Agro-morphological and nutritional variability among elite Nsukka yellow spice pepper breeding lines

2019 ◽  
Vol 26 (5) ◽  
pp. 516-531
Author(s):  
Christian Okechukwu Anyaoha ◽  
Olufemi. T. Ademoyegun ◽  
Solomon O. Afuape
Keyword(s):  
Breeding Lines ◽  
Pepper Breeding

scholarly journals Creation of pepper doubled haploids and morphological characterization of androgenic plants

Euphytica ◽  
2021 ◽  
Vol 217 (6) ◽  
Author(s):  
Stanislava Grozeva ◽  
Velichka Todorova ◽  
Amol N. Nankar
Keyword(s):  
Anther Culture ◽  
Doubled Haploid ◽  
Agronomic Traits ◽  
Doubled Haploids ◽  
Microspore Embryogenesis ◽  
Morphological Characterization ◽  
Fruit Traits ◽  
Breeding Lines ◽  
Pepper Breeding

AbstractThe Balkan pepper breeding program aims to use in vitro embryogenesis (anther culture) to develop doubled haploid pepper lines with valuable traits. We analyzed the effectiveness of microspore embryogenesis on 17 pepper genotypes comprised of varieties, breeding lines, and F1 hybrids of different varietal types (conical, bell shape, and kapia) and characterized the agronomic traits of newly generated doubled haploid lines. The highest androgenic potential was observed in the variety Stryama and breeding line 560/06 with 9.55 and 13.00% reacted anthers, respectively. Of the 186 regenerated plants, 147 were successfully adapted with a survival index of 79.03%. Flow cytometry analysis showed that the haploid:diploid ratio of regenerants was 1.5:1. All diploid plants were confirmed to be androgenic in origin. There were significant differences in terms of quantitative fruit characteristics of length, width, weight, pericarp weight, pericarp thickness, and productivity per plant among the diploid lines. Also, androgenic lines 21, 23, and 74 derived from Stryama and line 55 obtained from Zlaten medal 7 were distinguished with higher values of some fruit traits compared to initial genotypes. Additionally, several androgenesis lines (Stryama lines 21, 23, and 74, and Zlaten medal 7 line 55) scored higher for some fruit traits compared to the initial genotype. These results show that anther culture is a promising tool for the creation of Balkan pepper breeding lines with improved traits.

scholarly journals Molecular Selection Of Tomato And Pepper Breeding Lines Possessing Resistance Alleles Against Tobamoviruses

2015 ◽  
Vol 61 (1) ◽  
pp. 33-37
Author(s):  
Martina Hudcovicová ◽  
Erika Korbelová ◽  
Svetlana Šliková ◽  
Lenka Klčová ◽  
Daniel Mihálik ◽  
...  
Keyword(s):  
Dna Markers ◽  
Dna Marker ◽  
Resistant Cultivar ◽  
Breeding Programs ◽  
Breeding Lines ◽  
Resistant Allele ◽  
Susceptible Allele ◽  
Molecular Selection ◽  
Pepper Breeding ◽  
Selection Of

Abstract Molecular selection among newly created tomato and pepper lines was applied for identification of lines possessing DNA markers linked with the resistant loci against tobamoviruses ToMV, TMV, PaMMV, and PMMoV. Only four tomato lines among 184 had DNA marker linked with the resistant allele Tm-2 conferring homozygosity at this locus. Resistance of these four lines was tested and confirmed also by virological testing by inoculation with TMV strain 0. Simultaneously tested lines heterozygous at this locus expressed full or unbalanced resistance. Fifty-eight out of 62 tested pepper lines had only marker linked to susceptible allele of the locus L. Three lines derived from tobamovirus resistant pepper cultivars Brill and Brilliant expressed marker linked to resistant allele L3, and only one line derived from resistant cultivar Hurricane possessed both markers. Four selected pepper lines declared resistance also after artificial inoculation with the TMV P0 pathotype. Molecular selection, both in tomato and pepper breeding lines, may be useful in breeding programs directed to tobamovirus resistance.

scholarly journals Susceptibility of ten pepper breeding lines to cucumber mosaic virus disease

Agrosearch ◽  
2020 ◽  
Vol 19 (2) ◽  
pp. 87-99
Author(s):  
C.J. Adama ◽  
M.T. Salaudeen ◽  
L.Y. Bello ◽  
C.O. Anyaoha ◽  
A.A. Abdullahi
Keyword(s):  
Cucumber Mosaic Virus ◽  
Mosaic Virus ◽  
Capsicum Annuum ◽  
Virus Disease ◽  
Disease Incidence ◽  
Effective Control ◽  
Virus Diseases ◽  
Yield Attributes ◽  
Breeding Lines ◽  
Pepper Breeding

Pepper (Capsicum annuum) is a major vegetable of global importance. Its production is however affected by varying biotic and abiotic stresses. Virus infections possess a genuine danger to pepper cultivation in Nigeria and all over the world resulting in over 50 % yield losses. Thus, the need to subject available pepper germplasm to screening against virus diseases for possible identification of resistant genes which may be used in breeding programmes to obtain improved lines that are high yielding. This study was undertaken to evaluate the growth and performances of ten pepper breeding lines under cucumber mosaic virus disease. The experiment was laid out in completely randomised design with five replications. Ten pepper breeding lines were evaluated as healthy and inoculated with cucumber mosaic virus and evaluated for their responses. Data were recorded for disease incidence, severity, growth and yield attributes. The data were subjected to analysis of variance. The results revealed that NHPK/D6-1-1 which showed mild disease incidence (36.7 % on average) with an average severity (score = 2.2), produced the highest number of leaves per plant (13) and branches (8) under diseased condition was the least vulnerable. The CMV-infected breeding lines were fruitless except for NHPK/D6-1-1 and NHPK/21-4-1-2 which produced an average of 2 fruits per plant. The selection of NHPK/D6-1-1 and NHPK/21-4-1-2 for further evaluation is therefore recommended for possible CMV-tolerant genes. The identification of virus-resistant breeding lines would provide more effective control of virus diseases in pepper production. Keywords: Capsicum annuum; Cucumber mosaic virus; Breeding lines; NHPK

scholarly journals Assessment of yield and yield stability of new perspective pepper breeding lines with conical shape

Genetika ◽  
2014 ◽  
Vol 46 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Nikolay Panayotov ◽  
Dochka Dimova
Keyword(s):  
Total Yield ◽  
Sweet Pepper ◽  
Yield Stability ◽  
Breeding Programs ◽  
Breeding Lines ◽  
Conventional Technology ◽  
New Perspective ◽  
The Stability ◽  
Pepper Breeding ◽  
Variety Testing

The main goal of the present study was to estimate new perspective Bulgarian conic lines pepper about yield and stability of the yield with purpose to be presented for Government variety testing and to been included in new breeding programs. Three years experiments were carried out in Experimental fields of Agricultural University, Plovdiv, Bulgaria with eight new perspective consolidated hybrids of sweet pepper. Typical Bulgarian variety Kurtovska kapia 1619 was used as a standard. The plants were grown according to the conventional technology for middle early field production for South Bulgarian condition. Four harvests were done - one of green fruits and three of red ripening fruits. The total yield, weight and length of fruit were determined. The stability of yield (Ysi) by the methods Kang was calculated. The lines with the highest yield were Doux Marconi Rouge ? Kapia 1300 F8 and Doux Marconi San Semences ? Kalinkov 800/7 F7 with productivity of 5034.1 kg/da and 4881.3 kg/da respectively. The index of yield stability was highest 7+ about following breeding lines Doux Marconi San Semences ? Kalinkov 800/7 F7 and Kapia 1300 ? Doux d?Espagne F9. The lines Doux Marconi Rouge ? Kapia 1300 F8, Doux Marconi San Semences ? Kalinkov 800/7 F7 and Doux Marconi Rouge ? Kapia 1300 F7 are suitable to be included in new selection programs for more successfully breeding.

scholarly journals COMBINING ABILITY OF SWEET PEPPER BREEDING LINES FOR THE MAIN COMPONENTS OF YIELD

2017 ◽  
pp. 9-12
Author(s):  
E. S. Demidov ◽  
O. P. Bronich ◽  
O. N. Shlijomka ◽  
I. V. Kropiviyanskaya
Keyword(s):  
Combining Ability ◽  
Sweet Pepper ◽  
Breeding Lines ◽  
Main Components ◽  
Pepper Breeding

Development of low-Gly m Bd 30K(P34) allergen breeding lines using molecular marker in soybean

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
J Kwang Ho ◽  
C Man Soo ◽  
L Suk Ki ◽  
S Min Jung ◽  
K Yul Ho ◽  
...  
Keyword(s):  
Molecular Marker ◽  
Breeding Lines

Comparative evaluation of breeding lines of sugar sorgo in competitive variety testing

2020 ◽  
Author(s):  
E. A. Vertikova ◽  
Keyword(s):  
Comparative Evaluation ◽  
The State ◽  
Volga Region ◽  
Lower Volga Region ◽  
Breeding Lines ◽  
Variety Trial ◽  
Lower Volga ◽  
Variety Testing

In a competitive variety trial, promising selection lines of sugar sorghum were studied in the Lower Volga region. Based on a set of signs, the best lines were identified, which are recommended for transfer to the State Variety Testing. Breeding lines, which are distinguished by high values of commercially valuable traits, can be used in planned crosses to create highly productive varieties and hybrids of sugar sorghum.

HIGH-PROTEIN VARIETIES AND PERSPECTIVE LINES OF SPRING BARLEY

1970 ◽  
pp. 23-25
Author(s):  
O. V. Levakova ◽  
L. M. Eroshenko
Keyword(s):  
Spring Barley ◽  
Weather Conditions ◽  
High Protein ◽  
New Variety ◽  
Breeding Lines ◽  
Feed Value ◽  
New Varieties ◽  
Research Grade ◽  
Range Of Variation ◽  
Variety Testing

The article presents the results of the analysis of the biochemical composition of selected in the competitive variety testing of new varieties and promising lines of spring barley, studied on the experimental field ISA-branch of FGBNU FNAC VIM in 2016-2018. Result of research in different years of water availability among the rooms was allocated a group of high-protein barley with improved feed value: 4 varieties, 2 of which are on the state variety testing, and 2 promising lines. The range of variation of protein content in the grain of the selected samples varied from 13.1 to 14.5 %, lysine – from 0.48 to 0.52 %, weight of 1000 grains-from 48.0 to 53.5 g. According to the data obtained the highest value of protein in grain was observed in krupnosortnogo varieties Zlatoyar (GSI), amounting on average for 14.5 %. The increase was equal to 1.1% in relation to the control variety Yaromir. With an average yield of 6.52 t/ha in the years of research grade Accounting have provided protein per hectare in the amount of 0,94 t/ha. A new variety Sudar´ (GSI) and breeding line 149/4-12 h 788 and 129/1-14 h 907 this indicator has been less productive, however, exceeded the grade Yaromir 0.10 to 0.16 t/ha. Given the higher productivity of new promising varieties and breeding lines, the collection of lysine per unit area they have 12.7, 30.8 per cent was higher than that of the Promej class and 10.6-23.6% more than in the variety Yaromir, which indicates their high biological value. Selected hulless line 1137 h is also an encouraging source of protein and other nutrients of plant origin. The selected lines and new varieties, regardless of weather conditions, were able to ensure the production of high-protein and sources' grain for feed purposes, while maintaining productivity.

Multi-environment evaluation of Spanish bunch groundnut genotypes for fresh seed dormancy

2019 ◽  
Vol 79 (3) ◽  
Author(s):  
Narendra Kumar ◽  
B. C. Ajay ◽  
A. L. Rathnakumar ◽  
T. . Radhakrishnan ◽  
M. C. Dagla1 ◽  
...  
Keyword(s):  
Seed Dormancy ◽  
Stability Index ◽  
Pooled Analysis ◽  
Genetic Stock ◽  
Breeding Lines ◽  
Fresh Seed ◽  
Differential Behavior ◽  
Environmental Interactions ◽  
Crop Maturity

The present study was carried out to evaluate eight promising Spanish bunch groundnut genotypes during four consecutive year (2014, 2015, 2016, 2017) to study genotype × environmental interactions and to identify stable sources of fresh seed dormancy in Spanish background in groundnut. Pooled analysis of variance revealed highly significant differences among the genotypes and genotype × environmental interactions for fresh seed dormancy at weekly intervals indicating that differential behavior of genotypes for fresh seed dormancy over the environmental conditions. Based on the results of intensity and duration of dormancy and germination stability index, identified four stable advanced breeding lines viz., PBS 12192, PBS 12187, PBS 12191 and PBS 12190 having high fresh seed dormancy of three week and two stable advanced breeding lines viz., PBS 12189 and PBS 12171 having high fresh seed dormancy of two week. Therefore, these genotypes can be used as novel genetic stock of fresh seed dormancy in Spanish bunch and they can be integrated into breeding programs to develop high yielding Spanish bunch cultivars with 2-3 weeks of fresh seed dormancy to avoid yield losses due to in-situ germination at the time of crop maturity.

Transfer of leaf and stripe rust resistance genes Lr19 and Yr15 in to a susceptible wheat cultivar HS295

2019 ◽  
Vol 79 (3) ◽  
Author(s):  
Pratima Sharma ◽  
Madhu Patial ◽  
Dharam Pal ◽  
S. C. Bhardwaj ◽  
Subodh . Kumar ◽  
...  
Keyword(s):  
Rust Resistance ◽  
Ssr Marker ◽  
Scar Marker ◽  
Adult Plant Resistance ◽  
Wheat Cultivar ◽  
Stripe Rust Resistance ◽  
Adult Plant ◽  
Potential Donor ◽  
Seedling Resistance ◽  
Breeding Lines

The present study was conducted to transfer multiple rust resistance in a popular but rust susceptible wheat cultivar HS295. Selected derivatives WBM3632 and WBM3635 have been developed from a cross, HS295*2/FLW20//HS295*2/ FLW13 using bulk-pedigree method of breeding. Advance line WBM3697 selected from a breeding line WBM3532 was named as HS661. This line was evaluated for seedling resistance to a wide array of rust pathotypes and found to possess resistance to all the three rusts. HS661 was also tested under field conditions and showed adult plant resistance to leaf rust (AC1=0.6), stem rust (ACI=2.7) and strpe rust (AC1=3.8). Among 34 F3 lines, 28 were tested positive for SSR marker Xwmc221 indicating the presence of Lr19/Sr25. Out of 14 selected F4 lines from F3, nine were homozygous positive for Lr19/Sr25. The advanced breeding lines viz., WBM3632 (WBM3697) and WBM3635 were also positive for Lr19/Sr25 with SCAR marker SCS265512. SSR marker Xgwm1 producing 215 bp band in Avst-15, FLW13 and HS661 confirmed the presence of Yr15 . Agronomically, HS661 was comparable with recipient variety HS295 and superior to a standard check HS490 under late sown restricted irrigation production conditions of NHZ. HS661 may serve as a potential donor for creating new usable variability against all the three rusts.

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