scholarly journals Diallel analysis of the duration of vegetation period in tomato (Solanum lycopersicum L.) with increased lycopene content in the fruit

2021 ◽  
Vol 117 (2) ◽  
pp. 1
Author(s):  
Liudmila Andreevna RUDAS ◽  
Mariya Viktorivna TORBANYUK ◽  
Zinovy Deonizovich SYCH
Keyword(s):  
Solanum Lycopersicum ◽  
Combining Ability ◽  
Diallel Analysis ◽  
Genetic System ◽  
Vegetation Period ◽  
General Combining Ability ◽  
Additive Effects ◽  
Solanum Lycopersicum L ◽  
Lycopene Content ◽  
Dark Green

<p> Five parental forms of tomato (Solanum lycopersicum L.) and twenty hybrids F1, were studied which were obtained by the complete diallel scheme (5 x 5). For genetic analysis (by Hayman, 1954; Jinks,1954) was used line №477 (sp,u), variety Alya (sp) with reduced  duration of vegetation period and three collection samples with the high lycopene content in fruits: Dark Green (hp-2dg), МО 112 (hp), Т˗3627 (Bc). The effects of the general (GCA) and specific combining ability (SCA) of the duration of vegetation period were determined and established character of inheritance. According to the results of research, the duration of vegetation period is controlled by additive-dominant genetic system. Inheritance occurs by type of over dominance, and in dry and hot summers which led to the prolongation of the duration of vegetation period, there is a tendency to incomplete dominance, but it is apocryphal. In genetic control a major role play non-additive effects of genes. The best reliable effects of the general combining ability (GCA) had line №477 and variety Alya. They can be recommended for the creation of heterotic hybrids and varieties.</p>

scholarly journals Potential of parents and hybrids experimental of the yellow melon

2020 ◽  
Vol 50 (2) ◽  
Author(s):  
José Galdino Cavalcante Neto ◽  
Karmita Thainá Correia Ferreira ◽  
Fernando Antonio Souza de Aragão ◽  
Rafaela Priscila Antônio ◽  
Glauber Henrique de Sousa Nunes
Keyword(s):  
Combining Ability ◽  
Cucumis Melo ◽  
Diallel Analysis ◽  
Fruit Weight ◽  
General Combining Ability ◽  
Economic Importance ◽  
Additive Effects ◽  
Agronomic Potential ◽  
Cucumis Melo L ◽  
Partial Diallel

ABSTRACT: Melon or muskmelon (Cucumis melo L.) is of considerable economic importance in Brazil. Nearly all the cultivars currently grown are hybrids. Heterosis has been used to advantage in the melon plant, and the use of uniform hybrids is one of the reasons for successful cultivation. The aim of the present study was to evaluate the agronomic potential of yellow melon lines and hybrids. An experiment was conducted in randomized blocks with three replications to evaluate 24 hybrids generated by crosses among three elite lines used as female parents (AF-01, AF-02, and AF-03) and eight lines used as male parents (LAM-01, LAM-02, LAM-03, LAM-04, LAM-05, LAM-06, LAM-07, and LAM-08). Yield and fruit quality traits were evaluated. Partial diallel analysis was carried out to estimate general combining ability and specific combining ability. Additive and non-additive effects were observed for the yield, mean fruit weight, and pulp thickness traits. The lines AF-02, LAM-02, and LAM-03 are the most promising as parents as they more frequently have favorable alleles. The most prominent hybrids in diallel analysis were AF-02 x LAM-02, AF-02 x LAM-03, AF-02 x LAM-04, and AF-03 x LAM-06.

DIALLEL ANALYSIS OF CROSSES BETWEEN FLUE-CURED AND BURLEY TOBACCO CULTIVARS

1970 ◽  
Vol 12 (3) ◽  
pp. 484-489 ◽  
Author(s):  
Bronius Povilaitis
Keyword(s):  
Combining Ability ◽  
Diallel Analysis ◽  
Diallel Cross ◽  
General Combining Ability ◽  
The Other ◽  
Additive Effects ◽  
Burley Tobacco ◽  
Total Variability ◽  
Number Of Leaves ◽  
Cross Experiment

The eight tobacco cultivars Delcrest, Hicks Broadleaf, Yellow Gold and Jamaica Wrapper of the flue-cured type and Burley 1, Burley 21, Virginia B29 and Kentucky 12 of the burley type and their crosses and reciprocals were grown in an 8 × 8 diallel-cross experiment. Diallel analyses were completed according to procedures described by Hayman, Griffing and Robinson.The mean squares for general combining ability and for Hayman's a made up a considerably higher proportion of the total variability than the other subdivisions. The variances for special combining ability were in all instances smaller than those for general combining ability, although there were differences in size and in levels of significance between Griffing's and Robinson's methods. The statistic due to additive effects of genes (Hayman's D) was significant for days to flower, height, and number of leaves, and the statistic due to dominance effects significant for days to flower and height. The greatest effect in decreasing the number of days to flower was exhibited by the cultivar Delcrest, and the greatest effect in increasing the number of days to flower was by Yellow Gold and Kentucky 12. Kentucky 12 showed the greatest effect in increasing height and number of leaves.

scholarly journals ОЦІНКА КОМБІНАЦІЙНОЇ ЗДАТНОСТІ СОРТІВ ЯЧМЕНЮЯРОГО ЗА КІЛЬКІСНИМИ ОЗНАКАМИ В УМОВАХ ПІВНІЧНОГО СТЕПУ УКРАЇНИ

2014 ◽  
pp. 23-25
Author(s):  
В. В. Ващенко ◽  
О. О. Шевченко
Keyword(s):  
Plant Height ◽  
Combining Ability ◽  
Diallel Analysis ◽  
General Combining Ability ◽  
Specific Combining Ability ◽  
Grain Weight ◽  
1000 Grain Weight

У системі діалельних схрещувань п’яти сортів яч-меню ярого (Донецький 12, Донецький 14, Донецький 15,Прерія, Галактик) установлено особливості генети-чного контролю мінливості ознак: висота рослин,кількість зерен у колосі, маса 1000 зерен у відповід-ності зі співвідношенням варіанс специфічної комбі-наційної здатності (СКЗ) і загальної комбінаційноїздатності (ЗКЗ). Виділено й запропоновано сорти якджерела ознак висота рослин Галактик і Донецький14; кількість зерен у колосі – сорт Прерія; маса 1000зерен – сорт Донецький 15. Виділені зразки з високимі стабільним рівнем комбінаційної здатності запро-поновано використовувати в селекційній роботі. A total of diallel analysis varieties of springbarley Donetskiy 12, Donetskiy 14, Donetskiy 15,Prairie, Galactic set features genetic controlvariability characteristics: plant height, number ofgrains per ear, 1000 grain weight in accordance withthe ratio of variance of specific combining ability(SSI) and general combining ability (ZKZ).Identified and proposed as a source of variety traitsplant height and Donetsk 14, Galactic, the numberof grains per ear sort Prairie, weight of 1000 grainsDonetskiy 15. Samples of high and stable levels ofcombining ability is proposed to use in breedingwork have beeen celected.

scholarly journals Combining Ability Analysis for Yield and its Components in Tomato (Solanum lycopersicum L.)

2019 ◽  
Vol 3 (7) ◽  
pp. 185-191
Author(s):  
TA Vekariya ◽  
GU Kulkarni ◽  
DM Vekaria ◽  
AP Dedaniya ◽  
JT Memon
Keyword(s):  
Solanum Lycopersicum ◽  
Combining Ability ◽  
Solanum Lycopersicum L ◽  
Combining Ability Analysis

scholarly journals Combining Ability Analysis for Yield and Its Attributing Traits over Environments in Tomato (Solanum lycopersicum L.)

2012 ◽  
Vol 4 (11) ◽  
Author(s):  
Asima Amin ◽  
Kouser Kouser Parveen Wani ◽  
Hidayatullah Mir ◽  
S. H. Khan ◽  
Faheema Mushtaq ◽  
...  
Keyword(s):  
Solanum Lycopersicum ◽  
Combining Ability ◽  
Solanum Lycopersicum L ◽  
Combining Ability Analysis

Combining ability for aluminium tolerance in triticale

1999 ◽  
Vol 133 (4) ◽  
pp. 371-377 ◽  
Author(s):  
X. G. ZHANG ◽  
R. S. JESSOP ◽  
F. ELLISON
Keyword(s):  
Genetic Variation ◽  
Stress Tolerance ◽  
Combining Ability ◽  
Additive Genetic Variance ◽  
Diallel Analysis ◽  
Aluminium Tolerance ◽  
Additive Effects ◽  
Al Tolerance ◽  
Al Stress ◽  
Polygenic System

Root re-growth, following aluminium (Al) stress, has been used as an indicator of Al stress tolerance. Genetic variation in root re-growth characteristics among eight triticale genotypes was investigated by a diallel analysis. Highly significant variation due to both general combining ability (GCA) effects and specific combining ability (SCA) effects indicated that both additive effects and non-additive effects were important in explaining the genetic variation for Al tolerance. The high estimates of heritability and the predictability ratio for root re-growth revealed the preponderance of additive genetic variance in the inheritance of Al tolerance. Differences in patterns of GCA effects and SCA effects among the parents provided strong evidence that the genetic control of variation for Al tolerance as assessed by root re-growth was a complex polygenic system. Three Al-tolerant genotypes, Tahara, Abacus, and 19th ITSN 70–4, were found to be the best general combiners for larger root re-growth, and they could be used in hybridization programmes to improve Al stress tolerance by following a simple pedigree method of selective breeding.

scholarly journals Diallel Analysis of Chilli Pepper (Capsicum annuum L.) Genotypes for Morphological and Fruit Biochemical Traits

Plants ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
Aiswarya C. S. ◽  
Vijeth S ◽  
Sreelathakumary I ◽  
Prashant Kaushik
Keyword(s):  
Vitamin C ◽  
Combining Ability ◽  
Yield Components ◽  
Diallel Analysis ◽  
General Combining Ability ◽  
Biochemical Traits ◽  
Chilli Pepper ◽  
Gene Effects ◽  
Commercial Cultivation ◽  
Additive Gene

Chilli pepper is commercially cultivated as a spice and is also used for the extraction of a colouring agent. Here, we performed a diallel genetic study involving five chilli pepper varieties. Parents and their hybrid were evaluated for fifteen morphological and five biochemical traits over two crop seasons under open field conditions. Variation was recorded for all of the studied traits. Similarly, significant values for general combining ability (GCA) and specific combining ability (SCA) variance were obtained for all of the traits. The ratio of σ2 SCA/σ2 GCA indicates that non-additive gene effects were predominant for all the studied traits except for fruits plant−1. Based on SCA effects, cross combinations P2 × P5, and P4 × P5 were determined excellent for flesh thickness, yield components and vitamin C. These hybrids are recommended for multilocation testing to assess their suitability for commercial cultivation. Overall, this work presents useful information regarding the genetics of important morphological and biochemical traits in chilli pepper.

GENERAL, SPECIFIC, MATERNAL AND RECIPROCAL EFFECTS FOR EWE PRODUCTIVITY IN CROSSING FIVE BREEDS OF SHEEP

1983 ◽  
Vol 63 (3) ◽  
pp. 497-509 ◽  
Author(s):  
J. N. B. SHRESTHA ◽  
W. E. REMPEL ◽  
W. J. BOYLAN ◽  
K. P. MILLER
Keyword(s):  
Combining Ability ◽  
General Combining Ability ◽  
Specific Combining Ability ◽  
Reciprocal Effects ◽  
Additive Effects ◽  
Breeding Strategies ◽  
Agricultural Experiment Stations ◽  
Agricultural Experiment ◽  
Breed Crosses ◽  
The University

Five breeds of sheep (Minnesota 100, 102, 103 and 105, and Shropshire), and their two breed crosses, including reciprocals, were raised at the University of Minnesota's Agricultural Experiment Stations, Rosemount and Waseca. Included in this study were 421 purebred and 1037 crossbred ewes and their 367 purebred and 849 Suffolk-sired crossbred lambs born over a 5-yr period. Estimates of heterosis, pure breed, general, specific, maternal and reciprocal effects were obtained for fertility, prolificacy, livability, overall reproduction, and total and average lamb weights per ewe at birth and weaning (100 days). Significant differences were observed for prolificacy, livability, and total and average lamb weights per ewe at birth and weaning. General combining ability was important (P < 0.01) for prolificacy and average lamb weight per ewe at birth and weaning. Specific combining ability was significant for prolificacy, total lamb weight per ewe at birth, and average lamb weight per ewe at weaning. Maternal and reciprocal effects were not important (P > 0.05). Significant interactions of location with specific combining ability and maternal ability were observed for average lamb weight per ewe at weaning. Breeds ranked differently on purebred performance and general combining ability. Heterosis, pure breeds, and general and specific combining ability had important effects. Therefore, both additive and non-additive effects should be considered in developing breeding strategies to maximize productivity for commercial lamb production. Key words: Sheep, breed, ewe productivity, genetic effects

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