উদ্ভিদবিজ্ঞান [খণ্ড-১] [সংস্করণ-৩] | Udbhidbigyan [Vol. 1] [Ed. 3]

বই থেকে নমুনা পাঠ্য (মেশিন অনুবাদিত)

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[ xviti ] body—transition from apical meristem and root-stem transition, Secondary growth ia thickness in Dicot stem and root, Transition of tissue from primary fo secondary body. Evolution of stele and their classification. Anomalous secondary growth in dicot stem (a preliminary study). Cytology ; Ultastructure (Preliminary idea) and function of cell and its orga- nalles, Chromvosomes—Physical and Chemical make up. Cell divisions, Structural and numerical variability of. chromosomes and their role in evolution—a_briet discussion. Genetics : Mendelism, Chromosomes as the vehicle of inheritance, Mutation, Crossing over and Linkage—an elementary idea. Piant Breeding : Introductory knowledge regarding plant breeding. Paper IV (lant Physiology & Ecology) Full Marks—S0 Plant Physfology : The cell—a physiological approach, Water and Plant 1106, Absorption & translocation of water, Transpiration. Mineral nutrition—source, up- take and translocation in plants. Types and application of manures and_ their physiological role in plants. Respiration and Photosynthesis—biochemical mechane ism and factors affectings. Translocation of foods. Plant growth and develop- ment. Growth substances—their physiological role in flowering, dormancy and germina- tion. Nitrogen metabolism—source, fixation of Nitrogen, outline of protein synthesis. Ecology : Factors affecting vegetation, Plant succession. Plant community. Adaptation of plant with reference to Hydrophytes, Xerophytes and Halophytes. Elementary knowledge of Ecosystem. Pollution and conservation ecology. Paper V : Practical corresponding to theoretical Papers I & Il. Full Marks—S0 Paper VI: Practical corresponding to theoretical papers ITI & IV. Full Marks-—50 Guidelines to teachers regarding the above practical papers. (A copy of those guidelines to be sent to the practical paper-setter) 1. At least 50% of the prescribed genera should be worked out to detail in the Practical classes and the preparations resulting therefrom submitted in examination by each examinee. For unspecified taxa, Practical works are to be done with prepared: materials. 2. Field collections including at least 50 herbarium sheets, field note book, practical note book and prepared slides (at least 10 in paper V and 5 in VI) etc. should be submitted by each examinee without which the candidate will be disallowed from appearing at the examination. 3. Botanical excursions are a compulsory part of the curriculum. Each student must attend at least one long and four short excursions conducted by a teacher during the academic sessions of which one should be to agri-horticultural farm. 4. Identification of specimen with reaspns are to be done upto the family ‘for angiosperms and upto the genus for other groups. * 5. Practical works in anatomy should be done with at least 10 materials in gdditian to typical monocot and dicot root, stem and leaves.



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