinal plants. Drawing on the vast experience of...

Lime (Citrus aurantifolia L.) and related species are briefly introduced with details of new varieties. The economic importance, global distribution of limes and reasons for low productivity are discussed. Significance of germplasm collections, biodiversity and conservation along with breeding systems is explained in detail. Application and utiliza...

The sustainability of our food supply is under intense pressure due to population growth, extreme climate change and limited natural resources. Recent projections suggest that agricultural production needs to increase as much as 70% through 2050 to meet the food demands of up to 9 billion people. Family farming is a worthy initiative which does not...

Organic plant products offer numerous health benefits and it is essential to preserve soil productiveness without adding any synthetic chemical additives. Soil amendment materials particularly from organic sources are able to enhance the soil fertility for sustained environmental quality and plant productivity. Studies were conducted to investigate...

A study was conducted to evaluate genetic relatedness of 27 citrus cultivars and 6 wild citrus accessions using AFLP fingerprinting. The 27 citrus cultivars belonged to Citrus sinensis, C. aurantifolia, C. aurantium, C. paradise, C. reticulata, C. limon, C. latifolia, C. maxima, C. limettoides, C. limetta, C. medica and C. Jambhiri. The wild cultiv...

Organic plant products offer numerous health benefits and it is essential to preserve soil productiveness without adding any synthetic chemical additives. Soil amendment materials particularly from organic sources are able to enhance the soil fertility for sustained environmental quality and plant productivity. Studies were conducted to investigate...

The scope of clonal propagation of guava (Psidium guajava L.) by soft wood cuttings collected from mature plant is described. The most successful media among those traditionally used and to identify promising alternatives was determined. Soft wood cuttings were done to determine the most successful medium and Paclobutrazol (PBZ) hormone concentrati...

Lettuce is a cool season vegetable that has a tendency to bolt in long day and high temperature environments. In this study, lettuce plants were exposed to two temperature transfers to evaluate the pattern of biomass accumulation, stem elongation and bolting. Plants were reciprocally transferred between two temperatures (13 and 25°C). A negative co...

In Pakistan citrus groves in general are facing a serious problem of decline that is attributed to different causes. The major cause, however, is the prevalence of citrus virus and virus-like diseases; Citrus tristeza virus (CTV) is of utmost concern. Although CTV has been identified and characterized on the basis of serological and physical proper...

Editorial Citrus is the second largest fruit crop of the world with 130947.0 thousand tonnes of fruit harvested annually from an area of over 1441523 hectares [1]. Production per unit area is the highest (32.85 tonnes per hectare) in South Africa compared to world average of 9.73 tonnes per hectare [1]. Total world citrus export was recorded 15912....

This book is the most recent collection of research and scientific literature exclusively dedicated to lime (Rutaceae) culture and the marketplace. The coverage of each subject area is broad, ranging from basic cultivation practices to postharvest handling to uses, which makes it the best choice for amateurs and professionals alike. Chapter 1 empha...

Main Description This book is a comprehensive and up-to-date resource covering the botany, production and uses of limes. The lime is an important fruit crop throughout citrus producing regions of the world, with its own specific benefits, culture and marketplace, but producers face issues affecting successful cultivation and production. The Lime:...

Chapter 1 (Page no: 1) Introduction and overview of lime. This chapter introduces the lime crop (Rutaceae), discussing its taxonomy, history, origin, distribution, global production, plant description, propagation, cultivars, pests, diseases, and uses. Although the documented history of limes is more than 700 years old, the parentage and origin of...

The citrus industry has been rapidly expanding over time. However. land. water and input resources are becoming scarce and fierce competition has developed among plants for nutrients and other plant growth requirements. Hence. growers are keen to reduce their production costs and earn higher profits. This requires precise and efficient utilization...

A survey was conducted to record the views of visitors of three purposefully selected historic Mughal gardens of Pakistan to evaluate the available facilities and to develop guidelines for their improvement if desired. Two hundred visitors were interviewed to generate required information. Majority of the visitors (61.5%) were unsatisfied with the...

Fenugreek (Trigonella foenum-graecum L.) has enormous nutritional and medicinal values. Its herbaceous leaves and seeds are being used for human consumption since centuries. This study evaluated the diversity of certain phytochemicals (total phenolic contents, flavonoids, saponins and tannins,) in seeds of twenty Omani fenugreek accessions. The fen...

Thirty two date palm (Phoenix dactylifera L.) varieties from the Date palm Research Station, Jhang, Punjab, Pakistan were examined for their approximate physico-chemical characterization for the fruit. All detections were made at khala, rutab and tamar stages (maturity) of fruit. Significant differences were recorded in the physical and chemical ch...

Agriculture sector is one of the essential sectors to any nation. This sector is a challenging domain worldwide due to multiple biotic and abiotic stresses. The search for finding new agricultural technologies to enhance the crop productivity is a prime goal. Exposure of crop seeds or plants from short to longer term radio frequency and electromagn...

Wheat is a staple grain food throughout the globe, in Oman it is grown on small scale due to prolonged aridity. However, there is demand to increase area under wheat to make country food secure. Drought is an important abiotic stress factor which significantly reduces sustainable crop production. Crop plants respond to drought stress through certa...

The present study was designed to investigate the effect of micronutrients (Fe, B, Zn, Mn, Cu and Mo) on vegetative growth and essential oil contents of Tulsi (Ocimum sanctum). The concentrations of the primary nutrients (N, K and P) and secondary nutrients (Ca, Mg and S) were kept constant while concentrations of the micronutrients (Fe, B, Zn, Mn,...

The present investigation on clonal multiplication of guava (Psidium guajava L.) soft wood cuttings was done with the aim to determine the most successful media and rooting hormone (IBA) concentration. Guava soft wood cuttings were treated with 0, 200, 400 and 600 mg kg⁻¹ IBA solution when planted in three different rooting media (sand, silt and to...

Essential oil of O. sanctum L. (Tulsi) has been used in cure of many diseases in traditional system of medicine, but application of its bioactive fractions as antioxidant, antimicrobial and antitermitic ingredient is still unexplored. Yield (%) of Ocimum sanctum essential oil extracted by hydrodistillation was 0.197. Ocimum sanctum essential oil wa...

Variable symptoms were recorded during a survey in the citrus trees infected orsuspected to be infected with citrus tristeza virus based on ELISA tests. Sweetorange manifested main symptoms like bud union crease, pin holing, barkcracking, incompatibility, yellowing and dropping of leaves. Pin holing wasparticularly prevalent in Sweet orange (Citrus...

A greenhouse study was conducted to determine the morphological, physiological and biochemical responses of four citrusroots tocks viz. Volkameriana (Citrus volkameriana Ten. and Pasq.), Rangpur Lime (Citrus limonia Osbeck), Trifoliate Orange (Pontius trifoliate (L.) Raf.) and Rough Lemon (Citrus jambhiri Lush.) to sodium chloride (NaCl) salinity a...

The present experiment was conducted to study the influence of growing substrates on the growth of citrus plants. Rough lemon and Kinnow mandarin was selected as a rootstock and scion cultivars, respectively. Eleven potting mixes were assessed along with the control, mixed by v:v basis. Citrus seedlings cultivated in potting mix growing substrate (...

Date palm is the primary agricultural crop in Oman, and it constitutes 80 % of all fruit crops produced and 50 % of the total agricultural area in the country. Oman is the eighth largest producer of dates in the world with an average annual production of 260,000 mt per annum. There are approximately more than over seven million date palms and 250 c...

Polyploids play a key role in the improvement of citrus cultivars. Citrus breeding programs necessitate morphological, cytological and genetic characterization of cultivars. Here we analyze the polyploids using these three approaches. Cytological studies signify occurrence of spontaneous triploids (9.95%) and tetraploids (6.05%) in Kinnow mandarin...

Studies were conducted to assess the role of mucilage in seed des iccation, germination, and its interaction with fungus in Rough lemon, Sachtion citrumelo and Yuma citrange rootstock seeds of citrus fruits. Water loss percentage was minimum (with or without mucilage) in Rough lemon seeds (20.28%) and (31.25%) at 25°C an d 35°C respectively, with h...

Medicago sativa Linn growing in Omani desert were chemically characterised using flame photometry, inductively coupled plasma, gas chromatography – mass spec-trometry and high performance liquid chromatographic (HPLC) analysis. HPLC analyses were performed to determine the phenolics and flavonoids present in M. sativa. The major compounds detected...

To explore morpho-physiological alteration in wheat for salinity tolerance, a glass house experiment was laid out in randomized complete block design (RCBD) with three replications at Nuclear Institute of Agriculture, (NIA) Tando Jam, Pakistan. Studies were conducted with two levels of salinity (Control, and 12 dS m(-1) NaCl) and five wheat genotyp...

Vegetable cultivation under greenhouse conditions is steadily growing in agricultural sector but concern developed over environmental sustainability of this farming system. Our aim was to identify organic amendments with a biochemical quality that effectively balance the trade-off between organic carbon recovery, in terms of increasing soil organic...

Kinnow (Citrus reticulata Blanco) mandarin is a superior fruit crop in Pakistan; however, it is characterized by high number of seeds which is disliked by consumers and the processing industry. The objective of this work was to document the morphological and genetic differences in selected seeded and seedless Kinnow strains from two different locat...

The date fruit is a primary component of the human diet in many countries with arid and semiarid climates. The present study reflects the relationship of different biochemical attributes with progressive date fruit developmental stages. The study involved eight date palm (Phoenix dactylifera L.) cultivars from Pakistan examined at three different e...

A pot culture study was conducted to assess the ameliorative effect of silicon, Melia azadirachta leaf extract, and sugar beet root extract, each applied individually or in different combinations, on salinity-induced detrimental effects in pea (Pisum sativum L.). Salinity markedly inhibited the growth, various gas exchange attributes, total phenol...

Agriculture in the Sultanate of Oman is mostly small scale and is a part of the traditional way of life. The majority of the population benefit from agriculture, however little. The 67 % of the population was in households that had at least one crop or livestock holding where the output contributed to consumption or income. Since the year 2000, the...

Tomato production in Oman depends on imported hybrids, which do not follow any officially regulated import mechanism leading to the exploitation of tomato growers. This study evaluated the adaptability and nutritional quality of 54 tomato genotypes acquired from AVRDC, Taiwan, tested at two locations viz. Agricultural Experimental Station, Sultan Q...

Tomato production in Oman depends on imported hybrids, which do not follow any officially regulated import mechanism leading to the exploitation of tomato growers. This study evaluated the adaptability and nutritional quality of 54 tomato genotypes acquired from AVRDC, Taiwan, tested at two locations viz. Agricultural Experimental Station, Sultan Q...

Seven local landraces of common and durum wheat (Triticum aestivum L. and T. durum L.) from the arid and semi-arid areas of the Sultanate of Oman were examined for specific leaf and stem structural features for water conservation. On the basis of shoot fresh and dry weights (g plant−1), degree of tolerance to drought and salt stresses in these whea...

Mandarins (Citrus reticulata) and sweet oranges (Citrus sinensis) trees in three major citrus producing regions in Punjab, Pakistan, were assessed to detect and characterize Citrus tristeza closterovirus (CTV). Leaf, twig bark, and stem bark tissues of the trees were tested for the presence of CTV using enzyme-linked immunosorbent assay (ELISA). Pl...