scholarly journals Response of Seed Yield, Yield Components and Oil Content to the Sesame Cultivar and NitrogenFertilizer Rate Diversity

2009 ◽  
Vol 20 (2) ◽  
pp. 21-31 ◽  
Author(s):  
Fathy El-Nakhlawy ◽  
Fathy El-Nakhlawy
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Oil Content

Seeding date influence on camelina seed yield, yield components, and oil content in Chile

2011 ◽  
Vol 34 (2) ◽  
pp. 1358-1365 ◽  
Author(s):  
Marisol Berti ◽  
Rosemarie Wilckens ◽  
Susana Fischer ◽  
Alejandro Solis ◽  
Burton Johnson
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Oil Content ◽  
Seeding Date ◽  
Camelina Seed

scholarly journals Combining ability and heritability estimates of main agronomic characters in rapeseed breeding lines using line × tester analysis

2012 ◽  
Vol 57 (3) ◽  
pp. 111-120 ◽  
Author(s):  
Valiollah Rameeh
Keyword(s):  
Seed Yield ◽  
Combining Ability ◽  
Yield Components ◽  
Seed Weight ◽  
Oil Content ◽  
Genetic Effects ◽  
Narrow Sense Heritability ◽  
Breeding Lines ◽  
Heritability Estimates ◽  
Additive Genetic Effects

To estimate the general and specific combining ability (GCA and SCA) effects of plant height, yield components, seed yield and oil content, three testers and six lines of spring type of rapeseed varieties were crossed using line ? tester fashion. Significant mean squares of parents and crosses for all the traits indicated significant genetic variation among the parents and their F1 crosses. Significant mean squares of parents vs crosses revealed significant average heterosis for all the traits except seeds per pod, 1000-seed weight and oil content. High narrow-sense heritability estimates for all the traits except seeds per pod, indicating the importance of additive genetic effects for these traits. Due to more importance of additive genetic effects for most of the traits, only a few of the crosses exhibited significant SCA effects. A significant positive correlation between seed yield and some of yield components including pods on main axis, pods per plant and 1000-seed weight indicates that these traits can be used as suitable selection criteria for improving of seed yield. The crosses including Opt ? R01, RG06 ? R01, RG06 ? R08 and RGS3 ? R08 with 3241.91, 3213.68, 3334.28 and 3237.45 kg ha-1 of seed yield detected as prior combinations for improving of this trait and all of these combinations had also positive SCA effect for this trait.

Combining Ability Studies for Development of New Sunflower Hybrids Based on Diverse Cytoplasmic Sources

Helia ◽  
2016 ◽  
Vol 39 (64) ◽  
pp. 71-80 ◽  
Author(s):  
S. K. Dhillon ◽  
Vikrant Tyagi
Keyword(s):  
Seed Yield ◽  
Combining Ability ◽  
Yield Components ◽  
Oil Content ◽  
Female Parent ◽  
Male Parent ◽  
Spring Season ◽  
Mean Values ◽  
Early Maturing ◽  
Late Maturity

AbstractThe experiment involved 7 different cms analogues as a female parent and 6 restores lines as male parent to synthesis of a set of these 42 hybrids. The experiment was conducted during spring season 2012 in Line×Tester breeding design and evaluated for combining ability of 7 morphological, physiological and important sunflower yield components traits. The results based on GCA effects of parents for different characters revealed that among the lines DV-10A and among testers P93R, P143R and RHA83R6 were found to be the good general combiners for seed yield and oil content with early maturing except P143R, which is good combiner for flowering and late maturity. The crosses CMS-XA×RHA83R6 and PRUN-29A×RHA83R6 were found to be superior and exhibited highest SCA effects with highest mean values for oil content but for seed yield having negative SCA effects with average for seed yield. The hybrids PKU-2A×RHA83R6 and E002-91A×P93R having high mean seed yield with high SCA effects.

Combining ability and heterosis studies across environments in linseed (Linum usitatissimum L.)

2011 ◽  
Vol 59 (1) ◽  
pp. 87-102 ◽  
Author(s):  
S. Sood ◽  
N. Kalia ◽  
S. Bhateria
Keyword(s):  
Seed Yield ◽  
Linum Usitatissimum ◽  
Combining Ability ◽  
Yield Components ◽  
Block Design ◽  
Linum Usitatissimum L ◽  
Randomized Block Design ◽  
Component Traits ◽  
Parental Lines ◽  
Fibre Yield

Combining ability and heterosis were calculated for fourteen lines of linseed in a line × tester mating design using twelve lines and two diverse testers in two different environments. The hybrids and parental lines were raised in a completely randomized block design with three replications to investigate seed and fibre yield and their component traits. Genetic variation was significant for most of the traits over environments. Combining ability studies revealed that the lines KL-221 and LCK-9826 were good general combiners for seed yield and most of its components, whereas LMH-62 and LC-2323 were good general combiners for yield components only. Moreover, KL-221 was also a good general combiner for fibre yield. Similarly, B-509 and Ariane were good general combiners for fibre yield and most of its components. Among the specific cross combinations, B-509 × Flak-1 was outstanding for seed yield per plant and B-509 × KL-187 and LC-2323 × LCK-9826 for fibre yield per plant, with high SCA effects. In general, the hybrids excelled their respective parents and the standard checks for most of the characters studied. Based on the comparison of mean performance, SCA effects and the extent of heterosis, the hybrids LC-2323 × LCK-9826 and B-509 × KL-221 appeared to be the most promising for both seed and fibre yield. Other promising combinations were LC-2323 × KL-210 and B-509 × Ariane for seed and fibre yield, respectively. The superiority of LC-2323, LCK-9826, KL-221, B-509 and Ariane as good general combiners was further confirmed by the involvement of these parents in the desirable cross combinations.

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.

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