scholarly journals Genotypic selection of advanced potato clones by REML/BLUP

2018 ◽  
Vol 36 (2) ◽  
pp. 265-270
Author(s):  
Giovani O Silva ◽  
Arione S Pereira ◽  
Fernanda Q Azevedo ◽  
Agnaldo DF Carvalho
Keyword(s):  
Yield Components ◽  
Tuber Yield ◽  
Block Design ◽  
Yield Traits ◽  
Tuber Weight ◽  
Randomized Complete Block Design ◽  
Commercial Cultivars ◽  
Average Tuber Weight ◽  
New Cultivars ◽  
Selection Of

ABSTRACT Potato genotypes were evaluated in their performance, according to the genotype values for tuber yield traits. The experiments were carried out in Canoinhas and Pelotas, Brazil, in spring 2014. Eleven advanced clones and two commercial cultivars (Agata and Asterix) (check cultivars) were evaluated. A randomized complete block design with four replicates was used. Plots were harvested 110 days after planting, and evaluated for tuber yield components. The data were submitted to joint deviance analyzes using the REML/BLUP method. Clones F102-22-07 and F32-02-06 stood out positively for tuber yield. F102-22-07 showed high marketable tuber yield and average tuber weight, while clone F32-02-06 exhibited high marketable and total tuber yield. The superiority of these advanced clones in relation to the check cultivars, suggests their potential to be evaluated in other environments, aiming their release as new cultivars.

scholarly journals Selection of potato clones for tuber yield, vine maturity and frying quality

2018 ◽  
Vol 36 (2) ◽  
pp. 276-281 ◽  
Author(s):  
Giovani O Silva ◽  
Arione S Pereira ◽  
Fernanda Q Azevedo ◽  
Agnaldo DF Carvalho ◽  
Jadir B Pinheiro
Keyword(s):  
Specific Gravity ◽  
Tuber Yield ◽  
Production Systems ◽  
Block Design ◽  
Vine Maturity ◽  
Selection Indices ◽  
Randomized Complete Block Design ◽  
Growing Conditions ◽  
Average Tuber Weight ◽  
Selection Of

ABSTRACT Development of Brazilian potato cultivars adapted to different growing conditions, production systems and regions of the country is very important to increase the competitiveness of the national potato chain. In this sense, the objective of this work was to verify the performance of advanced potato clones for tuber yield traits, vine maturity and frying quality. An experiment was carried out in Pelotas-RS in spring, 2014. A set of nine advanced potato clones and two control cultivars were evaluated using a randomized complete block design with four replicates. Plots consisted of single rows of 20 plants spaced at 0.80 m between rows and 0.30 m between plants. The data of each trait were submitted to the deviance analysis, estimated the genetic values and selected the best genotypes using selection indices of the sum of ranks and the lowest distance from the ideotype. Clones F131-08-26 and F183-08-01, and the check ‘Asterix’ were distinguished for yield of marketable tubers. F183-08-01 and the control stood out for specific gravity and average tuber weight. Clone F161-07-02 ranked among the best for specific gravity, frying color and vine maturity. F97-07-04 and F183-08-01 and the check ‘Asterix’ were the best according to the selection indices, however, would result in losses in the frying color and vine maturity traits.

scholarly journals Yield, frying quality, plant vigor, and maturity of potato clones

2019 ◽  
Vol 37 (1) ◽  
pp. 95-100 ◽  
Author(s):  
Giovani Olegario da Silva ◽  
Arione da S Pereira ◽  
Agnaldo DF Carvalho ◽  
Fernanda Q Azevedo
Keyword(s):  
Tuber Yield ◽  
Block Design ◽  
Environment Interaction ◽  
Tuber Weight ◽  
Higher Plant ◽  
Plant Vigor ◽  
Type Iv ◽  
Randomized Complete Block Design ◽  
Late Maturity ◽  
Average Tuber Weight

ABSTRACT The objective of this research was to evaluate advanced potato clones for tuber yield, frying quality, plant vigor, and maturity, grown from minituber seeds, and to assess correlations between these traits. Eight advanced potato clones of Embrapa Potato Breeding Program (F11-09-03, F05-11-03, F54-11-06, F141-11-01, C2718-12-09, C2718-24-09, C2743-09-09, and CL308) and three commercial cultivars (Agata, Asterix and BRSIPR Bel) were evaluated. Experiments were carried out in autumn 2017, in Canoinhas-SC and Pelotas-RS. A randomized complete block design with four replicates was used. We used tuber seeds type IV (minibubers). We evaluated plant vigor, maturity, yield and number of marketable tubers, yield and number of total tubers, average tuber weight, specific gravity, and frying color. Individual and joint variance analyses revealed significant differences (p <0.05) among genotypes for all traits at both locations. The GxE (genotype x environment) interaction was significant for all traits. For the two locations together, clones F05-11-03, C2718-12-09, C2718-24-09 and the control cultivar BRSIPR Bel showed higher marketable tuber yields. The first two clones also showed tubers with high average tuber weight. Clone F54-11-06 showed the later maturity at both locations. Regarding the frying quality characteristics, only clone F141-11-01 showed a pattern comparable to that of the control cultivar Asterix. Also, clones with higher plant vigor had higher tuber yield, but late maturity. Frying quality traits were not correlated between them and among other traits.

scholarly journals Selection of Canadian potato clones for agronomic and frying quality traits

2019 ◽  
Vol 37 (4) ◽  
pp. 423-428 ◽  
Author(s):  
Giovani Olegario da Silva ◽  
Arione da S Pereira ◽  
Fernanda Q Azevedo ◽  
Agnaldo DF de Carvalho ◽  
Jadir B Pinheiro
Keyword(s):  
Analysis Of Variance ◽  
Tuber Yield ◽  
Block Design ◽  
Quality Traits ◽  
Short Cycle ◽  
Plant Vigor ◽  
Randomized Complete Block Design ◽  
Growing Conditions ◽  
New Cultivars ◽  
Selection Of

ABSTRACT The demand for cultivars suitable for processing, especially as frozen French fries, is increasing in Brazil. The Canadian expertise is high regarding the development of cultivars with processing characteristics; however, the growing conditions in Canada are quite different from those observed in Brazil. Thus, the aim of this work was to evaluate the performance of Canadian potato clones for their tuber yield, frying quality, plant vigor, and plant cycle, as potential new cultivars or to be used as a new source of variability for crosses. The experiments were conducted in Pelotas-RS and Canoinhas-SC, Brazil, in spring 2017. A set of 12 advanced Canadian potato clones from the Centre de Recherche Les Buissons, QB, Canada, were compared to three control cultivars used for processing. A randomized complete block design with three replicates, with two rows of 20 plants each per plot was used. Tuber yield, frying quality, plant vigor, and plant cycle traits were evaluated. Data were submitted to analysis of variance, grouping of means, and selection gains. It is possible to select genotypes with higher tuber yield and better frying quality, but it is difficult to add also a short cycle. In an attempt to select productive genotypes, with good frying quality, a not so long cycle, and vigor at least equivalent to the control cultivars, clones 15 and 16 were the best at both sites.

scholarly journals Selection indexes in the simultaneous increment of yield components in topcross hybrids of green maize

2020 ◽  
Vol 55 ◽  
Author(s):  
Willame dos Santos Candido ◽  
Caique Machado e Silva ◽  
Maraiza Lima Costa ◽  
Bruna Elaine de Almeida Silva ◽  
Beatriz Lima de Miranda ◽  
...  
Keyword(s):  
Yield Components ◽  
Block Design ◽  
Yield Traits ◽  
Genetic Gains ◽  
Economic Weights ◽  
Randomized Complete Block Design ◽  
Selection Indexes ◽  
Best Fit ◽  
Topcross Hybrids ◽  
Selection Of

Abstract: The objective of this work was to define the most suitable selective strategy for the simultaneous increment of yield components of green maize, by comparing three selection indexes weighted by economic weights and by the REML/BLUP method, in the assessment of predicted genetic gains for traits of interest. An experiment with 75 topcross hybrids from partially inbred S1 lines of green maize was carried out in Jataí, in the state of Goiás, Brazil, using a randomized complete block design, with four replicates. The following yield traits were evaluated: straw ears and commercial ears, grain mass, ear length, ear diameter, and number of ear rows. The selection indexes of Smith and Hazel, Williams, and Mulamba & Mock were applied and weighted for four economic weights (1, CVg, CVg/CVe, and h2). Among the tested selection indexes, those of Williams and Mulamba & Mock are the best-fit ones for the selection of topcross hybrids of green maize, as they provide positive and more balanced selection gains for all evaluated traits. The REML/BLUP method shows better predicted genetic gains than those achieved by the three selection indexes, besides being efficient for the selection of topcross hybrids of green maize.

scholarly journals Evaluation of Yield and Yield Components of Two Potato Cultivars in Khorasan Razavi Province of Iran

2019 ◽  
Vol 39 (4) ◽  
pp. 343
Author(s):  
Setareh Foroghian ◽  
Mohammad Reza Asgharipour ◽  
Mehdi Ghiafeh Davoodi
Keyword(s):  
Yield Components ◽  
Tuber Yield ◽  
Block Design ◽  
Potato Cultivars ◽  
Tuber Number ◽  
Tuber Weight ◽  
Stem Number ◽  
Randomized Complete Block Design ◽  
Yield And Yield Components ◽  
Split Plot

In order to study the yield and yield components of two potato cultivars, an experiment was conducted as a split plot based on a randomized complete block design with three replicates. The experiment was performed in two locations, Jolgeh-Rokh district, and Fariman city, in professional farmers’ fields in Khoarasan Razavi province. The main plots consisted of two potato cultivars, Agria and Fontane cultivars (medium maturing), which were identified as the main cultivars used in chips production factories in the Province. Our results showed higher potential of Agria cultivar for production of stems per plant compared to Fontana cultivar. Both stem number and tuber number per plant along with tuber weight and tuber yield were higher in Fariman location than in Jolgeh-Rokh.

scholarly journals Performance of potato (Solanum tuberosum L.) varieties with and without straw-mulch at Shankharapur, Kathmandu, Nepal

2020 ◽  
Vol 3 (2) ◽  
pp. 193-204
Author(s):  
Kalyani Shrestha ◽  
Shrawan Kumar Sah ◽  
Reeti Singh ◽  
Yam Narayan Devkota
Keyword(s):  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Block Design ◽  
Medium Size ◽  
Tuber Weight ◽  
Potato Varieties ◽  
Straw Mulch ◽  
Crop Varieties ◽  
Randomized Complete Block Design ◽  
Benefit Cost

The suitability of crop varieties in a particular location determines the productivity of crops. A field experiment was conducted from February to May 2020 at Shankharapur, Kathmandu, Nepal to evaluate the growth and productivity of potato varieties with and without mulch. Five potato varieties (Cardinal, Janakdev, Khumal Bikas, MS- 42.3, Panauti Local) were evaluated under straw-mulch and no-mulch conditions. The treatments were arranged in two factorial Randomized Complete Block Design (RCBD) with 3 replications. The results revealed that the highest tuber yield was produced by Janakdev (34.29 t ha-1) followed by Panauti Local (29.52 t ha-1). Similarly, straw-mulch gave higher yield (25.9 t ha-1) as compared with no mulch condition (21.73 t ha-1). The higher tuber yield in the Janakdev and Panauti Local was because of higher tuber weight per hill, higher number and weight of medium size (50 -100 g) and oversize (> 100 g) tuber per hill. Similarly, higher yield in straw mulch was due to higher number and weight of tuber per hill. Higher gross return, net return was observed and the benefit cost ratioin varieties Janakdev (4.08) and Panauti Local (3.53) and rice straw mulch (2.88). Therefore, potato varieties Janakdev and Panauti Local with straw mulch are most suitable for Kathmandu like climate for improving productivity and profitability.

scholarly journals Effect of nitrogen fertilization and microbial preparations on potato yielding

2014 ◽  
Vol 60 (No. 8) ◽  
pp. 379-386 ◽  
Author(s):  
M. Kołodziejczyk
Keyword(s):  
Nitrogen Fertilization ◽  
Yield Components ◽  
Field Experiments ◽  
Tuber Yield ◽  
Coefficient Of Determination ◽  
Soil Conditions ◽  
Control Analysis ◽  
Tuber Weight ◽  
Marketable Yield ◽  
Average Tuber Weight

The effect of nitrogen fertilization and microbial preparations on yielding and development of potato tuber yield components were assessed in field experiments conducted under soil conditions of Luvic Chernozem. The factors of the experiment were nitrogen fertilization levels: 0, 60, 120 and 180 kg N/ha and the following preparations: BactoFil B10, effective microorganisms and UG<sub>max</sub> soil fertilizer. Nitrogen fertilization caused a significant increase in marketable yield of potato tubers. Yield increments on individual fertilizer treatments ranged from 66% to 140%. An evident effect of this factor was also visible regarding the yield components values. Increase in the number of main stems per 1 m<sup>2</sup> under the influence of growing nitrogen doses occurred from the fertilization level 120 kg N/ha, whereas the number of tubers per 1 stem increased only to the level of 60 kg N/ha. Each nitrogen dose applied within the range to 180 kg N/ha caused a marked increase in an average tuber weight. Conducted investigations demonstrated an unfavourable effect of microbial preparations on the marketable crop yield of tubers and formation of yield components. On the objects where microbial preparations were applied, the marketable yield was lower by 1.5 to 2.3 t/ha than in the control. Analysis of linear regression revealed occurrence of significant dependencies between the total tuber yield and the values of individual yield components. The relationships were the most visible for an average tuber weight formation as evidenced by the value of coefficient of determination&nbsp;(R<sup>2</sup> = 0.983).

scholarly journals Effect of Integrated Nutrient Management on Plant Growth and Tuber Yield of Dahlia (Dahlia variabilis) cv. Kenya White

2021 ◽  
pp. 80-84
Author(s):  
T. Raghunandan ◽  
J. P. Collis ◽  
S. Saravanan ◽  
K. S. Barman
Keyword(s):  
Nutrient Management ◽  
Tuber Yield ◽  
Block Design ◽  
Tuber Weight ◽  
Integrated Nutrient Management ◽  
Spring Season ◽  
Yield Attributes ◽  
Randomized Complete Block Design ◽  
Number Of Leaves ◽  
Number Of Branches

The experiment was carried out at Experimental field, Department of Horticulture, Sam Higginbottom Institute of Agriculture Technology and Sciences [formerly known as Allahabad Agriculture Institute Deemed University, AAI-DU] during the Spring season 2014-2015. The experiment consists of Thirteen treatments viz., (T0) Control-RDF (100:120:100 N P K  kg ha-1,), (T1) 75% RDF + AZ@ 2.5 kg ha-1,, (T2) 75% RDF + FYM @ 10 ton ha-1, (T3) 75% RDF + VC@ 10 ton ha-1, (T4) 75% RDF + AZ @ 2.5 kg/ha +FYM @ 10 ton ha-1+VC @ 10 ton ha-1, (T5) 50% RDF +AZ@ 2.5 kg ha-1, (T6) 50% RDF + FYM@ 10 ton ha-1, (T7) 50% RDF + VC@ 10 ton ha-1, (T8) 50% RDF +  AZ @ 2.5 kg ha-1+FYM @ 10 ton ha-1+VC @ 10 ton ha-1, (T9) 25% RDF + AZ@ 2.5 kg ha-1, (T10) 25% RDF + FYM@ 10 ton ha-1, (T11) 25% RDF + VC@ 10 ton ha-1+, (T12) 25% RDF +  AZ @ 2.5 kg ha-1+FYM @ 10 ton ha-1+VC @ 10 ton ha-1. The treatments were replicated thrice in a Randomized Complete Block Design. The results revealed that Plants treated with 75% RDF + AZ @ 2.5 kg/ha +FYM @ 10 t/ha +VC @ 10 t/ha (T4) significantly recorded maximum vegetative and Tuber yield attributes like plant height (91.87 cm), plant spread (92.38 cm), Number of Branches per plant (7.27), number of leaves per plant (26.53), number of tubers per plant (4.80), maximum tuber weight (958.53) and Maximum tuber yield per plant was recorded in T4 (75% RDF + AZ @ 2.5 kg/ha +FYM @ 10 t/ha +VC @ 10 t/ha) (43.33g) followed by T3 (75% RDF + VC @ 10 t/ha) (40.95g).

scholarly journals Correlation coefficients, path analysis and disease reaction between yield and yield components in Potato (Solanum tuberosum L.) genotypes in Bale, South Eastern Ethiopia

2016 ◽  
Vol 3 (3) ◽  
pp. 293
Author(s):  
Getachew Workalemahu ◽  
Wassu Mohammed
Keyword(s):  
Path Analysis ◽  
Indirect Effects ◽  
Yield Components ◽  
Tuber Yield ◽  
Phenotypic Correlation ◽  
Tuber Weight ◽  
Direct And Indirect Effects ◽  
Marketable Tuber ◽  
Positive Direct ◽  
Average Tuber Weight

Study on the relationships between yield and its components will improve the efficiency of breeding programmes by determining appropriate selection criteria. An investigation was carried out on 24 potato genotypes to find out the association among yield, yield components and their direct and indirect effects on tuber yield of potato. The experiment was laid out in randomized complete block design with three replications at Sinana Agricultural Research Center. The association was analyzed by correlation coefficient, and further subjected to path analysis to estimate direct and indirect effects of each character on tuber yield. Positive and significant genotypic and phenotypic correlation were found between total tuber yield and marketable tuber yield (rg=0.99), leaf area index (rg=0.82), plant height(rg=0.56), stem number per plant(rg=0.56), average tuber weight (rg=0.74)  and biomass yield (rg=0.69). Path analysis of tuber yield and its components shows that marketable tuber yield and average tuber weight had maximum positive direct genotypic and phenotypic effect on total tuber yield indicating their importance in selection for tuber yield improvement.

scholarly journals Genetic parameters associated with tuber yield and tuber appearance traits of potatoes in early generations of selection

2016 ◽  
Vol 20 (2) ◽  
pp. 26-36
Author(s):  
L. R. Terres ◽  
E. A. Lenz ◽  
F. F. Cima ◽  
G. O. Silva ◽  
A. Da S. Pereira
Keyword(s):  
Genetic Parameters ◽  
Tuber Yield ◽  
Block Design ◽  
Tuber Number ◽  
Moderate Intensity ◽  
Tuber Weight ◽  
Skin Texture ◽  
Seedling Generation ◽  
Average Tuber Weight ◽  
General Appearance

The knowledge of genetic parameters of traits, in early generation selection, is important for breeding programs to define strategies and obtain success. The objective of this study was to estimate genetic parameters of yield components and tuber appearance traits in early selection generations of potatoes and their implications in the selection process. Twelve segregating potato families originated from crosses between two groups of parents of the Embrapa potato breeding program were evaluated. Group 1 was formed by foreign potato parents: Pukara, Asterix, Rioja, and Caesar; and group 2, by national parents: Eliza, C1730-07-94, and C1750-15-95. The experiment was conducted in autumn seasons of 2012 and 2013. A randomized complete block design with three replications was used. Considering all traits together, Pukara/Eliza, Asterix/Eliza, and Rioja/Eliza families had the highest means on a large number of tuber appearance and yield traits. The results of this study suggest that selection may be applied with mild to moderate intensity in the seedling generation for skin texture, tuber general appearance, tuber number, average tuber weight and total tuber yield, based on the moderate to high heritability estimated on the seedling generation. The highest selection gains were for skin texture, tuber general appearance, tuber number, average tuber weight and total tuber yield.

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