The crown system of barley: I. Temperature, seeding depth and genotypic effects II. Classification and description

Persistent Link:
http://hdl.handle.net/10150/291560
Title:
The crown system of barley: I. Temperature, seeding depth and genotypic effects II. Classification and description
Author:
Luna Ruiz, Jose de Jesus, 1959-
Issue Date:
1992
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:
Little is known about the crown system and its association with plant growth and development in spring cereals. This study investigated temperature, seeding depth and genotypic effects on crown development of barley; relationships between crown and seminal root systems; and classification and description of crown systems under deep seeding. Two greenhouse experiments were performed using PVC tubes. Low temperature and deep seeding reduced percentage and rate of emergence but increased crown number, crown depth, and crown weight in most genotypes. Crown number, crown depth and crown weight showed increased associations with seminal root, whole root, and shoot weight at low temperature and deep seeding in most genotypes. Deep plantings showed that crown systems of barley can be classified as unicrown, bicrown and multicrown types with some variants. One line produced plants with no subcrown internode under 12.5 cm planting. Our results suggested that the crown is a potential source of crown roots and tillers.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Agriculture, Agronomy.; Biology, Genetics.; Biology, Plant Physiology.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Plant Sciences
Degree Grantor:
University of Arizona
Advisor:
Ramage, Robert T.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleThe crown system of barley: I. Temperature, seeding depth and genotypic effects II. Classification and descriptionen_US
dc.creatorLuna Ruiz, Jose de Jesus, 1959-en_US
dc.contributor.authorLuna Ruiz, Jose de Jesus, 1959-en_US
dc.date.issued1992en_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.abstractLittle is known about the crown system and its association with plant growth and development in spring cereals. This study investigated temperature, seeding depth and genotypic effects on crown development of barley; relationships between crown and seminal root systems; and classification and description of crown systems under deep seeding. Two greenhouse experiments were performed using PVC tubes. Low temperature and deep seeding reduced percentage and rate of emergence but increased crown number, crown depth, and crown weight in most genotypes. Crown number, crown depth and crown weight showed increased associations with seminal root, whole root, and shoot weight at low temperature and deep seeding in most genotypes. Deep plantings showed that crown systems of barley can be classified as unicrown, bicrown and multicrown types with some variants. One line produced plants with no subcrown internode under 12.5 cm planting. Our results suggested that the crown is a potential source of crown roots and tillers.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectAgriculture, Agronomy.en_US
dc.subjectBiology, Genetics.en_US
dc.subjectBiology, Plant Physiology.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplinePlant Sciencesen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorRamage, Robert T.en_US
dc.identifier.proquest1350944en_US
dc.identifier.bibrecord.b26422487en_US
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