Relationships between parthenocarpy and skin texture in cucumber, (Cucumis sativus L.) /
| Main Author: | |
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| Other Authors: | , , |
| Format: | Thesis Book |
| Language: | English |
| Published: |
1990.
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| Subjects: | |
| Online Access: | ProQuest, Abstract Link to OAKTrust copy |
| Abstract: | Two inbreds, TAMU 3031 and Gy14A, were used in studies for the inheritance of skin texture and parthenocarpy. TAMU 3031, developed for parthenocarpic fruiting capabilities, produced smooth, black spined, glossy, orange colored mature fruit. Gy14A, while nonparthenocarpic, produced warty, white spined, dull, cream colored mature fruit. In these studies increases in parthenocarpy could be achieved by selecting for earlier first fruit, earlier set of the first 3 or 4 fruit and greater overall yield, when pollination was blocked. Earliness was measured by nodal distance from hypocotyl to fruit. Realized heritabilities for parthenocarpy ranged from 10-39%. There was also evidence that parthenoarpy was maternally influenced. As previously reported, warts were inherited by a single completely dominant gene pleiotropic or linked with dull and mottled skin and independent of two linked or pleiotropic traits, black spine and orange mature fruit color. Positive correlations between smooth skin and parthenocarpy (measured by earliness of the first fruit and average earliness of the first 3 or 4 fruit) suggested that an association existed between the two traits. Further evidence of an association was shown by progress of F3 populations toward parthenocarpy through selection of smooth skin in the F2. Spine color and mature fruit color were independent of parthenocarpy. |
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| Item Description: | Typescript (photocopy). Vita. "Major subject: Horticulture." |
| Physical Description: | xi, 116 leaves : illustrations ; 29 cm |
| Bibliography: | Includes bibliographical references. |