Searching for new possibilities of bloom delay in apricots

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25271121%3A_____%2F22%3AN0000064" target="_blank" >RIV/25271121:_____/22:N0000064 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.17660/ActaHortic.2022.1344.27" target="_blank" >http://dx.doi.org/10.17660/ActaHortic.2022.1344.27</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17660/ActaHortic.2022.1344.27" target="_blank" >10.17660/ActaHortic.2022.1344.27</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Searching for new possibilities of bloom delay in apricots

Popis výsledku v původním jazyce

Late frosts threaten the yield in many apricot growing regions. Bloom delay is one of the possible passive protection methods. Ethephon (2-chloroethylphosphonic acid) is the best known efficient chemical bloom delayer. However, its use can have some negative side effects. Thus, an efficient and safe substitute has yet to be found. The objective of our experiments was to simply test the delaying efficiency of some active ingredients and methods in apricot (Prunus armeniaca L.) orchard and compare them with ethephon as a standard. 1-Aminocyclopropane 1-carboxylic acid (ACC), abscisic acid (ABA), soybean oil, and white latex painting were used individually or in combinations in two seasons and the results compared with autumn application of ethephon. When used alone, the ethephon at 100 ppm was the most effective compound in both seasons. The bloom delay was even increased by combining its application with winter white paint or with white paint and early spring soybean oil sprays. Autumn application of ACC alone at 100, 1000, and 2000 ppm concentrations did not lead to any delay unless combined with white paint or with white paint and soybean oil. ABA at 1000 ppm concentration also did not cause any delay. Double application of 8% soybean oil at early spring alone had similar effect as ethephon at 100 ppm. White latex paint alone had minor effect. The tested methods did not show significant delays when used alone but their combinations appears promising.

Název v anglickém jazyce

Searching for new possibilities of bloom delay in apricots

Popis výsledku anglicky

Late frosts threaten the yield in many apricot growing regions. Bloom delay is one of the possible passive protection methods. Ethephon (2-chloroethylphosphonic acid) is the best known efficient chemical bloom delayer. However, its use can have some negative side effects. Thus, an efficient and safe substitute has yet to be found. The objective of our experiments was to simply test the delaying efficiency of some active ingredients and methods in apricot (Prunus armeniaca L.) orchard and compare them with ethephon as a standard. 1-Aminocyclopropane 1-carboxylic acid (ACC), abscisic acid (ABA), soybean oil, and white latex painting were used individually or in combinations in two seasons and the results compared with autumn application of ethephon. When used alone, the ethephon at 100 ppm was the most effective compound in both seasons. The bloom delay was even increased by combining its application with winter white paint or with white paint and early spring soybean oil sprays. Autumn application of ACC alone at 100, 1000, and 2000 ppm concentrations did not lead to any delay unless combined with white paint or with white paint and soybean oil. ABA at 1000 ppm concentration also did not cause any delay. Double application of 8% soybean oil at early spring alone had similar effect as ethephon at 100 ppm. White latex paint alone had minor effect. The tested methods did not show significant delays when used alone but their combinations appears promising.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Projekt

<a href="/cs/project/QK1920124" target="_blank" >QK1920124: Identifikace příčin předčasného odumírání a jeho omezení při pěstování meruněk v ČR.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the XIV International Symposium on Plant Bioregulators in Fruit Production

ISBN

9789462613430

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

183-188

Název nakladatele

ISHS

Místo vydání

Leuven, Belgium

Místo konání akce

Riva del Garda, Trento, Italy

Datum konání akce

1. 1. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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