scholarly journals Evaluation of genetic variability using full-sib families within and between the BS10 and BS11 synthetic maize (Zea mays L.) populations for the original and tenth cycle of selection

1997 ◽  
Author(s):  
Todd Eugene Frank
Keyword(s):  
Zea Mays ◽  
Genetic Variability ◽  
Zea Mays L ◽  
Sib Families

scholarly journals Genetic variability and traits association in maize (Zea mays L.) varieties for growth and yield traits

Heliyon ◽  
2021 ◽  
pp. e07939
Author(s):  
Bigul Thapa Magar ◽  
Subash Acharya ◽  
Bibek Gyawali ◽  
Kiran Timilsena ◽  
Jharana Upadhayaya ◽  
...  
Keyword(s):  
Zea Mays ◽  
Genetic Variability ◽  
Zea Mays L ◽  
Growth And Yield ◽  
Yield Traits

scholarly journals Genetic Variability of Maize (Zea mays L.) Genotypes on Some Yield and Yield Components at Haramaya, Eastern Ethiopia

2020 ◽  
Vol 8 (9) ◽  
pp. 1840-1845
Author(s):  
Mekuannet Belay Kebede ◽  
Degefa Gebissa
Keyword(s):  
Zea Mays ◽  
Genetic Variability ◽  
Zea Mays L ◽  
Genotype 1 ◽  
Eastern Ethiopia ◽  
Maize Production ◽  
Maize Genotypes ◽  
Coefficients Of Variation ◽  
Study Results ◽  
Almost All

Genetic improvement in components of economic importance along with maintaining a sufficient amount of variability is always the desired objective in the any maize (Zea mays L.) breeding program which will be handled under the conditions of Haramaya, Eastern Ethiopia. Therefore, an experiment was conducted using (27) and (3) check/control varieties to determine the genetic variability of maize genotypes at Haramaya, eastern Ethiopia. The study results revealed that significantly the tallest plant heights for (PH) were recorded from (3) (170 cm) and (18) (167.5 cm) genotypes whereas the shortest PH were recorded from (13) (117.5 cm) and (23) genotypes (120 cm). Good plant aspects (PA) were obtained from genotype 12, 22 and 26 (PA-1.5) and poor PA were attained from genotype 1 (PA-2.5). Besides, genetic and phenotypic variances were estimated for seven components. The highest genotypic coefficients variation (GCV) and phenotypic coefficients of variation (PCV) were calculated from grain yield (GY – 23.39%). Comparatively the higher GY were attained from the genotypes of 3, 9 and 12. It can be concluded that almost all components of the PCV are greater than the GCV. Superior selected genotypes are recommended to the researchers /breeders to develop disease resistant and high yielder varieties to increase maize production by farmers under Haramaya and other similar agroecologies.

scholarly journals Selection of best lines and hybrids on the basis of genetic variability analysis in Maize (Zea mays L.)

2020 ◽  
Vol 5 (01) ◽  
pp. 45-49
Author(s):  
Ankit Kumar ◽  
Amit Tomar
Keyword(s):  
Zea Mays ◽  
Genetic Variability ◽  
Grain Yield ◽  
Plant Height ◽  
Zea Mays L ◽  
Grain Weight ◽  
Variability Analysis ◽  
Selection Of

The results revealed that parents namely, TSK-10, TSK-27, New Blue-II, Kurara and TSK-109 were found highly genetic diverse for days to 50% tasseling, days to 50% silking, days to 755 dry husk. The parents namely, TSK-109, Kurara, New Blue-II and TSK-10 were found highly genetic diverse for plant height (cm), cob height, number of cobs per plant and number of grains per cob. The parents namely, Kurara, TSK-109, TSK-10, New Blue-II and TSK-27 were found highly genetic diverse for shelling percentage, grain yield per plant, grain yield per cob and 100-grain weight.

scholarly journals Corrigendum to “Genetic variability and traits association in maize (Zea mays L.) varieties for growth and yield traits”

Heliyon ◽  
2021 ◽  
pp. e08144
Author(s):  
Bigul Thapa Magar ◽  
Subash Acharya ◽  
Bibek Gyawali ◽  
Kiran Timilsena ◽  
Jharana Upadhayaya ◽  
...  
Keyword(s):  
Zea Mays ◽  
Genetic Variability ◽  
Zea Mays L ◽  
Growth And Yield ◽  
Yield Traits

scholarly journals Evaluation and comparison of protein composition and quality in half-sib families of opaque-2 maize (Zea mays L.) from Argentina

Agriscientia ◽  
2019 ◽  
Vol 36 (1) ◽  
pp. 39
Author(s):  
Pablo Sebastián Mansilla ◽  
María Cristina Nazar ◽  
Gabriela Teresa Pérez
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Protein Composition ◽  
Font Size ◽  
Sib Families

<p class="western" style="margin-bottom: 0cm; line-height: 150%;" align="justify"><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;">El objetivo fue caracterizar y comparar la composición proteica de familias de medios hermanos de maíz </span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><em>opaco-2</em></span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"> de Argentina mediante prueba de progenie. Se determinó dureza del grano, contenido de fracciones proteicas, aminoácidos y digestibilidad </span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><em>in vitro</em></span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"> de proteína (PD) de la harina integral. Se usaron genotipos no-opacos como control. El contenido total de proteína de los genotipos </span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><em>o2</em></span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"> correlacionó negativamente con la dureza del grano (</span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><em>r</em></span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;">=-42 en 2012 y </span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><em>r</em></span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;">=-0.32 en 2013) y no mostró diferencias significativas respecto a los genotipos no-opacos; sin embargo, los genotipos </span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><em>o2</em></span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"> mostraron mayor PD, menor proporción de zeína y mayor de albúminas, globulinas y glutelinas. Las progenies </span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><em>o2</em></span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"> mostraron mayor contenido de lisina, isoleucina y treonina en comparación con el maíz blanco. El contenido de lisina, el de fracciones proteicas y la PD mostraron una mayor contribución de la varianza genética, a pesar de la alta contribución de la varianza del año observada en el contenido total de proteínas. </span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;">Las diferencias mostradas por los perfiles de proteínas de las progenies permitirán identificar genotipos </span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><em>o2</em></span></span></span><span style="color: #222222;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"> con menor nivel de zeína y mayor contenido de lisina. Esto permitirá continuar con la selección y la mejora genética para obtener variedades con calidad proteica superior. </span></span></span></p>

Sign in / Sign up

Export Citation Format

Share Document