. Auxins and plant growth. Auxin; Plant growth promoting substances. Extraction and Measurement Techniques 35 blades damped to a block are perfectly satisfactory. For Avena straight growth tests, guillotines such as those described by van der Weij (1932), Yamaki (1948) or by Galston and Hand (1949) are very help- ful. 4. When guillotines are used, it is convenient to mount the coleoptile cylinders on the teeth of fine hair combs (Schneider, 1938). See figure Fig. 17. An Anena straiglit-giowth test carried out on conil) teeth by the method of Schneider (1938). 5. A fine ruler or a dissecti
. Auxins and plant growth. Auxin; Plant growth promoting substances. Extraction and Measurement Techniques 35 blades damped to a block are perfectly satisfactory. For Avena straight growth tests, guillotines such as those described by van der Weij (1932), Yamaki (1948) or by Galston and Hand (1949) are very help- ful. 4. When guillotines are used, it is convenient to mount the coleoptile cylinders on the teeth of fine hair combs (Schneider, 1938). See figure Fig. 17. An Anena straiglit-giowth test carried out on conil) teeth by the method of Schneider (1938). 5. A fine ruler or a dissecting microscope with an ocular eyepiece for measuring length of the sections. PROCEDURE FOR THE AVENA STRAIGHT-GROWTH TEST Planting Place husked seeds of Victory oats in water in a suction flask and evacuate. Soak for two hours, then discard the soak water. On glass plates covered with. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Leopold, A. Carl (Aldo Carl), 1919-. Berkeley, University of California Press
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