NUTRITION AND GROWTH OF JOJOBA, SIMMONDSIA CHINENSIS (LINK) SCHNEIDER, DURING VEGETATIVE PROPAGATION.

Persistent Link:
http://hdl.handle.net/10150/185082
Title:
NUTRITION AND GROWTH OF JOJOBA, SIMMONDSIA CHINENSIS (LINK) SCHNEIDER, DURING VEGETATIVE PROPAGATION.
Author:
FELDMAN, WILLIAM RAOUL.
Issue Date:
1982
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Jojoba cuttings were fertilized during rooting under mist. Rooted cuttings were evaluated for growth and element concentrations. Also investigated were: CO₂ exchange during rooting; media, light and nutrition effects on nursery growth; and nutrition effects on field establishment. Fertilizer formulations used were: Peter's soluble, Osmocote, IBDU, and SCU. Rooting was depressed at 5.46 kg m⁻³ IBDU. High rates of either Osmocote or Peter's increased root weights over controls in spring. Osmocote-treated cuttings were greater than controls in nodes, fresh weight and succulence. Initial leaf concentrations of N, P and K were lower in spring than in summer and greater at lining-out for fertilized cuttings. Leaf N and K were positively related to root and shoot growth in spring and to shoot growth in summer. Leaf Zn was positively related to shoot and root growth in spring. Treatment differences in leaf element concentrations vanished after 3 months in the nursery. Differences in growth persisted for up to six months. Fertilization during rooting did not effect CO₂ exchange processes. Apparent photosynthesis (AP) declined until rooting and then rose with root growth as did root respiration. Dark respiration (Rd) dropped to a stable rate and did not increase as fast as AP upon rooting. During rooting AP, Rd and leaf succulence were well correlated. New nodes for liners grown in media with air porosities of 18.5 and 27.6 percent were equivalent. Nodes, fresh and dry weight, leaf area and specific leaf weight were greater for sun-grown than for 50 percent shade-grown liners. Shade-grown liners were more succulent. Plants grown in Osmocote amended media produced more nodes, leaves and flowers than did controls. Plants unfertilized during rooting grew fastest when grown with Osmocote in the nursery media, but were smaller at 3 months than plants fertilized during roots. Field survival after five months was not significantly affected by nutritional treatments. Growth after transplanting was significantly greater for plants fertilized in the nursery. Rooting stage fertilization is beneficial if plants are not held too long in the nursery. Nursery stage nutrition is very important for good stand establishment and growth of jojoba transplants.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Jojoba -- Cuttings.; Jojoba -- Fertilizers.; Plant cuttings -- Growth.
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Plant Sciences; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Dobrenz, A. K.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleNUTRITION AND GROWTH OF JOJOBA, SIMMONDSIA CHINENSIS (LINK) SCHNEIDER, DURING VEGETATIVE PROPAGATION.en_US
dc.creatorFELDMAN, WILLIAM RAOUL.en_US
dc.contributor.authorFELDMAN, WILLIAM RAOUL.en_US
dc.date.issued1982en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractJojoba cuttings were fertilized during rooting under mist. Rooted cuttings were evaluated for growth and element concentrations. Also investigated were: CO₂ exchange during rooting; media, light and nutrition effects on nursery growth; and nutrition effects on field establishment. Fertilizer formulations used were: Peter's soluble, Osmocote, IBDU, and SCU. Rooting was depressed at 5.46 kg m⁻³ IBDU. High rates of either Osmocote or Peter's increased root weights over controls in spring. Osmocote-treated cuttings were greater than controls in nodes, fresh weight and succulence. Initial leaf concentrations of N, P and K were lower in spring than in summer and greater at lining-out for fertilized cuttings. Leaf N and K were positively related to root and shoot growth in spring and to shoot growth in summer. Leaf Zn was positively related to shoot and root growth in spring. Treatment differences in leaf element concentrations vanished after 3 months in the nursery. Differences in growth persisted for up to six months. Fertilization during rooting did not effect CO₂ exchange processes. Apparent photosynthesis (AP) declined until rooting and then rose with root growth as did root respiration. Dark respiration (Rd) dropped to a stable rate and did not increase as fast as AP upon rooting. During rooting AP, Rd and leaf succulence were well correlated. New nodes for liners grown in media with air porosities of 18.5 and 27.6 percent were equivalent. Nodes, fresh and dry weight, leaf area and specific leaf weight were greater for sun-grown than for 50 percent shade-grown liners. Shade-grown liners were more succulent. Plants grown in Osmocote amended media produced more nodes, leaves and flowers than did controls. Plants unfertilized during rooting grew fastest when grown with Osmocote in the nursery media, but were smaller at 3 months than plants fertilized during roots. Field survival after five months was not significantly affected by nutritional treatments. Growth after transplanting was significantly greater for plants fertilized in the nursery. Rooting stage fertilization is beneficial if plants are not held too long in the nursery. Nursery stage nutrition is very important for good stand establishment and growth of jojoba transplants.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectJojoba -- Cuttings.en_US
dc.subjectJojoba -- Fertilizers.en_US
dc.subjectPlant cuttings -- Growth.en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplinePlant Sciencesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorDobrenz, A. K.en_US
dc.contributor.committeememberPalzkill, D. A.en_US
dc.contributor.committeememberSacamano, C.en_US
dc.contributor.committeememberHutchinson, C.en_US
dc.contributor.committeememberHendricks, D.en_US
dc.identifier.proquest8305978en_US
dc.identifier.oclc686762863en_US
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