The effect of growth hormones, container design, and grafting techniques on more rapid propagation of pecan cultivars on seedling rootstocks /
| Main Author: | |
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| Other Authors: | , , |
| Format: | Thesis Book |
| Language: | English |
| Published: |
[College Station, Tex.] :
Matta,
1977.
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| Subjects: | |
| Online Access: | Link to ProQuest copy Link to OAKTrust copy |
| Abstract: | The influence of growth hormones, container design, and grafting techniques on more rapid propagation of pecan cultivars on seedling rootstocks was studied. GA₃ at 5000 ppm significantly promoted stem enlargement of seedlings grown in cylinders and pots, and provided for earlier patch budding. However, GA3 induced lateral bud development along the base of the stem which appeared to interfere with patch-budding. Stem diameter enlargement by GA₃ in speedling-grown seedlings was not significant. BA and container design had no influence on stem diameter. "Air-pruning" of the root system, which occurred in speedling-grown seedlings, resulted in seedlings with compact, fibrous, root systems. Stem diameter and stem height were not significantly reduced by "air-pruning" of the root system. IBA and kinetin, along or in combination, did not significantly increase initial bud survival after patch-budding GA₃ enlarged stocks. Graft union structures were described and illustrated. Failure of bud union was attributed to failure of scions to produce callus which could unite with stock-produced callus. Even 1f union had occurred between stock and scion the undifferentiation of scion vascular tissue appeared to be responsible for failure of buds to force. |
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| Item Description: | "Major subject: Horticulture." Vita. |
| Physical Description: | x, 74 leaves : illustrations ; 28 cm |
| Bibliography: | Includes bibliographical references (leaves 56-65). |