Varietal cross diallel analysis for seed yield and its components in fennel ( Foeniculum vulgare mill)

A half diallel of nine genetically diverse varieties was made and the resulting 36 F 1 populations were evaluated along with the parents. The analysis of variance indicated that heterosis was significant for all the characters, except test weight. The heterosis components were also significant for most of the traits studied. The specific heterosis component accounted for more than 80% of the overall heterosis, indicating a complex type of inheritance for seed yield and its component traits. The crosses JF 29 × Local, RF 125 × JF 29 and UF (M)-1 × RF 101 exhibited significant positive heterobeltiosis for seed yield per plant. The parents RF125 and JF 29 merit attention as parents in the development of hybrids. The use of recurrent selection and the development of composites are suggested as ways to improve yielding ability in fennel.

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Diallel analysis for seed yield and its component traits in Cuphea procumbens

Genetika ◽

10.2298/gensr0601009s ◽

2006 ◽

Vol 38 (1) ◽

pp. 9-22 ◽

Cited By ~ 1

Author(s):

S.P. Singh ◽

Meenakshi Singh ◽

H.K. Yadav

Keyword(s):

Seed Yield ◽

Quantitative Traits ◽

Gene Action ◽

Regression Line ◽

Diallel Analysis ◽

Breeding Value ◽

Major Influence ◽

Plant Seeds ◽

Component Traits ◽

Half Diallel

The Cuphea procumbens Orteg. is an important annual plant source of medium chain fatty acids. The present study was conducted to estimate different gene systems involved in the inheritance of important quantitative traits viz. plant height, branches/plant, fruits/plant, seeds/fruit and seed yield/plant in F1 and F2 generations following 6 parents half diallel. Diallel assumptions were fulfilled for all the characters. Wr - Vr graph and component analysis revealed the major influence of over dominance for all the traits except branches/plant in F1. The arrays scattered all along the regression line below limiting parabola in two groups, Dominance and recessive and was confirmed by standardized deviation graph. The ranking on the basis of breeding value (Yr) of the parents and per se performance was closely associated (r=0.83**). On the basis of ranking, parents 'NBC-01', 'NBC-25' and 'NBC-30' were found most promising and possessed more dominant alleles for most of the characters. Considering the gene action involved, the breeding plan was discussed.

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Diallel Analysis for Estimation of Combining Ability for Seed Yield and It’s Component Traits in Linseed (Linum usitatissimum L.)

Current Journal of Applied Science and Technology ◽

10.9734/cjast/2019/v33i330072 ◽

2019 ◽

pp. 1-9

Author(s):

Divya Mahto ◽

Anshuman Vashistha ◽

Suparna Sinha ◽

P. K. Singh ◽

Shailesh Marker

Keyword(s):

Plant Breeding ◽

Analysis Of Variance ◽

Seed Yield ◽

Linum Usitatissimum ◽

Combining Ability ◽

Diallel Analysis ◽

Linum Usitatissimum L ◽

Component Traits ◽

Per Se ◽

Field Experimentation

The present investigation consisted of eight parents of linseed which were crossed as per diallel analysis [1] (Model 1 and Method 2) in Rabi 2010-11 to generate 28 crosses (excluding reciprocals). These 28 crosses were evaluated along with eight parents and three checks viz: T-397, Neelum and Allahabad Local in RBD having three replications during 2011-12 at the Field Experimentation Centre of Department of Genetics and Plant Breeding, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad. The data were recorded on ten characters to study the combining ability. The significant mean sum of squares for all the ten characters indicated the presence of a substantial amount of variability. Per se performance for seed yield and its components depicted that cross M-42 (169) × POLF-19 (1765) was found to be best. Analysis of variance for combining ability showed significant differences for all the characters. The parents FRW-6 (973) and POLF-19 (1765) were good general combiner for seedyield and most of the traits. Highest positive SCA effect for seed yield per plant was depicted by the cross PbD2-42 (2789) × GS-129 (1018).

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Biplot Approach for Identification of Heterotic Crosses in Linseed (Linum usitatissimum L.)

Journal of Botany ◽

10.1155/2011/353102 ◽

2011 ◽

Vol 2011 ◽

pp. 1-7 ◽

Cited By ~ 1

Author(s):

Anu Rastogi ◽

Brij Kishore Mishra ◽

Mrinalini Srivastava ◽

Ameena Siddiqui ◽

Sudhir Shukla

Keyword(s):

Seed Yield ◽

Linum Usitatissimum ◽

Test Weight ◽

Limited Resources ◽

Oilseed Crops ◽

Biplot Analysis ◽

Linum Usitatissimum L ◽

Plant Test ◽

Commercial Crop ◽

Half Diallel

In India, among nonedible oilseed crops, linseed is a commercial crop having tremendous economic and industrial importance. The seed production is low due to limited resources, so the development of high-yielding lines with desirable characters is urgently needed. In the present study seven parents' half diallel data was subjected to biplot analysis to identify the heterotic crosses, genetically similar parents, and to study their interrelationship. Parent Sln-Ys with A-79 and A-03 with A-79 for capsules per plant and seed yield, parent Mukta with Sln-Ys and Mukta with BAU-45 for seeds per capsule, and parents Mukta, A-103, A-79 and A-94 for test weight had lowest correlation. Parent B [Mukta] and F [A-79] were good general combiner for all the traits. The crosses F [A-79] × A [Sln-Ys] and D [A-03] × F [A-79] for capsules per plant, test weight and seed yield per plant, cross D [A-03] × A [Sln-Ys] for capsules per plant and test weight and cross D [A-03] × F [A-79] for test weight and seed yield per plant were heterotic. None of the crosses were heterotic for seeds per capsule.

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COMBINING ABILITY ANALYSIS FOR FRUIT YIELD AND ITS COMPONENT TRAITS IN BHENDI (ABELMOSCHUS ESCULENTUS (L.) MOENCH)

PLANT ARCHIVES ◽

10.51470/plantarchives.2021.v21.no1.093 ◽

2021 ◽

Vol 21 (No 1) ◽

Author(s):

C. Praveen Sampath Kumar ◽

T. Tamil Mathi ◽

J.L. Josh ◽

Darling B. Suji ◽

Ajish Muraleedharan

Keyword(s):

Plant Breeding ◽

Combining Ability ◽

Diallel Analysis ◽

Fruit Weight ◽

Fruit Yield ◽

Flowering Plant ◽

Fruit Length ◽

Component Traits ◽

Additive Gene ◽

Half Diallel

The present investigation was undertaken to evaluate six parents and fifteen hybrids through half-diallel mating system to study general and specific combining ability effects and genetic analysis for various yield and yield attributing characters. Six parents viz., Arka Anamika (P1), Thanvi 66 (P2), Villupuram Local (P3), Dhaanya (P4), Ankur 41 (P5) and Varsha Uphar (P6) were crossed in half-diallel fashion at the Plant Breeding Farm, Department of Genetics and Plant Breeding, Faculty of Agriculture, Annamalai University. Resulting fifteen hybrids along with their parents were evaluated for their combining ability. Observations were recorded on single plant basis. The observations were made on characters namely, days to first flowering, plant height at maturity, number of primary branches per plant, number of nodes per plant, number of fruits per plant, number of seeds per fruit, fruit length, fruit girth, single fruit weight and fruit yield per plant. In half-diallel analysis, the variance of the genotype for all the characters were highly significant indicating high genetic variability among the parents studied. The variance due to GCA was higher than the corresponding variance due to SCA for most of the characters except number of fruits per plant, fruit length and fruit girth. The combining ability variance revealed the preponderance of additive gene action for all the characters studied. The parents P1 and P6 were found as good general combiner. Based on the sca effects, the hybrid P1 x P6 considered as the best followed by crosses P2 x P4 and P3 x P4 considered as the better hybrids.

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

Acta Agronomica Hungarica ◽

10.1556/aagr.59.2011.1.9 ◽

2011 ◽

Vol 59 (1) ◽

pp. 87-102 ◽

Cited By ~ 3

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.

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Study onGenetic Variability, Heritability and Genetic Advance for Seed Yield and Component Traits in Rice

Journal of AgriSearch ◽

10.21921/jas.v4i03.9017 ◽

2017 ◽

Vol 4 (03) ◽

Author(s):

PUNIT KUMAR ◽

VICHITRA KUMAR ARYA ◽

PRADEEP KUMAR ◽

LOKENDRA KUMAR ◽

JOGENDRA SINGH

Keyword(s):

Grain Yield ◽

Plant Height ◽

Seed Yield ◽

Flag Leaf ◽

Grain Weight ◽

Major Influence ◽

Genetic Advance ◽

Component Traits ◽

Biological Yield ◽

1000 Grain Weight

A study on genetic variability, heritability and genetic advance for seed yield and component traits was made in 40 genotypes of riceduring kharif 2011-2012 at SHIATS, Allahabad. The analysis of variance showed highly significant differences among the treatments for all the 13 traits under study.The genotypes namely CN 1446-5-8-17-1-MLD4 and CR 2706 recorded highest mean performance for panicles per hill and grain yield. The highest genotypic and phenotypic variances (VG and VP) were recorded for spikelets per panicle (3595.78 and 3642.41) followed by biological yield (355.72 and 360.62) and plant height (231.48 and 234.35).High heritability (broad sense) coupled with high genetic advance was observed for plant height, flag leaf length, panicles per hill, tillers per hill, days to maturity, spikelet’s per panicle, biological yield, harvest index, 1000 grain weight and grain yield, indicating that selection will be effective based on these traits because they were under the influence of additive and additive x additive type of gene action. Highest coefficient of variation (PCV and GCV) was recorded for tillers per hill (18.42% and 17.23%), panicle per hill (19.76 % and 18.68%), spikelet’s per panicle (34.30 and34.07 %), biological yield (28.31 % and 28.12 %), 1000 grain weight (15.57 % and 15 31 %) and grain yield (46.66% and 23.54 %), indicating that these traits are under the major influence of genetic control, therefore the above mentioned traits contributed maximum to higher grain yield compared to other traits, indicating grain yield improvement through the associated traits.

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Combining ability and heterosis on yield and its component traits in maize (Zea mays L.)

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v41i3.29727 ◽

2016 ◽

Vol 41 (3) ◽

pp. 565-577 ◽

Cited By ~ 1

Author(s):

MZA Talukder ◽

ANM S Karim ◽

S Ahmed ◽

M Amiruzzaman

Keyword(s):

Combining Ability ◽

Diallel Cross ◽

Kernel Weight ◽

Early Maturity ◽

Ecological Zones ◽

Component Traits ◽

Additive Gene ◽

Positive Heterosis ◽

Half Diallel ◽

Kernel Yield

Combining ability and heterosis were studied in a 7×7 half diallel cross in maize for grain yield and yield contributing characters. Significant general and specific combining ability variances were observed for all the characters studied. The significant estimates of GCA and SCA variances suggested the importance of both additive and non-additive gene actions for the expression studied traits. In these studies, variances due to SCA were higher than GCA for all charactesr, which revealed the predominance of non additive gene action (dominance and epistasis) for controlling these traits. Parents P1 and P4 were excellent general combiner for days to tasseling and silking while P1 and P5 for early maturity. P4 for short height and, P4 and P7 for higher thousand kernel weight. The parents P4 and P6 having good combining abilities for yield. Heterosis estimation was carried out using two commercial varieties NK40 and 900MG. When standard commercial check NK40 was used, the percent heterosis for kernel yield varied from -51.39 to 12.53%. Among the 21 F1s, 3crosses exhibited significant positive heterosis for kernel yield. The highest heterosis was exhibited by the cross P4×P6 (12.43%), P6×P7 (10.89%) and P2×P3 (9.87%) respectively. Compared with 900MG as check, the percent heterosis for kernel yield varied from -53.73 to 7.01%. Among the 21 F1s, none of the crosses exhibited significant positive heterosis for kernel yield. The highest heterosis were exhibited by the crosses P4×P6 (7.01%), P6 x P7 (5.55%) and P2×P3 (4.57%). The crosses showed significant positive SCA values could be used for variety development after verifying them across the agro-ecological zones of Bangladesh.Bangladesh J. Agril. Res. 41(3): 565-577, September 2016

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GENETIC CONTROL OF VARIATION IN A SELECTED POPULATION OF RUSSIAN WILD RYEGRASS (ELYMUS JUNCEUS)

Canadian Journal of Plant Science ◽

10.4141/cjps76-043 ◽

1976 ◽

Vol 56 (2) ◽

pp. 275-280

Author(s):

T. LAWRENCE

Keyword(s):

Genetic Control ◽

Seed Yield ◽

Seed Weight ◽

Dry Matter ◽

Recurrent Selection ◽

Direct Selection ◽

Adult Plant ◽

Dry Matter Yield ◽

Seedling Characters ◽

Additive Control

Progenies from a five-genotype diallel cross in Russian wild ryegrass, Elymus junceus Fisch., were studied to assess the pattern of genetic control for F1 seed weight and a number of seedling and adult plant characters. Variation in F1 seed weight was largely determined by the maternal parent, but some control by the pollen parent was apparent. Of the seedling characters, days to emerge, rate of leaf appearance, rate of tiller appearance, and seedling dry matter yield, only days to emerge showed additive variance which is amenable to direct selection. The other three characters could be most easily exploited by a recurrent selection program. The adult plant characters, date of inflorescence appearance, P content of the forage, and organic matter digestibility indicated strong additive control which is amenable to direct selection. Dry matter yield and seed yield also showed strong additive control which was accompanied by specific combining ability and weak maternal effects suggesting good progress should be possible by direct selection methods but crossing the selections in a diallel fashion prior to formation of synthetics might be desirable. The seedling characters, rate of leaf and tiller appearance and seedling dry matter yield were interrelated and associated with adult plant yield, thus offering the possibility of screening seedlings for these characters in a recurrent selection program for improved forage or seed yield.

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Combining Ability and Heterosis for Grain Yield and its Component Traits in Rice(Oryza sativa L.)

Notulae Scientia Biologicae ◽

10.15835/nsb519006 ◽

2013 ◽

Vol 5 (1) ◽

pp. 90-97 ◽

Cited By ~ 3

Author(s):

Srikrishna LATHA ◽

Deepak SHARMA ◽

Gulzar S. SANGHERA

Keyword(s):

Oryza Sativa ◽

Grain Yield ◽

Analysis Of Variance ◽

Combining Ability ◽

Oryza Sativa L ◽

F1 Hybrids ◽

Component Traits ◽

Standard Heterosis ◽

High Degree ◽

Yield Trials

The nature and magnitude of heterosis and combining ability was studied in 18 F1 hybrids involving three CMS lines and six testers using line × tester analysis. The analysis of variance for combining ability of all the traits showed that variances due to treatments, parents, hybrids were highly significant. The line ‘CRMS 32A’ and testers viz. ‘Super rice-8’, ‘R 1099-2569-1-1’ and ‘Jitpiti’ were identified as good general combiners. The significant differences between lines x testers interaction indicates that SCA attributed heavily in the expression of these traits and demonstrates the importance of dominance or non additive variances for all the traits. The hybrid ‘CRMS 32A’/‘R 1099-2569-1-1’ and ‘APMS 6A’/‘Super rice-8’ were promising for grain yield. The magnitude of relative heterosis, heterobeltiosis and standard heterosis were also estimated for different characters. A high degree of relative heterosis was observed for grain yield (20.45- 82.37%) in the hybrids viz., ‘CRMS 32A’/‘Super rice-8’, ‘APMS 6A’/‘Super rice-8’, ‘APMS 6A’/‘Jitpiti’ and ‘CRMS 32A’/‘R 1099-2569-1-1’. While, a higher degree of: heterobeltiosis (13.60 -68.37%) was observed for grain yield in the hybrids viz., ‘CRMS 32A’/‘Super rice-8’, ‘CRMS 32A’/‘R 1099-2569-1-1’, ‘APMS 6A’/’Super rice-8’ and ‘APMS 6A’/’Jitpiti’. A high degree of standard heterosis was observed for grain yield in the hybrid ‘CRMS 32A’/‘R 1099-2569-1-1’. The hybrid ‘CRMS 32A’/ ‘R 1099-2569-1-1’ recorded a high degree of relative heterosis (62.01%), heterobeltiosis (57.35%) and standard heterosis (15.05 and 25.51% over check hybrids, ‘Mahamaya’ and ‘Indirasona’, respectively) that can be tested on yield trials for its further testing over locations.

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