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.

YIELD STABILITY IN INTERCROPPING STUDIES OF SORGHUM OR MAIZE WITH COWPEA OR COMMON BEAN UNDER DIFFERENT FERTILITY LEVELS IN NORTHEASTERN BRAZIL

1983 ◽  
Vol 63 (4) ◽  
pp. 789-799 ◽  
Author(s):  
M. A. FARIS ◽  
M. R. A. de ARAÚJO ◽  
M. de A. LIRA ◽  
A. S. S. ARCOVERE
Keyword(s):  
Common Bean ◽  
Total Yield ◽  
Relative Yield ◽  
Yield Stability ◽  
Northeastern Brazil ◽  
Environment Interaction ◽  
Land Equivalent Ratio ◽  
The Mean ◽  
The Stability ◽  
Sorghum Bicolor L

Experimental evidence on yield stability of intercropping is sparse. This work was carried out to examine the stability of four intercrop patterns: maize (Zea mays L.)/cowpea (Vigna unguiculata (L.) Walp); maize/common bean (Phaseolus vulgaris L.); sorghum (Sorghum bicolor (L.) Moench)/cowpea; and, sorghum/common bean against their component crops. Twenty-one trials were established from 1974 to 1978. The mean relative yield advantage of intercropping patterns as indicated by the land equivalent ratio (LER) was 32%. The combined analysis of variance for the absolute total yields revealed that most of the pattern × environment interaction is accounted for by the heterogeneity of regressions. Pulses were less responsive to environmental change. However, cereals were more responsive to improvement in the environment resulting in increased yield. The regression lines of the intercropping patterns and sole cereals were closer to each other, due to the low yield contribution of the pulses to the intercropping total yield. However, the slopes of the intercropping pattern lines were closer to b = 1.0. On the basis of mean yield and regression slope, it was demonstrated that sole cereals or intercropping have better performance stability than sole pulses in northeastern Brazil.Key words: Stability, intercropping, sorghum, maize, cowpea, common bean

Evaluation of spring triticale genotypes by duration of phenological phases, yield and grain quality

2019 ◽  
Author(s):  
Р. Абделькави ◽  
А. Соловьёв
Keyword(s):  
Grain Quality ◽  
Weather Conditions ◽  
High Yield ◽  
Breeding Programs ◽  
Forage Crop ◽  
Breeding Lines ◽  
Spring Triticale ◽  
Stable Yield ◽  
Variety Testing

Исследования проводились в Московской области в 20172018 годах. В настоящее время тритикале ( Triticosecale Wittm.) в основном является кормовой культурой, однако она ценна и для пищевого направления использования. Целью работы было выявление генотипов яровой тритикале, обладающих высокой урожайностью и хорошим качеством зерна. Изучены элементы структуры урожая и качество зерна шести сортов отечественной и зарубежной селекции, а также шести селекционных линий, полученных коллективом авторов. Эксперимент и анализ результатов работы выполнены по Методике государственного сортоиспытания сельскохозяйственных культур . Метеорологические условия значительно повлияли на формирование различных элементов структуры урожая, а также на качество зерна яровой тритикале. Продолжительность вегетационного периода в 2017 году была почти на 3 недели больше, чем в 2018 году, вследствие его низкой теплообеспеченности. В сложившихся погодных условиях 20172018 годов самой низкорослой была линия П2-13-5-2. Линия С259 характеризовалась наиболее крупным зерном, среднеплотным колосом и высокой урожайностью. Сортообразцы Хлебодар Харьковский, Лана, C238 и Л8665 имели стабильную урожайность на уровне стандарта. Сорта Лана, Sandro и селекционные линии C259, 6-35-5 и П2-13-5-2 показали высокое содержание белка и клейковины в сравнении со стандартом Укро. Выделенные сортообразцы могут быть использованы в селекционных программах на урожайность и хорошее качество зерна. Сорт Ульяна и селекционная линия С259 были наиболее урожайными, адаптивными и характеризовались хорошими показателями качества зерна. Сорт Лана и линии П2-13-5-2 и Л8665 давали хлеб с хорошей общей хлебопекарной оценкой. The research was conducted in the Moscow region in 20172018. Currently triticale (Triticosecale Wittm.) is mainly a forage crop, but it is also valuable for food use. The aim of the work was to identify genotypes of spring triticale with high yield and good grain quality. The elements of crop structure and grain quality in 6 varieties of domestic and foreign selection, as well as 6 breeding lines obtained by the team of authors were studied. The experiment and analysis of the results of the work were carried out by the method of state variety testing of agricultural crops. Meteorological conditions significantly influenced the formation of various elements of the crop structure, as well as the quality of spring triticale grain. The duration of the growing season in 2017 was almost 3 weeks longer than in 2018, due to low heat supply. In the current weather conditions of 2017-2018 the plants of the line P2-13-5-2 had the shortest plant height. Line C259 was characterized by the largest grain, medium-dense ear and high yield. Genotypes Khlebodar Kharkovsky, Lana, C238 and L8665 had a stable yield at the standard level. Varieties Lana, Sandro and breeding lines C259, 6-35-5 and P2-13-5-2 showed a high content of protein and gluten in comparison with the standard Ukro. The selected varieties can be used in breeding programs for yield and good quality of grain. Variety Ulyana and breeding line C259 were the most productive, adaptive and characterized by good indicators of grain quality. Lana variety and lines P2-13-5-2 and L8665 gave bread with a good overall baking score.

scholarly journals Breeding evaluation of pepper lines obtained by in vitro anther culture

Genetika ◽  
2013 ◽  
Vol 45 (2) ◽  
pp. 601-610 ◽  
Author(s):  
Velichka Todorova ◽  
Stanislava Grozeva ◽  
Velichka Rodeva ◽  
Stoyka Masheva
Keyword(s):  
Verticillium Wilt ◽  
Total Yield ◽  
Fruit Traits ◽  
Breeding Programs ◽  
Length Width ◽  
New Varieties ◽  
Good Uniformity ◽  
And Control ◽  
Pepper Breeding

The comparative breeding evaluation was carried out with six advanced pepper lines (Capsicum annuum L.) with androgenic origin and their initial pepper variety Hebar during the period 2008 - 2010 in field conditions at Plovdiv, Bulgaria. The genotypes were characterized by total and standard yield, plant height and fruit traits: length, width, wall thickness and weight. The response of two lines (4 and 6) and control variety to the Verticillium wilt was also investigated on artificial infected background. According to the results of the experimental work standard and total yield in all androgenic lines were higher compared to the initial variety but significant differences were established only for lines 1, 2, 4 and 6. Line 6 was characterized with the highest standard yield (4009 kg/da) followed by line 2 (3829 kg/da). They exceeded variety Hebar with 42.26% and 35.89%, respectively. Line 2 formed the heaviest (61.31 g) and longer (11.24 cm) fruits than most studied genotypes. Anther-derived lines were also with a good uniformity by studied traits. In line 6 was registered lower index of infestation byVerticillium dahliae Kleb. than the control during the investigated period. These perspective lines will be included as valuable genetic resources for future pepper breeding programs for development of new varieties.

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.

RESISTANCE TO HELMINTHOSPORIUM DISEASE HIGH YIELD VARIETIES AND LINES OF SPRING BARLEY

1970 ◽  
pp. 33-35
Author(s):  
O. V. Levakova ◽  
L. M. Eroshenko
Keyword(s):  
Spring Barley ◽  
Stability Index ◽  
High Yield ◽  
Selection Line ◽  
Breeding Lines ◽  
Environmental Testing ◽  
Average Value ◽  
New Varieties ◽  
The Stability ◽  
Variety Testing

The article presents the results of environmental testing in the competitive variety trials of new varieties and perspective lines of spring barley was investigated at the experimental field of ISA-branch center FNAC VIM and FITS «Nemchinovka» in 2017-2019 g. In studies conducted in different moisture years among the rooms was a dedicated group of high-yielding and resistant to helminthosporium blights of varieties and perspective lines of spring barley. According to the obtained data, the assessment of selection numbers in ecological variety testing in the conditions of the Moscow and Ryazan regions allowed to establish a high average value (6,7-6,8 points) of complex resistance to reticulated and dark-brown spotting in the varieties Reliable, Raphael (GSI) and line 138/1-12 h 752. The lowest stability was noted in the variety Xanadu, which was 4.3 points.  The conversion of absolute values into percentages allowed comparing the behavior of varieties in the test points in different years. Over the years of research varieties Vladimir, Reliable and Rafael, as well as breeding lines 138/1-12 h 752, 60/1-12 h 81, 181/3-12 h 897, 135/2-13 h 1068 as a result had an average coefficient of adaptability over 100 (Ka=101.0-112.4 %). The study of the variability of the stability index by years and points showed that in General, there is a differentiation in the stability of its manifestation by varieties. The selection line 138/1-12 h 752 and varieties Raphael, Vladimir, Reliable (V= 23,7-24,5%) were less variable, varieties Moskovsky 86, Nur and Xanadu (V= 34,61 – 64,0%) were more variable. The assessment of the indicator of the level and stability of the trait showed that in terms of plasticity and resistance to helminthosporiosis, varieties Reliable, Raphael and breeding line 138/1-12 h 752 are distinguished (Puss=110.7-112.4).

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

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.

scholarly journals VARIABILTY AND STABILTY OF TUBER YIELD OF JERUSALEM ARTICHOKE (Helianthus tuberosus L.) / VARIABILIDAD Y ESTABILIDAD DEL RENDIMIENTO DE TUBERCULOS DEL TOPINAMBO / VARIABILITÉ ET STABILITÉ DU RENDEMENT DU TUBERCULE DE TOPINAMBUR

Helia ◽  
2001 ◽  
Vol 24 (35) ◽  
pp. 25-32 ◽  
Author(s):  
Janoš Berenji ◽  
Vladimir Sikora
Keyword(s):  
Tuber Yield ◽  
Jerusalem Artichoke ◽  
Tuber Size ◽  
Yield Stability ◽  
Tuber Number ◽  
High Yield ◽  
Helianthus Tuberosus ◽  
Variety Trial ◽  
Stable Performance ◽  
The Stability

SUMMARYThe objective of this paper was to estimate the genetic and ecological variation as well as the stability of tuber yield per plant, tuber number per plant and tuber size of Jerusalem artichoke based on the results of a variety trial carried out with 20 different Jerusalem artichoke varieties during the period of 1994-2000. Significant genetic as well as ecologycal variation was observed for all of the traits studied. The most promissing varieties showing high tuber yield combined with high yield stability were “BT-4”, “Violet Rennes” and “UKR 4/ 82”. It is encouraging that the highest yielding varieties exibited a rather stable performance over environments.

scholarly journals The crucial role of mulch to enhance the stability and resilience of cropping systems in southern Africa

2021 ◽  
Vol 41 (2) ◽  
Author(s):  
Blessing Mhlanga ◽  
Laura Ercoli ◽  
Elisa Pellegrino ◽  
Andrea Onofri ◽  
Christian Thierfelder
Keyword(s):  
Crop Rotation ◽  
Southern Africa ◽  
Cropping Systems ◽  
Conservation Agriculture ◽  
Conventional Tillage ◽  
Yield Stability ◽  
No Tillage ◽  
The Stability ◽  
Stability And Resilience

AbstractConservation agriculture has been promoted to sustainably intensify food production in smallholder farming systems in southern Africa. However, farmers have rarely fully implemented all its components, resulting in different combinations of no-tillage, crop rotation, and permanent soil cover being practiced, thus resulting in variable yield responses depending on climatic and soil conditions. Therefore, it is crucial to assess the effect of conservation agriculture components on yield stability. We hypothesized that the use of all three conservation agriculture components would perform the best, resulting in more stable production in all environments. We evaluated at, eight trial locations across southern Africa, how partial and full implementation of these components affected crop yield and yield stability compared with conventional tillage alone or combined with mulching and/or crop rotation. Grain yield and shoot biomass of maize and cowpea were recorded along with precipitation for 2 to 5 years. Across different environments, the addition of crop rotation and mulch to no-tillage increased maize grain by 6%, and the same practices added to conventional tillage led to 13% yield increase. Conversely, adding only mulch or crop rotation to no-tillage or conventional tillage led to lower or equal maize yield. Stability analyses based on Shukla’s index showed for the first time that the most stable systems are those in which mulch is added without crop rotation. Moreover, the highest yielding systems were the least stable. Finally, additive main effects and multiplicative interaction analysis allowed clarifying that mulch added to no-tillage gives stable yields on sandy soil with high rainfall. Similarly, mulch added to conventional tillage gives stable yield on sandy soil, but under low rainfall. This is the first study that highlighted the crucial role of mulch to enhance the stability and resilience of cropping systems in southern Africa, supporting their adaptability to climate change.

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