Genotype × Environment Interaction for Plant Density Response in Maize (Zea mays L.)

Crop Science ◽  
2016 ◽  
Vol 56 (4) ◽  
pp. 1493-1505 ◽  
Author(s):  
Jode W. Edwards
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Plant Density ◽  
Environment Interaction ◽  
Genotype Environment Interaction ◽  
Density Response

scholarly journals Evaluación de híbridos de maíz (Zea mays L.) de grano blanco y amarillo en ambientes de Centroamérica, Panamá y el Caribe en 1996.

2016 ◽  
Vol 9 (1) ◽  
pp. 28 ◽  
Author(s):  
Adán Aguiluz
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Environment Interaction ◽  
Genotype Environment Interaction ◽  
Ammi Model ◽  
White Grain ◽  
National Programs ◽  
And Control ◽  
Main Effects

Thirty white-grain hybrids in 1210cations and 20 yellow-grain hybrids in 14 locations were evaluated in 1996. The control HB-83 was used for white grains, and control HB-46 was used for yellow grains. Measurement of genotype/environment interaction was obtained through the analysis of additive main effects and multiplicative in~eractions (AMMI model). White hybrids A- 7573, H-53, HN-951, A-7530, CB- XHS-7GMl and CML- 9XCML-47 equaled or surpassed the HB-83 control in 17,8%; 0,1%; 1,1%; 9,2%; 8,1% and 18,7% ofthe cases, respectively, showing little interaction with the environment (AMMI values close to O). Two of these hybrids are from national programs, and three from private seed companies. As for the yellow grains, only the CB-XHS-8GM3, HS-6 and DK-888A hybrids surpassed the control HA-46 in yield, and showed AMMI scores c10se to O: (0,20; -0,07 and -0,12, respectively); all of these belong to private seed companies.

Genotype × environment interaction and selection of maize (Zea mays L.) hybrids across moisture regimes

2021 ◽  
Vol 270 ◽  
pp. 108224
Author(s):  
Ashok Singamsetti ◽  
J.P. Shahi ◽  
P.H. Zaidi ◽  
K. Seetharam ◽  
M.T. Vinayan ◽  
...  
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Environment Interaction ◽  
Genotype Environment Interaction ◽  
Moisture Regimes ◽  
Selection Of

PLANT DENSITY, MATURITY AND PROLIFICACY EFFECTS ON EARLY MAIZE

1987 ◽  
Vol 67 (1) ◽  
pp. 35-42 ◽  
Author(s):  
H. Z. CROSS ◽  
J. TONYE KAMEN ◽  
L. BRUN
Keyword(s):  
Yield Components ◽  
Zea Mays L ◽  
Plant Density ◽  
Maize Yield ◽  
Environment Interaction ◽  
Genotype Environment Interaction ◽  
Plant Densities ◽  
Lower Test ◽  
Root Lodging ◽  
Stalk Lodging

Several early maize (Zea mays L.) ideotypes were evaluated to determine if maturity or prolificacy differences were important determinants of responses to variable plant densities. Sixteen hybrids were tested at 24 000, 48 000 and 72 000 plants ha−1 in four North Dakota environments. These 16 hybrids represented a 2 × 2 factorial arrangement of maturity (ear moisture at harvest) and prolificacy (ears per plant), with four randomly selected hybrids representing each combination of factors. Grain yield, ear moisture at harvest, stalk and root lodging, test weight and yield components were evaluated. No significant maturity × plant density or prolificacy × plant density interactions were detected although trends were for early hybrids to yield relatively better at higher planting densities. In the four environments, early hybrids outyielded late hybrids and prolific hybrids outyielded nonprolific hybrids. Early hybrids had higher test weights, more stalk lodging, heavier kernels and more ears per plant than late hybrids. Prolific hybrids had higher yields, lower test weights, lighter kernels, more ears per plant and more root lodging than nonprolific hybrids. For the four environments tested, the highest density produced the highest average yields. The data supported the use of early, prolific hybrids at medium to high densities. However, early prolific hybrids grown at high plant densities had increased root lodging, stalk lodging and higher moisture at harvest.Key words: Maize, yield components, genotype × environment interaction, plant population, planting rate, ears per plant

INFLUENCE DU GENOTYPE ET DU LIEU SUR LE NOMBRE D’OVULES PRESENTS A LA FLORAISON CHEZ LE MAIS

1983 ◽  
Vol 63 (2) ◽  
pp. 371-375
Author(s):  
M. DERIEUX ◽  
J.-B. DUBURCQ ◽  
R. BONHOMME ◽  
F. RUGET ◽  
P. VINCOURT
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Environment Interaction ◽  
Northern Limit ◽  
Southeastern Part ◽  
Heat Units ◽  
Genotype Environment Interaction ◽  
Ovule Number

The number of ovules of the first ear of maize (Zea mays L.) at silking time was studied on three single crosses ranging from very early flint to late maturing, in three locations, from the northern limit of culture for grain to good irrigated conditions of the southeastern part of France. The results show that the ovule number is mainly determined by genotypes and increases with lateness; means are as follows: F7 × F2, 338; WH × WJ, 448; W64A × F546, 589 ovules. The variation among environments is characterized by a CV of 9% but is not significant. Nevertheless a part of this variation seems to be explained by the duration, in terms of heat units, of the sowing-silking period.Key words: Zea mays L., ovule number, genotype-environment interaction

Genetic analysis of leaf morphology underlying the plant density response by QTL mapping in maize (Zea mays L.)

2016 ◽  
Vol 36 (5) ◽  
Author(s):  
Lixia Ku ◽  
Zhenzhen Ren ◽  
Xiao Chen ◽  
Yong Shi ◽  
Jianshuang Qi ◽  
...  
Keyword(s):  
Zea Mays ◽  
Genetic Analysis ◽  
Qtl Mapping ◽  
Leaf Morphology ◽  
Zea Mays L ◽  
Plant Density ◽  
Density Response

Identification of genetic factors affecting plant density response through QTL mapping of yield component traits in maize (Zea mays L.)

Euphytica ◽  
2011 ◽  
Vol 182 (3) ◽  
pp. 409-422 ◽  
Author(s):  
Jinjie Guo ◽  
Zongliang Chen ◽  
Zhipeng Liu ◽  
Baobao Wang ◽  
Weibin Song ◽  
...  
Keyword(s):  
Zea Mays ◽  
Qtl Mapping ◽  
Genetic Factors ◽  
Zea Mays L ◽  
Plant Density ◽  
Yield Component ◽  
Factors Affecting ◽  
Density Response ◽  
Component Traits ◽  
Yield Component Traits

EFFECTS OF PLANT DENSITY ON THE YIELD, MATURITY AND GRAIN CONTENT OF WHOLE-PLANT MAIZE

1981 ◽  
Vol 61 (4) ◽  
pp. 843-849 ◽  
Author(s):  
T.B. DAYNARD ◽  
J.F. MULDOON
Keyword(s):  
Zea Mays ◽  
Leaf Area ◽  
Dry Matter ◽  
Zea Mays L ◽  
Plant Density ◽  
Plant Population ◽  
Southern Ontario ◽  
Small Stature ◽  
Whole Plant ◽  
Density Response

To study the effect of increases in plant density on the dry matter (DM) yield, percentage grain and percentage DM content of whole-plant maize (Zea mays L.), 12 tests were established over a 3-yr period in Central and Southern Ontario. Each test involved three adapted hybrids grown at 50 000, 63 000 and 75 000 plants/ha in 1976, and at these three densities plus 92 000 plants/ha in 1977 and 1978. No hybrid-by-density interaction for DM yield occurred in any test, and the density response was similar for most tests. Maximum DM yield was generally attained once density increased to 63 000 plant/ha. Plant population had a negligible effect on the grain percentage of DM content of forage up to 75 000 plants/ha. Optimum density for DM yield was much lower than expected, given the small stature (i.e., leaf area/plant) of adapted hybrids grown in most of Ontario.

Dissection of the genetic architecture underlying the plant density response by mapping plant height-related traits in maize (Zea mays L.)

2015 ◽  
Vol 290 (4) ◽  
pp. 1223-1233 ◽  
Author(s):  
Lixia Ku ◽  
Liangkun Zhang ◽  
Zhiqiang Tian ◽  
Shulei Guo ◽  
Huihui Su ◽  
...  
Keyword(s):  
Zea Mays ◽  
Plant Height ◽  
Genetic Architecture ◽  
Zea Mays L ◽  
Plant Density ◽  
Density Response
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