Triazole priming of maize seed to enhance drought tolerance during field establishment (Record no. 3706)

000 -LEADER
fixed length control field 03622nam a22004217a 4500
001 - CONTROL NUMBER
control field 65806
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20190822221659.0
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 Souza Machado, V.
Affiliation Developing Drought- and Low N-Tolerant Maize. Proceedings of a Symposium; El Batan, Tex. (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 Triazole priming of maize seed to enhance drought tolerance during field establishment
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. Lowland tropical maize environments are often characterized by unreliable rainfall distribution at planting time. Triazoles are plant growth regulators which moderate the effects of drought and high temperatures. We evaluated the triazole 'Paclobutrazol' as a seed primer on two maize cultivars in 1994 and on five maize cultivars in 1995 infield trials conducted at Tlaltizapan, Morelos and at Cocula, Guerrero, and in greenhouse studies at the University of Guelph. In 1994, seeds of hybrids 'P 3288' and 'NK TB 8101 ' were primed with Paclobutrazol 50 alone and in combination with Ancymidol 25 and grown under severe and moderate drought stress in the dry winter season. Compared with the non-primed check at Tlaltizapan, the triazole treatments delayed seedling emergence by 2.4-3.2 days, reduced plant height by 4%, delayed anthesis by 1.4-2.0 days and reduced grain yield by 11-17% across both drought treatments. At Cocula results were similar, though yield differences were non-significant due to a high coefficient of variation. In 1995, five cultivars ('CML8 x CML9', 'CML19 x CML27', 'La Posta Sequia C3', 'SIWA' and 'SIBA') (the last there from ClMMYT's drought breeding program), were seed treated with Paclobutrazol 80 imbibed, Paclobutrazol 20 seed coated, and in combination. The two field trials at Tlaltizapan involved a seedling survival trial with a gradation in levels of irrigation during the establishment phase and a mid-season drought stress trial. The seed coated treatment showed no significant response in either trial; the imbibing treatment reduced surviving seedling counts by 15-21% under severe water stress, slowed the rate of emergence, and resulted in non-significant reductions in biomass and grain yield. In greenhouse experiments at Guelph on the same genotypes and seed treatments, the Paclobutrazol imbibing treatment delayed emergence and reduced seedling height and fresh weight by 30% and 25% respectively, and gave inconclusive results under heat and drought stress. No differences were noted between the seed coated treatment and the check. We conclude that Paclobutrazol cannot be recommended at this stage as an imbibed seed treatment for tropical field maize.
546 ## - LANGUAGE NOTE
Language note English
591 ## - CATALOGING NOTES
Affiliation 9801|AGRIS 9702|anterior|R97-98PROCE|FINAL9798
595 ## - COLLECTION
Collection CIMMYT Publications Collection
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Breeding methods
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) 1081
Topical term or geographic name as entry element Drought stress
Miscellaneous information AGROVOC
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Lowland
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Tropical zones
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) 1203
Topical term or geographic name as entry element Plant breeding
Miscellaneous information AGROVOC
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Aguilar-Mariscal, I.,
Relator term coaut.
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
9 (RLIN) 800
Personal name Ali, A.
Miscellaneous information Socioeconomics Program
Field link and sequence number I1706046
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 1K624179 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