Maize population improvement for low soil N : (Record no. 3383)

000 -LEADER
fixed length control field 01108nam a22003497a 4500
001 - CONTROL NUMBER
control field 62111
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20190401213002.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 121211s1997||||mx | ||0|| | en eneng d
020 ## - INTERNATIONAL STANDARD BOOK NUMBER
International Standard Book Number 968-6923-93-4
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 ## - LANGUAGE CODE
Language code of text/sound track or separate title eng
082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 633.153
Item number CIM
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Lafitte, R.
9 (RLIN) 3878
245 00 - TITLE STATEMENT
Title Maize population improvement for low soil N :
Remainder of title sleection gains and the identification of secondary traits
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Mexico :
Name of publisher, distributor, etc. CIMMYT,
Date of publication, distribution, etc. 1997.
340 ## - PHYSICAL MEDIUM
Material base and configuration Printed
500 ## - GENERAL NOTE
General note Abstract only
500 ## - GENERAL NOTE
General note Developing Drought and Low-Nitrogen Tolerant Maize: Book of Abstracts; Symposium; El Batan, Mex. (Mexico); 24-29 Mar 1996
520 ## - SUMMARY, ETC.
Summary, etc. Tropical maize is frequently grown under sub-optimal levels of soil N. Cultivars with improved tolerance to low N can be developed by simultaneously selecting for greater grain yield under stress and for secondary traits expected to confer an advantage under stress. Several traits were combined for ideotype selection in the tropical maize population Across 8328 BN. Gains over five cycles of full-sib recurrent selection averaged 84 kg grain/ha/year (4.5% per year) at low N and 120 kg grain/ha/year (2.3% per year) at high N. Selection under low N using this ideotype was associated with increased vegetative biomass, increased movement of N from vegetative parts to the grain, delayed senescence, decreased floret number, and an increase in the length of the lag phase of grain growth. Another approach to improving yield under low N is the use of controlled drought as a surrogate stress. Four tropical maize populations were selected for tolerance to drought at flowering and during grain filling. Gains over two to eight selection cycles averaged 100 kg grain/ha/year (3.4% per year) at low N and 75 kg grain/ha/year (1.2% per year) at high N. Two possible mechanistic explanations for improved performance under low N of populations selected for drought tolerance are reduced ear abortion and delayed leaf senescence.
536 ## - FUNDING INFORMATION NOTE
Text of note Research and Partnership Program
546 ## - LANGUAGE NOTE
Language note Text in English
591 ## - CATALOGING NOTES
Affiliation R96ABS|AR96-97E
594 ## - STAFFID
StaffID INT1888
595 ## - COLLECTION
Collection CIMMYT Publications Collection
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Drought resistance
9 (RLIN) 3104
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1081
Topical term or geographic name as entry element Drought stress
Miscellaneous information AGROVOC
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Nitrogen fixation
9 (RLIN) 6247
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1173
Topical term or geographic name as entry element Maize
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 834
Personal name Banziger, M.
Miscellaneous information Research & Partnership Program
Field link and sequence number INT1888
773 0# - HOST ITEM ENTRY
Related parts p. 485-489
Title Developing drought- and los N- tolerant maize : proceedings of a symposium
International Standard Book Number 968-6923-93-4
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier http://46.20.115.203/Download/cis/62111.pdf
Public note Access only for CIMMYT Staff
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Conference paper
Source of classification or shelving scheme
Holdings
Withdrawn status Lost status Source of classification or shelving scheme 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 Staff Publications Collection CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 2015-02-10 633.153 CIM L623586 2015-02-10 1 2015-02-10 Conference paper
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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.
Lunes –Viernes 9:00 am. 17:00 pm. Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org