Plant Physiology Laboratory
Laboratory Manual
Stephen F. Austin State University
Fall 2010
Professor: Dr. Dennis A. Gravatt
* Line diagrams used with permission from BIODIDAC, drawn by Livingston, Greely, Canada
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Every kind of plants has its own physical appearance, leaf, root, stem, flower
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Plant Physiology Laboratory
Laboratory Manual
Stephen F. Austin State University
Fall 2010
Professor: Dr. Dennis A. Gravatt
- Line diagrams used with permission from BIODIDAC, drawn by Livingston, Greely, Canada
Introduction to Plant Physiology Lab
Instructor: Dr. Dennis A. Gravatt Office Hours: see lecture policy
Welcome to the plant physiology lab. The experiments which we will do each week are rather involved; please read over each lab beforehand. Past lab experiences have shown that carelessness in the lab lead to failure of the experiment and total frustration!
Purpose: The purpose of this laboratory is to help you understand better the structure and function of plants by conducting experiments and making observations designed to illustrate certain biological phenomena and principles. By providing you with an opportunity to work with your hands it is hoped that you will gain some insight into the principles and methodology of experimental biology. The laboratory work should not be looked at as an end in itself, but rather as a means to an end; as an opportunity to observe and study phenomena described in lectures and textbook, to test the truth of statements made therein, and to demonstrate the variety and complexity of the functional characteristics on plants.
Laboratory Manual: Because the exercises in this course are tailored to the lectures, there is no lab manual, but rather a set of copied material for each lab. Each laboratory exercise will be posted on WEBCT well before the laboratory exercise. Please read the lab instructions carefully before coming to the laboratory period. A quiz will be given before each lab to insure that all students are prepared to carry out the laboratory experiments.
Grading: The lab grade will consist of eight written laboratory reports worth 20 points and 8 lab quizzes worth 5 points each. No make-up laboratory exercises are available. Thus, missing of an exercise will result in the loss of points. In the event that a lab report is not required, less than 8 written lab reports are required to be completed, the final score for the laboratory will be scaled up to the 200 point level.
Notebooks and Lab Reports: The purpose of the lab report is to make you think about the experiment you did and the results you obtained. Make the reports fairly brief (3-4 pages may sometimes suffice) with an introduction (include hypothesis), results (tables or graphs) and discussion. Do not present methods. Reports are usually due the following lab period.
A record should be kept of all observations and measurements for each lab - all in the same notebook. Your lab notebook should contain a complete record of your activities during the semester - all data and observations should be carefully recorded. Trust nothing to memory! Write everything down that is not already included in the provided material. Remember that rough notes that seem entirely adequate at the moment often turn out to be ambiguous after a few days have elapsed.
On occasion, a group will outline the same data, or, in the worst case, your experiment may fail and, with your instructor’s permission, you may use another group’s data. Never make up date! If it is ever obvious this has been done, you will flunk that lab exercise.
BIO 404 Plant Physiology Laboratory Fall 2010 Professor: Dr. Dennis A. Gravatt
LABORATORY SCHEDULE
Lab # Date Topic