288 Meadowview Road

Sacramento, CA, United States

288 Meadowview Road

Sacramento, CA, United States
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Vasileva V.,Institute of Forage Crops | Mitova T.,Agrotechnology And Plant Protection Institute N Poushkarov | Athar M.,288 Meadowview Road
Pakistan Journal of Botany | Year: 2017

The productivity of three leguminous crops birdsfoot trefoil (Lotus corniculatus L.), sainfoin (Onobrychis viciifolia Scop.) and subterranean clover (Trifolium subterraneum L.) was evaluated in green house grown alone or mixed with Lolium perenne L. perennial ryegrass in 2013 and repeated in 2014. Each leguminous crops were grown alone (100%) or mixed with ryegrass at (50:50). Birdsfoot trefoil or sainfoin was also grown with subterranean clover along with perennial ryegrass grass (33:33:33). Higher productivity was found with the treatments of mixtures, i.e., for dry aboveground biomass, by 20.4%, and for dry root biomass, by 25.4%, respectively. More stable productivity of plant biomass was obtained in mixtures. © 2017, Pakistan Botanical Society. All rights reserved.

Nizami S.M.,Pmas Arid Agriculture University | Mirza S.N.,Pmas Arid Agriculture University | Khan I.A.,Pmas Arid Agriculture University | Athar M.,288 Meadowview Road
African Journal of Biotechnology | Year: 2011

Agri-silicultural system is in vogue for livelihood under prevailing biophysical limitations of the environment in northern areas of Pakistan. Therefore, to make the farmers realise the significance of agroforestry system and to analyse its income, agro ecological effect on agroforestry income of farmers a study was carried out in two villages of two different agro ecological zones of northern areas in Pakistan; Jalalabad and Bagrot valley. A total number of 120 households were randomly selected for survey and data collection. The study revealed that there was significant difference in agro forestry income in the two agro ecological zones. The double cropping zone has more agro forestry income when compared with the single cropping zone. The agro forestry income and cultivated land had linear relationship such that with the increase of farm size, agro forestry income increased. It was observed that, agro forestry increased the production of tree components on farmland and minimised the dependency on natural forest for firewood and timber. © 2011 Academic Journals.

Mahmood Z.,Bahauddin Zakariya University | Athar M.,288 Meadowview Road | Khan M.A.,Bahauddin Zakariya University | Ali M.,Bahauddin Zakariya University | And 2 more authors.
African Journal of Biotechnology | Year: 2011

Genetic diversity of seven chickpea (Cicer arietinum L.) cultivars of Pakistani origin was analyzed by using random amplified polymorphic DNA (RAPD) markers, an extremely effective method to determine the variations among the chickpea cultivars. Polymerase chain reaction (PCR) conditions were optimized for RAPD and the conditions which gave the optimized results were selected for further amplifications. Using nine random decamers for seven genotypes of chickpea, 63 bands were amplified. Out of 63 bands, 50 were polymorphic in all the seven chickpea cultivars. The numbers of RAPD fragment s generated per primer ranged from 3 to 11. However, majority of the primers amplified 7 to 11 fragments. The Jaccard's similarity coefficients ranged from 0.333 to 0.651. Maximum similarity (65.1%) was observed between PK G-3 and PK G-4 and the lowest similarity (33.3%) was observed between PK G-3 and PK G-7. A dendrogram was constructed by using the unweighted pair group arithmetic mean arrangement (UPGMA) that was based on similarity coefficients. Seven chickpea cultivars were clustered in two distinct groups of which two cultivars (PK G-6 and PK G-7) stood separately in the dendrogram. The results from this study may be useful to maximize the selection of diverse parent cultivars and to broaden the germplasm base in the future for chickpea breeding programs. The information generated from this study can also be used in identifying efficient strategies for the sustainable management of the genetic resources of chickpea crop. © 2011 cademic Journals.

Khan A.A.,University of Agriculture | Iqbal M.,University of Agriculture | Ali Z.,University of Agriculture | Athar M.,288 Meadowview Road
Plant Biosystems | Year: 2010

A complete diallel study of crosses between eight wheat varieties was carried out to determine the relative magnitude of components of genetic variation and heritability for important grain yield, quality and drought-related traits. The data appeared adequate for the additive-dominance model. The additive effects predominated for most traits, and consequently the narrow-sense heritability was high to moderately high for flag leaf area, weight and venation, stomatal frequency and size, epidermal cell size, biomass, protein content, number of tillers, spike length, spike density, 1000-grain weight and grain yield. These results appear promising for selecting better plants in the segregating populations with some degree of improvement for yield, quality and physiological efficiency. © 2010 Società Botanica Italiana.

Atiq-ur-Rehman S.,Government of Pakistan | Iqbal M.Z.,University of Karachi | Athar M.,288 Meadowview Road
Agriculturae Conspectus Scientificus | Year: 2011

Growth of Albizia lebbeck was observed in the polluted soils from towel, garment, rubber and ply board factories in the vicinity of Landhi and Korangi industrial areas of Karachi. Growth of A. lebbeck was reduced in most of the industrial area soils as compared to the control soil from Karachi University campus. The rubber factory soil reduced all the growth parameters as compared to the control soil. Percentage of soil pollutants (total soluble salts and available sulfate) in all of the industrial area soils was higher than in the control area soil. Percentage of coarse sand, calcium carbonate, total soluble salts, available sulfate, and chromium was higher in soil of rubber factory then in the control area soil whereas percentage of water holding capacity, organic matter and zinc was lower in soil from rubber factory than in the control area soil. This showed that the soil of industrial areas of Landhi and Korangi particularly from rubber factory and ply board factory was contaminated by the pollutants in the area and drastically affected the plant growth. The findings of this research could be helpful in monitoring and controlling the pollutant levels in soils of the industrial areas. Such information could also be useful for landscaping and urban planning.

Vasileva V.,Institute of Forage Crops | Kostov O.,Institute Of Soil Science N Pushkarov | Vasilev E.,Institute of Forage Crops | Athar M.,288 Meadowview Road
Pakistan Journal of Botany | Year: 2011

Utility of lucerne crop fertilization with nitrogen fertilizer has been discussed in literature with controversy. In this study experiment was conducted to determine the effect of mineral nitrogen at the doses of 40, 80, 120 and 160 mg N/kg on some characteristics of lucerne under induced water deficiency stress at the stage of budding in a pot trial. It was found that mineral nitrogen at the doses of 120 and 160 mg N/kg soil increased the productivity of dry top mass by 17 and 23% in conditions of optimum moisture, and by 9% in conditions of water deficiency stress at the dose of 80 mg N/kg soil. Application of mineral nitrogen at the dose of 120 and 160 mg N/kg soil increased the quantity of dry root mass by 43 and 38% for the conditions of optimum moisture, and by 54-56% for conditions of water deficiency stress. Mineral nitrogen fertilizing at the dose of 40 mg N/kg soil had the lowest suppressive effect on the nodulation (11%). The dose of 160 mg N/kg soil was found to be toxic to nodulation. The dose of 80 mg N/kg soil, at which the crop had the lowest sensitivity to water deficiency stress, was optimal for lucerne development.

Qadri R.,University of Karachi | Mahmood A.,University of Karachi | Athar M.,288 Meadowview Road | Mahmood N.,University of Karachi
Journal of Applied Botany and Food Quality | Year: 2010

Free amino acid composition in nitrogen fixing root nodules of the leguminosae (Fabaceae) Albizia lebbeck (L.) Benth., Pithecellobium dulce (Robx.) Benth., Samanea saman (Jacq.) Merr. of subfamily Mimosoideae and Dalbergia sissoo Roxb. ex DC of subfamily Papilio-noideae was determined. In all, 14 amino acids were detected. On the basis of their contribution to the total amino acid composition of nodules, seven of them, namely aspartic acid, glutamic acid, serine, tyrosine, alanine, leucine and valine were designated as major amino acids. They were present in all four species. They together formed the bulk of the total amino acid nitrogen (TAAN). Seven amino acids, i.e. histidine, lysine, cystine, glycine, isoleucine, phenylalanine and arginine were sporadically distributed in nodules of all the four legume species. They were present in small amounts and were designated as minor amino acids. The TAAN in members of Mimosoideae was found higher than the Papilionoideae. Minor amino acids were not detected in nodules of Papilionoideae. The pattern of free amino acids in the root nodules of these four legume trees was compared with non-leguminous and actinorhizal nodules.

Mahmood A.,University of Karachi | Athar M.,288 Meadowview Road | Siddique M.A.,University of Karachi | Mahmood N.,University of Karachi | Naqvi A.R.,University of Karachi
Agriculturae Conspectus Scientificus | Year: 2012

A pot experiment was conducted to determine the effect of sea water salinity on growth, nodulation and nitrogen content of Acacia nilotica (L.) Delile seedlings. Eight weeks old seedlings were irrigated with 40, 50, 60, 70 and 80% sea water for one month. Aft er 12 weeks the plants were uprooted and the nodules were observed for their frequency, shapes and sizes. Nodules showed morphological alterations in size and shape in different salinity levels. The root-shoot ratio, nitrogen contents in the leaf, stem and root were analyzed. In general salt stress resulted in a decrease of plant growth, nodulation and percent tissue nitrogen in A. nilotica plants. Root-shoot ratio showed gradual increase with increasing sea water concentrations. Nitrogen contents decreased in leaf and stem, whereas it increased in roots. Nodules showed morphological alterations in size and shape with increasing salinity. A. nilotica accumulated NaCl in the xylem of the roots that may be considered as a preliminary salt tolerant mechanism adopted by the plant.

Naveed A.,University of Agriculture at Faisalabad | Khan A.A.,University of Agriculture at Faisalabad | Rauf S.,University of Sargodha | Athar M.,288 Meadowview Road
Journal of Applied Botany and Food Quality | Year: 2010

Drought susceptibility index was used to screen okra germplasm for drought tolerance. On the basis of fresh pod yield and drought susceptibility index, genotypes were divided into four groups. There was a relative shift in the performance of the genotype across the water levels. Arka Anamika showed the highest fresh pod yield under non-stress condition with high drought susceptibility index while Sanam showed lowest drought susceptibility index with highest yield potential under drought stress condition. Physiological and morphological analyses were carried out to study the mechanisms of drought tolerance. The genotypes showed significant interaction with sampling intervals. However for osmotic adjustment, turgor pressure, relative water contents, harvest index and root/shoot ratio, genotypes' performance were relatively stable over sampling intervals. Among the traits, relative water contents allowed the genotypes to separate into drought tolerant and sensitive groups. Therefore selection for high RWC at 30 days after stress may be useful tool for the selection of drought tolerant genotypes. Furthermore, this trait has also shown very high narrow sense heritability, showing its potential for the selection of drought tolerant breeding material. Segregating generations of the cross Arka Anamika x Sanam was used to establish high yielding progenies.

Dowell R.V.,288 Meadowview Road
Pan-Pacific Entomologist | Year: 2015

The attraction of non-target insects to the male fruit fly lures methyl eugenol (1,2-Dimethoxy-4-prop-2-en-1-ylbenzene), cue-lure (4-[4-(acetyloxy)pheny1]-2-butanone), and trimedlure (t-Buty1-2-methy1-4-chlorocyclohexanecarboxylate) was examined in the main plant communities in California, except the desert, in 2012 and 2013. A total of 39,166 non-target insects were trapped during the study. Of these, 27 species or morphospecies in five orders and 20 families were deemed as attracted to one of the male lures. The most common of these were in the Syrphidae (Diptera) genera: Platycheirus Le Peletier & Serville, 1828, Melanostoma Schiner, 1860, Meliscaeva Zetterstadt, 1843, Ferdinandea Latreille, 1802, Hadromyia Verrall, 1901, Blera Billberg, 1820, and Melangyna Williston, 1882, as well as the genus Empis Linnaeus, 1758 (Diptera: Empididae) and the genus Orchesia Latreille, 1807 (Coleoptera: Melandryidae). The low capture rate of these non-target insects (<4/day maximum), combined with the discrete nature of the California Department of Food and Agriculture's trapping and fruit fly eradication programs using the lures, indicates that the use of these lures will not have a significant impact on non-target insects attracted to them.

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