Počet záznamů: 1
Plant growth regulators incyde and td-k underperform in cereal field trials
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SYSNO ASEP 0558348 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Plant growth regulators incyde and td-k underperform in cereal field trials Tvůrce(i) van Voorthuizen, M. J. (NZ)
Song, J. (CN)
Novák, Ondřej (UEB-Q) RID, ORCID, SAI
Jameson, P. E. (NZ)Celkový počet autorů 4 Číslo článku 2309 Zdroj.dok. Plants. - : MDPI - ISSN 2223-7747
Roč. 10, č. 11 (2021)Poč.str. 14 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova Barley ; ckx ; cppu ; Cytokinin ; Cytokinin oxidase/dehydrogenase ; incyde ; ipt ; Isopentenyl transferase ; td-k ; Thidiazuron ; Wheat ; Yield Obor OECD Biochemistry and molecular biology CEP EF16_019/0000827 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UEB-Q - RVO:61389030 UT WOS 000807201500001 EID SCOPUS 85117887869 DOI https://doi.org/10.3390/plants10112309 Anotace Using plant growth regulators to alter cytokinin homeostasis with the aim of enhancing endogenous cytokinin levels has been proposed as a strategy to increase yields in wheat and barley. The plant growth regulators INCYDE and CPPU inhibit the cytokinin degrading enzyme cytokinin oxidase/dehydrogenase (CKX), while TD-K inhibits the process of senescence. We report that the application of these plant growth regulators in wheat and barley field trials failed to enhance yields, or change the components of yields. Analyses of the endogenous cytokinin content showed a high concentration of trans-zeatin (tZ) in both wheat and barley grains at four days after anthesis, and statistically significant, but probably biologically insignificant, increases in cisZ-O-glucoside, along with small decreases in cZ riboside (cZR), dihydro Z (DHZ), and DHZR and DHZOG cytokinins, following INCYDE application to barley at anthesis. We discuss possible reasons for the lack of efficacy of the three plant growth regulators under field conditions and comment on future approaches to manipulating yield in the light of the strong homeostatic mechanisms controlling endogenous cytokinin levels. Pracoviště Ústav experimentální botaniky Kontakt David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Rok sběru 2023 Elektronická adresa http://doi.org/10.3390/plants10112309
Počet záznamů: 1