Responses of wheat plants under post-anthesis stress induced by defoliation: i. Contribution of agro-physiological traits to grain yield
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2016
Authors
Dodig, Dejan
Kandić, Vesna

Savić, Jasna
Vucelic-Radović, Bijana

Zorić, Miroslav

Popović, Aleksandra
Quarrie, Steve

Article (Published version)

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When water stress develops post-anthesis, wheat (Triticum aestivum L.) plants have to rely increasingly on remobilization of previously stored assimilates to maintain grain filling. In two-year field trials, we studied more than 20 agronomic and developmental traits in 61 wheat genotypes (27 F4:5 families, 17 parents used for the crosses and 17 standards), comparing plants that were defoliated (DP) by cutting off all leaf blades 10 days after anthesis with intact control plants (CP). Estimated contributions of stem and sheath assimilate reserves to grain weight/spike were from 10-54% and from 24-84% in CP and DP plants, respectively. Stem-related traits were among key traits determining stem reserve contribution (SRC). The most important genetic variables in differentiating genotypes for stress tolerance were biomass/stem, stem reserves mobilization efficiency and grain filling rate (GFR). Balance among traits related to yield maintenance in DP were more important than their high value...s. In general F4: 5 families (FAM), that had been crossed to combine typical breeding traits such as biomass and yield components, showed better tolerance under moderate stress than standards and parents.
Source:
Experimental Agriculture, 2016, 52, 2, 203-223Publisher:
- Cambridge Univ Press, New York
Funding / projects:
- Biotechnological approaches for overcoming effects of drought on agricultural production in Serbia (RS-31005)
DOI: 10.1017/S0014479715000034
ISSN: 0014-4797
WoS: 000378152200004
Scopus: 2-s2.0-84923278136
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MRIZPTY - JOUR AU - Dodig, Dejan AU - Kandić, Vesna AU - Savić, Jasna AU - Vucelic-Radović, Bijana AU - Zorić, Miroslav AU - Popović, Aleksandra AU - Quarrie, Steve PY - 2016 UR - http://rik.mrizp.rs/handle/123456789/648 AB - When water stress develops post-anthesis, wheat (Triticum aestivum L.) plants have to rely increasingly on remobilization of previously stored assimilates to maintain grain filling. In two-year field trials, we studied more than 20 agronomic and developmental traits in 61 wheat genotypes (27 F4:5 families, 17 parents used for the crosses and 17 standards), comparing plants that were defoliated (DP) by cutting off all leaf blades 10 days after anthesis with intact control plants (CP). Estimated contributions of stem and sheath assimilate reserves to grain weight/spike were from 10-54% and from 24-84% in CP and DP plants, respectively. Stem-related traits were among key traits determining stem reserve contribution (SRC). The most important genetic variables in differentiating genotypes for stress tolerance were biomass/stem, stem reserves mobilization efficiency and grain filling rate (GFR). Balance among traits related to yield maintenance in DP were more important than their high values. In general F4: 5 families (FAM), that had been crossed to combine typical breeding traits such as biomass and yield components, showed better tolerance under moderate stress than standards and parents. PB - Cambridge Univ Press, New York T2 - Experimental Agriculture T1 - Responses of wheat plants under post-anthesis stress induced by defoliation: i. Contribution of agro-physiological traits to grain yield VL - 52 IS - 2 SP - 203 EP - 223 DO - 10.1017/S0014479715000034 UR - conv_932 ER -
@article{ author = "Dodig, Dejan and Kandić, Vesna and Savić, Jasna and Vucelic-Radović, Bijana and Zorić, Miroslav and Popović, Aleksandra and Quarrie, Steve", year = "2016", abstract = "When water stress develops post-anthesis, wheat (Triticum aestivum L.) plants have to rely increasingly on remobilization of previously stored assimilates to maintain grain filling. In two-year field trials, we studied more than 20 agronomic and developmental traits in 61 wheat genotypes (27 F4:5 families, 17 parents used for the crosses and 17 standards), comparing plants that were defoliated (DP) by cutting off all leaf blades 10 days after anthesis with intact control plants (CP). Estimated contributions of stem and sheath assimilate reserves to grain weight/spike were from 10-54% and from 24-84% in CP and DP plants, respectively. Stem-related traits were among key traits determining stem reserve contribution (SRC). The most important genetic variables in differentiating genotypes for stress tolerance were biomass/stem, stem reserves mobilization efficiency and grain filling rate (GFR). Balance among traits related to yield maintenance in DP were more important than their high values. In general F4: 5 families (FAM), that had been crossed to combine typical breeding traits such as biomass and yield components, showed better tolerance under moderate stress than standards and parents.", publisher = "Cambridge Univ Press, New York", journal = "Experimental Agriculture", title = "Responses of wheat plants under post-anthesis stress induced by defoliation: i. Contribution of agro-physiological traits to grain yield", volume = "52", number = "2", pages = "203-223", doi = "10.1017/S0014479715000034", url = "conv_932" }
Dodig, D., Kandić, V., Savić, J., Vucelic-Radović, B., Zorić, M., Popović, A.,& Quarrie, S.. (2016). Responses of wheat plants under post-anthesis stress induced by defoliation: i. Contribution of agro-physiological traits to grain yield. in Experimental Agriculture Cambridge Univ Press, New York., 52(2), 203-223. https://doi.org/10.1017/S0014479715000034 conv_932
Dodig D, Kandić V, Savić J, Vucelic-Radović B, Zorić M, Popović A, Quarrie S. Responses of wheat plants under post-anthesis stress induced by defoliation: i. Contribution of agro-physiological traits to grain yield. in Experimental Agriculture. 2016;52(2):203-223. doi:10.1017/S0014479715000034 conv_932 .
Dodig, Dejan, Kandić, Vesna, Savić, Jasna, Vucelic-Radović, Bijana, Zorić, Miroslav, Popović, Aleksandra, Quarrie, Steve, "Responses of wheat plants under post-anthesis stress induced by defoliation: i. Contribution of agro-physiological traits to grain yield" in Experimental Agriculture, 52, no. 2 (2016):203-223, https://doi.org/10.1017/S0014479715000034 ., conv_932 .