Knowledge Center Catalog

Heat stress differentially regulates wheat genotypes in respect of the contribution of culm reserves to grain yield (Record no. 63438)

MARC details
000 -LEADER
fixed length control field 03490nab a22003617a 4500
001 - CONTROL NUMBER
control field 63438
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20211007202436.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 201218s2020 bg |||p|op||| 00| 0 eng d
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 1810-3030
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 2408-8684 (Online)
024 8# - OTHER STANDARD IDENTIFIER
Standard number or code https://doi.org/10.5455/JBAU.127741
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
Personal name Karim, M.R.
9 (RLIN) 18909
245 10 - TITLE STATEMENT
Title Heat stress differentially regulates wheat genotypes in respect of the contribution of culm reserves to grain yield
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Bangladesh :
Name of publisher, distributor, etc. Bangladesh Agricultural University Research System,
Date of publication, distribution, etc. 2020.
500 ## - GENERAL NOTE
General note Peer review
500 ## - GENERAL NOTE
General note Open Access
520 ## - SUMMARY, ETC.
Summary, etc. Grain filling determines the grain weight, a major component of grain yield in cereals. Grain filling in wheat depends on current assimilation and culm reserves. A field experiment was conducted at the Field Lab, Department of Crop Botany, Bangladesh Agricultural University, Mymensingh during October 2013–May 2014 to study the grain filling patterns and the contributions of culm reserves to grain yield under heat stress. The experiment consisted of two factors—wheat cultivars (10 cultivars) and heat treatments (control and heat stress). Heat stress was imposed by late sowing (Dec 20); the seeds were sown in normal time (Nov 15) for control. The tillers were sampled once a week during grain filling period to determine the changes in dry weights of different parts, viz., leaves, culm with sheath, spikes, and grains; and to examine the contribution of culm reserves to grain yield. The result in this experiment revealed that the grain yield was reduced by 3–49% due to the stress. The reduction in grain yield was attributable mainly to lighter grain weight due to the stress. Heat stress drastically reduced the grain filling duration by 25–40%. However, the stress increased the grain filling rate by 6–60%. The stress induced early leaf senescence indicated as the decline in SPAD readings. The result indicates less contribution of current assimilation to grain yield under the stress. However, the duration of stay green of leaves varied with the cultivars. The amount of reserves remobilized to grain varied among the cultivars ranging from 0.52 to 1.2 g spike−1 in control and from 0.44 to 0.97 g spike−1 in stressed plants. The stressed wheat plants exhibited lower accumulation of reserves in culm but they showed almost its complete remobilization to the grain. The contribution of culm reserves to grain yield varied from 33 to 67%, and 36 to 61% in control and in stressed plants, respectively. In conclusion, culm reserves is the important attributes in grain yield in Bangladeshi wheat cultivars but the contribution remains almost unaffected due the post-anthesis heat stress.
546 ## - LANGUAGE NOTE
Language note Text in English
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 4896
Topical term or geographic name as entry element Stems
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 1911
Topical term or geographic name as entry element Seed filling
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 1971
Topical term or geographic name as entry element Heat stress
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Wheat
Miscellaneous information AGROVOC
Source of heading or term
9 (RLIN) 1310
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Islam, M.A.
Field link and sequence number N1706508
Miscellaneous information Formerly Sustainable Intensification Program
9 (RLIN) 18883
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 18901
Personal name Hossain, M.A.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 18916
Personal name Hasan, A.K.
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 18917
Personal name Haque, M.S.
773 0# - HOST ITEM ENTRY
Title Journal of the Bangladesh Agricultural University
Related parts v. 18, no. 4, p. 894-900
Place, publisher, and date of publication Bangladesh : Bangladesh Agricultural University Research System, 2020.
International Standard Serial Number 1810-3030
Record control number Gu94978
856 4# - ELECTRONIC LOCATION AND ACCESS
Link text Open Access through DSpace
Uniform Resource Identifier https://hdl.handle.net/10883/21309
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Article
Suppress in OPAC No
Source of classification or shelving scheme Dewey Decimal Classification
Holdings
Date last seen Total Checkouts Price effective from Koha item type Lost status Source of classification or shelving scheme Damaged status Not for loan Collection code Withdrawn status Home library Current library Date acquired
03/03/2021   03/03/2021 Article Not Lost Dewey Decimal Classification     CIMMYT Staff Publications Collection   CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 03/03/2021

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