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פותח על ידי קלירמאש פתרונות בע"מ -
Quantitative genetic analysis of Sphaerotheca fuliginea sporulation in Cucurbit a pepo
Year:
1995
Authors :
כהן, רוני
;
.
לייבוביץ', גד
;
.
Volume :
114
Co-Authors:
Leibovich, G., Division of cucurbitis Research, Agricultural Research Organization, Newe Ya'ar Research Center, P.O. Box 90000, Haifa, 31900, Israel
Elkind, Y., Department of Field and Vegetable Crops and Genetics
Dinoor, A., Department of Plant Pathology and Microbiology, The Hebrew University of Jerusalem, Faculty of Agriculture, Rehovot, 76100, Israel
Cohen, R., Division of cucurbitis Research, Agricultural Research Organization, Newe Ya'ar Research Center, P.O. Box 90000, Haifa, 31900, Israel
Facilitators :
From page:
460
To page:
462
(
Total pages:
3
)
Abstract:
The inheritance mechanism by which summer squash (Cucurbita pepo L.) suppresses powdery mildew (caused by Sphaerotheca fuliginea) sporulation was studied by analysis of the sporulation yield per colony, measured spectrophotometrically at 700 nm. The value of the optical density (LOD) was used as the criterion for the pathogen sporulation. Three breeding lines of summer squash were used: Straightneck powdery mildew resistant (SNP), Benning's Green Tint (BGT) and Sihi Lavan (SLA), each differing in its susceptibility to powdery mildew. Cultivar SNP (resistant) was crossed with SLA (susceptible) or BGT (moderately susceptible) to generate F1 F2 and backcross populations. Continuous distribution was observed and joint scaling effect tests indicated that the additive‐dominant model was adequate. Narrow‐and broad‐sense heritability estimates for BGT × SNP were 0.74 and 0.85, respectively, and for SLA × SNP both were 0.79. These results indicate that it should be possible to select C. pepo populations on which S. fuliginea has low sporulation, and which consequently will exhibit quantitative resistance. Copyright © 1995, Wiley Blackwell. All rights reserved
Note:
Related Files :
Cucurbita pepo
Resistance
Sphaerotheca fuliginea
sporulation
עוד תגיות
תוכן קשור
More details
DOI :
10.1111/j.1439-0523.1995.tb00834.x
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
29011
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:43
Scientific Publication
Quantitative genetic analysis of Sphaerotheca fuliginea sporulation in Cucurbit a pepo
114
Leibovich, G., Division of cucurbitis Research, Agricultural Research Organization, Newe Ya'ar Research Center, P.O. Box 90000, Haifa, 31900, Israel
Elkind, Y., Department of Field and Vegetable Crops and Genetics
Dinoor, A., Department of Plant Pathology and Microbiology, The Hebrew University of Jerusalem, Faculty of Agriculture, Rehovot, 76100, Israel
Cohen, R., Division of cucurbitis Research, Agricultural Research Organization, Newe Ya'ar Research Center, P.O. Box 90000, Haifa, 31900, Israel
Quantitative genetic analysis of Sphaerotheca fuliginea sporulation in Cucurbit a pepo
The inheritance mechanism by which summer squash (Cucurbita pepo L.) suppresses powdery mildew (caused by Sphaerotheca fuliginea) sporulation was studied by analysis of the sporulation yield per colony, measured spectrophotometrically at 700 nm. The value of the optical density (LOD) was used as the criterion for the pathogen sporulation. Three breeding lines of summer squash were used: Straightneck powdery mildew resistant (SNP), Benning's Green Tint (BGT) and Sihi Lavan (SLA), each differing in its susceptibility to powdery mildew. Cultivar SNP (resistant) was crossed with SLA (susceptible) or BGT (moderately susceptible) to generate F1 F2 and backcross populations. Continuous distribution was observed and joint scaling effect tests indicated that the additive‐dominant model was adequate. Narrow‐and broad‐sense heritability estimates for BGT × SNP were 0.74 and 0.85, respectively, and for SLA × SNP both were 0.79. These results indicate that it should be possible to select C. pepo populations on which S. fuliginea has low sporulation, and which consequently will exhibit quantitative resistance. Copyright © 1995, Wiley Blackwell. All rights reserved
Scientific Publication
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