Muhammad Shah Zaman1, Ghulam Muhammad Ali2, Aish Muhammad1, Khalid Farooq2, Iqbal Hussain1*
...nity is one of the major abiotic constraints that severely affect the productivity of agricultural crops in arid and semiarid regions. In vitro screening of eight potato varieties (Asterix, Cardinal, Challenger, Desiree, Hermis, Kroda, Sh-5 and Sante) was investigated for salt tolerance at 0.0, 10, 20, 40, 60, 80, 100 mM NaCl supplemented with MS medium. Kroda emerged as the most salt tolerant variety with the highest plant height (6.5 cm), number of nodes (8....
Luca Vitale
...heir habitat to multiple abiotic and biotic stresses that limit growth and productivity; however, plants are able, to some extent, to cope with limiting environmental conditions by means of different mechanisms that contribute to their adaptive success in different habitats....
Muhammad Imran*, Munir Ahmad, Muhammad Naeem, Muhammad Farooq Nasir, Imran Bodlah, Muhammad Nasir and Umer Ayyaz Aslam Sheikh
...aterials. Such important abiotic affect of rearing environment suggests polycarbonate boxes the most suitable on all three developmental stages of bumblebees for efficient commercial mass rearing....
John Gachohi, Simon Karanja, Salome Wanyoike, Nduhiu Gitahi, Salome Bukachi, Kenneth Ngure
...c (human and animal) and abiotic (soil, water and weather) habitats in Leptospira propagation. Influential habitats would serve as key targets for interventions. To achieve this aim, we have designed a pseudo-longitudinal survey to be undertaken for two years in Kibera slums in Nairobi city Kenya. Human and animal blood and urine samples will be collected at the household level whereas soil and water samples will be collected at the community level. Attempts w...
Zamarud Shah, Safdar Hussain Shah, Asad Jan and Gul Shad Ali
...ustify;">Among different abiotic stresses, heat stress has the most devastating impact on plant growth. Heat shock transcription factors are known to play an important role in regulating heat stress in plants. Tobacco (Nicotiana benthamiana) was transformed with heat shock transcription factor HsfA1d by transfecting leaf discs with Agrobacterium strain GV3101 carrying CaMV35S-YFP::HsfA1d construct. After PCR and confocal-based confirmation, HsfA1d overexpress...
Syed Ishfaq Ali Shah1,*, Tassawar Hussain Malik2, Imran Rafi Khan1 and Zahid Hussain3
1N. Johnson Singh, 2Amitava Konar and 3Palash Mondal
Incidence of aphids in different traps on potato in Gangetic plains of West Bengal
...the end of February. The abiotic factors viz., temperature (maximum & minimum), relative humidity% (maximum & minimum) and bright sunshine hour had significant effect on aphid population. The same abiotic factors were quite different between the first and second year. This was due to the fact that the climatic conditions in second year varied distinctly from the first year....
1S. A. Khan and 2S. Jha
Effect of dates of sowing, moisture regimes, varieties and weather factors on incidences of aphid, Lipaphis erysimi (Kalt.) in rape and mustard
...fluenced by predisposing abiotic factors, has been widely reported as the most noxious insect pest limiting production of rape and mustard. Field experiment was carried out with 3 varieties of rape and mustard, 6 dates of sowing and 2 moisture regimes to understand aphid population dynamics during different phases of growth of rainfed vis-à-vis irrigated rape and mustard crops, and work out relationships between aphid population and weather parameters f...
S. Choudhury and S. Pal
Population dynamics of mustard aphid on different Brassica cultivars under terai agro-ecological conditions of West Bengal
...population and different abiotic factors revealed contradictory results. Except for a few instances the weather parameters showed low order of associations with aphid population. Thus, the ecological factors exhibited little impact on the population build up of mustard aphid. The degree of infestation and the rates of population change of the aphids on different Brassica cultivars seem to be governed by varietal characteristics of different germplasms. Brassic...
Erol Akkuzu1,*, Hidayet Güzel2 and Özkan Evcin1
...ify;">Various biotic and abiotic factors influence the population dynamics and severity of damage in a forest. This study investigated the effects of stand composition and site index of pine forests on Ips sexdentatus (Boerner) populations. Two main objectives of this study were a) to compare the effects of two different black pine stands of site index-I (high site productivity) and site index-III (low site productivity) and b) to compare the pure and m...
Muhammad Hannan Ahmed1, Muhammad Irfan Ullah1,*, Abu Bakar M. Raza1, M. Afzal1, A. Khaliq1, Yasir Iftikhar2 and Hafiz Muhammad Aatif3
...of thrips in relation to abiotic climatic factors. Interaction effect was found significant in Bt varieties but not for non-Bt cultivars. Average thrips population per leaf on various Bt and non-Bt varieties showed that the CIM-557 along with BT-703 had the highest number of thrips density while Bt variety FH-113 had the lowest thrips population per leaf. Similarly, in relation to thermal effect, high thrips population was re...
Zabih Ullah*, H. Rahman and Niaz Muhammad
...scape various biotic and abiotic stresses. It also makes multiple cropping possible as the land becomes available for next crop. Keeping the importance of early maturity of maize crop in view, the present study was conducted to evaluate different maize hybrids for maturity and related traits in the geographical location of Khyber Pakhtunkhwa. The experiment was conducted at The University of Agriculture, Peshawar during the cropping season of 2016. Randomized ...
Abu ul Hassan Faiz1,*, Fakhar-i-Abbas2 and Lariab Zahra Faiz2
... study provides baseline abiotic soil data for conservation needs and harboring of studied species.
...
Tasleem Akhtar*, Muhammad Asif Aziz, Muhammad Naeem, Muhammad Sheraz Ahmedand Imran Bodlah
...up>Feb, 2015). Among the abiotic environmental factors, temperature had a strong, significant and positive correlation with the foraging activity of A. mellifera on B. napus (r= 0.766; P= 0.0037 **), whereas relative humidity and rainfall had significantly negative correlation (r= -0.759; P= 0.0041 **, r= -0.715; P= 0.0089 **).
... 
Muhammad Tariq*, Raja Muhammad Omer**, Muhammad Ashraf Mian*, Obaid Ur Rehman***, Amjad Tahir Virk and Kazim Abbass**
PROMOTING CERTIFIED SEED AVAILABILITY OF WHEAT (TRITICUM AESTIVUM L) THROUGH PUBLIC-PRIVATE PARTNERSHIP AND ITS IMPACT ON YIELD IN RAINFED AREAS
... the plants to withstand abiotic stress especially drought during the crop season. The seed multiplication of crop varieties of rainfed areas can be done in irrigated areas to ensure the quality of seed and its availability in rainfed areas, which ultimately will increase the income of the farming community of the area....
Muhammad Zeeshan Majeed1,2,*, Abu Bakar Muhammad Raza2, Muhammad Afzal2,Hafiz Salah-ud-Din2, Imtiaz Sarwar2, Muhammad Yahya2 and Khurram Shehzad3
...ly respond to biotic and abiotic perturbations in soil profiles, different land-use systems have different community assemblages of macroinvertebrates. This study was conducted to determine the impact of different land-use types viz. natural (grassland, forest/silviculture, barren) and agricultural (lemon, guava, lychee orchards, rice-wheat crop) lands on soil macroinvertebrate fauna. Random sampling was done in winter 2015 and summer 2016 using monolit...
Farhan Ahmad1,*, Muhammad Waris Sanjrani1, Shah Nawaz Khuhro1, Asif Sajjad2, Abid Ali3, Rashad Rasool Khan3, Farooq Ahmed3 and Junhe Liu4,*
...asitism.
...
Fiaz Ahmad1, Mumtaz Hussain2, Ghulam Abbas1, Muhammad Jawad Asghar1 and Muhammad Rizwan3*
...ly affected by different abiotic stress especially lead and water stress. Therefore, present study was conducted with the aim to investigate the response of two mungbean varieties to three different Pb2+ concentrations under two water stress conditions. Different morpho-physiological and yield traits were studied. Both varieties showed gradual reduction in morphological traits at increasing concentration of lead and water stress. Moreover, morphological traits...
Muhammad Haroon Hullio1,4, Abdul Ghani Lanjar2, Abdul Rahman Dhuyo3, Imran Khattri4 and Agha Mushtaque Ahmed4*
... booting) with effect of abiotic factors (temperature and relative humidity). In last, the varietal screening of 30 local rice varieties in term of pest population was observed. The data were collected for two rice growing seasons 2012 to 2013. In results, the maximum mean population of 15.25 WBPH/25 hills at 38 0C with 50% relative humidity was observed in district Badin in the first week of August, 2012. The correlation results regarding mean population of W...
Fan Shuli1*, Ameer Hussain Jarwar1,3, Xiaoyan Wang2, Long Wang1 and Qifeng Ma1
...ction more vulnerable to abiotic and biotic menace. ...
Sabahat Noor*1, Shaukat Ali1, Hafeez-ur-Rahman1, Farhatullah2 and Ghulam Muhammad Ali1
... in Pakistan. Biotic and abiotic stresses severely affect the yield of this crop and require special attention to rectify the production loss. Among various abiotic stresses, drought and soil salinity have the most adversarial effect on wheat production. In this study the T2 transgenic (At-DREB1A) and non-transgenic line of lasani-08 from single transformation event was exposed to 15 days drought and different levels of salt...
Umair Riaz1*, Muhammad Ali Kharal2, Ghulam Murtaza3, Qamar uz Zaman4, Sana Javaid4, Hina Ahmed Malik3, Humera Aziz3 and Zafar Abbas1
...gn: justify;">Biotic and abiotic stresses adversely upset plant growth and development via nutrient deficiencies, hormonal imbalances, ion toxicity as well as osmotic and oxidative anxiety. The most effective mechanism is the biosynthesis of secondary metabolites at cellular level which included organic compounds that help plants to cope with stress conditions by reducing the intensity of stress through enhancing antioxidants activities, detoxifying toxic ions...
Mujahid Niaz Akhtar* and Amjad Farooq
...ber. Correlation between abiotic factor and bollworms infestation depicted non-significant negative correlation with rainfall and evening relative humidity while negative significant with minimum temperature. Linear regression equation is used to predict bollworm population to minimize economic losses.
...
Uzma Rafi*, Asmat, Muqaddes Niaz, Syeda Shazia Bokhari and Aisha Waheed Qurashi*
...bes to adhere to various abiotic and biotic surfaces showing chances of infection. Present study aims to check biofilm formation and auto aggregation potential of the bacteria associated with cockroaches. For this purpose, cockroaches were captured from house sewerage and two bacterial strains CXA1 (Planomicrobium chinense) and IM2 (Alkaligenes faecalis) were isolated from external surface and rectum portion of cockroach, respectively. Bacterial ...
Muhammad Khuram Razzaq1,2*, Saeed Rauf1, Mohsin Khurshid3, Shahid Iqbal1,4, Javaid Akhter Bhat2, Ayaz Farzand5, Adeel Riaz1,6, Guangnan Xing2 and Junyi Gai2
...ceptible genotypes under abiotic stresses. High heritability in the segregating generation warrants good selection response. Moreover, magnitude and type of genetic variation associated with pollen viability also important in improving the trait and breeding procedures to be adapted for the improvement of trait per se. Genetic studies results under heat stress in sunflower showed additive to partial dominance towards higher pollen viability in the inheritance ...
Muneer Abbas1*, Muhammad Ramzan1, Niaz Hussain1, Abdul Ghaffar1, Khalid Hussain1, Sohail Abbas2 and Ali Raza3
...ections in relation with abiotic factors based on marginal cost benefit ratio. Results indicated that total 32415 insect’s captures were made with >26 insect species including 4 species of bio control agents. Helicoverpa armigera, Spodoptera litura, Agrotis Sp., Bemesia tabaci and Microtermes Spp. were major pests of gram and mungbean attracted in light traps. May, June and July were hottest months of the year with highest population captures of 2892,...
Hala Rajab1, Muhammad Sayyar Khan1*, Safdar Hussain Shah1 and Syed Mehar Ali Shah2
...t’s survival under abiotic and biotic stresses. Cysteine (Cys) is the first organic molecule in the cell containing reduced sulfur and acts as a precursor for many sulfur-containing compounds including Glutathione (GSH). GSH functions to protect the plants against different forms of stresses. In this study, the feedback-insensitive serine acetyltransferase (SAT); a rate-limiting enzyme for Cys biosynthesis from tobacco i.e. NtSAT4 was successfully cloned...
Sibgha Noreen*, Sumrina Faiz, Muhammad Salim Akhter, Kausar Hussain Shah
...djustment and to enhance abiotic stress tolerance in plants. This study was aimed to examine mitigation effects of different osmoprotectants (salicylic acid, ascorbic acid, proline and their admixture) @ 200 mgL-1 on sunflower (Helianthus annuus L.) grown under saline environment (150 mM NaCl). The results showed that salinity stress (150 mM) resulted into significant decrease in biomass accumulation of sunflower up to 50%, while it was improved by 80% in cont...
Betül Ayça Dönmez, Sarbesh Das Dangol and Allah Bakhsh*
... to different biotic and abiotic stresses, specially in diploid potato and to redirect the breeding program away from tetraploids to the diploids. We aimed to develop the protocol for transformation of Solanum chacoense diploid M6 potato using tetraploid S. tuberorsum cv. Desiree as a control using five different Agrobacterium strains harboring pBIN19 binary vector that further contains gusA gene, interrupted by an intronic sequence, under the control of 35S C...
Nosheen Noor Elahi1, Muhammad Shafique1, Muhammad Imtiaz2, Umer Farooq3* and Muhammad Rashid1
...fy;">Salinity is a major abiotic stress that reduces the plant productivity. The plant growth promoting rhizobacteria (PGPRs) play important role in eliminating the effect of salinity. Cicer arietinum L. is an important legume crop having high quantity of proteins. In the present study, four varieties (CM44, CM91, CM98 and CM2000) were grown in the presence and absence of PGPR inoculated media and nitrogen in different salinity levels (20, 50, 100, 200 and 300...
Muhammad Medrar Hussain*, Asad Jan* and Sayyar Khan Kazi
...se, drought is a serious abiotic stress effecting rice productivity. Therefore, the current study was designed to know the role of OsTZF8 gene in conferring tolerance to drought stress. For this purpose, OsTZF8 gene was over-expressed in Oryza sativa subspecies indica variety Swat-1. Through Agrobacterium mediated transformation, OsTZF8 gene (pBIG-Ubi-OsTZF8) was successfully transferred to rice calli. From these rice calli transgenic plants were regenerated a...
K. Osei1† , A. I. Adama1 , E. C. Tagoe2 and J. Sackey-Asante1
Biochar effect on nematodes and insects population density, soil improvement and yield of okra
...ldwide is constrained by abiotic and biotic factors. Chemical fertilizers are usually used to solve soil infertility problems. However, chemical fertilizers are expensive and when applied continuously, degrade agricultural lands (Savci, 2012; Bhattacharyya et al., 2015). Biotic factors such as plant parasitic nematodes (PPN) and foliar insects have been implicated as major constraints to okra production (Asare-Bediako et al., 2014b). The attack of root-knot ne...
Zubia Rahim1, Gulnaz Parveen1*, Salma Gul2 and Khushnood-ur-Rehman3
Ameliorating Effects of Salt Stress (KCl, NaCl) on Growth and Germination Parameters of Pearl Millet (Pennisetum americanum)
...ify;">Plants facing many abiotic stresses in which salinity is considered as most pronounced factor to effect the plant growth. This research was performed to assess the effects of NaCl, KCl, a mixture of NaCl + KCl in various concentrations on the growth and germination of Pearl millet (Pennisetum americanum), locally named as Bajra. Five seeds sown in petri dishes to observe the radical, plumule length and germination percentage after treatments to 100, 150,...
Ghulam Rabbani1, Uzma Javed1*, Javed Iqbal2, Ruqeah Mustafa3, Ghulam Shabbir2 and Fida Hassan Shah4
Barani Mash a Newly Developed Disease Resistant and High Yielding Mash Cultivar for Rainfed Areas of Punjab, Pakistan
...usceptible to biotic and abiotic stresses. The newly developed mash cultivar “Barani Mash” is an elite mash cultivar with yield potential of 1743 kg/ha. This cultivar has resistance against diseases and lodging, the pod size is medium and 100-seed weight is 4.73 g. It has been developed through screening from the local material. It was further evaluated in yield trials for six years from 2012 to 2016. The line 11CM-707 had higher yield than check c...
Muhammad Rizwan1*, Jehanzeb Farooq1, Muhammad Farooq1,2, Aqeel Sarwar4, Abid Ali3, Farrukh Ilahi1, Muhammad Asif1 and Ghulam Sarwar1
Quantitative Studies in Upland Cotton (Gossypium hirsutum L.) using Multivariate Techniques
...olerance with respect to abiotic and biotic stresses and enhanced fiber quality. Forty five elite lines of cotton were used to evaluate the genetic variability for fifteen parameters viz., plant height (cms), days taken in 50% flowering, monopodia plant-1, sympodia plant-1, boll weight (g), No. of bolls plant-1, ginning out turn (%), lint index(g), seed index(g), 2.5 percent span length(mm), bundle strength(g/tex), micronaire (µg/in), fibre elongation (%...
Inam Ul Haq1*, Humara Umar2, Naeem Akhtar3, Muhammad Azhar Iqbal2 and Muhammad Ijaz1
Techniques for Micropropagation of Olive (Olea europaea L.): A Systematic Review
...eristics like biotic and abiotic resistance with high yield and premium quality olive oil. However, the commercial micropropagation of olive trees is currently not enough because of production cost and globally; it is mostly used for research and development on various aspects of olives. In this review, efforts are made to document the different techniques for successful initiation of olive micropropagation techniques because presently in Pakistan this techniq...
Wenyou Huang1, Dan Yü1, Song Huang1,2, Jian Xiao2, Ping Qi2, Anhua Song2* and Zhen Huang1*
...red by negatively active abiotic factors including high temperature, desiccation and UV irradiation. Selecting isolates with high UV tolerance and virulence is important in improving the efficacy and utility of fungal insect pathogens as insect biological control agents for use under field conditions. UV-irradiation of Metarhizium lepidiotae, coupled to growth selection, second metabolites change and insect bioassays using Plutella xylostella lar...
Muhammad Rashid, Mahmood Ahmad Sajid, Nosheen Noor Elahi, Sibgha Noreen and Kausar Hussain Shah*
...o";">Drought is key abiotic stress that reduced crop growth, development and yield. While several physiological processes are played role in plant adaptations to drought stress. However, antioxidant defense system and lipid peroxidation play a key role in drought tolerance. The current study was intended to investigate physiological adaptations for drought tolerance in different wheat varieties. Three weeks old seedlings of each wheat cultivar were challe...
Ijaz Haider1*, Muhammad Akhtar1, Ali Noman2 and Muhammad Qasim3
...trap. The effect of some abiotic factors like temperature, relative humidity and rainfall on the adult population of these pests was also studied. The population of these pests was monitored on the light trap from March to November from 2000 to 2014 in rice wheat cropping system. Yellow stem borer (YB), white stem borer (WB) and pink stem borer (PB) first appeared on the light trap in March when average temperature was 18°C. YB and WB had first peak popula...
Huda S. Darwish 1, Om-hashem M. El-Banna2, Mohamed S. Abbas3, Hoda M. Waziri 1, Maisa A. Awad1
...ected by many biotic and abiotic stresses which
became major limiting factors for growth, fruit yield quality and quantity. Tomato ringspot virus
(ToRSV) is considered one of the most devastating members of the genus Nepovirus and distributed in
most parts of the world and can infect herbaceous, ornamental and woody species including tomato,
tobacco, grape, apple, peach, cherry, apricot and raspberry. Both of sod...
Javed Anwar Shah1, Azhar Iqbal1, Muhammad Tariq Mahmood2, Muhammad Aslam3, Muneer Abbas4 and Ilyas Ahmad5*
...faces several biotic and abiotic stresses. Among biotic factors chickpea blight is most important factor responsible for drastic decline in productivity. Other disease management approaches are not more efficient and economical except to exploit the host plant resistance mechanism. The present study for screening of 60 elite chickpea lines was carried out for two consecutive years during 2017-18 and 2018-19 under controlled environment at pulses research Insti...
Muhammad Zubair Ishaq1, Umar Farooq1, Muhammad Asim Bhutta2*, Saghir Ahmad2, Amna Bibi2, Hafeez UR Rehman3, Umar Farooq3, Javaria Ashraf4 and Samaria Nisar4
...imate change, biotic and abiotic factors, unpredictable rain patterns, high temperatures. Therefore, it needs to identify cultivars with suitable sowing time in a specific environment. The objective of this experiment was to evaluate the yield potential of different cotton genotypes under different sowing dates (early to late). In 2019 and 2020, a field experiment was conducted at Cotton Research Station, Sahiwal, Pakistan. The experiment was conducted using a...
Ayu Suci Wulandari1, Siwi Indarti1,2*, Muhannad Illayan Massadeh3 and Nguyen Van Minh4
...ce of elevation and soil abiotic factor to abundance and diversity of plant parasitic nematode in garlic crops, this research was conducted Sampling was carried out in four locations: Brebes, Magelang, Tegal and Temanggung, Central Java, Indonesia. Samples of soil, roots and tubers were collected. Soil abiotic factors are taken measurements such as pH, temperature, and organic matter. The altitudes are measured using t...
Aiman Amur1*, Nasreen Memon1, Pervaiz Khan2 and Fozia Gull3
...ly. This relationship of abiotic factors clearly shows that pest emergence increase with peak season of host and ecology of field. This research work indicated about pest alarming occurrence time, correlation of environmental factors and suggesting future pest management strategies for controlling Pest.
...
Mahmoud M.A.Youssef and Wafaa M. A. El-Nagdi
...>The artificial mediated abiotic components such as soil temperature, dry heat, irradiation and CO2 can work for controlling plant-parasitic nematodes. Higher soil temperatures with transparent or black plastic cover reduced citrus nematode, Tylenchulus semipenetrans on navel orange and reniform nematode, Rotylenchulus reniformis on sunflower. Also, dry heat was used to control rice root nematode, Hirschmanniella oryzae on rice soil and root and wheat soil. Se...
Muhammad Rizwan, Abu Bakar Muhammad Raza, Muhammad Zeeshan Majeed*, Muhammad Arshad
...its correlation with the abiotic weather factors. The findings of this study could be useful for local citrus growers in devising timely and suitable control strategies against D. mangiferae infestations on citrus plantations.
... 
