Genetic variation for cold tolerance in selected and unselected maize populations

1984 ◽  
Vol 8 ◽  
pp. 143-151 ◽  
Author(s):  
K.R. Keim ◽  
C.O. Gardner
Keyword(s):  
Genetic Variation ◽  
Cold Tolerance ◽  
Maize Populations

Cold Tolerance in Adapted Maize Populations 1

Crop Science ◽  
1972 ◽  
Vol 12 (4) ◽  
pp. 466-469 ◽  
Author(s):  
J. J. Mock ◽  
S. A. Eberhart
Keyword(s):  
Cold Tolerance ◽  
Maize Populations

scholarly journals Inter- and intra-population variation of local maize (Zea mays L.) populations from Slovakia and Czech Republic

2008 ◽  
Vol 43 (No. 1) ◽  
pp. 7-15 ◽  
Author(s):  
P. Múdry ◽  
J. Kraic
Keyword(s):  
Zea Mays ◽  
Genetic Variation ◽  
Czech Republic ◽  
Population Variation ◽  
Polymorphic Loci ◽  
Maize Populations ◽  
Expected Heterozygosity ◽  
Isoenzyme Polymorphism ◽  
New Alleles

Evaluation of genetic variation was performed within 62 local maize populations originating from Slovakia and Czech Republic. In total 48 alleles at 22 analyzed isoenzyme loci with an average of 2.2 alleles per locus were revealed. The percentage of polymorphic loci ranged from 14% to 59% and the frequencies of detected alleles varied from null to four per locus. No polymorphism was detected at the loci <i>Dia2</i>, <i>Got3</i>, <i>Mdh4</i>, <i>Mmm</i>, and <i>Pgm1</i>. The highest number of alleles (four) was detected at loci <i>Acp1</i>, <i>Cat3</i>, <i>Pgm2</i>. No new alleles were identified, nevertheless the frequency of seven alleles was only about 1%. The expected heterozygosity ranged from null to 0.492 with an average of 0.197. The revealed isoenzyme polymorphism confirmed that all analyzed populations were heterogeneous and as many as 17 of them were completely heterogeneous. None of the analyzed populations was identical in the frequency of alleles at all 22 analyzed loci.

Genetic variation and QTL mapping for cold tolerance in a chrysanthemum F1 population at different growth stages

Euphytica ◽  
2019 ◽  
Vol 215 (5) ◽  
Author(s):  
Ni Ao ◽  
Jie Ma ◽  
Tingting Xu ◽  
Jiangshuo Su ◽  
Xincheng Yang ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Qtl Mapping ◽  
Cold Tolerance ◽  
Growth Stages ◽  
Different Growth Stages

Genetic variation in growth, cold tolerance and coppicing inEucalyptus dunniiin trials in Hunan, China

2012 ◽  
Vol 75 (4) ◽  
pp. 215-224 ◽  
Author(s):  
Bohai Li ◽  
Roger Arnold ◽  
Jianzhong Luo ◽  
Zhihui Li
Keyword(s):  
Genetic Variation ◽  
Cold Tolerance

scholarly journals Relationships of stay green trait in maize

Genetika ◽  
2002 ◽  
Vol 34 (1) ◽  
pp. 33-40 ◽  
Author(s):  
Goran Bekavac ◽  
Milisav Stojakovic ◽  
Mile Ivanovic ◽  
Djordje Jockovic ◽  
Nenad Vasic ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Path Coefficient ◽  
Path Coefficient Analysis ◽  
Stay Green ◽  
Green Is ◽  
Maize Populations ◽  
Drought Conditions ◽  
Vegetative Characters ◽  
Stalk Lodging ◽  
Relationship Of

Genetic variation for stay green character has been exploited in maize improvement mainly in the light of selecting high yielding rather then typical stay green genotypes. Stay green is an indicator of good plant health later in the season, reduced progressive senescence, tolerance to post-flowering drought and stalk lodging, what ensure superiority of stay green genotypes in comparison to non-stay green ones, especially in drought conditions. The objective of the study was to examine relationship of stay green trait with some vegetative characters in two genetically broad based maize populations. The most consistent correlations with stay green were established for leaf and stalk water content, which has been confirmed by path-coefficient analysis.

scholarly journals Genetic variation of phytate and ionorganic phosphorus in maize population

Genetika ◽  
2009 ◽  
Vol 41 (1) ◽  
pp. 107-115 ◽  
Author(s):  
Snezana Mladenovic-Drinic ◽  
Danijela Ristic ◽  
Slobodanka Sredojevic ◽  
Vesna Dragicevic ◽  
Dragana Ignjatovic-Micic ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Genetic Variability ◽  
Protein Content ◽  
Agronomic Traits ◽  
Inorganic Phosphorus ◽  
High Concentration ◽  
Positive Correlation ◽  
Maize Population ◽  
Maize Populations ◽  
Phytate Content

Analysis of 60 maize populations was conducted to identify genotypes that had either low or high concentration of phytate. Genetic variability in seed phytate content was observed, with values ranging from 1,147 to 4, 13 g kg-1. Inorganic phosphorus (Pi) concentrations were between 0, 35 and 1, 29 and averaged 0, 65 g kg-1. Three groups of populations were identified as having low, intermediate and high phytate content. The low phytate concentration was measured in eight, intermediate in 25 and high in 27 populations. Positive correlation was found between phytate and protein. Population 216 had the lowest phytate concentration of 1, 14 gkg-1, and a Pi concentration 40% greater than Pi mean but lower than average protein content. This population will be used for further breeding genotypes with low phytate content and good agronomic traits.

Low genetic variation in cold tolerance linked to species distributions in butterflies

2013 ◽  
Vol 28 (3) ◽  
pp. 495-504 ◽  
Author(s):  
Jonathan M. P. Davis ◽  
Belinda van Heerwaarden ◽  
Carla M. Sgrò ◽  
Jennifer A. Donald ◽  
Darrell J. Kemp
Keyword(s):  
Genetic Variation ◽  
Cold Tolerance ◽  
Species Distributions
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