EurekaMag
+ Most Popular
Cunninghamia lanceolata plantations in China
Mammalian lairs in paleo ecological studies and palynology
Studies on technological possibilities in utilization of anhydrous milk fat for production of recombined butter-like products
Should right-sided fibroelastomas be operated upon?
Large esophageal lipoma
Apoptosis in the mammalian thymus during normal histogenesis and under various in vitro and in vivo experimental conditions
Poissons characoides nouveaux ou non signales de l'Ilha do Bananal, Bresil
Desensitizing efficacy of Colgate Sensitive Maximum Strength and Fresh Mint Sensodyne dentifrices
Administration of fluid by subcutaneous infusion: revival of a forgotten method
Tundra mosquito control - an impossible dream?
Schizophrenia for primary care providers: how to contribute to the care of a vulnerable patient population
Geochemical pattern analysis; method of describing the Southeastern limestone regional aquifer system
Incidence of low birth weights in a hospital of Mexico City
Tabanidae
Graded management intensity of grassland systems for enhancing floristic diversity
Microbiology and biochemistry of cheese and fermented milk
The ember tetra: a new pygmy characid tetra from the Rio das Mortes, Brazil, Hyphessobrycon amandae sp. n. (Pisces, Characoidei)
Risk factors of contrast-induced nephropathy in patients after coronary artery intervention
Renovation of onsite domestic wastewater in a poorly drained soil
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Systolic blood pressure in a population of infants in the first year of life: the Brompton study
Haematological studies in rats fed with metanil yellow
Studies on pasteurellosis. I. A new species of Pasteurella encountered in chronic fowl cholera
Dormancy breaking and germination of Acacia salicina Lindl. seeds
therapy of lupus nephritis. a two-year prospective study

Genetic analysis of grain yield performance and weevil [Sitophilus zeamais (Motschulsky)] resistance in southern African maize hybrids


Genetic analysis of grain yield performance and weevil [Sitophilus zeamais (Motschulsky)] resistance in southern African maize hybrids



Maydica 60(4): M36



ISSN/ISBN: 0025-6153

Maize (Zea mays L) grain losses due to grain weevils threaten food security in poor rural communities where grain is stored on farm without any chemical treatment in developing countries. Progress in developing high-yielding and weevil-resistant maize varieties is scarcely reported in the literature. Knowledge of the mode of inheritance for both grain yield and weevil resistance in elite maize germplasm would be crucial in designing viable breeding strategies. Therefore hybrids that were generated in a North Carolina design II mating scheme were evaluated for grain yield over three environments. Hybrids were also evaluated for maize weevil (Sitophilus zeamais Motsch) resistance under controlled temperature and relative humidity in the laboratory. Results revealed that only a few hybrids combined high grain yield potential and maize weevil-resistance reflecting the challenges which may be encountered in developing productive hybrids. However, highly significant differences between hybrids for both grain yield and weevil resistance indicated opportunities for selection. Furthermore, weevil resistance was found in at least four major heterotic groups suggesting that development of weevil-resistant hybrids could be created by crossing complementary lines from these heterotic groups. Significance of GCA and SCA effects suggested that genes with both additive and non-additive effects, respectively, were important for grain yield. The SCA effects were not significant (P > 0.05) for grain weevil resistance parameters, suggesting that genes with additive effects played a predominant role in governing the resistance in hybrids. Generally the baseline resistance to maize weevil could be improved through selection, while procedures that emphasize both GCA and SCA would be exploited to enhance grain yield in this set of maize germplasm.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 066316603

Download citation: RISBibTeXText

Related references

Yield and agronomic performance of maize hybrids resistant to the maize weevil Sitophilus zeamais Motschulsky Coleoptera Curculionidae. Crop Protection 46: 94-99, 2013

Evaluation of early-generation tropical maize testcrosses for grain-yield potential and weevil ( Sitophilus zeamais Motschulsky) resistance. Crop Protection 139: 105384, 2021

Resistance of Early Generation Maize Inbred Lines and Their Hybrids to Maize Weevil [Sitophilus zeamais (Motschulsky)]. Crop Science 50(4): 1310-1317, 2010

Chemical bases for maize grain resistance to infestation and damage by the maize weevil, Sitophilus zeamais Motschulsky. Journal of Stored Products Research 69: 41-50, 2016

Studies on rice varieties for resistance to the maize weevil, Sitophilus zeamais Motschulsky in stored grain. Journal of South China Agricultural University 14(1): 84-89, 1993

Quality of grain and oil of maize subjected to UV-C radiation (254 nm) for the control of weevil (Sitophilus zeamais Motschulsky). Journal of Food Processing and Preservation 42(2): e13453, 2018

Resistance of three-way cross experimental maize hybrids to post-harvest insect pests, the larger grain borer ( Prostephanus truncatus) and maize weevil ( Sitophilus zeamais). International Journal of Tropical Insect Science 31(1-2): 3-12, 2011

Genetic analysis for resistance to Sitophilus zeamais (Motschulsky) among provitamin-A maize germplasm. Maydica 63(2): M14, 2018

Possible source of resistance to the maize weevil (Sitophilus zeamais Motschulsky, 1855) in maize in the husk (Zea mays L.). Bragantia 37(1): 17-24, 1978

A possible source of resistance to the weevil Sitophilus zeamais Motschulsky, 1855, in maize (Zea mays L.). Bragantia 37: 17-24, 1978

Resistance of selected Mozambican local and improved maize genotypes to maize weevil, Sitophilus zeamais (Motschulsky). Journal of Stored Products Research 73: 115-124, 2017

Laboratory evaluation of grain protectant efficacy of different foliar extracts against maize weevil Sitophilus zeamais (Motschulsky). Archives Of Phytopathology And Plant Protection 43(18): 1809-1818, 2010

Seasonal flight activity of the maize weevil sitophilus zeamais motschulsky coleoptera curculionidae and the rice weevil sitophilus oryzae l. in south carolina usa. Journal of Agricultural Entomology 6(3): 183-192, 1989

Effect of insecticides on the resistance and the reproductive rate in maize weevil (Sitophilus zeamais Motschulsky). Plant Protection Bulletin, Taiwan 24(2): 143-151, 1982

Interaction between maize hybrids and grain protectants for control of Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae). Revista Brasileira de Armazenamento 31(2): 144-153, 2006