Details
| Original language | English |
|---|---|
| Article number | 108517 |
| Journal | Scientia horticulturae |
| Volume | 256 |
| Early online date | 1 Jun 2019 |
| Publication status | Published - 15 Oct 2019 |
Abstract
Replant disease, also described as soil decline, is known for centuries; yet the ultimate causes remain unknown. After repeated growing of the same plant species, the soil loses its capacity to support the growth of plants of the respective species. Replant disease is characterized by a poor vegetative development, stunted growth and reduced yield in terms of quantity and quality. A growing concern for tree nurseries and orchards is that most dwarfing apple rootstocks used in modern apple cultivation are susceptible to apple replant disease (ARD). Thus, the use of ARD-tolerant rootstocks would be a sustainable and economically advantageous solution. Currently, only a few Malus genotypes less susceptible to ARD are described. Identifying ARD-tolerant genotypes and understanding the molecular and physiological basis underpinning such tolerance are prerequisites for future rootstock breeding. Hence, in a greenhouse bio-test, the responses to ARD were evaluated for 48 Malus genotypes, including 41 accessions of 18 wild apple species and 7 rootstock genotypes. Susceptibility to ARD was classified by an ARD-susceptibility index (ASI) calculated based on biomass and increase in shoot length increase, respectively, after cultivation of each genotype in both ARD-soil and disinfected ARD soil by γ-irradiation. In total, six accessions were categorized as less susceptible based on either the ASI_biomass or the ASI_shoot. These accessions are available for future breeding of less susceptible rootstocks.
Keywords
- Apple replant disease (ARD), Greenhouse bio-test, Malus germplasm, Rootstock breeding, Soil fatigue, Susceptibility index
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Horticulture
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In: Scientia horticulturae, Vol. 256, 108517, 15.10.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Evaluation of Malus genetic resources for tolerance to apple replant disease (ARD)
AU - Reim, Stefanie
AU - Siewert, Christin
AU - Winkelmann, T.
AU - Wöhner, Thomas
AU - Hanke, Magda Viola
AU - Flachowsky, Henryk
N1 - Funding Information: The authors gratefully acknowledge funding of the project BonaRes-ORDIAmur by the German Federal Ministry of Research and Education within the frame of the program BonaRes (grant no. 031B0025B ). The authors are grateful to Uta Hille, Marlene Tronicke, Arvid Lauber, Sabine Bartsch and Ines Polster for their technical assistance. Francis Ofere Emeriewen is acknowledged for proof-reading of the manuscript as a native speaker.
PY - 2019/10/15
Y1 - 2019/10/15
N2 - Replant disease, also described as soil decline, is known for centuries; yet the ultimate causes remain unknown. After repeated growing of the same plant species, the soil loses its capacity to support the growth of plants of the respective species. Replant disease is characterized by a poor vegetative development, stunted growth and reduced yield in terms of quantity and quality. A growing concern for tree nurseries and orchards is that most dwarfing apple rootstocks used in modern apple cultivation are susceptible to apple replant disease (ARD). Thus, the use of ARD-tolerant rootstocks would be a sustainable and economically advantageous solution. Currently, only a few Malus genotypes less susceptible to ARD are described. Identifying ARD-tolerant genotypes and understanding the molecular and physiological basis underpinning such tolerance are prerequisites for future rootstock breeding. Hence, in a greenhouse bio-test, the responses to ARD were evaluated for 48 Malus genotypes, including 41 accessions of 18 wild apple species and 7 rootstock genotypes. Susceptibility to ARD was classified by an ARD-susceptibility index (ASI) calculated based on biomass and increase in shoot length increase, respectively, after cultivation of each genotype in both ARD-soil and disinfected ARD soil by γ-irradiation. In total, six accessions were categorized as less susceptible based on either the ASI_biomass or the ASI_shoot. These accessions are available for future breeding of less susceptible rootstocks.
AB - Replant disease, also described as soil decline, is known for centuries; yet the ultimate causes remain unknown. After repeated growing of the same plant species, the soil loses its capacity to support the growth of plants of the respective species. Replant disease is characterized by a poor vegetative development, stunted growth and reduced yield in terms of quantity and quality. A growing concern for tree nurseries and orchards is that most dwarfing apple rootstocks used in modern apple cultivation are susceptible to apple replant disease (ARD). Thus, the use of ARD-tolerant rootstocks would be a sustainable and economically advantageous solution. Currently, only a few Malus genotypes less susceptible to ARD are described. Identifying ARD-tolerant genotypes and understanding the molecular and physiological basis underpinning such tolerance are prerequisites for future rootstock breeding. Hence, in a greenhouse bio-test, the responses to ARD were evaluated for 48 Malus genotypes, including 41 accessions of 18 wild apple species and 7 rootstock genotypes. Susceptibility to ARD was classified by an ARD-susceptibility index (ASI) calculated based on biomass and increase in shoot length increase, respectively, after cultivation of each genotype in both ARD-soil and disinfected ARD soil by γ-irradiation. In total, six accessions were categorized as less susceptible based on either the ASI_biomass or the ASI_shoot. These accessions are available for future breeding of less susceptible rootstocks.
KW - Apple replant disease (ARD)
KW - Greenhouse bio-test
KW - Malus germplasm
KW - Rootstock breeding
KW - Soil fatigue
KW - Susceptibility index
UR - http://www.scopus.com/inward/record.url?scp=85066339641&partnerID=8YFLogxK
U2 - 10.1016/j.scienta.2019.05.044
DO - 10.1016/j.scienta.2019.05.044
M3 - Article
AN - SCOPUS:85066339641
VL - 256
JO - Scientia horticulturae
JF - Scientia horticulturae
SN - 0304-4238
M1 - 108517
ER -