MARC details
000 -LEADER |
fixed length control field |
03234nam a22004457a 4500 |
001 - CONTROL NUMBER |
control field |
G65929 |
003 - CONTROL NUMBER IDENTIFIER |
control field |
MX-TxCIM |
005 - DATE AND TIME OF LATEST TRANSACTION |
control field |
20240919021050.0 |
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 |
F01 |
072 #0 - SUBJECT CATEGORY CODE |
Subject category code |
F30 |
072 #0 - SUBJECT CATEGORY CODE |
Subject category code |
H50 |
082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER |
Classification number |
633.153 |
Item number |
EDM |
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) |
100 1# - MAIN ENTRY--PERSONAL NAME |
Personal name |
Crossa, J. |
Miscellaneous information |
Genetic Resources Program |
Field link and sequence number |
CCJL01 |
9 (RLIN) |
59 |
245 00 - TITLE STATEMENT |
Title |
Experimental designs and the analysis of multilocation trials of maize grown under drought stress |
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. |
Data from multilocation trials are important in agriculture because they can be used to: 1) estimate and predict yield differences among genotypes, 2) assess genotype x site interaction and yield stability, and 3) select superior genotypes for planting in future years and at new sites. Data from multilocation trials is imprecise, complex and noisy. To increase the accuracy of genotypic yield estimates and their contrasts, one can therefore: 1) partition the error variance by using incomplete block designs in the form of lattice or row-column designs, 2) partition the genotypic variation by using spatial models of the form of nearest neighbor analysis, and 3) partition the genotype x site interaction variation by using statistical models that will remove noise from the source of variation. Since these strategies are applied to orthogonal sources of variation, they can be used independently. In this study we discus practical concepts related to increasing the precision of the comparison between genotypic means through improved experimental designs (replicated or unreplicated). Data from the CIMMYT Early Drought Experimental Variety Trial (EDEVT), which included eight drought tolerant maize genotypes, two CIMMYT long-term reference checks and two different local checks, were used. The experimental design used in each of the 21 sites was an alpha (0,1) lattice. The efficiency of the lattice design was compared with the conventional randomized complete block design in each site. Changes in the significance of some genotypic mean contrasts when using adjusted vs unadjusted means were assessed. Genotype x site interaction analysis using the AMMI model, and the grouping of sites without genotypic rank changes using the SHMM model, were performed on the adjusted genotype means. |
536 ## - FUNDING INFORMATION NOTE |
Text of note |
Genetic Resources Program |
546 ## - LANGUAGE NOTE |
Language note |
English |
591 ## - CATALOGING NOTES |
Affiliation |
9802|AGRIS 9702|anterior|R97-98PROCE|FINAL9798 |
594 ## - STAFFID |
StaffID |
CCJL01 |
595 ## - COLLECTION |
Collection |
CIMMYT Publications Collection |
650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Breeding methods |
Miscellaneous information |
AGROVOC |
Source of heading or term |
|
9 (RLIN) |
1030 |
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Drought resistance |
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
9 (RLIN) |
1133 |
Topical term or geographic name as entry element |
Genotype environment interaction |
Miscellaneous information |
AGROVOC |
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Selection |
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Simulation models |
9 (RLIN) |
2569 |
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 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
Topical term or geographic name as entry element |
Plant breeding |
Miscellaneous information |
AGROVOC |
Source of heading or term |
|
9 (RLIN) |
1203 |
700 1# - ADDED ENTRY--PERSONAL NAME |
Personal name |
Edmeades, G.O., |
Relator term |
coaut. |
700 1# - ADDED ENTRY--PERSONAL NAME |
Personal name |
Edmeades, G.O.|Banziger, M.|Mickelson, H.R.|Peña-Valdivia, C.B. |
Relator term |
eds. |
700 1# - ADDED ENTRY--PERSONAL NAME |
Personal name |
Franco, J. |
Field link and sequence number |
CFRN01 |
Miscellaneous information |
Formerly Genetic Resources Program |
9 (RLIN) |
494 |
942 ## - ADDED ENTRY ELEMENTS (KOHA) |
Koha item type |
Conference proceedings |