Morphological characterization and genetic diversity analyses of plant traits contributed to grain yield in maize (Zea mays L.)

2020 ◽  
Vol 25 (1) ◽  
pp. 2047-2059
Author(s):  
S. Islam ◽  
A. Ferdausi ◽  
A. Y. Sweety ◽  
A. Das ◽  
A. Ferdoush ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Zea Mays ◽  
Grain Yield ◽  
Zea Mays L ◽  
Plant Traits ◽  
Morphological Characterization

Analysis of biological traits contributing to grain yield of short-to mid-season corn (Zea mays L.) hybrids

1991 ◽  
Vol 71 (2) ◽  
pp. 535-541 ◽  
Author(s):  
L. M. Dwyer ◽  
H. N. Hayhoe ◽  
W. Royds ◽  
R. I. Hamilton
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Zea Mays L ◽  
Plant Traits ◽  
Development Rate ◽  
Biological Traits ◽  
Multiple Linear Regressions ◽  
Relative Contribution ◽  
Time Required ◽  
Linear Regressions

Biological traits related to grain yield of short- to mid-season corn (Zea mays L.) hybrids were identified, and an approach to determine their relative contribution to grain yield was demonstrated. Nine hybrids with maturity ratings of 2350–2800 corn heat units (CHU) were grown at three sites. Twelve plant-scale traits were measured which reflected development rate, vegetative growth and partitioning to the grain. Analyses indicated significant differences (P ≤ 0.05) in grain yield among hybrids, maturity ratings and sites. Hybrid yield differences were related to hybrid differences in trait values. Traits contributing to yield differences were also selected by a series of multiple linear regressions. The test year was abnormally warm (all sites had more than 2800 CHU) and traits related to the vegetative stature of the plant and the time required to reach that stature were most consistently correlated with yield. Key words: Plant traits, maize, regression, grain yield, breeding

scholarly journals GENETIC DIVERGENCE IN MAIZE (Zea mays L.)

2007 ◽  
Vol 20 (1) ◽  
pp. 53-56
Author(s):  
N. A. Ivy ◽  
M. Shalim Uddin ◽  
R. Sultana ◽  
M. M. Masud
Keyword(s):  
Genetic Diversity ◽  
Principal Component Analysis ◽  
Zea Mays ◽  
Grain Yield ◽  
Plant Height ◽  
Genetic Divergence ◽  
Zea Mays L ◽  
Principal Component ◽  
Days To Maturity ◽  
Ear Height

Genetic divergence of 25 genotypes of maize were estimated using D2 and Principal Component Analysis. The genotypes under study fell into five clusters. The inter-cluster distances were higher than intra cluster distances suggesting wider genetic diversity among the genotypes of different groups. The intra-cluster value was maximum in cluster V and minimum in cluster I. The inter cluster D2 values showed the maximum distance between cluster II and III followed by the distance between II and I. The cluster means were higher for days to maturity, plant height and ear height in cluster II; grain yield per plant was higher in cluster IV. Genotypes were much in use having the above mentioned characters in clusters II and IV would offer a good scope for the improvement of this crop through hybridization and rational selection.DOI: http://dx.doi.org/10.3329/bjpbg.v20i1.17027

scholarly journals Genetic Diversity and Correlation for Grain Yield and Quality Traits in Local Maize (Zea mays L.)

2012 ◽  
Vol 4 (3) ◽  
pp. 126-130 ◽  
Author(s):  
Sali ALIU ◽  
Imer RUSINOVCI ◽  
Shukri FETAHU ◽  
Ludvik ROZMAN
Keyword(s):  
Genetic Diversity ◽  
Zea Mays ◽  
Grain Yield ◽  
Zea Mays L ◽  
Quality Traits ◽  
Yield And Quality ◽  
Grain Yield And Quality

Relationship of Certain Stalk Characters with Grain Yield in Corn ( Zea mays L.) 1

Crop Science ◽  
1969 ◽  
Vol 9 (3) ◽  
pp. 265-267 ◽  
Author(s):  
T. P. Singh ◽  
M. S. Zuber ◽  
G. F. Krause
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Zea Mays L ◽  
Relationship Of

GRAIN YIELD COMPARISON OF PURE STANDS AND MIXTURES OF DIFFERENT PROPORTIONS FOR TWO HYBRIDS OF MAIZE

1985 ◽  
Vol 65 (3) ◽  
pp. 481-485 ◽  
Author(s):  
G. J. HOEKSTRA ◽  
L. W. KANNENBERG ◽  
B. R. CHRISTIE
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Zea Mays L ◽  
Pure Stand ◽  
Higher Plant ◽  
Data Support ◽  
Plant Densities ◽  
The Difference ◽  
Corn Grain ◽  
Corn Grain Yield

The objective of this study was to determine the effects on grain yield of growing cultivars in mixtures of different proportions. Two maize (Zea mays L.) hybrids, Pride 116 and United 106, were grown for 2 yr in pure stand and in seven mixtures of different proportions (7:1, 6:2, 5:3, 4:4, 3:5, 2:6, 1:7) at plant densities of 61 500, 99 400, and 136 000 plants per hectare. The total number of mixture combinations was 42, i.e. 2 years × three densities × seven proportions. All but one mixture yielded as expected based on the yield of component hybrids in pure stand. The higher yielding hybrid (United 106) yielded significantly less grain per plant in mixtures than in pure stand. The lower yielding hybrid (Pride 116) yielded more in mixtures than in pure stand, although the difference was not significant. These data support previous observations that the ability of a hybrid to yield in pure stands is not necessarily related to its ability to yield in mixtures. High plant densities appear to enhance the likelihood of interactions occurring among hybrids. For United 106, the number of proportions yielding less grain per plant than in pure stand was highly significant at the two higher plant densities. For Pride 116, the number of proportions yielding more than in pure stand was highly significant at the highest plant density.Key words: Corn, grain yield, mixtures of different proportions, high plant densities, Zea mays

scholarly journals Genetic diversity among maize (Zea mays L.) landraces assessed by RAPD markers

2004 ◽  
Vol 27 (2) ◽  
pp. 228-236 ◽  
Author(s):  
Valdemar P. Carvalho ◽  
Claudete F. Ruas ◽  
Josué M. Ferreira ◽  
Rosângela M.P. Moreira ◽  
Paulo M. Ruas
Keyword(s):  
Genetic Diversity ◽  
Zea Mays ◽  
Rapd Markers ◽  
Zea Mays L
Sign in / Sign up

Export Citation Format

Share Document