Chapter. Photosynthetic contribution of ear to grain filling in wheat : (Record no. 57056)

000 -LEADER
fixed length control field 03241 aa a22003137a 4500
001 - CONTROL NUMBER
control field a57056
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20190904215727.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 151012b2015 mx a|||| |||| 00| 0 eng d
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 ## - LANGUAGE CODE
Language code of text/sound track or separate title eng
100 1# - MAIN ENTRY--PERSONAL NAME
9 (RLIN) 1910
Personal name Sanchez-Bragado, R.
245 10 - TITLE STATEMENT
Title Chapter. Photosynthetic contribution of ear to grain filling in wheat :
Remainder of title comparison of different methodologies for evaluation
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Mexico :
Name of publisher, distributor, etc. CIMMYT, USAID, MASAGRO, SAGARPA, CONACYT,
Date of publication, distribution, etc. 2015.
500 ## - GENERAL NOTE
General note Open Access
520 ## - SUMMARY, ETC.
Summary, etc. There is an increasing necessity in raising wheat yield potential and stability (Reynolds & Borlaug 2006; Araus et al. 2008; Reynolds et al. 2011) is increasing in view of the growing challenges imposed by social and climate changes. Moreover, genetic advances fuelled by breeding programs have decreased over recent decades (Reynolds et al. 1996; Araus et al. 2008). There is a need to develop more efficient wheat breeding methodologies, particularly phenotyping strategies, which complement existing (traditional) breeding techniques (Araus et al., 2008). One of the approaches proposed to increase yield potential and improve adaptation to abiotic stresses, such as drought and heat, is to select for higher ear photosynthesis. Hence, ear photosynthesis is thought to play an important role in terms of the source of photoassimilates during grain filling, not only under drought, but also under good agronomical conditions (Araus et al. 1993; Bort et al. 1994; Abbad et al. 2004). Although the photosynthetic contribution of the ear to final grain weight has been widely studied (Araus et al. 1993; Bort et al. 1994; Tambussi et al. 2005, 2007; Maydup et al. 2010; Saeidi et al. 2012), its actual importance in terms of contribution to grain filling is not well understood (Tambussi et al. 2007), which has prevented the settling down of high-throughput phenotyping approaches for this trait. The main objective of this work was to compare different experimental approaches aiming to assess the relative photosynthetic contribution of the ear and the rest of the plant (the culm) to grain filling. Three different techniques were used: inhibition of ear and culm photosynthesis through i) herbicide DCMU application; or ii) by shading each organ; and iii) a non-disturbing approach which compares the carbon isotope composition (δ13C) in its natural abundance of assimilates from different plant parts (awns and peduncle) with the δ13C of the mature grains. Several advanced CIMMYT lines were tested under good agronomic conditions.
536 ## - FUNDING INFORMATION NOTE
Text of note Global Wheat Program
546 ## - LANGUAGE NOTE
Language note Text in english
594 ## - STAFFID
StaffID INT3193
594 ## - STAFFID
StaffID INT1511
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1911
Topical term or geographic name as entry element Seed filling
Miscellaneous information AGROVOC
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1310
Topical term or geographic name as entry element Wheat
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 1436
Personal name Araus, J.L.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 831
Personal name Reynolds, M.P.
Miscellaneous information Global Wheat Program
Field link and sequence number INT1511
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 899
Personal name Molero, G.
Miscellaneous information Global Wheat Program
Field link and sequence number INT3193
773 0# - HOST ITEM ENTRY
Record control number u56891
Place, publisher, and date of publication Mexico : CIMMYT, USAID, MASAGRO, SAGARPA, CONACYT, 2015.
Title Proceedings of the International TRIGO (Wheat) Yield Potential :
Related parts p. 54-55
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme
Koha item type Book
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Collection code Permanent Location Current Location Date acquired Date last seen Price effective from Koha item type
  Not Lost       CIMMYT Staff Publications Collection CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 2015-10-14 2015-10-14 2015-10-14 Book
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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.
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