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Addressing the Threat of Frost Damag...

Sterle, David.

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Addressing the Threat of Frost Damage on Peach Floral Buds Through Large-Scale Cold Hardiness Phenotyping, Dynamic Weather Modeling and Non-Targeted Metabolomic and Proteomic Analysis.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Addressing the Threat of Frost Damage on Peach Floral Buds Through Large-Scale Cold Hardiness Phenotyping, Dynamic Weather Modeling and Non-Targeted Metabolomic and Proteomic Analysis./
作者:	Sterle, David.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2023,
面頁冊數:	141 p.
附註:	Source: Dissertations Abstracts International, Volume: 85-02, Section: A.
Contained By:	Dissertations Abstracts International85-02A.
標題:	Horticulture. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30569445
ISBN:	9798380125642

Addressing the Threat of Frost Damage on Peach Floral Buds Through Large-Scale Cold Hardiness Phenotyping, Dynamic Weather Modeling and Non-Targeted Metabolomic and Proteomic Analysis.
Sterle, David.

Addressing the Threat of Frost Damage on Peach Floral Buds Through Large-Scale Cold Hardiness Phenotyping, Dynamic Weather Modeling and Non-Targeted Metabolomic and Proteomic Analysis. - Ann Arbor : ProQuest Dissertations & Theses, 2023 - 141 p.

Source: Dissertations Abstracts International, Volume: 85-02, Section: A.

Thesis (Ph.D.)--Colorado State University, 2023.

Cold damage to reproductive tissues is the greatest threat to the profitability of peach (Prunus persica) growers worldwide. Cold hardiness is the extent to which peach floral buds super-freeze without suffering lethal damage. Although no changes are visible externally to floral buds for much of the dormant season, cold hardiness fluctuates as they acclimate, deacclimate and respond to abiotic stressors such as temperature or drought. A greater understanding of the mechanisms involved in these fluctuations involves accurate and frequent measurement of the extent to which cold hardiness is changing, and the ambient weather factors influencing the changes, at different stages of the dormant season. Warmer or more erratic temperature changes during the dormant season threatens peach floral buds to more frequently receive frost damage if cold hardiness becomes misaligned with the timing of lethally cold weather events.Statistical analysis of the trends and forces impacting the cold hardiness of floral buds can help identify significant patterns. These patterns can be used to better understand the physiological mechanisms affecting cold hardiness changes, and they can be used to help predict the impact of weather conditions on cold hardiness. In addition to their use in a practical sense by growers to aid in frost management decisions, accurate cold hardiness prediction models can be used to estimate what effects foreseeable climate effects can have on the outlook of future peach production.Metabolic changes are known to occur in dormant plants, although the effects of the metabolome in peaches on cold hardiness are unknown. Changes associated with cold hardiness likely follow several trends. One such trend is the fluctuations of metabolic abundances across the season, which are more associated with the endodormancy, and ecodormancy phases and the prebloom phase. These trends likely take place every dormant season as buds undergo a steady process of acclimating and deacclimating. Another trend is the response floral buds exhibit in response to acute cold events, in order to rapidly increase cold hardiness. The study of this response necessitates the monitoring of cold hardiness as well as the metabolic shift to the weather event. The response can be further elucidated by comparing cold hardiness and metabolic changes between genotypes that have different cold hardiness phenotypes. By exploring changes a cold hardy genotype undergoes, geneticists may be able to target certain metabolic expressions that may increase the frost tolerance of future cultivars.Since frost damage can be so destructive to peach production, it is necessary to understand the risks to the peach industry moving forward surrounding climate change, and it is also necessary to understand the extent to which frost tolerance can be improved in future cultivars. This study uses a multifaceted approach to cold hardiness which involves improved and large-scale cold hardiness phenotyping using differential thermal analysis, dynamic weather prediction models and associated metabolic regulation understanding.

ISBN: 9798380125642Subjects--Topical Terms:

555447
Horticulture.
Subjects--Index Terms:

Cold

Addressing the Threat of Frost Damage on Peach Floral Buds Through Large-Scale Cold Hardiness Phenotyping, Dynamic Weather Modeling and Non-Targeted Metabolomic and Proteomic Analysis.
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