Record Details

Inheritance of resistance to late blight (Phytophthora infestans) in potato

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Inheritance of resistance to late blight (Phytophthora infestans) in potato
Not Available
 
Creator Not Available
 
Subject Phytophthora infestans Solanum tuberosum Late blight Quantitative resistance Combining ability Parent-progeny correlation
 
Description Not Available
Under epiphytotic conditions for late blight in spring seasons, data were recorded on its intensity four times at 4 days intervals from the start of the disease in the field, in 114 (19 females · 6 males) progenies and their parents planted in randomized complete block design in the years 2005 and 2006. Regression and stepwise regression analysis showed that observations during the rapidly increasing phase of disease between initial and last phase of disease are more important than the observations at initial and last phase of the disease. Combining ability analysis on a sub-set of 68 progenies showed that the additive component of genetic variance was more important than the non-additive component of variance in inheritance of quantitative resistance to late blight. The per se performance of the parents does give an idea about their general combining ability (GCA). However, selection of parents based on their GCA will be very useful for breeding for quantitative resistance to late blight. Parents JX 90, JF 4841, CP 3356, CP 1358,CP 3290, JN 1197 and CP 3125 were found to have good GCA for quantitative resistance for late blight and the best six crosses for late bilght resistance based on mean performance involved parents with good combining ability only.
Not Available
 
Date 2018-10-24T09:20:18Z
2018-10-24T09:20:18Z
2006-12-11
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/8061
 
Language English
 
Relation Not Available;
 
Publisher Not Available