Asian Journal of Research in Botany <p style="text-align: justify;"><strong>Asian Journal of Research in Botany</strong>&nbsp;aims to publish high-quality papers (<a href="/index.php/AJRIB/general-guideline-for-authors">Click here for Types of paper</a>) in all aspects of Botany. The journal also encourages the submission of useful reports of negative results. This is a quality controlled,&nbsp;OPEN&nbsp;peer-reviewed, open access INTERNATIONAL journal.&nbsp;</p> Asian Journal of Research in Botany en-US Asian Journal of Research in Botany Effect of Aqueous Extract of Grass Weeds on Seed Germination and Seedling Growth of Vegetable Crops <p><strong>Aim:</strong> Toxicity of grass weeds on crop growth through root exudates occurs naturally but no such study was conducted on the seed germination and seedling growth of some important vegetables of Bangladesh. Therefore, the aim of the research was to evaluate the effects of some grass weed extracts like crabgrass&nbsp; (<em>Eleusine indica</em>), nutgrass (<em>Cyperus rotundus</em>) and bermudagrass (<em>Cynodon dactylon</em>) on the germination and seedling growth of some vegetable crops like okra (<em>Abelmoschus esculentus</em>), radish (<em>Raphanus sativus</em>), water spinach (<em>Ipomoea aquatica</em>) and red amaranth (<em>Amaranthus gangeticus</em>).</p> <p><strong>Study Design:</strong> The experiment was laid out in a Completely Randomized Design (CRD) where each treatment was replicated five times.</p> <p><strong>Place and Duration of Study:</strong> The experiment was conducted in the Plant Ecology Laboratory, Department of Crop Botany, Bangladesh Agricultural University, Mymensingh during July 2015 to November 2015.</p> <p><strong>Methodology:</strong> Paste of 100 g of each of grass weed was prepared with distilled water taking in mortar and pestle. Final volume was made 100 mL which was treated as absolute extract (100%). Five levels of test solutions were prepared from each absolute weed extract. The test solutions were (i) control (distilled water), (ii) absolute weed extract 100% from each weed and its dilution (iii) 50%, (iv) 25%, and (v) 12.5% with distilled water. Ten mL test solution was used to moisten the tissue papers placing them in each petri dish. Theses treated petri dishes were used for the germination and seedling growth of the vegetable seeds at ambient conditions.</p> <p><strong>Results:</strong> Germination percentage in all the vegetable crops was significantly inhibited by the grass weed extracts in a concentration dependent manner. The germination of the seed and seedling growth were decreased with increase in concentration of the extracts and the highest inhibitory effects were observed in 100% concentration. Among the extracts of three different grass weeds, nutgrass showed more toxic effect on the seed germination and seedling growth of test crops than other weeds. Radish seedling was more susceptible than other vegetable crops to the said weed extracts.</p> <p><strong>Conclusion:</strong> The aqueous extracts from grass weeds had inhibitory effect on both germination and seedling growth of vegetable crops.</p> M. A. Awal A. K. M. A. Ahsan M. H. R. Pramanik ##submission.copyrightStatement## 2020-06-01 2020-06-01 1 Leaf Anatomical Evaluation of Some Minor Legumes and Their Correlated Genetic Implications <p>Twelve (12) accessions of six (6) species of the minor legumes obtained from National Centre for Genetic Resources and Biotechnology (NACGRAB) Ibadan, Oyo-state, Nigeria; cultivated and nurtured at the teaching and research farm of the Federal University Oye Ekiti, Ekiti State, Nigeria were assessed for genetic variability and diversity analysis through their leaf anatomical features including the cell wall, cell shape and stomata characters. Epidermal peeling, staining, mounting and photo-micrographying procedures in line with established literature were carried out and data analyzed in percentage method. Result through descriptive statistics showed that Stomata prominence among the plants at both surfaces is in order of paracytic, diacytic, animocytic and anomocytic as 50%, 41.7%, 8.3% and 0% respectively. Cells shapes at both surfaces are also in the same proportion; 58.3% for irregular and 41.7% polygonal. Slight difference occurred in the proportion of anticlinal wall types at both surfaces. 50% curved, 41.7% slightly straight and 8.3% curved/slightly straight at the adaxial surface but 58.4% curved, 33.3% slightly straight and 8.3% curved/slightly straight at the abaxial surface; having cells with more curved anticlinal wall than at the adaxial surface. The Chi-square and probability values of 8.756 and 0.032; 0.667 and 0.414; 5.1818 were recorded at both the adaxial and abaxial surfaces; for stomata type, cell shape and anticlinal wall type of all the accessions. Generally, the accessions displayed recognizable similarities and differences in their epidermal characters that could be used for genetic extrapolation and taxonomic decision.</p> J. O. Agbolade T. P. Olakunle E. O. Obiremi T. Busari J. A. Idowu A. I. Isiaka A. D. Aasa-Sadique ##submission.copyrightStatement## 2020-06-04 2020-06-04 21 26 Survey and Identification of Toxic Plants in the Region of Osfan, Kingdom of Saudi Arabia <p>Wild plants have many benefits for humans, animals, birds, and most of the creatures on earth. Because all organisms live in one environment, insects attack plants from time to time and the plant defends itself by mechanical or chemical methods by forming chemicals that kill insects or reduce insect attacks on them. Thus, these plants become toxic to insects and may be toxic to animals and humans as well. Hence, we find among wild plants a number of them that are toxic to animals and humans. Knowledge of these plants is extremely important, especially for those who graze camels and sheep in order to escape from their danger. What's more, it is very important for a person to recognize it and get away from her. In addition, naturally many of these poisonous plants are used in the manufacture of medicines for a large number of diseases and epidemics. The current study aims to identify poisonous plants in the Osfan region to educate people about their danger and to highlight them for use in the pharmaceutical industry. Thirty-four poisonous plants were registered in the area and toxic chemicals were observed in them, as well as their toxicity, location, and apparent description. In addition, by that, it will be the first step towards building a database for poisonous plants in the region.</p> H. M. Alrawili N. Alrehaili M. S. Aloufi M. Tobaiqy T. M. Elsheikh E. A. Alsherif ##submission.copyrightStatement## 2020-06-02 2020-06-02 11 20