Genetic studies in an exotic population of corn (Zea mays L.) grown under two plant densities

1974 ◽  
Vol 44 (5) ◽  
pp. 193-198 ◽  
Author(s):  
Subandi ◽  
W. A. Compton
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Genetic Studies ◽  
Plant Densities

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 studies of morpho-physiological traits of maize (Zea mays L.) seedling

2013 ◽  
Vol 8 (28) ◽  
pp. 3668-3678
Author(s):  
Ali Qurban ◽  
Ahsan Muhammad ◽  
Hammad Nadeem Tahir Muhammad ◽  
Maqsood Ahmed Basra Shahzad
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Physiological Traits ◽  
Genetic Studies

CULTURAL PRACTICES AFFECTING MATURITY AND YIELD OF CORN (ZEA MAYS) FOR WHOLE-PLANT SILAGE IN SHORT-SEASON AREAS

1978 ◽  
Vol 58 (3) ◽  
pp. 629-642 ◽  
Author(s):  
R. P. WHITE
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Cultural Practices ◽  
Planting Dates ◽  
Harvest Dates ◽  
Whole Plant ◽  
Plant Densities ◽  
Early Fall ◽  
Short Season ◽  
Low Levels

The production of corn (Zea mays L.) as whole-plant silage in short-season areas is severely restricted by such factors as late planting, slow emergence, slow early growth, and delayed silking that result from cold, wet soils and low levels of accumulated heat units. Failure of the plants to reach physiological maturity results from early fall frosts. The effects of variations in planting dates, plant densities, fertilizer and manure treatments, weeds, harvest dates, and other cultural practices on the yield and maturity of silage corn are discussed.

scholarly journals Fodder yield, economics and quality of “Pratap Makka Chari-6” (Zea mays L.) under varying plant densities and fertility levels

2020 ◽  
Vol 8 (6) ◽  
pp. 1472-1474
Author(s):  
D Panwar ◽  
D Chouhan ◽  
D Singh ◽  
RP Singh ◽  
P Choudhary ◽  
...  
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Fodder Yield ◽  
Plant Densities

Hybrid and population density affect yield and quality of silage maize in central Alberta

2007 ◽  
Vol 87 (4) ◽  
pp. 867-871 ◽  
Author(s):  
D. Stanton ◽  
A. W. Grombacher ◽  
R. Pinnisch ◽  
H. Mason ◽  
D. Spaner
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
North Central ◽  
Heat Units ◽  
Silage Maize ◽  
Yield And Quality ◽  
Northern Latitudes ◽  
Early Maturing ◽  
Plant Densities

Four maize (Zea mays L.) hybrids planted at varying plant densities were evaluated for their yield, maturity, and quality across environments in north central Alberta. Given the balance of yield and quality, very early maturing hybrids [2000 corn heat units (CHU)] planted at ~100 000 plants ha-1 are recommended for north central Alberta. Key words: Corn; Zea mays L.; northern latitudes; corn heat units

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