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Intergeneration correlation and parent-offspring regression in rust resistance derived F4 and F5 generations in bread wheat

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Title Intergeneration correlation and parent-offspring regression in rust resistance derived F4 and F5 generations in bread wheat
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Creator REENA RANI
VIKRAM SINGH
M S PUNIA
 
Subject Intergeneration correlation
Narrow-sense heritability
Parent-offspring regression
Wheat
 
Description Not Available
The present investigation aimed to determine the intergeneration correlation and parent-offspring regression in
F4 and F5 generations of two wheat crosses, WH 1105 × WH 711 and RAJ 3765 × WH 711 grown during the rabi
2015-16 and 2016-17 in research area of Wheat and Barley Section, CCS HAU, Hisar. Correlation studies indicated
that grain yield/plant showed a significant positive correlation with almost all the yield attributing traits which may
be considered as prime traits during selection. Biological yield/plant had the highest positive direct effect on grain
yield/plant, followed by the harvest index. Almost all the characters had high indirect effects through biological yield/
plant and harvest index. The F4 generation progenies showed highly significant and positive values of intergeneration
correlation and regression with F5 generation progenies for all the characters in both the crosses. Therefore, the
performance of the plants in the F4 generation is a reliable indicator of the performance of their progeny in subsequent
generations. Narrow sense heritability values were high for the number of grains/ear, grain weight/ear and grain yield/
plant while response to selection values were high for the number of grains/ear, biological yield/plant, plant height and
number of spikelets/ear in the progenies of both crosses. Hence, improvement through selection can be based upon
these traits in these crosses. Thus estimation of correlation and regression analysis among yield and yield components
may provide effective selection criteria to improve wheat grain yield.
Not Available
 
Date 2021-08-06T05:37:30Z
2021-08-06T05:37:30Z
2021-05-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/53343
 
Language English
 
Relation Not Available;
 
Publisher Not Available