Muhammad Shahid Iqbal

Muhammad Shahid Iqbal
Ayub Agricultural Research Institute | AARI

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106
Publications
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Publications

Publications (106)
Experiment Findings
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Abstract Background The cotton crop is universally considered as protein and edible oil source besides the major contributor of natural fiber and is grown in tropical and subtropical regions around the world Unpredicted environmental stresses are becoming significant threats to sustainable cotton production, ultimately leading to a substantial irre...
Article
The expected gains in the productivity and sustainability of cotton cultivars across environmental spectra may face many challenges. To address this issue, a set of 572 cotton accessions, including 284 F1 hybrids along with their parental lines and checks, were evaluated and compared across multiple test environments. Popular biometrical tools viz;...
Article
Background A major task of biodiversity researchers is speciation and understanding the processes of divergence. This type of research can provide a clear understanding of the mechanisms that produce biodiversity. We analyzed the 16S rRNA gene data by utilizing multivariate statistics for analyses of microbial community structures. Results The 16S...
Article
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Roots are essential organs for a plant’s ability to absorb water and obtain mineral nutrients, hence they are critical to its development. Plants use root architectural alterations to improve their chances of absorbing nutrients when their supply is low. Nine root traits of a Brassica napus association panel were explored in hydroponic-system studi...
Article
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Cotton is an important agro-industrial crop across the globe. Improving the fiber quality and yield potential of cotton are major commercial targets for cotton breeders. The cotton lint yield is computed by multiplying three fundamental yield constituents: average boll weight, boll number per unit ground area, and lint percentage. The cotton specie...
Article
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The ever-changing global environment currently includes an increasing ambient temperature that can be a devastating stress for organisms. Plants, being sessile, are adversely affected by heat stress in their physiology, development, growth, and ultimately yield. Since little is known about the response of biochemical traits to hightemperature ambia...
Article
Full-text available
The ever-changing global environment currently includes an increasing ambient temperature that can be a devastating stress for organisms. Plants, being sessile, are adversely affected by heat stress in their physiology, development, growth, and ultimately yield. Since little is known about the response of biochemical traits to high-temperature ambi...
Article
Full-text available
The study of A-genome Asian cotton as a potential fiber donor in Gossypium species may offer an enhanced understanding of complex genetics and novel players related to fiber quality traits. Assessment of individual fibers providing classified fiber quality information to the textile industry is Advanced Fiber Information System (AFIS) in the recent...
Article
Full-text available
Background Stem hardness is one of the major influencing factors for plant architecture in upland cotton ( Gossypium hirsutum L.). Evaluating hardness phenotypic traits is very important for the selection of elite lines for resistance to lodging in Gossypium hirsutum L. Cotton breeders are interested in using diverse genotypes to enhance fiber qual...
Article
Full-text available
Diversifying available natural resources to cope with abrupt climatic changes and the necessity to equalize rising agricultural production with improved ability to endure environmental influence is the dire need of the day. Inherent allelic variability regarding significant economic traits featuring both enhanced productivity and environmental adap...
Preprint
Full-text available
Background: Cotton crop is universally considered as protein and edible oil source besides the major contributor of natural fiber and is grown all around the globe. Unpredicted environmental stresses are becoming a significant threat to sustainable cotton production, ultimately leading to a substantial irreversible economic loss. Mitogen-activated...
Preprint
Full-text available
Gossypium hirsutm undergoes a rapid clonal propagation to regenerate a mature plant through tissue culture. In this research, cotton leaf regeneration level for 21 accessions in the field (new leaves) was observed after the first harvest, and a comparison between field regeneration level and callus induction with its regeneration capacity (new shoo...
Article
Full-text available
Cotton has prime importance in the global economy and governs socioeconomic affairs of the world. Water scarcity and high temperature are major constraints that badly affect cotton production, which shows the need for the development of drought-tolerant varieties. Ten cotton genotypes, including three drought-tolerant and seven susceptible, were id...
Article
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Abstract: The development of high-yielding heat-tolerant cotton cultivars harboring plastic phenotypes across warming climatic regions is prime objectives of today's cotton breeding programs. We evaluated eight parents and 15 F 1 hybrids under normal and heat stress conditions. Agronomic and biochemical characters were analyzed using standard least...
Article
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Cucumber, a widely cultivated vegetable, is mostly grown under greenhouse conditions. In recent years, the overuse of inorganic fertilizers for higher yield attainment adversely has affected human health and the environment. Therefore, a greenhouse experiment was designed to evaluate the effects of different nutrient sources (poultry manure (PM) an...
Article
Full-text available
Since the last decade cotton breeders have followed a trend towards emphasizing physiology of fruit development. Cotton plant can support development of leaves, stem and roots by themselves, but inefficient towards building fruit and young boll. Hence boll depends on and takes most of its food from its subtending leaf. In order to track the impact...
Article
Wild progenitors are an excellent source for strengthening the genetic basis and accumulation of desirable variation lost due to directional selection and adaptation in modern cultivars. Here, we re-evaluate a landrace of Gossypium hirsutum, formerly known as Gossypium purpurascens. Our study seeks to understand the genomic structure, variation, an...
Article
Full-text available
Photosynthesis as a source is a significant contributor to the reproductive sink affecting cotton yield and fiber quality. Moreover, carbon assimilation from subtending leaves adds up a significant proportion to the reproductive sink. Therefore, this study aimed to address the source-sink relationship of boll subtending leaf with fiber quality and...
Article
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Stem reserves in grain crops are considered important in grain filling under post-anthesis stress in the absence/low availability of photosynthetic assimilates. Considerable variation is present among genotypes for stem reserve translocation in wheat. Therefore, this study aimed to exploit the phenotypic variation for stem reserve translocation in...
Article
Full-text available
Stem reserves in grain crops are considered important in grain filling under post-anthesis stress in the absence/low availability of photosynthetic assimilates. Considerable variation is present among genotypes for stem reserve translocation in wheat. Therefore, this study aimed to exploit the phenotypic variation for stem reserve translocation in...
Article
Full-text available
For about a century, plant breeding has widely exploited the heterosis phenomenon–often considered as hybrid vigor–to increase agricultural productivity. The ensuing F1 hybrids can substantially outperform their progenitors due to heterozygous combinations that mitigate deleterious mutations occurring in each genome. However, only fragmented knowle...
Article
Interrogations of local germplasm and landraces can offer a foundation and genetic basis for drought tolerance in wheat. Potential of drought tolerance in a panel of 30 wheat genotypes including varieties, local landraces, and wild crosses were explored under drought stress (DS) and well-watered (WW) conditions. Considerable variation for an osmoti...
Preprint
Full-text available
Continuous selection and adaptation to the local environment resulted in the loss of genetic variation in Gossypium hirsutum , which is the most important source of natural fiber. Wild progenitors are an excellent source for strengthening the genetic base and accumulation of desirable traits in modern cultivars. Here we reevaluate a landrace of Gos...
Article
Full-text available
An evaluation of combining ability can facilitate the selection of suitable parents and superior F1 for hybrid cotton breeding, but the molecular genetic basis of combining ability has not been fully characterized. In this study, 282 female parents were crossed with four male parents in accordance with the North Carolina II mating scheme to generat...
Article
Full-text available
Bread wheat (Triticum aestivum L.) harbors hexaploid genome with complex of three diploid genomes (A, B and D). Major goals of today’s research in the wheat world count basically on improvement of grain quality and high yielding genotypes. It is relatively easier to target its diploid lineages for identification of high yielding genomic segments as...
Preprint
Full-text available
Background Stem hardness is one of the major influencing factors for plant architecture in upland cotton (Gossypium hirsutum L.). Evaluating hardness phenotypic traits is very important for the selection elite lines for resistant to lodging in Gossypium hirsutum L. Cotton breeder are interested in using diverse genotypes to enhance fibre quality an...
Preprint
Full-text available
Background Stem hardness is one of the major influencing factors for plant architecture in upland cotton (Gossypium hirsutum L.). Evaluating hardness phenotypic traits is very important for the selection of elite lines for resistance to lodging in Gossypium hirsutum L. Cotton breeder are interested in using diverse genotypes to enhance fiber qualit...
Article
Full-text available
Upland cotton is the most economically important fibre crop. The human-mediated selection has resulted in modern upland cultivars with higher yield and better fibre quality. However, changes in genome structure resulted from human-mediated selection are poorly understood. Comparative population genomics offers us tools to dissect the genetic histor...
Article
Full-text available
Wheat considered to be the most important among all cereal crops, is grown across various agro-ecological zones around the globe. It is the main staple food playing a prominent role in the economy of the country as well as in the cropping system. The present study was conducted to estimate genotypic correlations among morphological traits and yield...
Article
Full-text available
The aim of this study was to determine agronomic and fiber quality traits, yield components and fiber technological properties of three mutant cotton varieties and one wild type varieties from GhFPF1 (Line-1, Line-2, Line-3 and Wild type Chinese Cotton). From each variety four lines are cultivated and three lines of wild type is also cultivated tot...
Article
Full-text available
Cotton possesses certain physical features, including leaf and stem trichomes that help plants deter damage caused by insect pests, and to some extent, from abiotic factors as well. Among those features, trichomes (pubescence) hold a special place as a first line of defense and a managemental tool against sucking insect pests of cotton. Different i...
Article
To increase seed yield and oil contents, variability in breeding material is a pre-requisite. Plant material was comprised of forty-nine sunflower genotypes to investigate the variability and identification of superior genotypes by multivariate analysis. The data were recorded for ten quantitative traits; days to maturity (DM), plant height (PH), s...
Chapter
Pakistani agriculture is at the crossroad to fulfill burgeoning population needs. Cotton itself and its by-products revealed provision of food and fiber production. However, it’s per acre yield demands employment of advanced production technology like seed selection, delinting, best-adapted method of sowing, weeds infestation, timely application of...
Article
Full-text available
Cotton (Gossypium hirsutum L.) is the most important fiber crop worldwide. Characterizing genotype by environment interaction (GEI) is helpful to identify stable genotypes across diverse environments. This study was conducted in six environments to compare the performance and stability of 11 inbred lines and 30 intraspecific hybrids of cotton. Anal...
Book
Crop Production Technologies for Sustainable Use and Conservation: Physiological and Molecular Advances presents an abundance of research on important and new production technologies for the successful sustainable production of major crops. The volume covers most of the major crops used the production of food, sugar, and commercial fiber. With the...
Article
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The present research work was conducted to obtain genetic divergence regarding fiber and yield associated traits among 12 different Chinese cotton varieties (cultivars) of upland cotton. The phonological studies were accomplished via carrying out correlation, and cluster analyses. The outcomes from current study demonstrated strong positive correla...
Article
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Wheat (Triticum aestivum L.) the most widely grown crop across the globe is considered as the staple food of about 35% population of the world. Being a water-deficit country, Pakistan faces major reduction in wheat production especially in rainfed areas. Photosynthate or current assimilates are among the major carbon sources used during the grain f...
Article
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By introduction of transgenic cotton, dusky cotton bug (DCB) (Oxycarenus laetus Kirby) has attained the status of major pests of cotton. In order to assess its damage on cotton crop current study was undertaken under field condition at the research area of Cotton Research Institute, Multan. For this purpose, two transgenic cotton genotypes viz. MNH...
Article
A research experiment was executed to investigate the presence of genetic variation existing as components of variation, correlations and path-coefficient analysis of yield and fiber quality traits viz. plant height, sympodial branches per plant, bolls per plant, boll weight, ginning outturn percentage, seed index, fiber length, fiber fineness and...
Article
Full-text available
Background: Heterosis, a multigenic complex trait extrapolated as sum total of many phenotypic features, is widely utilized phenomenon in agricultural crops for about a century. It is mainly focused on establishing vigorous cultivars with the fact that its deployment in crops necessitates the perspective of genomic impressions on prior selection f...
Article
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Seven early maturing grape varieties (Kings Ruby, Sultanina-C, Perlette, Flame Seedless, Vitro Black, Early White and Superior) were evaluated for their comparative performance under semi-arid conditions of Pothowar region during 2015-17 at Barani Agricultural Research Institute, Chakwal, Pakistan. As these varieties ripen before monsoon season so...
Article
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p>The present study was designed to evaluate the changes in different physiological traits such as proline content, cell membrane stability, relative water content and chlorophyll content under drought stress in sixteen wheat genotypes. Wheat genotypes (99FJ-03, Marvi-2000, WC- 13, WC-24, WC-19, Faisalabad-85, Kaghan, Bahawalpur, Zarlashta, Punjab-...
Article
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Current study was carried out at cotton research station Faisalabad during cotton growing season 2014-15 with aim to workout the genetic variability, phenotypic variation (PV), genotypic variation, heritability and genetic advance. Analysis of variation (ANOVA) revealed that significant variation was observed among the advanced lines of cotton for...
Article
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In the current scenario, whitefly has become a big threat on cotton. It sucks cell sap and is carrier of cotton leaf curl virus (CLCuV). Very useful developments have been accomplished regarding biology, ecology, behavior, and population dynamics of whitefly. Pest management system against whitefly research shifted from conventional pesticide regim...
Article
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This research was conducted to assess the indirect selection of yield through yield contributing traits because seed yield possess complex inheritance and low heritability. In this study fifteen hybrids of sunflower (Helianthus annuus L.) were evaluated in autumn 2016; RCB design in triplicate by maintaining row to row and plant to plant distance o...
Article
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The experiment was conducted at the field of University of Agriculture, Faisalabad, Pakistan to evaluate the performance of lower dose of herbicides in combination with allelopathic crop water leachates for controlling horse persulane (Trianthemaportulacastrum L.) weed in cotton field during two consecutive years of 2007 and 2008. Seven treatments...
Article
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Cotton boll rot disease incidence during the study period ranged from 0.24% to 6.80% with a mean of 2.32%. Rotting activity was higher in case of Aspergillus, Rhizopus, Fusarium. Alternaria, Helminthosporium, Cladosporium, Curvularia, Botryodiplodia, Xanthomonas, Pantoea, Pseudomonas than other boll rot causing pathogens. Pseudomonas, Xanthomonas m...
Article
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Osmotic adjustment is an important physiological mechanism to sustain plant growth and productivity under drought stress. Plants maintain their turgor potential by accumulating osmolytes which decrease the osmotic potential. Present experiment on traits association and path analysis was conducted during 2012-2013, under two environments (control an...
Article
Full-text available
Recombinant inbred lines (RIL) population (F7) of two A-genome progenitors i.e. T. monococcum and T. boeoticum were evaluated for various yield affecting parameters. For all the traits under study enlisting components of variance, genetic advance and heritability were observed to be showing highly significant differences (P ≤ 0.01). Trend of high p...
Article
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The present study was carried out to estimate genotypic and phenotypic correlation coefficients to create a path for the improvement in yield of linseed (Linum usitatissimum L). For this purpose nine linseed accessions (LS-1, LS-15, LS-16, LS-20, LS-27, LS-29, LS-35, LS-40, LS-48) and a check variety Chandani were tested at Department of Plant Bree...
Article
Full-text available
Drought is serious problem in rainfed areas due to rapid change in climatic conditions. Among prevailing abiotic stresses, it is the most significant and severe factor inhibiting plant growth and production. Water deficiencies in plants impair its numerous biological functions. Selection of wheat genotypes that can tolerate water scarcity is vital...
Article
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This study was conducted to investigate the genetic variability of plant growth and physiological characters in thirty wheat genotypes under normal and drought stress conditions. Selection of important plant growth and physiological traits are essential component for wheat yield improvement. For this purpose, an experiment was conducted in the glas...
Article
Full-text available
Drought is serious problem in many parts of the world in circumstances of rapid change in climatic conditions especially for rainfed agriculture. Among prevailing abiotic stresses, it is the most significant and severe factor inhibiting plant growth and production. Water deficiency in plant impairs the numerous physiological and metabolic functions...
Article
Full-text available
Dusky bug (Oxycarenus laetus) and red cotton bugs (Dysdercus koingii) are commonly known as seed bugs because they feed on cotton seed. They have become major threat to cotton in Pakistan since last two years. The present studies were therefore planned to find out the role of sowing dates in cotton pest population. The dusky and red cotton bug popu...
Article
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To assess genetic variation within a cultivar, four commercial varieties with five individual G. hirsutum genotypes and their bulk were assayed with selected forty 10-mer RAPDs per cultivar via PCR. CIM-473 cultivar showed amplification of 321 bands in total per primer with an average of 8 bands. A range of similarity i.e.; 80% - 100% within the cu...
Article
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Genetic variability and inheritance mechanism for some forage quality traits were analyzed in 9 sorghum crosses along with their 6 parents in randomized complete block design with 3 repeats under irrigated conditions. All the characters under investigation showed highly significant differences for genotype, general combining ability and specific co...