scholarly journals Inheritance of Nitrogen Use Efficiency in Inbred Progenies of Tropical Maize Based on Multivariate Diallel Analysis

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Fernando Lisboa Guedes ◽  
Rafael Parreira Diniz ◽  
Marcio Balestre ◽  
Camila Bastos Ribeiro ◽  
Renato Barbosa Camargos ◽  
...  
Keyword(s):  
Genetic Control ◽  
Nitrogen Use Efficiency ◽  
Combining Ability ◽  
Diallel Cross ◽  
General Combining Ability ◽  
Genetic Effects ◽  
Tropical Maize ◽  
Nitrogen Use ◽  
Complete Diallel Cross ◽  
Use Efficiency

The objective of our study was to characterize and determine the patterns of genetic control in relation to tolerance and efficiency of nitrogen use by means of a complete diallel cross involving contrasting inbred progenies of tropical maize based on a univariate approach within the perspective of a multivariate mixed model. Eleven progenies, previously classified regarding the tolerance and responsiveness to nitrogen, were crossed in a complete diallel cross. Fifty-five hybrids were obtained. The hybrids and the progenies were evaluated at two different nitrogen levels, in two locations. The grain yield was measured as well as its yield components. The heritability values between the higher and lower nitrogen input environment did not differ among themselves. It was observed that the general combining ability values were similar for both approaches univariate and multivariate, when it was analyzed within each location and nitrogen level. The estimate of variance of the specific combining ability was higher than general combining ability estimate and the ratio between them was 0.54. The univariate and multivariate approaches are equivalent in experiments with good precision and high heritability. The nonadditive genetic effects exhibit greater quantities than the additive genetic effects for the genetic control of nitrogen use efficiency.

Combining Ability of Traits Related to Nitrogen Use Efficiency in Eighteen Maize Inbred Lines

2014 ◽  
Vol 40 (5) ◽  
pp. 838 ◽  
Author(s):  
Chao CUI ◽  
Ju-Lin GAO ◽  
Xiao-Fang YU ◽  
Zhi-Jun SU ◽  
Zhi-Gang WANG ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Combining Ability ◽  
Inbred Lines ◽  
Nitrogen Use ◽  
Maize Inbred Lines ◽  
Use Efficiency

scholarly journals Nitrogen use efficiency in forage yield of tropical maize populations

2014 ◽  
Vol 35 (3) ◽  
pp. 1209
Author(s):  
Leandro Lopes Cancellier ◽  
Renzo Garcia Von Pinho ◽  
Eduardo Lopes Cancellier ◽  
Luiz Paulo Miranda Pires ◽  
Flávio Sérgio Afférri ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Forage Yield ◽  
Tropical Maize ◽  
Nitrogen Use ◽  
Maize Populations ◽  
Use Efficiency

Genetic Variation for Nitrogen-Use Efficiency Among Selected Tropical Maize Hybrids Differing in Grain Yield Potential

2013 ◽  
Vol 27 (1) ◽  
pp. 31-52 ◽  
Author(s):  
Ayodeji Abe ◽  
Abebe Menkir ◽  
Stephen Patrick Moose ◽  
Victor Olawale Adetimirin ◽  
Amudalat Bolanle Olaniyan
Keyword(s):  
Genetic Variation ◽  
Grain Yield ◽  
Nitrogen Use Efficiency ◽  
Yield Potential ◽  
Tropical Maize ◽  
Nitrogen Use ◽  
Maize Hybrids ◽  
Use Efficiency

Association mapping for traits related to nitrogen use efficiency in tropical maize lines under field conditions

2017 ◽  
Vol 421 (1-2) ◽  
pp. 453-463 ◽  
Author(s):  
Júlia Silva Morosini ◽  
Leandro de Freitas Mendonça ◽  
Danilo Hottis Lyra ◽  
Giovanni Galli ◽  
Miriam Suzane Vidotti ◽  
...  
Keyword(s):  
Association Mapping ◽  
Nitrogen Use Efficiency ◽  
Field Conditions ◽  
Tropical Maize ◽  
Nitrogen Use ◽  
Use Efficiency

A STUDY OF COMBINING ABILITY FOR GRAIN PROTEIN PERCENTAGE IN A DIALLEL CROSS OF FIVE SIX-ROW BARLEY CULTIVARS

1974 ◽  
Vol 54 (4) ◽  
pp. 605-609 ◽  
Author(s):  
K. G. BRIGGS
Keyword(s):  
Combining Ability ◽  
Diallel Cross ◽  
General Combining Ability ◽  
Grain Protein ◽  
Hordeum Vulgare L ◽  
Protein Percentage ◽  
Barley Cultivars ◽  
Combining Ability Analysis ◽  
Lower Protein ◽  
Complete Diallel Cross

Grain protein percentage was assessed in F1 and F2 populations in two experiments involving a complete diallel cross among the barley (Hordeum vulgare L.) cultivars Bonanza, Conquest, Olli, Galt and Jubilee. Heterosis was absent in all crosses and a Griffing combining ability analysis showed that specific combining ability was nonsignificant in both F1 and F2 populations. General combining ability (GCA) for protein percentage was highly significant in both generations, with Conquest and Olli having major positive GCA effects. Galt produced a large negative GCA effect, while Jubilee and Bonanza caused small negative GCA effects. Significant differences between the hybrids were found only in F1. Broad sense heritabilities for protein differences between the parents were 0.57 and 0.72 in the two experiments, and were significant at the 5 and 1% levels of significance, respectively. Conquest had significantly higher protein than Bonanza, with Olli being intermediate. Galt had lower protein than Jubilee, but this difference was significant in only one experiment. The differences among the five cultivars for mean grain protein percentage and general combining ability are significant in relation to breeding for malting and feed type barleys.

STUDIES ON COMBINING ABILITY IN STRAWBERRY (FRAGARIA × ANANASSA): I. NUMBER OF INFLORESCENCES, NUMBER OF FLOWERS, DAYS TO MATURITY AND NUMBER OF FRUITS

1981 ◽  
Vol 23 (3) ◽  
pp. 373-378 ◽  
Author(s):  
Shri Dhar Lal ◽  
Jitendra Nath Seth
Keyword(s):  
Combining Ability ◽  
Diallel Cross ◽  
General Combining Ability ◽  
Specific Combining Ability ◽  
Fragaria Ananassa ◽  
Specific Combination ◽  
Cytoplasmic Effects ◽  
Days To Maturity ◽  
Complete Diallel Cross

A 10 × 10 complete diallel cross was carried out in the strawberry (Fragaria × ananassa Duch.). Significant general (gca) and specific combining ability (sea) effects were recorded. The variances due to general combining ability exceeded the variances due to specific combining ability. Cytoplasmic effects were also noted. The variety Kalimpong Local was found to be a good general combiner for number of inflorescences, number of flowers and number of fruits. The variety Albritton had highest gca effect for number of inflorescences. The variety Premier was a good general combiner for number of flowers. The Redcoat showed highest gca effect for days to maturity. The best specific combination for number of inflorescences was Phenomenal × Jeolikote Local in F1 and Premier × Kalimpong Local in F2. For number of fruits Albritton × Kalimpong Local and Premier × Cavalier were the best.

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