Hybrid breeding for biomass yield in winter triticale: I. Hybrid performance, trait correlations and heterosis

2016 ◽  
Vol 135 (5) ◽  
pp. 560-566 ◽  
Author(s):  
Dominik Losert ◽  
Hans Peter Maurer ◽  
Sigrid Weissmann ◽  
Tobias Wü rschum
Keyword(s):  
Biomass Yield ◽  
Hybrid Breeding ◽  
Hybrid Performance ◽  
Performance Trait ◽  
Winter Triticale ◽  
Trait Correlations

scholarly journals Hybrid breeding for biomass yield in winter triticale: II. Combining ability and hybrid prediction

2020 ◽  
Vol 139 (5) ◽  
pp. 906-915
Author(s):  
Johannes Trini ◽  
Hans Peter Maurer ◽  
Sigrid Weissmann ◽  
Tobias Würschum
Keyword(s):  
Combining Ability ◽  
Biomass Yield ◽  
Hybrid Breeding ◽  
Hybrid Prediction ◽  
Winter Triticale

Potential for simultaneous improvement of grain and biomass yield in Central European winter triticale germplasm

2011 ◽  
Vol 121 (1) ◽  
pp. 153-157 ◽  
Author(s):  
Manje Gowda ◽  
Volker Hahn ◽  
Jochen C. Reif ◽  
C. Friedrich H. Longin ◽  
Katharina Alheit ◽  
...  
Keyword(s):  
Biomass Yield ◽  
Central European ◽  
Winter Triticale

scholarly journals Use of F2 bulks in training sets for genomic prediction of combining ability and hybrid performance

2018 ◽  
Author(s):  
Frank Technow
Keyword(s):  
Genomic Prediction ◽  
Combining Ability ◽  
Hybrid Breeding ◽  
F1 Hybrids ◽  
Hybrid Performance ◽  
Crop Species ◽  
Heterotic Groups ◽  
Quantitative Genetic ◽  
Hand Pollination ◽  
Training Sets

ABSTRACTDeveloping training sets for genomic prediction in hybrid crops requires producing hybrid seed for a large number of entries. In autogamous crop species (e.g., wheat, rice, rapeseed, cotton) this requires elaborate hybridization systems to prevent self-pollination and presents a significant impediment to the implementation of hybrid breeding in general and genomic selection in particular. An alternative to F1 hybrids are bulks of F2 seed from selfed F1 plants (F1:2). Seed production for F1:2 bulks requires no hybridization system because the number of F1 plants needed for producing enough F1:2 seed for multi-environment testing can be generated by hand-pollination. This study evaluated the suitability of F1:2 bulks for use in training sets for genomic prediction of F1 level general combining ability and hybrid performance, under different degrees of divergence between heterotic groups and modes of gene action, using quantitative genetic theory and simulation of a genomic prediction experiment. The simulation, backed by theory, showed that F1:2 training sets are expected to have a lower prediction accuracy relative to F1 training sets, particularly when heterotic groups have strongly diverged. The accuracy penalty, however, was only modest and mostly because of a lower heritability, rather than because of a difference in F1 and F1:2 genetic values. It is concluded that resorting to F1:2 bulks is, in theory at least, a promising approach to remove the significant complication of a hybridization system from the breeding process.

scholarly journals Hybrid Breeding for MLN Resistance: Heterosis, Combining Ability, and Hybrid Prediction

Plants ◽  
2020 ◽  
Vol 9 (4) ◽  
pp. 468
Author(s):  
Christine Nyaga ◽  
Manje Gowda ◽  
Yoseph Beyene ◽  
Wilson T. Murithi ◽  
Juan Burgueno ◽  
...  
Keyword(s):  
Disease Severity ◽  
Combining Ability ◽  
Genetic Parameters ◽  
Artificial Inoculation ◽  
Hybrid Breeding ◽  
Hybrid Performance ◽  
Hybrid Prediction ◽  
Quantitative Genetic ◽  
Per Se ◽  
Quantitative Genetic Parameters

Prior knowledge on heterosis and quantitative genetic parameters on maize lethal necrosis (MLN) can help the breeders to develop numerous resistant or tolerant hybrids with optimum resources. Our objectives were to (1) estimate the quantitative genetic parameters for MLN disease severity, (2) investigate the efficiency of the prediction of hybrid performance based on parental per se and general combining ability (GCA) effects, and (3) examine the potential of hybrid prediction for MLN resistance or tolerance based on markers. Fifty elite maize inbred lines were selected based on their response to MLN under artificial inoculation. Crosses were made in a half diallel mating design to produce 307 F1 hybrids. All hybrids were evaluated in MLN quarantine facility in Naivasha, Kenya for two seasons under artificial inoculation. All 50 inbreds were genotyped with genotyping-by-sequencing (GBS) SNPs. The phenotypic variation was significant for all traits and the heritability was moderate to high. We observed that hybrids were superior to the mean performance of the parents for disease severity (−14.57%) and area under disease progress curve (AUDPC) (14.9%). Correlations were significant and moderate between line per se and GCA; and mean of parental value with hybrid performance for both disease severity and AUDPC value. Very low and negative correlation was observed between parental lines marker based genetic distance and heterosis. Nevertheless, the correlation of GCA effects was very high with hybrid performance which can suggests as a good predictor of MLN resistance. Genomic prediction of hybrid performance for MLN is high for both traits. We therefore conclude that there is potential for prediction of hybrid performance for MLN. Overall, the estimated quantitative genetic parameters suggest that through targeted approach, it is possible to develop outstanding lines and hybrids for MLN resistance.

Prospects for Hybrid Breeding in Winter Triticale: I. Heterosis and Combining Ability for Agronomic Traits in European Elite Germplasm

Crop Science ◽  
2005 ◽  
Vol 45 (4) ◽  
pp. 1476-1482 ◽  
Author(s):  
G. Oettler ◽  
S. H. Tams ◽  
H. F. Utz ◽  
E. Bauer ◽  
A. E. Melchinger
Keyword(s):  
Combining Ability ◽  
Agronomic Traits ◽  
Hybrid Breeding ◽  
Winter Triticale ◽  
Elite Germplasm

scholarly journals Identification and Fine-Mapping of Quantitative Trait Loci Controlling Plant Height in Central European Winter Triticale (×Triticosecale Wittmack)

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1592
Author(s):  
Johannes Trini ◽  
Hans Peter Maurer ◽  
Jan Eric Neuweiler ◽  
Tobias Würschum
Keyword(s):  
Plant Height ◽  
Fine Mapping ◽  
Fine Tuning ◽  
Hybrid Breeding ◽  
Hybrid Seed Production ◽  
Breeding Programs ◽  
Central European ◽  
Winter Triticale ◽  
Chromosome 5A ◽  
Triticosecale Wittmack

The quantitatively inherited trait plant height is routinely evaluated in triticale breeding programs as it substantially influences lodging and disease susceptibility, is a main contributor to biomass yield, and is required to improve hybrid seed production by fine-tuning plant height in the female and male parental pools in hybrid breeding programs. In this study, we evaluated a panel of 846 diverse Central European triticale genotypes to dissect the genetic architecture underlying plant height by genome-wide association mapping. This revealed three medium- to large-effect QTL on chromosomes 5A, 4B, and 5R. Genetic and physical fine-mapping of the putative QTL revealed that the QTL on chromosome 5R most likely corresponds to Ddw1 and that the QTL on chromosome 5A is likely to be Rht12. Furthermore, we observed a temporal trend in registered cultivars with a decreasing plant height during the past decades, accompanied by an increasing use of the height-reducing alleles at the identified QTL. In summary, our results shed new light on the genetic control of plant height in triticale and open new avenues for future improvement by breeding.

Influence of mineral elements on the yield and quality of grain of the prospective line in winter tritikale

2020 ◽  
Author(s):  
I.N. Voronchikhina ◽  
◽  
A.G. Marenkova ◽  
V. S. Rubets ◽  
V. V. Pylnev
Keyword(s):  
Cost Effective ◽  
Mineral Elements ◽  
Early Spring ◽  
High Potential ◽  
Winter Triticale ◽  
Yield And Quality ◽  
Fertilizer System

The results of elements development of varietal agrotechnics of a new high-potential line 238h of winter triticale presented. It was identified that under the conditions of 2020 the most cost effective fertilizer system is an early spring application of NPK (S) (15-15-15 (10)) at a dose of 200kg/ha. The profitability level of this fertilizer was 88,9%.

Evaluasi Keragaan Beberapa Hibrida Semangka Koleksi Balai Penelitian Tanaman Buah Tropika

2019 ◽  
Vol 15 (2) ◽  
pp. 101-105
Author(s):  
Makful Makful ◽  
Kuswandi Kuswandi ◽  
Sahlan Sahlan ◽  
Mega Andini
Keyword(s):  
Skin Color ◽  
Sweet Taste ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Hybrid Breeding ◽  
Skin Thickness ◽  
Tropical Fruit ◽  
Total Soluble Solids ◽  
Soluble Solid ◽  
High Yielding Varieties

Hybrid breeding of watermelon has led to the formation of high-yielding varieties. The objectives of the research were to determine the performance of hybrid watermelon of the Indonesian Tropical Fruit Research Institute (ITFRI) collection and to evaluate the superiority of each hybrid. The research has been conducted at Sumani Experimental Garden, ITFRI, Solok, West Sumatera, from April to July 2016. The material used consisted of 19 cross combinations. The data from this descriptive study were presented in the form of averages and pictures. The results showed that the hybrids that were tested showed diversity in size, fruit skin color, flesh color, skin thickness and fruit sweetness. Hybrids with three excellent characters, i.e. medium fruit weight, high total soluble solids (TSS) value, and moderate rind thickness, were not yet obtained. Hybrids that had the superiority in term of sweet taste and shelf life were BT1 × SGP, BT4 × BT4P, BT5 × BT4, BT6 × SGP and SGP × BT6. Keywords: hybrid, performance, total soluble solids, watermelon   ABSTRAK Pemuliaan hibrida pada semangka mengarah kepada pembentukan varietas berdaya hasil tinggi. Penelitian bertujuan untuk mengetahui keragaan hibrida semangka koleksi Balitbu Tropika dan untuk mengevaluasi keunggulan masing-masing hibrida Penelitian dilaksanakan di Kebun Percobaan Sumani, Balitbu Tropika, Solok, Sumatera Barat, dari bulan April sampai dengan Juli 2016. Materi yang digunakan terdiri dari 19 kombinasi persilangan. Data hasil penelitian deskriptif ini ditampilkan dalam bentuk rataan dan gambar. Hasil penelitian menunjukkan bahwa hibrida yang diuji memiliki keragaman dalam ukuran, warna kulit buah, warna daging buah, ketebalan kulit buah dan kemanisan. Belum ditemukan hibrida yang memiliki tiga karakter unggul, yang terdiri dari bobot buah sedang, total padatan terlarut (total soluble solid) tinggi, dan kulit buah agak tebal. Hibrida yang memiliki keunggulan berupa rasa manis dan tahan simpan adalah BT1 × SGP, BT4 × BT4P, BT5 × BT4, BT6 × SGP dan SGP × BT6. Kata kunci: hibrida, keragaan, semangka, total padatan terlarut

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