scholarly journals Yield Stability Analysis of Elite Irish Potato (<i>Solanum tuberosum </i>L.) Varieties in Western Ethiopia

2021 ◽  
Vol 6 (1) ◽  
pp. 6
Author(s):  
Tilahun Wondimu Fufa ◽  
Abraham Negara Fufa
Keyword(s):  
Solanum Tuberosum ◽  
Stability Analysis ◽  
Irish Potato ◽  
Yield Stability ◽  
Western Ethiopia

scholarly journals CHARACTERS ASSOCIATED WITH YIELD STABILITY OF IRISH POTATO GENOTYPES IN GEORGIA

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1173a-1173
Author(s):  
H.L. Bhardwaj ◽  
A.S. Bhagsari ◽  
K.G. Haynes
Keyword(s):  
Solanum Tuberosum ◽  
Leaf Area Index ◽  
Leaf Area ◽  
Irish Potato ◽  
Yield Stability ◽  
Regression Coefficients ◽  
Green Mountain ◽  
Phenotypic Stability ◽  
Area Index ◽  
Final Harvest

Three experiments, each with 100 potato (Solanum tuberosum L.) genotypes, were conducted using triple lattice designs from 1988-1989. The use of lattice designs did not improve the efficiency of these experiments over randomized complete blocks. The phenotypic stability of tuber yields of 91 genotypes, common to three experiments, was measured by regression of genotype means over environmental means. Regression coefficients indicated that 60 days after planting (DAP), genotypes adapted to high yielding environments (b > 1), had significantly higher tubers/plant, leaf area index, and yield/plant, as compared to genotypes suited to low-yielding environments. At final harvest, approximately 100 DAP, genotypes specifically adapted to high yielding environments had significantly higher tubers/plant and yield/plant than genotypes adapted to low yielding environments (b < 1). Green Mountain, Kennebec, and Norchip were adapted to high-yielding environments whereas La Chipper, Ontario, and Superior were adapted to low-yielding environments.

scholarly journals Non-Parametric Stability Analysis of Tuber Yield in Potato (Solanum tuberosum L.) Genotypes

2018 ◽  
Vol 10 (28) ◽  
pp. 50-63
Author(s):  
mina moghaddaszadeh ◽  
Rasool Asghari Zakaria ◽  
Davoud Hassanpanah ◽  
naser zare ◽  
◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Stability Analysis ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Parametric Stability ◽  
Non Parametric

scholarly journals Analysis of Phenotypic Stability in 25 Cowpea Genotypes Across Six Environments

2019 ◽  
Author(s):  
Tony Ngalamu ◽  
Silvestro Kaka Meseka ◽  
Beatrice Elohor Ifie ◽  
Kwadwo Ofori ◽  
John Saviour Yaw Eleblu
Keyword(s):  
Stability Analysis ◽  
Analysis Of Variance ◽  
Vigna Unguiculata ◽  
Parametric Analysis ◽  
Yield Stability ◽  
Phenotypic Stability ◽  
Combined Analysis ◽  
Graphical Approach ◽  
Coefficient Of Variability ◽  
Main Effects

Twenty-five cowpea (Vigna unguiculata L) genotypes were evaluated across six contrasting environments for phenotypic yield stability. Combined analysis of variance revealed significant differences among the genotypes and the main effects. A1B×D, BC×M, L1B×M, A1B×M, and BA×I were the best performing and stable genotypes. The non-parametric analysis showed that genotype IT93K-503-1 had the highest yield and BC×D had the lowest yield. Shukla stability analysis revealed Beledi A and Dan lla as the most stable across test environments and genotypes A1B×D, BC×M and BA×I were good performers. The coefficient of variability graphical approach showed that genotypes BC×I, A1B×M, A1B×D, Dan lla, TA×M, Mouride, L1B×I, BC×M and L1B×D were high yielding. This implies they would do well across the testing sites. However, genotype IT93K-503-1 should be promoted for cultivation in drought-prone environments.

Yield stability analysis of maize hybrids using the self-organizing map of Kohonen

Euphytica ◽  
2020 ◽  
Vol 216 (10) ◽  
Author(s):  
Luiz Rafael Clovis ◽  
Carlos Alberto Scapim ◽  
Ronald José Barth Pinto ◽  
Marcelo Vivas ◽  
Janeo Eustáquio de Almeida Filho ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Yield Stability ◽  
The Self ◽  
Self Organizing Map ◽  
Maize Hybrids ◽  
Self Organizing

YIELD STABILITY ANALYSIS OF LATE BLIGHT RESISTANT POTATO SELECTIONS

2008 ◽  
Vol 44 (2) ◽  
pp. 145-155 ◽  
Author(s):  
J. M. K. MULEMA ◽  
E. ADIPALA ◽  
O. M. OLANYA ◽  
W. WAGOIRE
Keyword(s):  
Stability Analysis ◽  
Late Blight ◽  
Tuber Yield ◽  
Agricultural Research ◽  
Quantitative Resistance ◽  
Yield Stability ◽  
High Yield ◽  
Specific Information ◽  
Variable Response ◽  
Yield Data

SUMMARYPotato is an important source of food and income in the highlands of East Africa. Identification of superior genotypes for improved agronomic characteristics will enhance tuber yield. Seven promising clones from population B potato selections (quantitative resistance to late blight) obtained from the International Potato Center, two genotypes from population A (qualitative resistance) and three control cultivars were evaluated for three cropping seasons at four locations in western Uganda in order to determine performance and yield stability. The additive main effects and multiplicative interactive (AMMI) model was used for the analysis. The analysis of variance of yield data for genotypes × locations, genotypes × seasons and genotypes × locations × seasons was significant (p < 0.05) showing the variable response of genotypes and the need for stability analysis. The AMMI statistical model showed that the most stable genotypes were 392618.250 (B5) and 392127.270 (B6) (high yield) and 392618.256 (B1), 391049.255 (B2) and 392127.256 (B7) (low yield) and had negligible interactions with the environments. Across environments, the ranking of genotypes for tuber yield was not consistent. The clones 381471.18 (A2), 387121.4 (A1) and cultivar Victoria had high average yields, but these yields were below average in a few environments. Selective deployment of cultivars can improve tuber yield in the highland tropics.Note: Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation for endorsement by the US Department of Agriculture, Makerere University or Kachwekano Agricultural Research and Development Center.

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