EFFECTS OF THE SPRING TRITICALE GENOTYPES INTERACTION WITH ENVIRONMENTAL FACTORS

1970 ◽  
pp. 18-22
Author(s):  
К. V. Zenkina ◽  
Т. А. Aseeva
Keyword(s):  
Environmental Factors ◽  
Environmental Sustainability ◽  
Regression Coefficient ◽  
Cumulative Effect ◽  
Climatic Conditions ◽  
Amur Region ◽  
Stress Factors ◽  
Environment Interaction ◽  
Genotype Environment Interaction ◽  
Spring Triticale

As objects of research, 40 varieties and lines of spring triticale of various ecological and geographical origins were used. To identify the degree of influence of the genotype-environment interaction on the formation of the yield of spring triticale, differentiation of varieties according to yield levels was carried out and dispersive, correlation and regression analysis was used. The linear nature of the reaction of spring triticale genotypes to the environment is maintained as long as the loads of environmental factors do not exceed the buffer capacity of the varieties. The spring triticale yields were ranked during different vegetation periods and AC Certa, Grebeshok, Lana, Ulyana, Uzor, Lotos, Victoria, Losinovsk, Sandio samples were selected with optimal environmental resistance to stress factors of the Middle Amur Region. In the dispersion of the yield of spring triticale, the influence of environmental factors is 41.3%, varieties - 19.6%, and genotype-environment interactions - 39.1%. This suggests that during the formation of spring triticale yields, the conditions of the Middle Amur region prevail over the genotypes and the genotype-environment interaction. Based on the multiple correlation analysis, the cumulative effect of environmental factors on the production process of spring triticale (R = 0.554) was established. A mathematical model of spring triticale productivity has been created depending on the weather and climatic conditions of the growing season. According to the coefficients of the regression equation, photosynthetically active radiation (the regression coefficient is 0.5533) and the relative humidity of the air (the regression coefficient is 1.9640) during the organogenesis of spring triticale have a significant impact on the plant yield. The low environmental sustainability of the studied varieties and lines of spring triticale in the Middle Amur Region indicates the need to create a new source material as the basis of highly productive and sustainable agrobiocenosis.

scholarly journals Environmental Sustainability of Triticales to Adverse Environmental Factors

2020 ◽  
Vol 15 (1) ◽  
pp. 49-59
Author(s):  
T. A. Aseeva ◽  
K. V. Zenkina
Keyword(s):  
Environmental Factors ◽  
Environmental Sustainability ◽  
Negative Impact ◽  
Climatic Factors ◽  
Maximum Yield ◽  
Stress Factors ◽  
Yield Potential ◽  
Mathematical Methods ◽  
High Productivity ◽  
Spring Triticale

Aim. In regions where farming is risky it is especially important to grow crops with high productivity and optimal adaptability to environmental stress factors. In this regard, the purpose of this study was to determine the environmental sustainability of spring triticale cultivars to the unfavourable environmental factors of the Middle Amur Region.Material and Methods. Many statistical and mathematical methods were used to determine the adaptiveness of potential spring triticale cultivars by yield. As re‐search material, we used 40 cultivars and breeding lines of spring triticale of various ecological and geographical origins.Results. Using cluster analysis, triticale samples were ranked into 5 groups with differing responses to the spectrum of changes in environmental conditions. As a result of this research, it was established that the Skoryi (Russia) and Viktoria (Ukraine) cultivars achieve maximum yield potential as well as having an ability to neutralize the negative impact of soil and climatic factors.Conclusion. The reaction of triticale cultivars to specific vegetation conditions was established. Exemplars of spring triticale with high environmental sustainability, ductility and stability for economic use and further breeding were identified.

scholarly journals Date of ear emergence: a factor for notable changing the grain yield of modern winter wheat varieties in different environments of Bulgaria

2021 ◽  
pp. 12-18
Author(s):  
N. Tsenov ◽  
T. Gubatov ◽  
I. Yanchev
Keyword(s):  
Environmental Factors ◽  
Winter Wheat ◽  
Grain Yield ◽  
Environmental Conditions ◽  
Climatic Conditions ◽  
Environment Interaction ◽  
Wheat Varieties ◽  
Emergence Date ◽  
The Relationship ◽  
Winter Wheat Varieties

Abstract. Wheat is a crop with a very long growing season, during which it is subjected to prolonged exposure to many environmental factors. For this reason, the interaction of genotype with conditions is very common for any character of wheat. This study aims to determine whether the grain yield is affected by the change of the ear emergence date (EED) in various environments. In a four-year period, 30 current for national real grain production winter wheat varieties were studied. The EED and grain yield (GY) were studied as quantitative traits within five locations of the country having various soil and climatic conditions. Using several statistical programs, genotype x environment interaction of two traits was analyzed. The emphasis on data analysis was whether changes of traits due to the conditions were related and that the optimization of the ear emergence date could serve as a breeding tool for increasing grain yield. The date of ear emergence and grain yield are traits that are reliably influenced by growing conditions. The change in the date of emergence is mainly of the linear type, while the grain yield shows linear and nonlinear type changes in the same environmental conditions. It was found that the key roles in the change of characteristics are the conditions of the year, with the relatively weakest impact of the genotype on them. There is a positive relationship between the two traits, although their change depends on environmental factors. Although they change to different degrees and in relation to each other, there is a positive correlation between them. The more favorable the environmental conditions, the weaker the relationship between these two traits and vice versa. Under changing climatic conditions, the change in the relationship between the two traits is a signal of the need to create different varieties by date of ear emergence in order to obtain higher yields in the future.

scholarly journals Genotype-environment interaction on stability of grain yield and physio-biochemical traits in bread wheat (Triticum aestivum L.)

2019 ◽  
Vol 48 (4) ◽  
pp. 1143-1151
Author(s):  
Vijay Sharma ◽  
RB Dubey ◽  
Rumana Khan
Keyword(s):  
Grain Yield ◽  
Regression Coefficient ◽  
Triticum Aestivum L ◽  
Pooled Analysis ◽  
Environment Interaction ◽  
Biochemical Traits ◽  
Mean Values ◽  
Genotype Environment Interaction ◽  
Wheat Hybrids ◽  
The Stability

To assess the stability of genotypes for grain yield and physio-biochemical traits associated with terminal heat tolerance pooled analysis of 8 genotypes of wheat of diverse origin, their 28 F1 progeny and 2 checks were carried out in 4 different environments i.e. early sown (E1), normal sown (E2), late sown (E3) and very late sown (E4) conditions. The pooled analysis of variance due to environment (for proline and chlorophyll content), genotypes and genotype × environment interaction was significant for all the traits under consideration. This indicated the distinct and differential effect of the different sowing conditions (environment) and differential response of all the genotypes chosen for the study. The five stable wheat hybrids viz., HI 1544 × HD 2987, Raj 4037 × HD 2987, PBW 175 × HD 2987, HD 2932 × Raj 4079 and PBW 175 × Lok 1 showed higher mean values, favourable regression coefficient and deviation from regression coefficient for grain yield and other associated characters, thus emerged as stable genotypes as per criteria of stability analysis. Similarly, some genotypes showed specific adaptations for poor or heat stress environment.

scholarly journals Evaluation of stability in maize hybrids using univariate parametric methods

2021 ◽  
Author(s):  
Seyed Habib Shojaei ◽  
Khodadad Mostafavi ◽  
Amirparviz Lak ◽  
Ali Omrani ◽  
Saeed Omrani ◽  
...  
Keyword(s):  
Grain Yield ◽  
Climatic Conditions ◽  
High Yield ◽  
Environment Interaction ◽  
Average Yield ◽  
Stability Parameters ◽  
Environmental Variance ◽  
Maize Hybrids ◽  
Genotype Environment Interaction ◽  
The Stability

AbstractGenotype × environment interaction is one of the complex issues of breeding programs to produce high-yielding and compatible cultivars. Interaction of genotype × environment and make the more accurate selection, the performance and stability of hybrids need to be considered simultaneously. This study aimed to investigate stable genotypes with yield using 12 maize hybrids in different climatic conditions of Iran. The experimental design used was a randomized complete blocks design in three replications in two cropping years in Karaj, Birjand, Shiraz, and Arak stations. The simple analysis of variance performed on grain yield of genotypes indicated that all hybrids studied each year and station were significantly different in grain yield. Also, the combined analysis results showed a significant effect on the environment, the effects of genotype, and the interaction of genotype × environment and t in the studied hybrids different. Comparing Duncan's mean on the data obtained from the research, KSC705 genotypes with an average yield of 7.21 and KSC704 genotype with an average yield of 7.04 were identified as high yield cultivars. In order to identify stable cultivars, six stability parameters were used. KSC260 and KSC707 genotypes had stability Based on the environmental variance, also had stability based KSC705, KSC707 genotype on environmental the coefficient of variation, and KSC260 genotypes had stability based methods of genotype and environment interaction. As well as based on Eberhart and Russell regression coefficient had the stability to KSC400 and SC647 genotypes. Also, they were identified as the most stable genotypes based on the detection coefficient method, KSC707, and KSC703 genotypes.

scholarly journals Adaptivity of spring triticale sorts in agroecological conditions of the middle priamurye

2019 ◽  
Vol 1 (1) ◽  
pp. 9-11
Author(s):  
T. T. Aseeva ◽  
K. V. Zenkina
Keyword(s):  
Crop Rotation ◽  
High Stability ◽  
Neutral Type ◽  
Vegetation Period ◽  
Climatic Conditions ◽  
Stress Factors ◽  
Ecological Plasticity ◽  
Spring Triticale ◽  
World Collection ◽  
Far Eastern

The aim of this work is to fix the price of the adaptive properties of spring triticale, created in different ecology-geographical zones, in agroecological conditions of the Middle Priamurye concerning the productivity. The researches have been done in 2015-2017 years on the selection crop rotation of the Far-Eastern NIISH. The eight sort samples of spring triticale from VIR world collection, created in different ecology-geographical zones, were picked out and analyzed. The hydrothermic conditions during the researching years were of various character: index of surroundings conditions changed from -5,05 to 4,95. The best conditions for the sorts were in 2017 year, when the index of surroundings had the greatest importance. The negative index of surroundings was typical for 2016 year, when the soil remoistening during the whole vegetation period became the factor affecting on the spring triticale productivity. The genotypes of spring triticale showed the different adaptive properties in hydrothermic conditions of the Middle Priamurye. The sorts of spring triticale Skory, Ulyana, Victoria showed the high stability to stress factors of growing. The maximum correspondence with the factors of the Middle Priamurye surroundings is with the genotype of sort Rovnya. The sorts of high intensive type – Skory and Ulyana – are responsive to conditions improvement. That is why they are characterized by stable productivity. Sort Victoria is concerned to ecologically plastic in the soil-climatic conditions of the Middle Priamurye. The sorts: Ukro, Rovnya, Lana, Oberig kharkovskiy and AC Certa are concerned to neutral type; according to the ecological plasticity of they have no stability in productivity forming.

scholarly journals Genotype × environment interaction effects on cured leaf colour distribution in Zimbabwean Virginia tobacco (Nicotianatabacum L)

2018 ◽  
Author(s):  
Justify Gotami Shava ◽  
Susan Kageler ◽  
Shorai Dari ◽  
Frank Magama ◽  
Dzingai Rukuni
Keyword(s):  
Management Practice ◽  
Block Design ◽  
Interaction Effects ◽  
Climatic Conditions ◽  
Relative Price ◽  
Environment Interaction ◽  
Leaf Colour ◽  
Genotype Environment Interaction ◽  
Wide Range ◽  
Colour Distribution

Cured leaf colour is one of the most important traits in Virginia tobacco (Nicotianatabacum L) production. Cured leaf colour is associated with the relative nicotine content of the leaf and determines the relative price of the cured leaf on the market. There are three main Virginia tobacco cured leaf colours namely lemon, orange and mahogany. Virginia tobacco breeders in Zimbabwe aim to produce varieties that give each of the cured leaf styles to satisfy a wide range of farmer preferences. However, it is often speculated without empirical evidence that the location, climatic conditions and hence farmer management practice influence the cured leaf colour of Virginia tobacco produced by a farmer. A study involving twelve genotypes was conducted in eight farming locations across Zimbabwe over two seasons to determine the genotype × environment interaction effects on Virginia tobacco cured leaf colour. Experiments in each location was laid out as a randomised complete block design (RCBD) with three replicates and data on the proportion of the cured leaf that was classified as dark (orange and mahogany) was observed. The collected data was analysed using the AMMI Model in Genstat Version 17 it was shown that there were no significant genotype × environment interaction effects for cured Virginia tobacco leaf colour (p > 0.05). The results have also indicated that Virginia tobacco varieties with K E1 as their progenitor gave relatively high proportions of dark cured leaf styles.

scholarly journals Sweetpotato Grown from Root Pieces Displays a Significant Genotype × Environment Interaction and Yield Instability

HortScience ◽  
2014 ◽  
Vol 49 (8) ◽  
pp. 984-990
Author(s):  
Nicholas A. George ◽  
Mark Shankle ◽  
Jeff Main ◽  
Kenneth V. Pecota ◽  
Consuelo Arellano ◽  
...  
Keyword(s):  
North Carolina ◽  
Environmental Factors ◽  
Yield Stability ◽  
Environment Interaction ◽  
Root Piece ◽  
Environment Effects ◽  
Genotype Environment Interaction ◽  
Phenotype Screening ◽  
Genetic And Environmental Factors ◽  
Planting System

Various workers have attempted to develop a root piece planting system for sweetpotato, similar to the system used commercially for potato, but attempts to select and breed sweetpotato clones adapted to root piece planting have met with mixed success. It has been hypothesized this is the result of significant genotype × environment effects, which are complicating phenotype screening. The aim of this work was to investigate genotype × environment interactions and yield stability of sweetpotato grown from cut root pieces. Ten sweetpotato clones were grown from cut root pieces in three locations over three seasons at sites in North Carolina and Mississippi. The study found sweetpotato clones grown from root pieces were influenced by both genetic and environmental factors and that the interaction was often complicated and dependent on the trait being measured. A significant genotype × environment interaction and yield instability were found to be present. Further work will be required to understand the nature of the genotype × environment effects; however, the results suggest programs aiming to develop sweetpotato clones adapted to root piece planting will need to use appropriate multienvironment screening so as to account for genotype × environment effects.

Genotype × environment interaction of seed yield and seed index in bitter vetch

2002 ◽  
Vol 50 (2) ◽  
pp. 203-207
Author(s):  
M. A. Turk
Keyword(s):  
Seed Yield ◽  
Climatic Conditions ◽  
Selection Line ◽  
Environment Interaction ◽  
Growing Seasons ◽  
Genotype Environment Interaction ◽  
Bitter Vetch ◽  
Line Selection ◽  
Seed Index ◽  
100 Seed Weight

Nine bitter vetch selection lines were evaluated in three successive years to determine their yield and seed index (100-seed weight) stabilities, based on three parameters: phenotypic index (P), regression coefficient (bi), and least deviation from regression (S2 di). The line Sel. 2517 (L7) was identified as the most stable one for the growing seasons, while Sel. 2509 (L2) and Sel. 2511 (L4) were found to be stable for seed yield under favourable climatic conditions. For seed index Sel. 2515 (L6) was identified as the most stable line. Selection line 2513 (L5), which originated from Cyprus, had the highest degree of responsiveness to changing environments.

scholarly journals Genotype X Environment Interaction and Yield Stability in Early-Maturing Cowpea (Vigna unguiculata (L.) Walp.) Landraces in Ethiopia

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Yirga Kindie ◽  
Bulti Tesso ◽  
Berhanu Amsalu
Keyword(s):  
Grain Yield ◽  
Analysis Of Variance ◽  
Vigna Unguiculata ◽  
Regression Coefficient ◽  
Yield Stability ◽  
Environment Interaction ◽  
Genotype X Environment ◽  
Genotype Environment Interaction ◽  
Cropping Season ◽  
Early Maturing

The study was conducted to estimate the effects of genotype, environment, and genotype × environment interaction on grain yield and yield-related traits and to identify stability genotype. At six environments, twenty-four cowpea landraces and one check were evaluated in a 5 × 5 triple lattice during the 2019 cropping season. Data were collected on yield and yield-related traits. The analysis of variance for each environment and across environments showed significant differences among genotypes, environments, and GEI for most traits including yield. Environment, genotype, and GEI showed 27.45%, 20.9%, and 49.55% contribution to the total sum of squares, respectively, for grain yield. This indicated that the environments were diverse and most of the variation in grain yield was caused due to interaction and environmental means. G24 (2632 kg ha−1) and G16 (2290 kg ha−1) were the highest yielder and stable genotypes with mean grain yields above the grand mean (2049.28 kg ha−1) and standard check (2273 kg ha−1). G24 and G16 were the most stable genotypes according to cultivar superiority, Wricke’s ecovalence, regression coefficient, and devotion from regression stability models.

scholarly journals Results of comparative evaluation of potato varieties according to productivity and adaptability parameters in the conditions of Priamurye

2020 ◽  
Author(s):  
С.В. РАФАЛЬСКИЙ ◽  
О.М. РАФАЛЬСКАЯ ◽  
Т.В. МЕЛЬНИКОВА
Keyword(s):  
Environmental Factors ◽  
Potato Variety ◽  
Comparative Evaluation ◽  
Regression Coefficient ◽  
Neutral Type ◽  
Climatic Conditions ◽  
High Yield ◽  
Adaptive Potential ◽  
Potato Varieties ◽  
Adaptability Parameters

Проведена сравнительная оценка основных хозяйственно ценных показателей (урожайность и адаптивность) 25 сортов картофеля отечественной и зарубежной селекции в сложных природно-климатических условиях Амурской области. Высокая урожайность клубней (т/га) отмечена у сортов Кетский (32,2), Очарование (30,3), Ривьера (29,7), Витесса (29,2) и Огниво (29,0). Установлено 11 сортов с высоким адаптивным потенциалом (Ка > 1): Кетский, Очарование, Ривьера, Витесса, Чайка, Примадонна, Огниво, Рябинушка, Родриго, Каратоп и Импала. Высокий коэффициент регрессии bi, характеризующий отзывчивость на изменение природно-климатических условий, отмечен у сорта интенсивного типа Хозяин (bi = 1,20). Установлено, что среднеспелый сорт Вулкан является пластичным (bi = 0,90), а сорта различных групп спелости: Рябинушка, Витесса, Удача, Чайка, Каратоп, Одиссей, Лабелла, Никита, Очарование – и те, коэффициент регрессии у которых значительно ниже единицы (bi = 0,37–0,62), отнесены к нейтральному типу, они слабо отзываются на изменение факторов среды. Выделены сорта картофеля, обладающие в условиях Приамурья комплексом хозяйственно полезных признаков: Ривьера, Витесса, Примадонна, Очарование, Кетский, Рябинушка и Чайка. The data of evaluation of 25 potato varieties according to the main economically valuable indicators (productivity and adaptability) of domestic and foreign selection in very diverse and rather complicated natural and climatic conditions of Priamurye are given. High yield of tubers was marked in the varieties Ketskiy (32.2 t/ha), Ocharovanie (30.3 t/ha), Riviera (29.7 t/ha), Vitessa (29.2 t/ha) and Ognivo (29.0 t/ha). 11 potato varieties with a high adaptive potential (Ka > 1) have been identified: Ketskiy, Ocharovanie, Riviera, Vitessa, Chajka, Primadonna, Ognivo, Ryabinushka, Rodrigo, Karatop and Impala. The regression coefficient (bi > 1), which characterizes the responsiveness of the variety to changes in natural and climatic conditions > 1, was observed in the intensive type potato variety Khozyain (bi = 1.20). It was established that the mid-ripening potato variety Vulkan is plastic with a regression coefficient close to one (bi = 0.90). Potato varieties of different ripeness groups: Ryabinushka, Vitessa, Udacha, Chajka, Karatop, Odissey, Labella, Nikita, Ocharovanie, and those, whose regression coefficient is below one (bi = 0.37–0.62), are classified as neutral type and respond poorly to changes in environmental factors. Potato varieties with a complex of economically useful traits have been identified: Riviera, Vitessa, Primadonna, Ocharovanie, Ketskiy, Ryabinushka and Chajka.

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