International Journal of
Plant Physiology and Biochemistry

  • Abbreviation: Int. J. Plant Physiol. Biochem.
  • Language: English
  • ISSN: 2141-2162
  • DOI: 10.5897/IJPPB
  • Start Year: 2009
  • Published Articles: 111

IJPPB Articles

Influence of the harvest age on fructan content and fructosyltransferase activity in Agave atrovirens karw pine

April 2012

The effect of age on the composition and concentration of non-structural carbohydrate was determined in the “pine” or “head” of Agave atrovirens Karw. The influence of plant age on the 1-FFT enzymatic activity, the electrophoretic pattern of proteins and the non-structural carbohydrate yield were also determined to establish the optimum age for harvest. The carbohydrate composition of 6...

Author(s): González-Cruz Leopoldo, Jaramillo-Flores María Eugenia, Bernardino-Nicanor Aurea and Mora-Escobedo Rosalva

Inter correlation between soil properties and growth of Azadirachta indica in various types of plantations of Jodhpur region (Rajasthan, India)

April 2012

Physico-chemical properties do not vary rapidly for short distance in arid and semiarid regions in absence of plantation or some manual intervention. In case of barren land, it is difficult to enhance soil health and its productivity until and unless a large quantity of fertilizer and irrigation facilities are employed. Application of high dose of fertilisers and insecticides result in short-term increase in production,...

Author(s): Verma Puneet and Kishan Kumar V. S.

Ecophysiological responses of Melaleuca species to dual stresses of water logging and salinity

March 2012

The combined effects of salinity and water logging on growth and ecophysiological characteristics of three Melaleuca species were investigated in a glasshouse study. Salinity treatments were imposed from day 28 at 0.3, 0.8, 2 and 5 g NaCl kg-1 soil. Shoot Na+ concentration and Na+/K+ratio for M. thyiodes at all salt level and of M. nesophila at 5.0 g NaCl...

Author(s): Nurul Aini, Emmanuel Mapfumo, Zed Rengel and Caixian Tang

Acidity of tank bromeliad water in a cloud forest, Cusuco National Park, Honduras

March 2012

Phytotelmata are plant-held water bodies housing complex aquatic invertebrate communities drawing attention for their suitability as breeding sites for disease bearing mosquitoes, and the unique fauna occurring in these habitats. Despite the human and scientific relevance, relatively little information is available on the water characteristics in these habitats and these scarce references consist only of isolated point...

Author(s): Jocque M., and Kolby J. E.,

Cassava cyanocarbohydrate metabolism and proposed prehistoric symbionts

March 2012

Plant/animal symbiosis produces interacting plant food parts that bear selective pressure to produce specific behaviors that aid the plant’s reproduction and/or survival. The cassava plant is here proposed to have created such a transactional food part in the cyanogenic carbohydrate tubers that acts through a sirtuin-activating pathway. The effect of exclusive cassava cyanocarbohydrate metabolism at the cellular...

Author(s): Van K. Golay

Protection against heat stress in wheat involves change in cell membrane stability, antioxidant enzymes, osmolyte, H2O2 and transcript of heat shock protein

March 2012

Terminal heat stress causes an array of physiological, biochemical and morphological changes in plants, which affect plant growth and development. In present investigation, real time quantitative expression analysis of HSP90 gene in root showed a maximum of 2.5 fold increase in the transcript level during seed hardening stage. Similarly, in flag leaf 4.5, 4.3 and 6.5 fold increases in the transcript level were observed...

Author(s): Ranjeet R. Kumar, Suneha Goswami, Sushil K. Sharma, Khushboo Singh,Kritika A. Gadpayle, Narender Kumar, Gyanendra K. Rai, Manorama Singh and Raj D. Rai

Comparison of essential oil composition in wild and cultivated populations of Thymus pubescens Boiss. & Kotschy ex Celak. from Iran

March 2012

Thymus pubescens Boiss. and Kotschy ex Celak. (Lamiaceae) is a grassy and permanent herb which grows wild in some regions of Iran including West Azarbaijan province. Content, composition and antioxidant activity of the essential oils of both wild populations and cultivated ones were compared in this study. The aerial parts of T. pubescens at the beginning of the flowering stage were collected...

Author(s): M. Pirigharnaei, R. Heydari, S. Zare, J. Khara and R. Emam-Ali sabzi

Efficacy of seawater salinity on osmotic adjustment and solutes allocation in wheat (Triticum aestivum) flag leaf during grain filling

February 2012

Two wheat (Triticum aestivum L.) cultivars (salt sensitive cultivar, Gemmieza-9 and salt resistant cultivar, Sids-1) subjected to different seawater salinity (10 and 25%). Osmotic pressure (OP), osmotic adjustment (OA) and solutes accumulation (TSS, TSN, proline, organic acids, glycerol and inorganic ions (Na+, K+, Ca2+, Mg2+ and Cl-) were quantified in flag leaf during grain-filling ...

Author(s): Heshmat S. Aldesuquy, Zakaria A. Baka, Omar A. El-Shehaby and Hanan E. Ghanem

Genotoxicity and molecular screening of proteins in root tip cells of Trigonella foenum- graecum (Fenugreek var- Azad) under cadmium stress condition

February 2012

Plants are unique in their ability to serve as in situ monitors for environmental genotoxins.Trigonella is receiving global attention due to rare medicinal properties of significance. Cadmium is one of the most toxic environmental pollutant affecting absorption and transportation of essential elements, disturb the metabolism, growth and reproduction. Present experiment was designed to investigate the...

Author(s): Towseef Mohsin Bhat, Sana Choudhary, MYK Ansari, Alka, and Rumana Aslam

Regulation and properties of glucose-6-phosphate dehydrogenase: A review

January 2012

Glucose-6-phosphate dehydrogenase (G6PD) is the key enzyme of the pentose phosphate pathway that catalyzes the conversion of glucose-6-phosphate to 6-phosphogluconolactone in presence of NADP+. G6PD is an enzyme of vital importance because of its role in various haemolytic disorders and its potential as a regulator for various biosynthetic pathways. NADPH is the important product of the reaction and is used for the...

Author(s): Siddhartha Singh, Asha Anand and Pramod K. Srivastava

Detrimental impact of triplet oxygen in biosphere

January 2012

Oxygen is essential for the existence of all forms of life since it is an important constituent of almost all biologically important compounds including DNA and serves as blood purifier. Simultaneously oxygen also induces a number of degradation processes through the generation of reactive oxygen species like superoxide radical anion, singlet oxygen, hydroxyl radical, hydrogen peroxide etc. The reactive oxygen species...

Author(s): Sunakar Panda

Comparative study of different protocols for isolation of RNA from polysaccharides and polyphenolics rich plant tissues

January 2012

The isolation of high quality ribonucleic acid (RNA) from plant has been a difficult problem due to presence of high amount of polysaccharides, polyplenolics and nucleases that mediate RNA degradation. After comparative analysis of four popular protocols for RNA isolation, a modified method was developed which gave maximum yield with purity. Modified method is not only suitable for the isolation of intact RNA from...

Author(s): Subodh Gupta, A. K. Verma and Laxmi Chand

Abundant CD4 Th-2 cytokine stimulation by medicinal plant Pongamia pinnata Linn. on human peripheral blood mononuclear cell (PBMC)

January 2012

Immune cells produce cytokines in response to various stimuli. The initial cytokine milieu at which immune cells interact have a positive impact on the outcome of the immune response generated. Modulations or polarizations of cytokines are known to affect the outcome of the disease. Immunotherapy is a novel approach to combat cytokine mediated diseases and several medicinal plants are shown to possess immune modulatory...

Author(s): M. Manikannan, P. Durgadevi, S. Subramaniyan and Elanchezhiyan Manickan

Effects of organic and inorganic fertilizer on the productivity of Amaranthus cruentus in an ultisol environment

December 2011

A field study was conducted at the Teaching and Research Farms of the University of Benin, Benin City, Nigeria in 2007 and 2008 to evaluate the effect of palm oil mill effluent and NPK fertilizer on the performance of Amaranthus cruentus. The trial involved three levels of palm oil mill effluent (0. 5 and 10 t ha-1) and three levels of NPK (0, 150 and 300 kg ha-1) using a factorial arrangement fitted into...

Author(s): Law-Ogbomo, K. E., Remison, S. U. and Jombo, E. O.

Evaluation of salicylic acid (SA) application on growth, osmotic solutes and antioxidant enzyme activities on broad bean seedlings grown under diluted seawater

December 2011

Exogenously applied salicylic acid has been shown to be an essential signal molecule involved in both local defense reactions and induction of systemic resistance response of plants after salt stress. Our study was aimed at evaluating the foliar spray with different levels (0.0, 0.5 and 1.0 mM) of salicylic acid (SA) on broad bean (Vicia faba L) seedlings grown under diluted seawater on growth and some related...

Author(s): Mohamed Mahgoub Azooz, Ashraf Mohamed Youssef and Parvaiz Ahmad

Biochemical changes in chickpea caused by Fusarium oxysporium f. sp ciceri

November 2011

Study was conducted to see the changes in ascorbic acid, free amino acids, proline and totalphenol content at different stages of infection of wilt disease in chickpea (Cicer arietinum L) roots tissues. The results indicated that total phenol content was significantly higher in root of all the cultivars...

Author(s): RATHOD P. J. and Vakharia D. N.

Growth, photosynthetic efficiency, yield and swelling factor in Plantago indica under semi-arid condition of Gujarat, India

November 2011

An experiment was carried out with Black Isabgol (Plantago indica L) an annual herb cultivated recently as a medicinal plant at Directorate of Medicinal and Aromatic Plants Research (DMAPR) in India, aiming on the effect at different stages of growth under the influence of different sowing dates and spacings on growth, seed yield and seed swelling factor as a part of good agricultural practices (GAP). No detail...

Author(s): Manish Das

Mineral nitrogen affects nodulation and amino acid xylem transport in the Amazonian legume Inga edulis Mart

November 2011

The characteristics of symbiotic nitrogen fixation in tropical forest tree species have received little attention but it is well established that mineral N negatively affects symbioses in crop legumes such as soybean and common bean. Nevertheless, ecophysiological mineral nitrogen dynamics in terms of nitrogen xylem transport of native Amazonian legume has been not documented so far.The objective of this study was to...

Author(s): Rebeca Patricia Omena-Garcia, Gilberto Costa Justino, Ladaslav Sodek and José Francisco de Carvalho Gonçalves

Physiological responses of Chenopodium quinoa to salt stress

November 2011

Physiological responses to salt stress were measured in Chenopodium quinoa, a regionally important halophytic staple crop of Andean South America.  In a greenhouse experiment, salt (NaCl) was applied to quinoa varieties, Chipaya and KU-2, and to the model halophyte Thellungiella halophila to assess their relative responses to salt stress. Height and weight data from a seven-week time course demonstrated...

Author(s): A. Jason Morales, , Prabin Bajgain, Zackary Garver, Peter J. Maughan, Joshua A. Udall

Impact of diatomite nutrition on two Trifolium alexandrinum cultivars differing in salinity tolerance

November 2011

Salt toxicity is one of the major problems in modern agriculture. Plants can employ silicon as a protective agent against stresses and the mechanisms of this process remain unknown. Two Egyptian clover (Trifolium alexandrinum) cultivars differing in salinity tolerance were used (Helaly, salt sensitive and Sarw1, salt tolerant). They were grown in pots filled with normal and saline soil (2000 and 3000 ppm) in the absence...

Author(s): Mona M. Abdalla

Effects of NaCl on Na+, Cl- and K+ ions accumulation in two sugarcane (Saccharum sp.) cultivars differing in their salt tolerance

October 2011

The effects of salt on growth and ions accumulation were investigated in two sugarcane (Saccharum sp.) cultivars, CP66-346 (salt-tolerant) and CP65-357 (salt-sensitive). Young plants of these cultivars were exposed to four NaCl concentrations (0, 17, 34 and 68 mM). Na+, Cl- and K+ions concentrations were quantified after 2 weeks of stress. NaCl effect resulted in plant growth reduction in both cultivars but cv....

Author(s): Christophe Bernard Gandonou,, Fidèle Bada, Simplice Léopold Gnancadja, Jamal Abrini and Nadia Skali-Senhaji

Biochemical response of two Atriplex species (Atriplex halimus L. and Atriplex canescens (Pursh) Nutt.) under salt stress conditions

October 2011

Soil salinization is an environmental problem that many world regions must fight; it is one of the major plants abiotic stress factors. In fact, in addition to mineral imbalance and toxicity of certain ions, salinity causes, in consequence of osmotic pressure increase, water absorption decrease which leads to stress. In the current study, the behavior and response of two Atriplex species, A....

Author(s): Ouiza DJERROUDI, Samia BISSATI and Moulay BELKHODJA

Effects of aqueous root extract of Treculia africana on blood glucose, lipid profile and body weight changes of streptozotocin-induced diabetic and normal rats

October 2011

In this study, the effects of aqueous root extract of Treculia africana on blood glucose, triglycerides, total cholesterol, LDL-cholesterol, HDL-cholesterol and body weights of both STZ-induced diabetic and normal rats were investigated. Oral administration of aqueous root extract of Treculia africanaat a dose of 200 mg/kg body weight per day, for a period of 14 days, caused a significant (p < 0.05)...

Author(s): Omage Kingsley, Onoagbe, O. Iyere, Erifeta O. Georgina, Uhunmwangho S. Esosa, Ajeigbe O. Kazeem and Amegor O. Frank

Fatty acids and phytochemical contents of different coconut seed flesh in Nigeria

October 2011

Some positive health benefits have currently been attributed to coconut intake. An attempt has been made to determine the fatty acids and phytochemical contents of coconut seed flesh collected from the different parts of Nigeria. The fatty acid composition was determined by gas chromatography while phytochemical content was detected using the polar and non polar solvents. The findings revealed that...

Author(s): Odenigbo, U. M. and Otisi, C. A. O.

The effect of 28-Homobrassinolid in reducing the effects of drought in savory herbs

October 2011

Drought stress is the most significant factor that reduces crop yield and is used as a drug. Using materials such as a plant growth regulator (Brassinosteroids) is a practical solution to reduce losses. Brassinosteroids steroidal plant compounds are broad biological activities that are able to increase plant performance through changes in plant metabolism and in protecting them against environmental stress. In a...

Author(s): Mahdi Eskandari

Expression of novel ascorbate peroxidase isoenzymes of wheat (Triticum aestivum L.) in response to heat stress

October 2011

Active oxygen species are produced by some of the important organelles like chloroplast and mitochondria through their electron transport chain even under normal environmental condition but the rate of active oxygen species (AOS) production increases many times in response to different abiotic stresses. Plants has antioxidant enzymes system like ascorbate peroxidase (APX), catalase, SOD, GR etc. which helps in...

Author(s): Kumar, R. R., Goswami, S., Kumar, N., Pandey, S. K., Pandey, V. C., Sharma, S. K., Pathak, H. and Rai, R. D.

Response of green alga Ulothrix zonata to nitrogen and humic substances

September 2011

Nitrogen and phosphorous are essential elements to aquatic biota. Different types of humic substances (HS), such as humic acid (HA) and fulvic acid (FA) have impact on the freshwater nutrients. The aim of the study was to examine how the presence of humic substances may affect nutrient availability to the growth of Ulothrix zonata (Weber and Mohr) Kutz. Samples were incubated on different nutrient treatments:...

Author(s): Asha Udayamali Meegolle Lokuhewage

Response of pearl millet (Pennistetum glaucum) cultivars to post-flowering drought stress

September 2011

Two pearl millet (Pennisetum glaucum (L.) R. Br.) cultivars (Dadda and Shella) were evaluated at post-flowering stage for drought tolerance based on morpho-physiological criteria. The experiment was laid down in a randomized complete block design which comprised of a combination of two factors (cultivars and three water stress regimes; (well watered (36%), moderately stressed (21%) and severely stressed (9%)). Data...

Author(s): Yalew Addisie and Gebre-Egziabher Yemane

Palm oil and rice bran oil: Current status and future prospects

August 2011

The continued demand for edible oils by the ever increasing population makes it pertinent to explore new sources. In this direction, two new edible oils namely palm oil and rice bran oil have been subjected to nutritional and toxicological evaluations of their chemicals constituents. An attempt has been made in this article to assess the acceptability of the two oils based on the various investigations that have been...

Author(s): Kusum R., Bommayya H., Fayaz Pasha P. and Ramachandran H. D.

Heavy metal phytoremediation by Commelina benghalensis (L) and Cynodon dactylon (L) growing in Urban stream sediments

August 2011

Urbanisation and industrialization lead to heavy metal pollution in the Nakivubo drainage ecosystem. The objectives of this study were to determine heavy metal concentrations and distribution in Commelina benghalensis (L.) and Cynodon dactylon (L.) that grows in different polluted sites along the urban stream sediments of the Nakivubo drainage ecosystem in Kampala, Uganda. To investigate the...

Author(s): K. Sekabira, H. Oryem–Origa, G. Mutumba, E. Kakudidi and T. A. Basamba

Comparative study of the major components of the indigo dye obtained from Strobilanthes flaccidifolius Nees. and Indigofera tinctoria Linn.

July 2011

Investigation on the chemical constituents including the chemical structure of major components in the water extracts from Strobilanthes flaccidifolius Nees. and Indigofera tinctoria Linn. was done. It was found that the indigo from fresh leaves of S. flaccidifolius Nees.fermented for three days gave the highest amount of indigo. The thin layer chromatography of the crude extract revealed...

Author(s): Warjeet S. Laitonjam and Sujata D. Wangkheirakpam

Purification and some properties of b-amylase from the nodes of sugar cane, Saccharium offinacium

July 2011

b-amylase (EC, a-1,4–D-glucan maltohydrolase) was isolated and purified from the nodes of sugar cane by using ammonium sulphate precipitation, acid-treatment, gel filtration on Sephadex G-75 and ion exchange chromatography on DEAE-Cellulose.  Purity was ascertained by the presence of a single band of protein on polyacrylamide gel electrophoresis under non-denaturing conditions. The specific...

Author(s): Oyefuga O. H., Adeyanju M. M., Adebawo. O. O. and Agboola F. K.

Investigations on the nutritional and medicinal potentials of Ceiba pentandra leaf: A common vegetable in Nigeria

June 2011

Ceiba pentandra is huge, wide, normally found in wild forest of West Africa. The present study investigated the nutritional and bioactive components of the leaf of the popularly consumed vegetable in some part of Nigeria and other West Africa countries. The proximate analysis and bioactive constituents were determined by standard methods of AOAC, while vitamins A, E, micro/macro elements and fatty acids were...

Author(s): Emmanuel Titus Friday, Omale James, Olupinyo Olusegun and Adah Gabriel

Effect of moisture content and maturity on hardseededness and germination in okra (Abelmoschus esculentus L. Moench)

June 2011

Hardheadedness is induced in the wild and the majority of seeds of the cultivated okra. Seed moisture content was highly significantly affected by cultivar and seed maturity. Seed moisture content within each cultivar significantly decreased with the increase in seed maturity. Averaged over seed maturity, Higairat had the highest moisture content percentage. On the other hand, Afreeta had the lowest moisture content...

Author(s): El Balla M. M. A., Saidahmed A. I. and Makkawi M.

Identification of genes involved in rice seed germination at low temperatures

May 2011

Rice is a model for many genomic studies among crop species. The adaptation to different crop environments is partly the result of traditional breeding combined with molecular assisted selection. Comparative studies between contrasting genotypes can be performed efficiently by the cDNA-AFLP technique, allowing the identification of genes involved in the expression of the target trait. The objective of this study was to...

Author(s): Demócrito Amorim Chiesa Freitas, SilmarTeichert Peske, Francisco Amaral Villela, Paulo Dejalma Zimmer, Paulo Ricardo Reis Fagundes, Fernanda Plucani do Amaral, Elaine Gonçalves Rech and Geri Eduardo Meneghello

Analysis of viscosity of jamun fruit juice, squash and jam at different compositions to ensure the suitability of processing applications

May 2011

Rheological behavior of jamun fruit (Eugenia jambolana) juice, squash and jam at different compositions was studied at the Institute of Food Sciences and Technology, Singh Agriculture University, Tandojam in 2007. LFRA Texture Analyzer of Brookfield Engineering was used to determine the flow properties and consistency of the products. Two indigenous cultivars of jamun (indigenous-V1 and Improved-V2) were exploited for...

Author(s): Muhammad Shahnawaz and Saghir Ahmed Shiekh

Comparative lipid peroxidation, leaf membrane thermostability, and antioxidant system in four sugarcane genotypes differing in salt tolerance

April 2011

Role of plant antioxidant systems in salt stress tolerance was studied in four contrasting sugarcane genotypes. Salt stress imposed at various stages of crop growth resulted in an increase in lipid peroxidation and decrease in membrane stability, chlorophyll fluorescence ratio (fv/fm) and chlorophyll and carotenoid contents. The activity of antioxidant enzymes (ascorbate peroixdase, glutathione reductase, and...

Author(s): R. Gomathi and P. Rakkiyapan

Paraquat toxicity and its mode of action in some commonly consumed vegetables in Abeokuta, Nigeria

April 2011

Paraquat (PQ) is a toxic chemical that is widely used as herbicide in developing countries. This has led to extensive contamination of the environment, foods and food products. Therefore, this study investigated possible occurrence of PQ residues in some commonly consumed vegetables and the mode by which some of them were able to withstand oxidative stress condition associated with PQ toxicity. Levels of PQ residues and...

Author(s): Akinloye O. A., Adamson I., Ademuyiwa O. and Arowolo T. A.

Analysis of brain cell activation by nanosized particles of Ginkgo biloba extract

March 2011

It is quite difficult to treat Alzheimer's dementia, where one of the problems is inadequate absorption of drugs. Revolution in manufacturing drugs is expected by the development of nanotechnology. Animal test was conducted to see whether the Ginkgo biloba extract processed with nanotechnology changed the function of cerebral cortical synapses and hippocampal nerve action. Rats underwent euthanasia 1 month...

Author(s): Shimada Shinji, Tanaka Yasukazu, Waki Hatsue, Kon Kazuo, Iwamoto Machikoand Maruyama Naoki

Effect of irrigation with wastewater and foliar fertilizer application on some forage characteristics of foxtail millet (Setaria italica)

March 2011

In order to study effects of treated wastewater, with complete fertilizer sprayed on some forage quantitative and qualitative characteristics of foxtail millet (Setaria italica), A split plot experiment based on randomized complete block design (R.C.B design) with three replicates was carried out at the Agriculture Institute of Zabol University in south east Iran during 2009 growing...

Author(s): Amir Ahmadi Aghtape, Ahmad Ghanbari, Alireza Sirousmehr, Baratali Siahsar, Mohamadreza Asgharipour and Abolfazl Tavssoli

The effects of spermidine and putrescine polyamines on growth of pomegranate (Punica granatum L. cv ‘Rabbab’) in salinity circumstance

March 2011

Different foliar treatments of spermidine and putrescine polyamines were applied to investigate the responses of the commercial genotype of pomegranate, P. Rabbab, to salinity. Pomegranate cuttings were rooted and planted in the plastic bag that contained sand and perlite medium in a ratio of 1:1 and irrigated with complete Hoagland’s solution immediately. Four salinity levels of irrigation water...

Author(s): Elias Amri, Mohammad Mirzaei, Majid Moradi and Kavoos Zare

Effect of nickel toxicity on the alteration of phosphate pool and the suppressing activity of phosphorolytic enzymes in germinating seeds and growing seedlings of rice

March 2011

To determine the effects of nickel on the phosphate pool and the activity of phosphorolytic enzymes in rice germinating seeds and growing seedlings, rice cvs. Malviya-36 and Pant-12 were germinated for 120 h, submitted to 200 and 400 μM NiSO4 and the level of phosphate pool and the activities of key phosphorolytic enzymes acid phosphatase, alkaline phosphatase and inorganic pyrophosphatase were...

Author(s): R. Maheshwari and R. S. Dubey

The contribution of remobilization of storage materials in wheat yield as affected by potassium iodide (KI)

March 2011

This investigation was conducted to study the accumulation and remobilization of storage materials (carbohydrate) and their contribution to wheat yield by using a split plot design in agricultural and natural resources research station of Torogh, Mashhad in the 2006 to 2007 growing season. The experiment included two levels of water status: 1-normal conditions (full irrigation) and 2- terminal water stress as main plot,...

Author(s): Saeed Farhangi and Masoud Ghodsi

Production of ethanol from cocoyam (Colocasia esculenta)

March 2011

Cocoyam is an edible root crop belonging to the family Araceae. It makes significant contribution both as root crop and vegetable in the diet of mainly Africans people and Nigerians inparticularly. The high percentage of starch was exploited in the production of ethanol. Two hundred grams (200 g) of mashed Colocasia esculenta, gelatinized in a pressure cooker was allowed to undergo two stage enzyme hydrolysis using...

Author(s): W. Braide and R. N. Nwaoguikpe

Effect of drought at the post-anthesis stage on remobilization of carbon reserves in two wheat cultivars differing in senescence properties

February 2011

This study examined the relationship between the senescence induced by water deficits and carbon remobilization during grain filling. Two wheat cultivars (Triticum aestivum L.), Marvdasht and Zagros (sensitive and tolerant to terminal season drought, respectively) grown at a day: night temperature of 22:15°C from anthesis were held as well watered controls (Field capacity), or subject to water deficit (50% FC)...

Author(s): Saeed Saeedipour

The proximate and mineral compositions of five major rice varieties in Abakaliki, South-Eastern Nigeria

February 2011

The proximate compositions were estimated using compositional analysis of Association of Official Analytical Chemists, while the mineral element contents were determined using atomic absorption spectrophotometer. Analysis of variance shows that there is significant difference (p<0.05) in the proximate compositions of the rice varieties studied (Sipi>Faro14>Awilo>Faro15>Canada). No significant difference...

Author(s): Oko A. O. and Ugwu S. I.

Interaction of lycorine with UV-B and kinetin in cucumber (Cucumis sativus L.) Cotyledons

January 2011

Interaction of lycorine, a strong inhibitor of ascorbic acid biosynthesis with kinetin and UV-B radiation has been studied in cucumber (Cucumis sativus L.) cotyledons. Lycorine inhibited hypocotyl growth of seedlings as well as kinetin induced expansion growth of cotyledons in darkness. Exposure to UV-B radiation has similar inhibitory effect on growth. Inhibition of growth by lycorine was accompanied by inhibition...

Author(s): Karishma Jain, Sunita Kataria and K. N. Guruprasad

Adathoda vasica leaf extract induces resistance in rice against bacterial leaf blight disease (Xanthomonas oryzae pv. oryzae)

January 2011

Three plants extracts were used for the management of Xanthomonas oryzae pv. oryzae in vitro. The efficacy of the plant extracts was tested by antibacterial activity and was used as seed treatment to know the enhancement of seed germination and seedling vigour. Beside promising results given, plant extracts were tried under greenhouse studies to test the efficacy in controlling bacterial blight disease...

Author(s): Govindappa M., Umesha S and S. Lokesh

Red blood cell membrane stabilizing potentials of extracts of Lantana camara and its fractions

October 2010

Anti-inflammatory activity of extract of Lantana camara, Linn and its fractions was investigated using stabilization of red blood cell membrane lysing technique. Phytochemically, whole plant extract (WPE) and ethanol fraction (EF) gave positive reactions for the presence of saponins, tannins, flavonoids and cardiac glycosides. The ethyl acetate fraction (EAF) gave reactions for the presence of flavonoids while...

Author(s): O. O. Oyedapo, B. A. Akinpelu, K. F. Akinwunmi, M. O. Adeyinka and F. O. Sipeolu

Effect of leaf area on dry matter production in aerated mung bean seed

October 2010

An area of plant science that is still unexplored is how leaf area affects crop dry matter production due to aeration of seed in osmoticum. In view of this, an experiment was conducted at Agricultural Research Farm of NWFP Agricultural University, Peshawar, Pakistan in the summer of 2003 and repeated in 2004. The seeds of two mung bean cultivars (NM-92 and NM-98) were primed, some for 6 h and others for 12 h in using...

Author(s): Ahmad Khan and Shad Khan Khalil

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