scholarly journals Stability Analysis for Yield and Its Component Characters in Blackgram [Vigna mungo (L.) Hepper]

2021 ◽  
Author(s):  
C. Shobanadevi ◽  
R. Elangaimannan ◽  
K. Vadivel
Keyword(s):  
Stability Analysis ◽  
Seed Yield ◽  
Climatic Conditions ◽  
Vigna Mungo ◽  
Indian Agriculture ◽  
Stable Performance ◽  
High Yielding Varieties ◽  
The Stability ◽  
High Seed Yield ◽  
Selection Of

Background: Blackgram [Vigna mungo (L.) Hepper] is an important pulse crop occupying a unique position in Indian agriculture. Blackgram provides a major share of the protein requirement of the vegetarian population of the country. The crop is resistant to adverse climatic conditions and improves the soil fertility by fixing atmospheric nitrogen in the soil. Phenotypically stable genotypes are of great importance because the environmental conditions vary from season to season and year to year. Stable performance of blackgram genotypes across contrasting environments is essential for the successful selection of stable and high yielding varieties. Methods: A total of seven genotypes of blackgram were evaluated one season (Rabi - 2019) in three environments to study the G x E interaction for three traits.Result: Based on the stability analysis of Eberhart and Russell model, two genotypes viz., MDU 1 and NRIB 002 were found to be stable across the environments for seed yield. These genotypes had high seed yield with a unity regression coefficient and deviation from regression equal to zero.

scholarly journals Stability analysis for seed yield and yield attributing traits in fennel (Foeniculum vulguare mill.)

1970 ◽  
pp. 74
Author(s):  
S L Sawargaonkar, A K Singh, S Sahu
Keyword(s):  
Stability Analysis ◽  
Seed Yield ◽  
Environmental Changes ◽  
Block Design ◽  
Genotypic Differences ◽  
Phenotypic Stability ◽  
G X E Interaction ◽  
Randomized Block Design ◽  
High Yielding Varieties ◽  
The Stability

Study was carried to evaluate phenotypic stability of 13 genotypes of fennel for seed yield and yield attributing traits. Out of 13 genotypes, three were checks (RF 205, RF 201 and local fennel) grown in Randomized Block Design (RBD) with three replications in each year. The significant genotypic differences were observed for all the characters suggesting differential responses of genotypes to the environmental changes. The results showed that among 13 genotypes RF 205 and Local fennel were found stable for seed yield/ plant, FNL 69 for days to flower, FNL 70 and RF 101 for primary branches/ plant, FNL 74 for umbels/ umbellet and FNL 71 for umbels/ plant. The results revealed that some reliable predictions about G x E interaction as well as its unpredictable components contributed significantly in determining the stability of genotypes. The wider stability recorded by RF 205, RF 201 and local fennel during all the three years which will be useful for development of high yielding varieties of fennel.

Experience of soybean cultivation in the Kaluga Department of Agricultural Machinery SC.

2020 ◽  
Author(s):  
N.V. Sergeev ◽  
◽  
A.Yu. Pivkin
Keyword(s):  
Seed Yield ◽  
Growing Season ◽  
Climatic Conditions ◽  
High Yield ◽  
Soybean Variety ◽  
Agricultural Machinery ◽  
Kaluga Region ◽  
High Seed Yield

The experience of cultivation of soybeans in SC "Agricultural machinery" of the Kaluga region on an area of 190 hectares shows that the soybean variety Alaska is sufficiently adapted to the soil and climatic conditions of this region, provides a high seed yield (up to 32 c / ha) and a high yield (up to 1344 kg / ha) relatively inexpensive protein. However, this variety has a long growing season (95-105 days) and therefore desiccation of crops is required for harvesting for seeds.

scholarly journals Creating and Characterisation of New Red Clover Variety ‘Jancis’/ Sarkanâ Âboliòa Ðíirnes ‘Jancis’ Izveidoðana Un Tâs Raksturojums

2014 ◽  
Vol 68 (3-4) ◽  
pp. 180-183
Author(s):  
Biruta Jansone ◽  
Sarmīte Rancāne ◽  
Pēteris Bērziņš ◽  
Aldis Jansons
Keyword(s):  
Seed Yield ◽  
Red Clover ◽  
Climatic Conditions ◽  
Family Selection ◽  
High Dry Matter ◽  
Bright Pink ◽  
Long Stem ◽  
Dark Green ◽  
High Seed Yield

Abstract The aim of this work was to develop a red clover variety adapted to agro-climatic conditions of Latvia, suitable for different requirements of forage producers, resistant to most widespread diseases and producing high seed yield annually. Medium late ripening diploid red clover variety ‘Jancis’ was created at the LLU Research Institute of Agriculture in long-term work carried out since 1985. After free pollination of best samples of red clover collections from the VIR (St. Petersburg), individual and family selection among hybrids were carried out for approximately 20 years. Finally, best breeding line Nr. 43047 was registered as a variety ‘Jancis’. The variety is characterised by good winter hardiness, high dry matter yield (10-12 t·ha-1) and good persistence in the sward - up to 3-4 years. The variety is characterised by a long stem (90-110 cm) with 8-9 internodes, dark green leaves with a distinctive brighter picture, medium length and width of medial leaflet, and bright pink flower heads. ‘Jancis’ has stable annual seed yield in the conditions of Latvia; under favourable conditions reaching 500- 600 kg·ha-1 seeds. Since 2010, the variety ‘Jancis’ has been included in the common Latvian and EU Plant Variety Catalogue.

On the Development of Transverse Ridges on Rock Glaciers

1989 ◽  
Vol 35 (121) ◽  
pp. 383-391 ◽  
Author(s):  
Deborah S. Loewenherz ◽  
Christopher J. Lawrence ◽  
Richard L. Weaver
Keyword(s):  
Stability Analysis ◽  
Newtonian Fluid ◽  
Lower Layer ◽  
Elastic Solid ◽  
Surface Region ◽  
Finite Amplitude ◽  
Climatic Conditions ◽  
Rock Glacier ◽  
Rock Glaciers ◽  
The Stability

AbstractThe stability of a low Reynolds number flow on an inclined plane is investigated with respect to modelling the initiation of transverse wave-like ridges which commonly occur on the surfaces of rock-glacier forms. In accordance with field observations indicating the presence of stratification in rock glaciers, two models of rock-glacier structure are considered, each stratified and possessing a lower layer which is treated as a Newtonian fluid. An upper, less compliant layer is treated, alternatively, as a Newtonian fluid of viscosity greater than that of the lower layer, or as an elastic solid under longitudinal compression induced by a decrease in the slope of the underlying incline. A linear stability analysis is used to examine the behaviour of each of the proposed models, and both are found to generate instabilities at wavelengths comparable to those associated with transverse surficial ridges on rock glaciers. The growth rates of a flow disturbance predicted by the viscous-stratified model appear to be too slow to account fully for the development of wave forms of finite amplitude, suggesting that other mechanisms are involved in the amplification of an initial disturbance. The results of the stability analysis of the elastic lamina model indicate that finite surficial ridges may develop on rock glaciers as a product of a buckling instability in the surface region if there is a decrease in the slope of the underlying incline. Both of the analyses illustrate that transverse ridges can occur on the surface of a rock glacier in the absence of any variations in debris supply to the system. The results further imply that the use of these features in the paleoreconstruction of Holocene climatic conditions must entail an assessment of the relative roles of external climatically driven forcingversusinternal Theologically derived instability.

scholarly journals Selection Of Local And Introduced Apricot Varieties

2021 ◽  
Vol 03 (01) ◽  
pp. 13-19
Author(s):  
Karshiev Alisher Esonovich ◽  
Keyword(s):  
Climatic Conditions ◽  
High Yielding Varieties ◽  
Selection Of

The purpose of this article is to select from the existing collection orchards of apricot such varieties that are resistant to natural and climatic conditions and possess valuable biological and economic characteristics, as well as to select and introduce promising high-yielding varieties.

scholarly journals Stability analysis of high yielding varieties of black gram (Vigna mungo L. hepper)

2016 ◽  
Vol 7 (1) ◽  
pp. 1
Author(s):  
N. Rita ◽  
S. Kigwie ◽  
K. Noren ◽  
N. Brojen ◽  
Kh. Pramesh
Keyword(s):  
Stability Analysis ◽  
Vigna Mungo ◽  
Black Gram ◽  
High Yielding Varieties

scholarly journals The studies on vegetation period and plant characters determining seed yield in soybean

2013 ◽  
Vol 34 (1) ◽  
pp. 113-127
Author(s):  
Jerzy Szyrmer
Keyword(s):  
Environmental Factors ◽  
Beneficial Effect ◽  
Protein Content ◽  
Seed Yield ◽  
Negative Correlation ◽  
Environmental Conditions ◽  
Vegetation Period ◽  
High Yielding Varieties ◽  
Selection Of ◽  
Better Than

12 Soybean strains bred by the author were tested with respect to their adaptation to different environments in the period 1975-1977. Better environmental conditions in Przecław (Rzeszów region) than in Radzików near Warsaw have beneficial effect on seed yield and the lenght of vegetation period in tested soybeans. Generaly, tested strains yielded better than population variety 'Warszawska' used as a check. Highest yield was produced by strain M-17/76 - 22,7 q/ha. This strain is already registered as a variety 'Ajma'. Seed yield, fat and protein content are determined by genotype and environmental factors. The negative correlation was found between seed yield, its components and the length of vegetation period. It suggests that selection of early and, at the some time, high yielding varieties can and should be done.

scholarly journals Creating a new variety of hop by clone selection method

2021 ◽  
Vol 22 (5) ◽  
pp. 698-705
Author(s):  
V. V. Leontieva
Keyword(s):  
Clonal Selection ◽  
Weather Conditions ◽  
Objective Data ◽  
New Variety ◽  
Growing Period ◽  
New Varieties ◽  
Stable Performance ◽  
Chuvash Republic ◽  
High Yielding Varieties ◽  
Selection Of

The article presents the results of breeding work for the creation of new high-yielding varieties of bitter-aromatic hops with a high content of alpha-acids carried out in 2004-2020 in the Chuvash Republic on gray forest soils. The work was done by individual clonal selection of the best hop plants from the collection nursery. Seven high-yielding breeding numbers with a high alpha-acid content were selected from the collection nursery. After passing through all the stages of study in each of the appropriate nurseries from seven numbers, two clones were selected to create new varieties. Data were obtained on the parameters of the initial clonal breeding material, depending on weather conditions and the age of plantings. The selected clones (1-17 bitter-aromatic type and 6-26 bitter type) correspond to the specified indicators: collection of raw hops is not less than 4.0 kg from a bush, the duration of the growing period is 100-120 days, the content of alpha acids is not less than 5.0 %. Documentation on clone 1-17 was sent to the State Variety Commission for registration of a new variety Salampi. The variety is characterized by stable performance and quality indicators. The productivity of the variety is 30.0 c/ha (4.0 kg/bush) with a content of alphaacids of 9.3 %. The Podvyazny standard variety has 26.4 c/ha (3.5 kg/bush), the content of alpha-acids is 8.8 %. Testing of clone 6-26 will be continued to obtain complete and objective data.

On the Development of Transverse Ridges on Rock Glaciers

1989 ◽  
Vol 35 (121) ◽  
pp. 383-391
Author(s):  
Deborah S. Loewenherz ◽  
Christopher J. Lawrence ◽  
Richard L. Weaver
Keyword(s):  
Stability Analysis ◽  
Newtonian Fluid ◽  
Lower Layer ◽  
Elastic Solid ◽  
Surface Region ◽  
Finite Amplitude ◽  
Climatic Conditions ◽  
Rock Glacier ◽  
Rock Glaciers ◽  
The Stability

AbstractThe stability of a low Reynolds number flow on an inclined plane is investigated with respect to modelling the initiation of transverse wave-like ridges which commonly occur on the surfaces of rock-glacier forms. In accordance with field observations indicating the presence of stratification in rock glaciers, two models of rock-glacier structure are considered, each stratified and possessing a lower layer which is treated as a Newtonian fluid. An upper, less compliant layer is treated, alternatively, as a Newtonian fluid of viscosity greater than that of the lower layer, or as an elastic solid under longitudinal compression induced by a decrease in the slope of the underlying incline. A linear stability analysis is used to examine the behaviour of each of the proposed models, and both are found to generate instabilities at wavelengths comparable to those associated with transverse surficial ridges on rock glaciers. The growth rates of a flow disturbance predicted by the viscous-stratified model appear to be too slow to account fully for the development of wave forms of finite amplitude, suggesting that other mechanisms are involved in the amplification of an initial disturbance. The results of the stability analysis of the elastic lamina model indicate that finite surficial ridges may develop on rock glaciers as a product of a buckling instability in the surface region if there is a decrease in the slope of the underlying incline. Both of the analyses illustrate that transverse ridges can occur on the surface of a rock glacier in the absence of any variations in debris supply to the system. The results further imply that the use of these features in the paleoreconstruction of Holocene climatic conditions must entail an assessment of the relative roles of external climatically driven forcing versus internal Theologically derived instability.

scholarly journals Analysis for Yield Stability of The Promising Cocoa Hybrids at Diverse Agro-climatic Conditions

2011 ◽  
Vol 27 (3) ◽  
Author(s):  
Agung Wahyu Soesilo
Keyword(s):  
Stability Analysis ◽  
Block Design ◽  
Suitable Condition ◽  
Genotype By Environment Interaction ◽  
Climatic Conditions ◽  
Yield Stability ◽  
Environment Interaction ◽  
Hybrid Variety ◽  
Stable Performance ◽  
Wet Climate

Analysis for yield stability on cocoa hybrids has objective to select high yielding hybrid with stable performance throughout the different agro-climatic conditions. These hybrids were crossed between selected clones of TSH 858, KEE 2, KW 162, KW 163 2, KW 165, ICS 13 and NIC 7. Fourteen hybrids were tested with control in a series of multilocation trial at the locations which were classified by altitude and climate differences such as lowland of dry climate in KP Kaliwining, lowland of wet climate in Kalitelepak Plantation, medium highland of wet climate in Jatirono Plantation and medium highland of dry climate in KP Sumber Asin. Trials were established at the randomizedcomplete block design with 4 blocks where in a plot planted 16-24 trees. Yield assessment was evaluated during 4 consecutive years of harvest by counting the number of pods per tree then converted using yield components and bean quality. Stability analysis was performed in linier basis for the yield. The combined analysis of variance performed a significant effect of interaction between hybrid and location within year that means an effect of genotype by environment interaction. Of the tested hybrids, TSH 858 x KEE 2, TSH 858 x KW 162, KW 162 x KEE 2 and the reciprocal performed higher value of the yield than control with deviation to regression (S2di) equal to zero and coefficient of regression (bi) equal to one except for KEE 2 x KW 162 with bi >1. It could be interpreted that those hybrids were stable to perform the yield and well adapted through the locations except for KEE 2 x KW 162 which specifically adapted to the more suitable condition. By respecting to the potency of yield, bean quality and vascular streak dieback resistance, TSH 858 x KW 162 has been released as new hybrid variety and renamed as ICCRI 06H. The hybrid was characterized by the yield potency of 1.99 kg/tree, a dry bean of 1.07 g and fat content of 54.3%. Key words: Stability analysis, yield, Theobroma cacao L., promising hybrids, agro-climatic condition.

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