Results 221 to 230 of about 11,362 (262)

Inheritance of Maize Weevil Resistance in Maize¹

Crop Science, 1975
Ten, eight‐line sets of dent maize inbreds (Zea mays L.) were tested for seed resistance to maize weevil (Sitophilus zeamais Motschulsky) in a design II experiment. The genetic variability was evaluated for maternal, cytoplasmic, and endosperm genotype sources.
N. W. Widstrom, W. D. Hanson, L. M. Redlinger   +2 more
openaire   +1 more source

The chemical identification of the rice weevil and maize weevil aggregation pheromone

Tetrahedron Letters, 1984
Abstract (R*,S*)-4-methyl-s-hydroxy-3-heptanone is identified as the major component of the aggregation pheromone of the rice weevil ( sitophilus oryzae L.) and the maize weevil ( S. zeamais Motsch.).
Norman R. Schmuff, Joel K. Phillips, Wendell E. Burkholder, Henry M. Fales, Chi-Wan Chen, Peter P. Roller, Michael Ma   +6 more
openaire   +1 more source

Mapping of QTL Associated with Maize Weevil Resistance in Tropical Maize

Crop Science, 2009
ABSTRACTThe maize weevil (MW), Sitophilus zeamais (Motsch.), is an important pest of stored maize (Zea mays L.) in tropical areas. Quantitative trait loci (QTL) associated with MW resistance were analyzed. A total of 163 F2 progeny derived from the cross CML290 (susceptible) × Muneng‐8128 C0 HC1‐18‐2‐1‐1 (resistant), were genotyped with 151 molecular ...
Silverio García‐Lara, Mirelle M. Khairallah, Mateo Vargas, David J. Bergvinson   +3 more
openaire   +1 more source

Divergent Selection for Resistance to Maize Weevil in Six Maize Populations

Crop Science, 2003
Maize weevil (Sitophilus zeamais Motschulsky) is an important pest of maize (Zea mays L.) in the tropics, causing serious losses for many resource‐poor farmers who store grain on‐farm for use as food and seed. This study evaluated whether weevil resistance of six maize populations could be divergently changed by S1 and S2 selection, and assessed the ...
Thanda Dhliwayo, Kevin V. Pixley
openaire   +1 more source

Soluble Peroxidase Activity in Maize Endosperm Associated with Maize Weevil Resistance

Crop Science, 2007
Plant peroxidases (PODs) are involved in resistance to pathogens and insects. This study investigated the role of POD in maize (Zea mays L.) resistance to the maize weevil, Sitophilus zeamais (Motsch.). Insect bioassays were performed under controlled conditions to assess maize weevil resistance.
Silverio García-Lara, John T. Arnason, David Díaz-Pontones, Elvira Gonzalez, David J. Bergvinson   +4 more
openaire   +1 more source

Selection for resistance to the maize weevil in kernels of maize

Euphytica, 1975
Significant differences in progeny numbers, weights and developmental periods of weevils were found among maize slections. Resistance to weevil attack increased through selection in dent types but not in flint types. Resistance was located in the pericarp, which is maternal tissue.
A. van Schoonhoven, E. Horber, C. E. Wassom, R. B. Mills   +3 more
openaire   +1 more source

Resistance of Maize Landraces to the Maize Weevil Sitophilus zeamais Motsch. (Coleoptera: Curculionidae)

Neotropical Entomology, 2012
The maize weevil Sitophilus zeamais Motsch. is an important pest of maize that attacks the grain both in the field and during storage. The damage caused by the maize weevil S. zeamais on maize landraces, Amarelo Antigo, Asteca, Caiano, Carioca, and Ferrinho, was evaluated by no-choice tests under laboratory conditions.
A Y, Mikami, V, Carpentieri-Pípolo, Maurício Ursi, Ventura   +2 more
openaire   +2 more sources

Damage of Maize Borer and Maize Weevil on the Yield of Transgenic Phytase Maize

Agronomy Journal, 2015
The recent Chinese government approval of transgenic phytase maize for field experimentation is vital for its development of biotech maize for improved maize production. Phytase maize can potentially improve the efficiency of feed utilization by livestock and reduce environmental pollution from animal manure.
Shoulin Jiang, Zongchao Zhao, Junsheng Li, Jinglan He, Yingen Xue, Wenwei Xu, Limin Zhang, Fajun Chen   +7 more
openaire   +1 more source

Factors contributing to resistance of exotic maize populations to maize weevil,Sitophilus zeamais

Journal of Chemical Ecology, 1987
Factors contributing to resistance of maize to infestation by the corn weevilSitophilus zeamais were investigated in four populations of indigenous and improved maize from Belize. Resistance was related to the antifeedant properties of grain as well as sugar content and mechanical hardness.
A, Serratos, J T, Arnason, C, Nozzolillo, J D, Lambert, B J, Philogène, G, Fulcher, K, Davidson, L, Peacock, J, Atkinson, P, Morand   +9 more
openaire   +2 more sources

Application of Object Detection Algorithm in Identification of Rice Weevils and Maize Weevils

Proceedings of the 2018 2nd International Conference on Deep Learning Technologies, 2018
Deep learning based models have had great success in object detection, but the state of the art models have not yet been widely applied to the identification of the stored-grain pests. We apply for the first time an object detection model to identify rice weevils and maize weevils, which have always been a challenge in the field of the research of ...
Zhicai Liu, Guanhong Zhang, Haiying Yang, Muyi Sun, Hao Dang, Xiaoguang Zhou   +5 more
openaire   +1 more source