Search Results for : seed germination
Extraction of β-galactosidase and β-glucosidase from the seeds of Tamarindus indica.
The enzymes β–galactosidase and β–glucosidase were extracted from the tamarind seeds using different buffers at different pH. Highest activity was obtained with 10 mM sodium acetate buffer, pH 5.6 and 10 mM tris buffer, pH 7.4. The effect of NaCl and Triton X–100 at different concentrations on the extraction of the enzymes indicated 10 mM […]
Allelopathic potential of Sesbania grandiflora Pers. on germination of Cajanus cajan Millsp. (Redgram) varieties
In the present study, the leaf extracts of Sesbania grandiflora Pers. showed inhibitory effects on seed germination, plumule length, radicle length, fresh and dry weight in redgram (Cajanus cajan Millsp. var. Vamban 2 and Cajanus cajan var. Vamban 3). The allelopathic effect of leaf extracts of S. grandiflora decreased the seed germination of Cajanus cajan […]
Germination performance of some legume crops under varying soil water available capacities
A laboratory attempt was made to evaluate germination performances of three lentil cultivars namely Nineveh, Adlib and Baraka, besides Common Vetch and Mungbeans under varying soil water availabilities. Soils were moistened to 100, 75, 50 and 25% of its water available capacity and were used as germinating media. Germinating seeds in 0% soil AWC depletion […]
Germination performance of some legume crops under varying filter paper moistures
Adverse effects of water stress without ions interactions in Baraka, Adlib and Nineveh lentil cultivars have been investigated. Results showed that germination under saturation (0 AWC depletion %) was the paramount treatment as it manifested the highest values. It profoundly surpassed that of 25, 50, and 75 AWC depletion % in terms of final germination […]
Isolation of phosphate solubilizing fungi from vegetable rhizosphere and their effects on growth of Tomato (Lycopersicon spp.)
Five (5) phosphate-solubilizing mold species isolated from the rhizosphere regimes of vegetable crops were characterized in terms of their solubilizing index (SI) and ability to grow at varying pH values. Solubilization index of isolates ranged from 1.89 (M3) to 2.56 (M6). In culture broth, PSF caused the pH dropped from 7.0 to 4.31 in 12 […]
Allelopathic effect of Oryza sativa L. (Rice) straw on Echinochloa crus-galli L. (Barnyard grass) and Ludwigia octovalvis (Primrose-willow)
This experimental research determined the allelopathic effects of Oryza sativa L. straw filtrate and fine cuttings on the seed germination, seedling emergence, growth, and dry weight of Echinochloa crus-galli L. and Ludwigia octovalvis. It compared the average percent inhibition of Oryza sativa L. (rice) straw fine cuttings treatments against the positive and negative treatments. It […]
Canopy effect of Prosopis juliflora on selected grass species by using soil aqueous extract in Afar Regional State, Ethiopia
Allelopathy effect of Prosopis juliflora canopy soil aqueous extracts on tropical grass species such as Cenchrus cillaris, Paspalidium desertorum and Lintonia nutans were tested under in vitro conditions. Leaf litter falling under canopy soil was collected and tested for allelopathic effects of soil aqueous extract under natural conditions. All the soil aqueous extracts showed significantly […]
Exogenous application of Plant Growth Regulators (PGRs) improves the nutritional status of Maize grown under salinity stress in response to Etiolation and De-etiolation conditions
Plant growth and developmental processes are affected by both absences of light and salinity stress. Light and salinity affect the plant’s essential nutrients by affecting the mineral uptake through the rooting system. A pot experiment was conducted under the ambient condition of Turbat, Balochistan, to explore etiolation and de-etiolation response of maize hybrid (SP-17S23) to […]
Vegetative propagation of Anonidium mannii (Oliver) Engler & Diels (Annonaceae) by leafy stem cuttings in Kisangani, DR Congo
This study tested the influence of substrate type, size surface and application of IBA auxin on rooting of stem cutting leaf of Anonidium mannii, a wild fruit species with low seed germination rate. Two trials were conducted. The first tested three substrate types that are sand, wood sawdust and rice husks. We also tested combinations […]
Effect of media amendments on invivo root and shoot organogenesis of stevia (Stevia rebaudiana L.)
Stevia, also known as sugar leaf or sweet weed, a highly valuable and medicinal plant domesticated recently in many countries of the world. Propagation of stevia usually by stem cuttings root easily, but require high labor inputs. Poor seed germination is one of the factors limiting large-scale cultivation. Therefore, an experimental study was carried out […]