Search Results for : seed germination
Effects of plant growth regulators and NaCl on early developmental stages of Striga hermonthica
A series of laboratory experiments were carried out in order to investigate the effect of plant growth regulators (PGRs) and NaCl on germination and haustorium initiation of Striga hermonthica. Therefore, manipulation of seed germination and pre-attachment stages are mandatory for successful management. In the present study, conditioned Striga seeds in water treated with 2, 4-D […]
New primer generated bacterial mapping and biofertilizing potentiality assessment of Pseudomonas sp. isolated from cowdung
Modern biofertilizer trend is to use of different plant growth-promoting microorganisms (PGPM), isolated from several sources, including rhizosphere. Here we evaluate the plant growth promoting ability of some fluorescent Pseudomonads, isolated from cow dung. Based on different biochemical tests, we select 7 isolates to observe their effect on Cicer arietinum (Bengal gram) seed germination and […]
Effects of storage methods, storage duration and different geographical locations on quality of stored wheat (Triticum aestivum) in sindh, Pakistan
Wheat grain stored in traditional structures was sampled from four selected districts of Sindh from July 2013 to July 2014 at 3 months interval and was analysed for quality deterioration over time. The maximum ambient temperature was noted in district Shaheed Benazir Abad followed by Sukkur, Hyderabad and Badin districts whereas the maximum relative humidity […]
Phytoremediation of cadmium from effected soil using maize plant (Zea mays L.)
In present study, the soil and water were analyzed for cadmium metal. Its concentration in soil and water was 0.21 ml/kg and 0.001 mg/l respectively. For phytoextraction experiment pots were arranged in different groups such as Group A, B, C, D, E and F. To the soil of group A pots no metal was added […]
Effect of sodium azide on growth criteria, some metabolites, mitotic index and chromosomal abnormalities in Pisum sativum and Vicia faba
Seeds of Pisum sativum and Vicia faba were pre-soaked in one of three concentrations (1.0, 2.0 or 4.0 mM) of the mutagenic agent sodium azide (NaN3) for different periods (30 min, 1 h or 2 hs). The impact of these treatments on seed germination, some growth criteria, photosynthetic pigments, some metabolic activities and cytological behavior […]
Allelopathic potential of some essential oils vis-à-vis three noxious weed species invading cereals
This investigation was performed to assess the allelopathic potential of essential oils extracted from seven medicinal and aromatic plants of the Tunisian flora: Artemisia herba-alba Asso., Mentha pulegium L., Rosmarinus officinalis L., Salvia officinalis L., Lavandula officinalis L., Eucalyptus gomphocephala DC. and Foeniculum vulgare Mill.; selected based on ethnobotanical data. To achieve the target, in […]
Role of plant growth promoting rhizobacteria and L-tryptophan on improvement of growth, nutrient availability and yield of wheat (Triticum aestivum) under salt stress
During the present study Pseudomonas sp and Bacillus cereus isolated from rhizospheric soil of halophytic weeds of Khewra salt range were used as bioinoculant on wheat. Aqueous solution of tryptophan was added to the rhizospheric soil @1ug/L after seed germination. Experiment was conducted at Quaid-i-Azam University Islamabad in pots under sterilized condition. Electrical conductivity (EC) […]
Assessment of water quality of drains from irrigation district in a semiarid agricultural zone
Worldwide wastewater is used for agriculture, because of water scarcity. Also, there are increasingly fewer sources of good quality water because of widespread contamination (Ramirez-Fuentes et al., 2002; Rutkowski et al., 2007, Qadir et al., 2010).Agronomic water quality effects on soil, crops and management; major problem with the use of wastewater are salinity, soil permeability […]
Allelopathic inhibitory potential of some crop species (wheat, barley, canola, and safflower) and wild mustard (Sinapis arvensis)
Allelopathic effects of four crops including wheat, barley, canola, and safflower were studied on seed germinations and embryonic growth of wild mustard using different aqueous extract concentrations of the crops. The effects of wild mustard aqueous extracts were also studied on germinations and embryonic growth of the crops. Wild mustard germinations and embryonic growth were […]
Winter wheat (Triticum aestivum L.) allelopathy responses to soil moisture and phosphorus stresses
Field, greenhouse, and laboratory experiments were conducted to evaluate the impact of soil moisture and phosphorus on allelopathic potential of wheat residues, and to study the effect of wheat extract concentrations on the germination and growth of wild mustard (Sinapis arvrnsis L.). The field experimental design was split-plot with 4 replications. The main factor was […]