International Journal of Agriculture and Biology 

About: International Journal of Agriculture and Biology is an academic journal published by Friends Science Publishers. The journal publishes majorly in the area(s): Crop yield & Population. It has an ISSN identifier of 1560-8530. Over the lifetime, 2259 publications have been published receiving 29816 citations. The journal is also known as: IJAB & International journal of agriculture and biology.

Drought stress in plants: A review on morphological characteristics and pigments composition

Abstract: Plant growth and productivity is adversely affected by nature's wrath in the form of various biotic and abiotic stress factors. Water deficit is one of the major abiotic stresses, which adversely affects crop growth and yield. These changes are mainly related to altered metabolic functions, one of those is either loss of or reduced synthesis of photosynthetic pigments. This result in declined light harvesting and generation of reducing powers, which are a source of energy for dark reactions of photosynthesis. These changes in the amounts of photosynthetic pigments are closely associated to plant biomass yield. This review describes some aspects of drought induced changes in morphological, physiological and pigments composition in higher plants.

Rhizobium and phosphate solubilizing bacteria improve the yield and phosphorus uptake in wheat (Triticum aestivum).

Abstract: Rhizobium and phosphorus (P) solubilizing bacteria are important to plant nutrition. These microbes also play a significant role as plant growth-promoting rhizobacteria (PGPR) in the biofertilization of crops. A study was conducted in order to investigate the effects of a rhizobial strain (Thal 8) and a P solubilizer strain (54RB) in single and dual combination with and without P2O5 on wheat in a P deficient natural non-sterilized sandy loam soil. The results of this pot experiment revealed that single and dual inoculation with fertilizer (P2O5) significantly increased root and shoot weight, plant height, spike length, grain yield, seed P content, leaf protein and leaf sugar content of the test crop. It is concluded that single and dual inoculation along with P fertilizer is 30-40% better than only P fertilizer for improving grain yield of wheat and dual inoculation without fertilizer (P) improved grain yield up to 20% as compared to P application.

Chemical composition and antimicrobial activity of essential oil of thyme (Thymus vulgaris) from eastern Morocco.

Abstract: The essential oil from flowering Thyme (Thymis vulgaris L.) an aromatic member of the Lamiaceae family, from Morocco, obtained by hydrodistillation, was analysed by GC/FID and GC/MS. The constituents were identified by their mass spectra and Kovats’ indices. Forty three compounds consisting 97.85% of the total components were identified from the oil obtained with 1% yield. Among those, camphor (38.54%), camphene (17.19%), α-pinene (9.35%), 1, 8-cineole (5.44%), borneol (4.91%) and β-pinene (3.90%) were the major oil components. Essential oil of Thyme was evaluated for its antibacterial activities against six Gram-positive and Gram negative pathogenic bacteria: Staphylococcus aureus, S. epidermidis, Streptococcus sp., Pantoa sp. and Escherichia coli.

Mineral composition of Moringa oleifera leaves, pods and seeds from two regions in Abuja, Nigeria.

Abstract: The mineral composition of the lamina, petiole, seed pod, seed shell, seed kernel powder and seed kernel oil of Moringa oleifera L. from two regions, Sheda and Kuje, Abuja, Nigeria were investigated. The results indicated that Ca, Mg, Fe and Cu in M. oleifera leaves, pods and seeds from Sheda were relatively higher than that from Kuje. Relatively high contents of Ca and Fe were found in the lamina and seed shell of the plant respectively from both regions. The Mg content (0.185 mg mL-1) in the seed kernel oil of moringa from Sheda was significantly lower (P less than or equal to 0.05) than that in the other parts of leaf and seed. The Fe content in the seed shell from Sheda was 0.2436 mg g-1 more than those from Kuje. Toxic element such as Pb was absent in the leaves, pods and seeds of moringa from both locations. This study confirmed that there are variations in macro and trace minerals in moringa leaves, pods and seeds from different locations.