Tools for climate resilience in tree fruit I: large-dwarfing rootstocks can alleviate sunburn damage in "Buckeye Gala" apple

被引：0
作者：
Xu, Hao [1 ]
Blatt, Suzanne [2 ]
Ediger, Danielle [1 ]
机构：
[1] Agr & Agri Food Canada, Summerland Res & Dev Ctr, Summerland, BC V0H 1Z0, Canada
[2] Agr & Agri Food Canada, Kentville Res & Dev Ctr, Kentville, NS B4N 1J5, Canada
来源：
CANADIAN JOURNAL OF PLANT SCIENCE | 2022年
关键词：
canopy volume; heat stress; rootstock vigor; stem water potential; sunburn browning;
D O I：
10.1139/CJPS-2022-0080
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Suitable rootstock enhances apple tree resilience. In 2021, we studied "Buckeye Gala" apple (Malus domestica var. Buckeye Gala") on nine rootstocks with contrasting vigor in NS and BC, Canada. Rootstock effects on vigor, yield, and midday stem water potential were significant in BC. After sustained heat events, the large-dwarfing rootstocks Geneva 935, Geneva 4814, and Geneva 969 had lower ratio of sunburn fruits, resulting in higher projected damage-f ree yield. We discussed how higher stem water potential and larger canopy volume supported by vigorous rootstocks contributed to alleviate heat stress and improve apple resilience to global warming.
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页数：5
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