GENOTYPE × ENVIRONMENT INTERACTIONS FROM YIELD TESTS AND THEIR APPLICATION TO SORGHUM BREEDING PROGRAMS

1966 ◽  
Vol 8 (2) ◽  
pp. 306-311 ◽  
Author(s):  
George H. L. Liang ◽  
T. L. Walter
Keyword(s):  
Breeding Programs ◽  
Sorghum Breeding

Long-Term Selection in Hybrid Sorghum Breeding Programs

Crop Science ◽  
2019 ◽  
Vol 59 (1) ◽  
pp. 150-164 ◽  
Author(s):  
Brian K. Pfeiffer ◽  
Dennis Pietsch ◽  
Ronnie W. Schnell ◽  
William L. Rooney
Keyword(s):  
Breeding Programs ◽  
Term Selection ◽  
Sorghum Breeding

scholarly journals Phenotypic stability and adaptability of sweet sorghum genotypes evaluated in different Brazilian regions

2021 ◽  
Vol 8 ◽  
pp. 1-16
Author(s):  
Ruane Alice Silva ◽  
Michele Jorge Silva ◽  
Pedro César Oliveira Ribeiro ◽  
Nádia Nardely Lacerda Durães Parrella ◽  
Robert Eugene Schaffert ◽  
...  
Keyword(s):  
Sweet Sorghum ◽  
Block Design ◽  
Stability Study ◽  
Soluble Solids ◽  
Superior Performance ◽  
Phenotypic Stability ◽  
Breeding Programs ◽  
Sorghum Breeding ◽  
Sorghum Genotypes ◽  
Solids Content

Sweet sorghum is a special purpose sorghum with a sugar-rich stalk, almost like sugarcane. The objective of this work was to evaluate the phenotypic stability and adaptability of sweet sorghum genotypes, in different Brazilian regions, for the production of bioethanol. Twenty-five sweet sorghum genotypes were evaluated in 10 environments distributed in the Southeast, Midwest, Northeast, and Southern regions of Brazil. The experimental design was a randomized complete block design with three repetitions. The following agroindustrial traits were evaluated: fresh biomass yield (FBY), total soluble solids content (TSS) and tons of Brix per hectare (TBH). The adaptability and stability analyzes were performed with the methods GGEbiplot and Annicchiarico methodologies. The Annicchiarico and GGEbiplot adaptability and stability study methods presented satisfactory and consistent results and can be used separately or together in sweet sorghum breeding programs, and B005 and B008 sweet sorghum genotypes presented superior performance, with similar classification in both methods studied.

Combining abilities and elite germplasm enhancement across US public sorghum breeding programs

Crop Science ◽  
2021 ◽  
Author(s):  
Jales Fonseca ◽  
Ramasamy Perumal ◽  
Patricia E. Klein ◽  
Robert R. Klein ◽  
William L. Rooney
Keyword(s):  
Germplasm Enhancement ◽  
Breeding Programs ◽  
Combining Abilities ◽  
Sorghum Breeding ◽  
Elite Germplasm

scholarly journals Mega-Environment Analysis To Assess Adaptability, Stability, And Genomic Predictions In Grain Sorghum Hybrids

2021 ◽  
Author(s):  
Jales Mendes Oliveira Fonseca ◽  
Ramasamy Perumal ◽  
Patricia E. Klein ◽  
Robert R. Klein ◽  
William L. Rooney
Keyword(s):  
Genomic Prediction ◽  
Genotype By Environment Interaction ◽  
Grain Sorghum ◽  
Environment Interaction ◽  
Breeding Programs ◽  
Environment Analysis ◽  
Factorial Mating ◽  
Sorghum Breeding ◽  
Sorghum Production ◽  
Genomic Predictions

Abstract Multi-environment trials (MET) are fundamental for assessing genotype-by-environment interaction (GxE) effects, adaptability and stability of genotypes and provide valuable information about target regions. As such, a MET involving grain sorghum hybrid combinations derived from elite inbred lines adapted to diverse sorghum production regions was developed to assess agronomic performance, stability, and genomic-enabled prediction accuracies within mega-environments (ME). Ten females and ten males from the Texas A&M and Kansas State sorghum breeding programs were crossed following a factorial mating scheme to generate 100 hybrids. Grain yield, plant height, and days to anthesis were assessed in a MET consisting of ten environments across Texas and Kansas over two years. Genotype plus Genotype-by-block-of-environment biplot (GGB) assessed ME, while the "mean-vs-stability" view of the biplot and the Bayesian Finlay-Wilkinson regression evaluated hybrid adaptability and stability. A genomic prediction model including the GxE effect was applied within ME to assess prediction accuracy. Results suggest that grain sorghum hybrid combinations involving lines adapted to different target regions can produce superior hybrids. GGB confirmed distinct regions of sorghum adaption in the U.S. Further, genomic predictions within ME reported inconsistent results, suggesting that additional effects rather than the correlations between environments are influencing genomic prediction of grain sorghum hybrids.

ESTIMASI NILAI HERITABILITAS BOBOT IKAN MAS VARIETAS PUNTEN DALAM PROGRAM SELEKSI INDIVIDU

2016 ◽  
Vol 11 (3) ◽  
pp. 217
Author(s):  
Estu Nugroho ◽  
Budi Setyono ◽  
Mochammad Su’eb ◽  
Tri Heru Prihadi
Keyword(s):  
Body Weight ◽  
Selection Response ◽  
Base Population ◽  
Breeding Programs ◽  
Male And Female ◽  
Body Weight Trait ◽  
Population Selection ◽  
Selection For ◽  
Weight Trait ◽  
Selection Of

Program pemuliaan ikan mas varietas Punten dilakukan dengan seleksi individu terhadap karakter bobot ikan. Pembentukan populasi dasar untuk kegiatan seleksi dilakukan dengan memijahkan secara massal induk ikan mas yang terdiri atas 20 induk betina dan 21 induk jantan yang dikoleksi dari daerah Punten, Kepanjen (delapan betina dan enam jantan), Kediri (tujuh betina dan 12 jantan), Sragen (27 betina dan 10 jantan), dan Blitar (15 betina dan 11 jantan). Larva umur 10 hari dipelihara selama empat bulan. Selanjutnya dilakukan penjarangan sebesar 50% dan benih dipelihara selama 14 bulan untuk dilakukan seleksi dengan panduan hasil sampling 250 ekor individu setiap populasi. Seleksi terhadap calon induk dilakukan saat umur 18 bulan pada populasi jantan dan betina secara terpisah dengan memilih berdasarkan 10% bobot ikan yang terbaik. Calon induk yang terseleksi kemudian dipelihara hingga matang gonad, kemudian dipilih sebanyak 150 pasang dan dipijahkan secara massal. Didapatkan respons positif dari hasil seleksi berdasarkan bobot ikan, yaitu 49,89 g atau 3,66% (populasi ikan jantan) dan 168,47 g atau 11,43% (populasi ikan betina). Nilai heritabilitas untuk bobot ikan adalah 0,238 (jantan) dan 0,505 (betina).Punten carp breeding programs were carried out by individual selection for body weight trait. The base population for selection activities were conducted by mass breeding of parent consisted of 20 female and 21 male collected from area Punten, eight female and six male (Kepanjen), seven female and 12 male (Kediri), 27 female and 10 male (Sragen), 15 female and 11 male (Blitar). Larvae 10 days old reared for four moths. Then after spacing out 50% of total harvest, the offspring reared for 14 months for selection activity based on the sampling of 250 individual each population. Selection of broodstock candidates performed since 18 months age on male and female populations separately by selecting based on 10% of fish with best body weight. Candidates selected broodstocks were then maintained until mature. In oder to produce the next generation 150 pairs were sets and held for mass spawning. The results revealed that selection response were positive, 49.89 g (3.66%) for male and 168.47 (11.43%) for female. Heritability for body weight is 0.238 (male) and 0.505 (female).

SCREENING OF WHEAT LR-GENES FOR RESISTANCE TO PUCCINIA TRITICINA IN THE NORTH CAUCASUS REGION CONDITIONS

1970 ◽  
pp. 54-56
Author(s):  
G. V. Volkova ◽  
O. A. Kudinova ◽  
O. F. Vaganova
Keyword(s):  
Winter Wheat ◽  
Leaf Rust ◽  
Puccinia Triticina ◽  
North Caucasus ◽  
Breeding Programs ◽  
Lr Genes ◽  
Caucasus Region ◽  
Highly Efficient ◽  
The North ◽  
Wheat Rust

Currently, more than 70 wheat rust resistance genes are known, but few of them are effective. The purpose of this work is to screen lines of Lr gene carriers for resistance to leaf rust under conditions of the North Caucasus region. Investigations were carried out in 2016-2018 at the infectious site of VNIIBZR. Research material was 49 near isogenic lines of winter wheat cultivar Thatcher. Infectious material was the combined populations of P. triticina, obtained as a result of route surveys of industrial and breeding crops of winter wheat in the areas of the Krasnodar, Stavropol Territories and the Rostov Region, conducted in 2016-2018. According to the assessment, the genes are ranked as follows: - highly efficient genes (plants with no signs of damage): Lr9, Lr42, Lr43 + 24 and Lr50; effective (1R-5R) Lr genes: 19, 24, 29, 36, 37, 38, 45, 47; moderately effective (10MR-20MR) Lr genes: 17, 18, 21, 22a, 28, 32, 41, 52. The remaining Lr-lines were susceptible to P. triticina (25 MR - 90S) to varying degrees. Highly efficient and effective genes Lr9, Lr19, Lr24, Lr29, Lr38, Lr42, Lr43 + 24, Lr47 and Lr50 showed resistance in the seedling phase and can be recommended for inclusion in breeding programs to protect wheat from leaf rust in different phases of plant ontogenesis in the North Caucasus region.

Matoa (Pometia Pinata Foster): Local Fruit Papua and Strategy Development

2010 ◽  
Vol 7 (1) ◽  
Author(s):  
Julius D. Nugroho
Keyword(s):  
Genetic Resources ◽  
Fruit Tree ◽  
Breeding Program ◽  
Strategy Development ◽  
Local Market ◽  
Font Size ◽  
Breeding Programs ◽  
Irian Jaya ◽  
Forest Exploitation ◽  
Program Strategy

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scholarly journals Evaluation of pear (Pyrus communis L.) hybrid combinations for the transmission of fire blight resistance and fruit characteristics

2018 ◽  
Vol 54 (No. 2) ◽  
pp. 78-85 ◽  
Author(s):  
Y. Evrenosoğlu ◽  
K. Mertoğlu
Keyword(s):  
Fire Blight ◽  
Animal Health ◽  
Blight Resistance ◽  
Fruit Characteristics ◽  
Breeding Programs ◽  
Pyrus Communis L ◽  
Management Method ◽  
Resistant Rootstock ◽  
Santa Maria ◽  
Harmful Effects

Fire blight is one of the most destructive diseases of pome fruits, especially pears. In current conditions when the demand for organic products is increasing, improvement of resistant rootstock and varieties is becoming important due to the lack of an effective disease management method against fire blight caused by Erwinia amy-lovora as well as the harmful effects of chemicals on environment, human and animal health. The findings of the researchers as to which variety performs well in terms of the transmission of fire blight resistance are quite important for new breeding programs. In the study, three varieties with high commercial value (Magness, Santa Maria and Williams) were identified as the maternal parents and 21 hybridization combinations were made with seven varieties (Akça, Ankara, Conference, Güz, Kaiser Alexandre, Kieffer and Taş) as pollinators. The Magness maternal parent was found superior when compared with the other maternal parents for the variety susceptibility level to fire blight. Apart from the differences in the susceptibility level of 21 different combinations of hybrids to fire blight, the commercially superior ten hybrids (I-15-24, II-13-1, II-13-19, II-13-34, II-13-73, II-27-21, II-27-55, II -32-44, III-22-638, III-27-590) have been determined via the weighted ranking method from the parameters of disease resistance and different fruit characteristics measuring the commercial preference of the fruits such as fruit quality, attractiveness, size, firmness and rustiness

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