Osmotic adjustment in maize: (Record no. 3709)

000 -LEADER
fixed length control field 03023nam a22004097a 4500
001 - CONTROL NUMBER
control field 65809
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20170719154645.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 121211s ||||f| 0 p|p||0|| |
020 ## - INTERNATIONAL STANDARD BOOK NUMBER
International Standard Book Number 968-6923-93-4
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
072 #0 - SUBJECT CATEGORY CODE
Subject category code F30
072 #0 - SUBJECT CATEGORY CODE
Subject category code F60
082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 633.153
Item number EDM
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Chimenti, C.A.
Affiliation Developing Drought- and Low N-Tolerant Maize. Proceedings of a Symposium; El Batan, Mex. (Mexico); 25- 29 Mar 1996
110 2# - MAIN ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
245 00 - TITLE STATEMENT
Title Osmotic adjustment in maize:
Remainder of title Genetic variation and association with water uptake
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Mexico, DF (Mexico)
Name of publisher, distributor, etc. CIMMYT :
Date of publication, distribution, etc. 1997
340 ## - PHYSICAL MEDIUM
Material base and configuration Printed
520 ## - SUMMARY, ETC.
Summary, etc. This paper reports on a study of osmotic adjustment in maize, an attribute linked to tolerance to water stress in some species. The hypotheses tested were: A) genotypes differ in their capacity for osmotic adjustment; and B) osmotic adjustment measured in the pre-flowering stage is associated with performance of plants exposed to water stress in the field. Twenty inbred lines were exposed to water stress under semi-controlled conditions during the 4 wk before flowering; stress was initiated at the sixth visible-leaf stage and was followed by a period of gradual drying out of the soil. Changes in water status of the plants were defined in terms of leaf relative water content (RWC) and osmotic potential (Y0). Degree of osmotic adjustment (OA) was expressed as the estimated value of RWC for a defined value of Y0 (taken here as -2 MPa), referred to as RWCe. Thus, a high RWCe indicates a high degree of OA. All genotypes showed some degree of OA. The range of RWCe obtained varied with genotype from 87% to 58%, and significant differences (P<0.05) in RWCe existed among genotypes. In a second experiment in the field, a subset of the inbred line collection was exposed to water stress 20 d before flowering. Water deficits reduced soil water extraction, dry matter, and yield. Variations in relative changes in these variables across genotypes were associated with variations in the degree of OA exhibited by the genotypes. We conclude that there is a substantial degree of intraspecific variation for OA in maize and that OA may explain some differences in yield observed in the field during water stress. These results suggest that OA estimates could be used to identify drought tolerant genotypes.
546 ## - LANGUAGE NOTE
Language note English
591 ## - CATALOGING NOTES
Affiliation 9801|AGRIS 9702
595 ## - COLLECTION
Collection CIMMYT Publications Collection
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Drought resistance
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Genetic variation
9 (RLIN) 1129
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Osmotic pressure
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Resistance to injurious factors
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Water uptake
653 0# - INDEX TERM--UNCONTROLLED
Uncontrolled term CIMMYT
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1314
Topical term or geographic name as entry element Zea mays
Miscellaneous information AGROVOC
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1134
Topical term or geographic name as entry element Genotypes
Miscellaneous information AGROVOC
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Cantagallo, J.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Edmeades, G.O.|Banziger, M.|Mickelson, H.R.|Pena-Valdivia, C.B.
Relator term eds.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Guevara, E.,
Relator term coaut.
9 (RLIN) 1592
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Conference proceedings
Holdings
Withdrawn status Lost status Damaged status Not for loan Collection code Permanent Location Current Location Date acquired Full call number Barcode Date last seen Copy number Price effective from Koha item type
  Not Lost     CIMMYT Publications Collection CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 2015-02-10 633.153 EDM 1N624179 2015-02-10 1 2015-02-10 Conference proceedings
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Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org