{"title":"不同玉米基因型对入侵秋军虫 Spodoptera frugiperda (J. E. Smith) 的抗性揭示了潜在的形态生化特征","authors":"","doi":"10.1016/j.cropro.2024.106956","DOIUrl":null,"url":null,"abstract":"<div><p>Fall armyworm, <em>Spodoptera frugiperda</em> (J. E. Smith) is a major invasive insect pest of maize causing severe economic losses in all major maize-growing countries. Host-plant resistance is one of the key tactics for reducing the losses caused by this pest. In the present study, maize genotypes were screened under artificial infestation to identify resistant sources to FAW and determined the pivotal morpho-biochemical traits associated with resistance. The findings revealed that four maize genotypes, namely CML 67, DMRE 63, CML 72, and CML 141, exhibited resistance to FAW. Furthermore, several morpho-biochemical traits were identified as influential factors in conferring resistance. Trichome density, leaf thickness, cob characteristics <em>viz.,</em> cob length, cob width, husk parameters <em>viz.,</em> husk length, husk width, number of husk layers, husk weight, and husk tightness, and yield parameters demonstrated negative correlations with leaf damage rating among the various maize genotypes. On the other hand, leaf morphology including leaf length, leaf width and plant architecture such as plant height, number of nodes per plant, and internodal distance exhibited positive correlations with leaf damage rating. Nitrogen, phosphorous, protein, total soluble sugars, and amino acids were positively correlated with leaf damage rating, while potassium, acid detergent fiber, acid detergent lignin, total phenol, and total tannin contents exhibited negative correlations. These results suggest that certain traits, including trichome density, leaf thickness, cob characteristics, husk parameters, and biochemical traits significantly contribute resistance to fall armyworm in maize. Importantly, this research is expected to facilitate the selection of FAW-resistant lines for integration into maize breeding programs, thereby contributing to sustainable maize production.</p></div>","PeriodicalId":10785,"journal":{"name":"Crop Protection","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Resistance in diverse maize genotypes to invasive fall armyworm Spodoptera frugiperda (J. E. Smith) reveals potential morpho-biochemical traits\",\"authors\":\"\",\"doi\":\"10.1016/j.cropro.2024.106956\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Fall armyworm, <em>Spodoptera frugiperda</em> (J. E. Smith) is a major invasive insect pest of maize causing severe economic losses in all major maize-growing countries. Host-plant resistance is one of the key tactics for reducing the losses caused by this pest. In the present study, maize genotypes were screened under artificial infestation to identify resistant sources to FAW and determined the pivotal morpho-biochemical traits associated with resistance. The findings revealed that four maize genotypes, namely CML 67, DMRE 63, CML 72, and CML 141, exhibited resistance to FAW. Furthermore, several morpho-biochemical traits were identified as influential factors in conferring resistance. Trichome density, leaf thickness, cob characteristics <em>viz.,</em> cob length, cob width, husk parameters <em>viz.,</em> husk length, husk width, number of husk layers, husk weight, and husk tightness, and yield parameters demonstrated negative correlations with leaf damage rating among the various maize genotypes. On the other hand, leaf morphology including leaf length, leaf width and plant architecture such as plant height, number of nodes per plant, and internodal distance exhibited positive correlations with leaf damage rating. Nitrogen, phosphorous, protein, total soluble sugars, and amino acids were positively correlated with leaf damage rating, while potassium, acid detergent fiber, acid detergent lignin, total phenol, and total tannin contents exhibited negative correlations. These results suggest that certain traits, including trichome density, leaf thickness, cob characteristics, husk parameters, and biochemical traits significantly contribute resistance to fall armyworm in maize. Importantly, this research is expected to facilitate the selection of FAW-resistant lines for integration into maize breeding programs, thereby contributing to sustainable maize production.</p></div>\",\"PeriodicalId\":10785,\"journal\":{\"name\":\"Crop Protection\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2024-09-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Crop Protection\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0261219424003843\",\"RegionNum\":2,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"AGRONOMY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crop Protection","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0261219424003843","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRONOMY","Score":null,"Total":0}
Resistance in diverse maize genotypes to invasive fall armyworm Spodoptera frugiperda (J. E. Smith) reveals potential morpho-biochemical traits
Fall armyworm, Spodoptera frugiperda (J. E. Smith) is a major invasive insect pest of maize causing severe economic losses in all major maize-growing countries. Host-plant resistance is one of the key tactics for reducing the losses caused by this pest. In the present study, maize genotypes were screened under artificial infestation to identify resistant sources to FAW and determined the pivotal morpho-biochemical traits associated with resistance. The findings revealed that four maize genotypes, namely CML 67, DMRE 63, CML 72, and CML 141, exhibited resistance to FAW. Furthermore, several morpho-biochemical traits were identified as influential factors in conferring resistance. Trichome density, leaf thickness, cob characteristics viz., cob length, cob width, husk parameters viz., husk length, husk width, number of husk layers, husk weight, and husk tightness, and yield parameters demonstrated negative correlations with leaf damage rating among the various maize genotypes. On the other hand, leaf morphology including leaf length, leaf width and plant architecture such as plant height, number of nodes per plant, and internodal distance exhibited positive correlations with leaf damage rating. Nitrogen, phosphorous, protein, total soluble sugars, and amino acids were positively correlated with leaf damage rating, while potassium, acid detergent fiber, acid detergent lignin, total phenol, and total tannin contents exhibited negative correlations. These results suggest that certain traits, including trichome density, leaf thickness, cob characteristics, husk parameters, and biochemical traits significantly contribute resistance to fall armyworm in maize. Importantly, this research is expected to facilitate the selection of FAW-resistant lines for integration into maize breeding programs, thereby contributing to sustainable maize production.
期刊介绍:
The Editors of Crop Protection especially welcome papers describing an interdisciplinary approach showing how different control strategies can be integrated into practical pest management programs, covering high and low input agricultural systems worldwide. Crop Protection particularly emphasizes the practical aspects of control in the field and for protected crops, and includes work which may lead in the near future to more effective control. The journal does not duplicate the many existing excellent biological science journals, which deal mainly with the more fundamental aspects of plant pathology, applied zoology and weed science. Crop Protection covers all practical aspects of pest, disease and weed control, including the following topics:
-Abiotic damage-
Agronomic control methods-
Assessment of pest and disease damage-
Molecular methods for the detection and assessment of pests and diseases-
Biological control-
Biorational pesticides-
Control of animal pests of world crops-
Control of diseases of crop plants caused by microorganisms-
Control of weeds and integrated management-
Economic considerations-
Effects of plant growth regulators-
Environmental benefits of reduced pesticide use-
Environmental effects of pesticides-
Epidemiology of pests and diseases in relation to control-
GM Crops, and genetic engineering applications-
Importance and control of postharvest crop losses-
Integrated control-
Interrelationships and compatibility among different control strategies-
Invasive species as they relate to implications for crop protection-
Pesticide application methods-
Pest management-
Phytobiomes for pest and disease control-
Resistance management-
Sampling and monitoring schemes for diseases, nematodes, pests and weeds.