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Home > Efficacy of Polymer Coated Diammonium Phosphate Bioaugmented With Endophytic Bacteria on Growth, Yield and Phosphorus Use Efficiency of Wheat Triticum Aestivum L.

Efficacy of Polymer Coated Diammonium Phosphate Bioaugmented With Endophytic Bacteria on Growth, Yield and Phosphorus Use Efficiency of Wheat Triticum Aestivum L.

Thesis Info

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Author

Muhammad Zahir Aziz

Program

PhD

Institute

University of Agriculture

City

Faisalabad

Province

Punjab

Country

Pakistan

Thesis Completing Year

2018

Thesis Completion Status

Completed

Subject

Soil Sciences

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/10138/1/Muhammad%20Zahir%20Aziz_Soil%20Sci_2018_UAF_PRR.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676726036117

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Efficiency of applied phosphatic fertilizers on calcareous soil is very low, 10–25%. This is due to high calcium activity that substantially retards P availability to plants. Saving of phosphate fertilizer from calcium or solubilizing the fixed P is in fact improving its availability to plant. Coating granules of diammonium phosphate (DAP) fertilizer with polymer-entrapped bacteria can improve availability of P and deliver microbe in rhizosphere for improving P use efficiency and crop production. A series of experiments including laboratory, wire house and field were conducted to investigate the efficacy of polymer coated DAP bioaugmented with endophytic bacteria on growth, yield and P use efficiency of wheat (Triticum aestivum L.). Polymer including carboxymethyl cellulose (CMC), polyacrylamide (PAM) and alginate and pre-isolated wild type and their derivatives endophytic bacteria strains Enterobacter sp. MN17 and Burkholderia phytofirmans PsJN were taken for experiments. Polymer solutions and endophytes inocula were mixed by unit ratio. In laboratory experiments, different concentrations (0.5, 1 and 1.5%) of three polymers CMC, PAM and alginate were taken to check the microbial survival over different time intervals. Selected concentrations of alginate (1.5%), CMC (1%) and PAM (0.50%) and carbon sources [(G) 1%, glycerol (Gly) 1% in separate and then combination (G 1% + Gly 1%)] prototype solution was prepared to determine microbial survival at different time intervals. The best selected polymers concentration and carbon source (polymer + (1% G + 1% Gly) + MN17 or PsJN) prototype solution was coated on DAP granules and recovery of microbes from coated DAP surface was counted at different storage temperatures i.e.10, 25 and 40°C up to three months. Maximum microbes survive rate was recorded on DAP granules surface stored at temperature 10°C in order of alginate, PAM and CMC entrapped microbes, respectively, followed by 25 and 40°C storing temperature, respectively. Coated DAP fertilizer with alginate (1.5%), CMC (1%) and PAM (0.50%) along with {(G + Gly) + MN17 or PsJN)} was placed in cups containing 200 g soil at rate 1 g 100-1 g soil along with alone polymer coated and uncoated DAP as control to elucidate the P release pattern in soil at different field capacity (FC) moisture levels (50, 75 and 100% of FC) and temperatures (10, 25 and 40°C) up to two month. Best performing organically complex polymer-entrapped endophytic bacteria coated DAP fertilizer i.e. alginate (1.5%) and PAM (0.50%) along with {(1% G + 1% Gly) + MN17 or PsJN)} was selected and tested under wire house and field conditions. Results revealed that application of alginate-entrapped MN17 coated DAP at recommended rate increased plant height (36%), chlorophyll content (41%), photosynthesis rate (67%), grain yield (83%), grain P (39%), Straw P (30%), total P uptake (90%) as compared to uncoated DAP. Maximum phosphorus recovery efficiency (165%) and agronomic efficiency (181%) was recorded in the treatment of alginate entrapped MN17 coated DAP applied at half of recommended rate over recommended rate of uncoated DAP treatment. Application of PAM entrapped MN17, alginate and PAM entrapped PsJN coated DAP at recommended rate were followed this treatment. Regarding microbial enumeration in rhizospheric soil and root endosphere results of pot trial showed that application of alginate entrapped MN17 coated DAP showed maximum recovery of MN17 in rhizosphere soil and root endosphere i.e. 12 ± 0.54 × 107 CFU-g soil and 3.78 ± 0.74 × 106 CFU-g root, respectively. So, it can be summarized that polymer entrapped microbes coated DAP is a novel approach that could effectively carry required count of microbes into the rhizosphere that is under conditions improve growth, yield and phosphorus use efficiency of wheat crop compared to alone either polymer coated DAP.
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فیض احمد فیض کی شاعری کا تنقیدی جائزہ

فیض احمد فیض کی شاعری کا تنقیدی جائزہ
فیض احمد فیض غالب اور اقبال کے بعد اردو کے سب سے عظیم شاعر ہیں۔ آپ تقسیمِ ہند سے پہلے ۱۹۱۱ء میں سیالکوٹ میں پیدا ہوئے۔ آپ انجمن ترقی پسند مصنفین تحریک کے فعال رکن اور ایک ممتاز اِشتراکیت سٹالنسٹ فکر کے کمیونسٹ تھے۔
فیض شاعری میں ایک نئی روایت کے علمبردار وہ ترقی پسند تحریک کے بانیوں میں سے ہیں مگر ان کے ہاں دیگر ترقی پسندوں کی طرح تلخی نہیں ہے۔ انہوں نے مروجہ الفاظ کو نہایت فنکارانہ انداز میں معنی عطا کیے اور غزل کی معروف روایات کو اپنے نصب العین کے مفاہیم کے ساتھ بیان کیا۔
بچپن:
فیض۱۳ فروری ۱۹۱۱ء کو کالا قادر، ضلع نارووال، پنجاب، برطانوی ہند میں ایک معزز سیالکوٹی گھرانے میں پیدا ہوئے۔۱۹۲۱ئمیں آپ نے سکاچ مشن اسکول سیالکوٹ میں داخلہ لیا اور یہاں میٹرک تک تعلیم حاصل کی۔ میٹرک کے امتحانات کے بعد آپ نے ایف اے کا امتحان مرے کالج سیالکوٹ سے پاس کیا۔ آپ نے اسکول میں فارسی اور عربی زبان سیکھی۔بی اے آپ نے گورنمنٹ کالج لاہور سے کیا اور پھر وہیں سے ۱۹۳۲ئمیں انگریزی میں ایم اے کیا۔ بعد میں اورینٹل کالج لاہور سے عربی میں بھی ایم اے کیا۔
ترقی پسند تحریک کا قیام:
۱۹۳۵ء میں آپ نے محمڈن اینگلو اورینٹل کالج، امرتسر میں انگریزی و برطانوی ادب کے لیکچرر کی حیثیت سے ملازمت کی؛ اور پھر ہیلے کالج لاہور میں۔ آپ نے ۱۹۳۶ئمیں سجاد ظہیر اور صاحبزادہ محمودالظفر کے ساتھ مل کر انجمن ترقی پسند مصنفین تحریک کی بنیاد ڈالی۔
شاعری کے مجموعے:
• نقش فریادی • دست صبا
• زنداں نامہ • دست تہ سنگ
• سر وادی سینا • شام شہر یاراں
• مرے دل مرے مسافر • نسخہ ہائے وفا (کلیات)
فیض ناقدین کی نظر میں:
معروف نقاد پروفیسر آل احمد سرور...

Work-family conflict and fear of COVID-19 and its relationship with the physical and mental health of Pakistani working women

Work-family conflict is a conflict between societal expectations and the interaction of interrelated work and family domains. It is essential to understand the impact of COVID-19 on working women's physical and mental health in Pakistan to advise better health policy. This research aims to determine work-family conflict’s impact on working women’s physical and mental health. Through non-probability sampling, 100 working women were sampled online across different cities of Pakistan. The participants were selected from different working fields. Only women above the age of 20 years were eligible for participation in this study. The study found that work-family conflict positively correlates with the fear of COVID19, blood pressure, depression, and anxiety symptoms. Psychologists, counselors, and general physicians for primary and preventive care in Pakistan need to work towards counselling and supporting the health needs of working women to prevent biopsychosocial problems related to work-family conflict and fear of COVID-19. Keywords: anxiety, blood pressure, depression, fear of covid-19, work-family conflict.

Characterization of Mange Mites and Dermatophytes in Domestic Animals of District Chitral

Mange mites and dermatophytes (commonly referred to as ringworm) are major problems in veterinary medicine. In Pakistan, mange infestation is reported in domestic animals at lower elevations but higher altitudes were not explored previously, while in case of animal dermatophytosis data is lacking throughout the country. Therefore, the present study was designed to characterize mange mites and dermatophytes in domestic animals of district Chitral. Five villages (Kuju, Kaghozi, Mori, Baleem and Sorlaspur) of district Chitral were surveyed during summer (June-July 2012) and winter (December 2012-January 2013) for collection of data and skin scrapings. The mange was diagnosed from skin scrapings by microscopic examination of mites. In total, 6007 animals (2753 sheep, 2033 goats, 1087 cattle and 134 dogs) were investigated during the surveys, among them 55 animals (44 sheep (1.59%), 7 goats (0.34%) and 4 dogs (2.98%)) were diagnosed with mange. Psoroptes ovis (sheep) and Sarcoptes scabiei (sheep, goats and dogs) were the two species of mites identified in microscopy from skin scrapings. The risk factor analysis was carried out separately for livestock species (sheep/goats) and dogs through Chi-square. In Kaghuzi and Sorlaspur less infection was observed as compared to other villages (p<0.05). The infection was higher in sheep than goats, and less than one year age group was more susceptible for mange (p<0.05). A clear trend of higher infection in winter and lower in summer was recorded (p<0.05). Gender, herd size, and herd composition were not significant risk factors for mange (p>0.05). The molecular characterization of Sarcoptes scabiei was carried out by using nine microsatellite markers viz, Sarm 33, 35, 36, 37, 38, 40, 41, 44 and 45 specific to Sarcoptes scabiei. These markers were used to genotype xix individual mites from different host species. Sarcoptes mites from dog and lynx of district Chitral, Pakistan were jointly analyzed with mites collected from different hosts during previous studies from six different countries. Eight private alleles were detected in Sarcoptes mites from dogs and one private allele was detected from mites derived from lynx of district Chitral, Pakistan. The Bayesian cluster analysis in STRUCTURE software proposed five populations of Sarcoptes scabiei from studied mites. The results showed the existence of distinct dog and lynx derived Sarcoptes scabiei populations from district Chitral, Pakistan. The study demonstrated high host specificity in Sarcoptes mites and lack of gene flow between mites from different hosts. In order to characterize dermatophytes skin scrapings were analyzed by microscopy and real-time PCR. At microscopy, samples from 18 cows (1.66%), 4 goats (0.20%) and 3 sheep (0.11%) were positive for fungal elements consistent with Trichophyton verrucosum. Real-Time PCR confirmed the results of microscopy that Trichophyton verrucosum being the only dermatophyte involved. The prevalence was lower in summer as compared to winter (p value<0.05). The infection was more prevalent in young animals (< 1year) and mix herds (p>0.05). There was no significant difference in the prevalence of infection in different villages (p>0.05). The gender and herd size had no association with the disease. The significant risk factors in generalized linear model for Trichophyton verrucosum livestock were cattle, young animals (<1 year age group), winter season and mix herds. This study reports for the first time, the presence of Trichophyton verrucosum in livestock of Pakistan. A better knowledge of the animal role in the spread of this fungus to humans may allow the adoption of more efficient control measures and prophylaxis.