Combining ability analysis of days to silking, plant height, yield components and kernel yield in maize breeding lines

2012 ◽  
Vol 7 (36) ◽  
Author(s):  
Mohammad Hossein Haddadi
Keyword(s):  
Plant Height ◽  
Combining Ability ◽  
Yield Components ◽  
Maize Breeding ◽  
Breeding Lines ◽  
Combining Ability Analysis ◽  
Kernel Yield

Combining Ability of Plant Height and Yield components in Indian Mustard (Brassica junceaL.Czern & Coss.) under Salt affected Soil using Line×Tester Analysis

2016 ◽  
Vol 3 (2) ◽  
Author(s):  
SHAILESH CHAND GAUTAM ◽  
MP Chauhan
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Combining Ability ◽  
Yield Components ◽  
Indian Mustard ◽  
Heritability Estimate ◽  
Genetic Effects ◽  
Narrow Sense ◽  
Narrow Sense Heritability ◽  
Additive Genetic Effects

Line × tester analysis of twenty lines and three testers of Indian mustard (Brassica juncea L. Czern & Coss.) cultivars were used to estimate general combining ability (GCA), specific combining ability (SCA) effects, high parent heterosis and narrow-sense heritability estimate for plant height, yield components and seed yield. Significant variance of line x tester for the traits like pods per plant and seed yield indicating non additive genetic effects have important role for controlling these traits. Significant mean squares of parents v/s crosses which are indicating significant average heterosis were also significant for all the traits except seeds per pod. High narrow-sense heritability estimates for all the traits except seeds per pod exhibited the prime importance of additive genetic effects for these traits except seeds per pod. Most of the crosses with negative SCA effect for plant height had at least one parent with significant negative or negative GCA effect for this trait. For most of the traits except pods per plant, the efficiency of high parent heterosis effect was more than SCA effect for determining superior cross combinations.

COMBINING ABILITY ANALYSIS AND INTERRELATIONSHIPS BETWEEN THORNINESS AND YIELD TRAITS IN GOOSEBERRY

1970 ◽  
Vol 50 (4) ◽  
pp. 439-444 ◽  
Author(s):  
L. P. S. SPANGELO ◽  
C. S. HSU ◽  
S. O. FEJER ◽  
R. WATKINS
Keyword(s):  
Plant Height ◽  
Combining Ability ◽  
General Combining Ability ◽  
Fruit Yield ◽  
Yield Traits ◽  
Genetic Barrier ◽  
Berry Weight ◽  
Combining Ability Analysis ◽  
Positive Correlations ◽  
One Year

Combining ability and interrelationships among four characters were studied in six gooseberry (Ribes grossularia) progenies produced by crossing each of two thornless to three large-fruited cultivars. Measurements were recorded for four consecutive years for fruit yield and 100-berry weight, and for one year for thorniness and plant height. General and specific combining abilities were significant and their interactions with years were not significant for fruit yield and berry weight, and general combining ability was significant for thorniness. Genotypic correlations agreed closely with the phenotypic correlations. Significant positive correlations were obtained between fruit yield with berry weight and plant height. The nonsignificant correlations between thorniness with fruit yield, berry weight and plant height suggest no genetic barrier to combining thornlessness with these traits.

Combining Ability Analysis of Yield and Yield Components in Sunflower

2006 ◽  
Vol 9 (12) ◽  
pp. 2328-2332
Author(s):  
Masood Jan ◽  
Ghulam Hassan . ◽  
Iftikhar Hussain . ◽  
Razi-u-Din .
Keyword(s):  
Combining Ability ◽  
Yield Components ◽  
Combining Ability Analysis ◽  
Yield And Yield Components

Combining Ability Analysis for Achene Yield and Related Components in Sunflower (Helianthus annuus L.)

Helia ◽  
2017 ◽  
Vol 40 (67) ◽  
Author(s):  
Adeel Riaz ◽  
Muhammad Hammad Nadeem Tahir ◽  
Muhammad Rizwan ◽  
Mian Faisal Nazir ◽  
Bisma Riaz
Keyword(s):  
Plant Height ◽  
Combining Ability ◽  
Stem Diameter ◽  
Cross Combination ◽  
Head Diameter ◽  
Combining Ability Analysis ◽  
Days To Maturity ◽  
Number Of Leaves ◽  
Breeding And Genetics

AbstractFor determination of best general and specific combiners for achene yield and related components, a study on a 7×7 diallel fashion in sunflower was conducted at experimental field of Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan. The data were recorded on quantitative traits; days to maturity, plant height, stem diameter, head diameter, number of leaves, Achene per head, achene yield per plant, 100-achene weight, filled achene percentage and oil contents and subjected to Analysis of variance and combining abilities. The accessions were significant for studied traits except oil contents. The accessions A-544, A-554 and A-552 showed significant general combining ability effects days to maturity, plant height, stem diameter, head diameter, number of leaves and filled achene, achene per head and achene yield per plant. The best cross combination A-546×A-560 showed significant specific combining ability effects for number of leaves and filled achene percentage. Among reciprocal crosses, the cross A-560×A-534 proved best for plant height and stem diameter while A-548×A-546 for number of leaves and achene per head.

Combining ability analysis and association of yield and yield components among selected cowpea lines

Euphytica ◽  
2007 ◽  
Vol 162 (2) ◽  
pp. 205-210 ◽  
Author(s):  
Kwaye G. Romanus ◽  
Shimelis Hussein ◽  
William P. Mashela
Keyword(s):  
Combining Ability ◽  
Yield Components ◽  
Combining Ability Analysis ◽  
Yield And Yield Components
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