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פותח על ידי קלירמאש פתרונות בע"מ -
Evaluation of parents and selection for heat tolerance in the early generations of a potato (Solanum tuberosum L.) breeding program
Year:
1991
Source of publication :
Theoretical and Applied Genetics
Authors :
יצחק, י'
;
.
לוי, דוד (גידולי שדה)
;
.
קסטנבאום, א'
;
.
Volume :
82
Co-Authors:
Levy, D., Department of Vegetable Crops, ARO, The Volcani Center, Bet Dagan, 50-250, Israel
Kastenbaum, E., Department of Vegetable Crops, ARO, The Volcani Center, Bet Dagan, 50-250, Israel
Itzhak, Y., Department of Vegetable Crops, ARO, The Volcani Center, Bet Dagan, 50-250, Israel
Facilitators :
From page:
130
To page:
136
(
Total pages:
7
)
Abstract:
Potato cultivars (Solanum tuberosum L.) were evaluated for their capacity to form tubers under high temperature conditions (heat tolerance). In an experiment conducted in the hot summer season in the field and in experiments conducted under controlled environments in glasshouses, differences in tolerance to heat were noted among the various genotypes. Although heat tolerance tended to be associated with earliness in maturation, differences in the response to high temperatures were observed in genotypes of the same maturity class. Progeny of the cultivars Desiree and Cara, and hybrid progeny of Cara x Desiree and of Blanka x Cara were screened for heat tolerance in controlled environments in glasshouses. Long photoperiod delayed tuberization but high temperatures strongly inhibited tuber formation, which was 4% in the progeny of Desiree, <2% in the progeny of Cara and of Cara x Desiree, and ca. 16% in progeny of Blanka x Cara. For seedlings that did not form tubers in the hot glasshouse but were subsequently transferred to the cool glasshouse, tuberization was much enhanced and clones selected through this dual procedure exhibited tolerance to heat in the first conal year. The results of this study indicate that: (a) tolerance to heat is associated with earliness; however, differences in the response to heat exist among late-maturing cultivars; (b) tolerance to heat, as assessed by the capacity to form tubers under high temperatures, is genetically controlled, and the timing of tuberization might be independent of the rate of tuberization in hybrid progeny; (c) the incidence of heat tolerance in progeny population is correlated with the relative tolerance of the parents; and (d) the dual selection procedure is an efficient approach for the selection of heat-tolerant clones. © 1991 Springer-Verlag.
Note:
Related Files :
Controlled environment
cultivars
Families
Maturity classes
Selection efficiency
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/BF00226203
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26846
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:25
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Scientific Publication
Evaluation of parents and selection for heat tolerance in the early generations of a potato (Solanum tuberosum L.) breeding program
82
Levy, D., Department of Vegetable Crops, ARO, The Volcani Center, Bet Dagan, 50-250, Israel
Kastenbaum, E., Department of Vegetable Crops, ARO, The Volcani Center, Bet Dagan, 50-250, Israel
Itzhak, Y., Department of Vegetable Crops, ARO, The Volcani Center, Bet Dagan, 50-250, Israel
Evaluation of parents and selection for heat tolerance in the early generations of a potato (Solanum tuberosum L.) breeding program
Potato cultivars (Solanum tuberosum L.) were evaluated for their capacity to form tubers under high temperature conditions (heat tolerance). In an experiment conducted in the hot summer season in the field and in experiments conducted under controlled environments in glasshouses, differences in tolerance to heat were noted among the various genotypes. Although heat tolerance tended to be associated with earliness in maturation, differences in the response to high temperatures were observed in genotypes of the same maturity class. Progeny of the cultivars Desiree and Cara, and hybrid progeny of Cara x Desiree and of Blanka x Cara were screened for heat tolerance in controlled environments in glasshouses. Long photoperiod delayed tuberization but high temperatures strongly inhibited tuber formation, which was 4% in the progeny of Desiree, <2% in the progeny of Cara and of Cara x Desiree, and ca. 16% in progeny of Blanka x Cara. For seedlings that did not form tubers in the hot glasshouse but were subsequently transferred to the cool glasshouse, tuberization was much enhanced and clones selected through this dual procedure exhibited tolerance to heat in the first conal year. The results of this study indicate that: (a) tolerance to heat is associated with earliness; however, differences in the response to heat exist among late-maturing cultivars; (b) tolerance to heat, as assessed by the capacity to form tubers under high temperatures, is genetically controlled, and the timing of tuberization might be independent of the rate of tuberization in hybrid progeny; (c) the incidence of heat tolerance in progeny population is correlated with the relative tolerance of the parents; and (d) the dual selection procedure is an efficient approach for the selection of heat-tolerant clones. © 1991 Springer-Verlag.
Scientific Publication
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