Subscribe Now Subscribe Today
Science Alert
 
Blue
   
Curve Top
Asian Journal of Plant Sciences
  Year: 2021 | Volume: 20 | Issue: 1 | Page No.: 91-101
DOI: 10.3923/ajps.2021.91.101
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Maximizing Maize Grain, Protein, Oil and Starch Yields by Using High Plant Density and Stress Tolerant Genotype

Younis A.S.M., A.M.M. Al-Naggar, B.A. Bakry and S.M.A. Nassar

Abstract:
Background and Objective: Enhancing yield of protein, oil and carbohydrate of maize grain (Zea mays L.) can be achieved either by increasing grain contents of these constituents or by increasing grain yield per land unit area. The main aim of the current investigation was to determine the effects of elevated plant density and genotype on corn grain protein, oil and carbohydrate contents and yields. Materials and Methods: A two year experiment was conducted in the field. The experimental design was a split plot with three replications. The main plots were devoted to 3 plant densities, i.e., Low Density (LD, 47,600 plants ha1), Medium Density (MD, 71,400 plants ha1) and High Density (HD, 95,200 plants ha1) and sub plots to 17 genotypes. Results: The HD did not significantly affect grain protein, oil and starch contents but caused a significant increase of 27.57% for grain yield ha1 (GYPH), 26.34% for protein yield ha1 (PYPH), 27.57% for oil yield ha1 (OYPH) and 28.15% for starch yield ha1 (SYPH). The highest yields ha1 of grain, protein, oil and starch were recorded under HD and the lowest under LD. The F1 cross (1×5) under HD gave the highest GYPH (14.94 t), PYPH (1.42 t), OYPH (0.582 t) and SYPH (10.67 t). Conclusion: The use of HD would overcome the negative impacts of interplant competition and lead to maximizing GYPH, PYPH, OYPH and SYPH, such maximization was more pronounced by the highest HD-tolerant genotypes.
PDF Fulltext XML References Citation Report Citation
How to cite this article:

Younis A.S.M., A.M.M. Al-Naggar, B.A. Bakry and S.M.A. Nassar, 2021. Maximizing Maize Grain, Protein, Oil and Starch Yields by Using High Plant Density and Stress Tolerant Genotype. Asian Journal of Plant Sciences, 20: 91-101.

DOI: 10.3923/ajps.2021.91.101

URL: https://scialert.net/abstract/?doi=ajps.2021.91.101

COMMENT ON THIS PAPER
 
 
 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 

Curve Bottom