Combining ability studies for lodging resistance and yield traits in rice

CO429 is a short-season corn inbred line with good combining ability, average to superior lodging resistance in hybrids, and excellent emergence and early season vigour. Key words: Corn, maize, Zea mays, cultivar description

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The Effects of Combining Ability for Yield Traits in Rice (Oryza sativa L.) under Sodic Soil

Current Journal of Applied Science and Technology ◽

10.9734/cjast/2020/v39i1230661 ◽

2020 ◽

pp. 34-44

Author(s):

Durgesh Kumar Shukla ◽

S. N. Singh ◽

S. C. Gaur ◽

Anil Kumar

Keyword(s):

Combining Ability ◽

Gene Action ◽

Oryza Sativa L ◽

Hybrid Vigour ◽

Yield Traits ◽

Additive Gene Action ◽

Early Maturity ◽

Additive Gene ◽

Rice Genotypes ◽

Positive Effect

Information on combining ability is derived from data on twelve yield and yield contributing characters in fifteen male and three female parents utilised in line x tester fashion to estimate combining ability of rice genotypes under coastal saline condition. Forty Five hybrids generated from crossing three lines with fifteen testers were studied along with their parents for combining ability and gene action involved in the expression of characters in rice. The gca and sca effects were significant for all the characters. The magnitude of sca variance was higher than the gca variance for all the characters revealed the presence of predominance of non-additive gene action for all the characters under study. Halchal (-12.29) was found to be good general combiners for days to 50% flowering and early maturity, Halchal (-13.39). However, IR-24 (1.88) was good general combiners with significant positive effect for tallness. Magic (-12.05) good general combiners for dwarfness and Shriram 434 (1.57) was good general combiners for test weight however, Moti was best general combiner with gca estimates of 7.07 for harvest index and Kuber (3.48) was the good general combiners for yield/hill. Cross combinations RHR 27 x IR 24 (4.04) was significant and positive effect for yield/hill, performance for ear bearing tillers per plant were RHR 27 x IR 24 (1.88). In general, the crosses showing significant and desirable combining ability effects were associated with better per se performance for the respective traits. These hybrids could be utilized in heterosis breeding to exploit hybrid vigour.

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Assessment of Combining Ability Effects for several Yield and Quality Traits in a Complete Diallel Cross of Strawberry (Fragaria × ananassa Duch.)

Notulae Botanicae Horti Agrobotanici Cluj-Napoca ◽

10.15835/nbha45210873 ◽

2017 ◽

Vol 45 (2) ◽

pp. 517-524

Author(s):

Sorin CIULCA ◽

Natalia CARP ◽

Emilian MADOŞA ◽

Adriana CIULCA ◽

Radu ŞUMĂLAN

Keyword(s):

Combining Ability ◽

Gene Action ◽

Sugar Content ◽

Fruit Weight ◽

Yield Traits ◽

Quality Traits ◽

Additive Gene Action ◽

Plant Yield ◽

Yield And Quality ◽

Additive Gene

Information on the inheritance of yield and quality traits is important for the selection of parents and breeding approaches to be adopted for the improvement of strawberry. The present study aimed to estimate the combining ability and gene effects for plant yield, fruits number/plant, fruit weight, pulp firmness and sugar content of strawberries in order to identify the best genitors and promising crosses, in 30 hybrids of six parents. The additive and non-additive gene action as well as the maternal effects was involved in the inheritance of the studied traits. For all traits, especially for fruit weight and plant yield, the additive gene action was more important than the non-additive one. The parents ‘A1’ and ‘Alba’ showed a higher concentration of favourable alleles for plant yield and fruits number, and they will allow the increase of plant yield when used as a donor of pollen and the increase of fruit number when used as a recipient of pollen. The variety ‘Marmolada’ was a good general combiner for sugar content, pulp firmness and fruit weight, especially when used as a female genitor. These parents could be used in hybridization in order to accelerate the genetic improvement of some yield and quality traits in strawberries. The cross ‘Mira’ × ‘Onda’ expressed desirable specific combining ability effects for yield traits and can be successfully use in strawberries breeding programs. In the case of ‘Alba’ × ‘Clery’ there is a high probability to select progenies with valuable yield traits associated with sweet fruits.

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

Canadian Journal of Plant Science ◽

10.4141/cjps70-080 ◽

1970 ◽

Vol 50 (4) ◽

pp. 439-444 ◽

Cited By ~ 1

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.

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Marker Genotypes for Parents of Japonica Hybrid Rice with High Combining Ability of Yield Traits

Acta Agronomica Sinica ◽

10.1016/s1875-2780(09)60064-x ◽

2010 ◽

Vol 36 (8) ◽

pp. 1270-1279 ◽

Cited By ~ 1

Author(s):

Kui LIANG ◽

Dian-Cheng HUANG ◽

Kai-Ming ZHAO ◽

Phuong-Tung NGUYEN ◽

Hui XIE ◽

...

Keyword(s):

Combining Ability ◽

Hybrid Rice ◽

Yield Traits

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Combining Ability and Heterosis for Agronomic and Yield Traits in Indica and Japonica Rice Crosses

Journal of Agricultural Science ◽

10.5539/jas.v10n12p92 ◽

2018 ◽

Vol 10 (12) ◽

pp. 92 ◽

Cited By ~ 1

Author(s):

M. E. Yuga ◽

J. M. Kimani ◽

P. M. Kimani ◽

M. F. Olubayo ◽

J. W. Muthomi ◽

...

Keyword(s):

Grain Yield ◽

Combining Ability ◽

Gene Action ◽

Genetic Enhancement ◽

F1 Hybrids ◽

Japonica Rice ◽

Yield Traits ◽

Combining Ability Analysis ◽

Days To Maturity ◽

Check Variety

Understanding genetic variability and mode of gene action for agronomic and yield related traits is important in formulation of effective rice breeding program for genetic enhancement of grain yield. Combining ability analysis and heterosis was conducted to identify yield associated traits from nine male indicas and three female japonicas, together with their 27 F1 hybrids. Four parental lines, including Basmati 370, Basmati 217, K2-54 and Komboka showed good general combining ability in days to 50% flowering, days to maturity, number of tillers plant-1, number of spikelet’s panicle-1, number of panicles plant-1, number of filled grains panicle-1, and grain yield. While the combine K2-9 × Komboka, K2-9 × Basmati 370, K2-54 × Dourado Precoce and K2-54 × Basmati 217 showed specific good for grain yield. The hybrids K2-9 × Basmati 370, K2-8 × Basmati 217, K2-54 × Basmati 217 and K2-9 × Komboka showed 20% excess in standard check variety, suggesting that they could be good breeding donors.

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Combining Ability and Heterosis Studies for Yield and Yield Contributing Characters in Groundnut (Arachis hypogaea L.)

Current Journal of Applied Science and Technology ◽

10.9734/cjast/2020/v39i4831287 ◽

2020 ◽

pp. 566-573

Author(s):

P. Gonya Nayak ◽

M. Venkataiah ◽

P. Revathi

Keyword(s):

Arachis Hypogaea ◽

Combining Ability ◽

Kernel Weight ◽

Basic Material ◽

Yield Traits ◽

Pod Yield ◽

Arachis Hypogaea L ◽

Days To Maturity ◽

Per Se

In groundnut during Rabi 2015-16 Combining ability and heterosis was studied among 9 crosses involving three diverse lines viz., IVK 2015-21, IVK 2014-21and ICGV 00348 and 3 testers viz., Kadiri 7, Kadiri 6 and JCG 2141.On the basis of per se performance and General Combing Ability (GCA) effects together, the parents IVK-2014-21 and Kadiri-7 were identified as better combiners for various yield and its attributing characters. These parental materials could be better utilized as valuable basic material in developing high yielding groundnut varieties. Among those, based on per se performance, the corresponding GCA status of parents and SCA effects for most of the yield traits viz., days to 50% flowering, days to maturity, 100 kernel weight and pod yield per plant only one cross viz.,IVK14-21 x K7 was considered as better one.

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