Crop Science最新文献_第7页

Influence of Bt and environmental factors on Fusarium ear rot in maize Bt及环境因子对玉米穗腐病的影响

IF 1.9 3区农林科学

Crop Science Pub Date : 2025-07-13 DOI: 10.1002/csc2.70103

Eric N. Butoto, Alexis M. Alsdorf, Dominic D. Reisig, James B. Holland

{"title":"Influence of Bt and environmental factors on Fusarium ear rot in maize","authors":"Eric N. Butoto, Alexis M. Alsdorf, Dominic D. Reisig, James B. Holland","doi":"10.1002/csc2.70103","DOIUrl":"10.1002/csc2.70103","url":null,"abstract":"Fusarium verticillioides is responsible for Fusarium ear rot (FER) and fumonisin (FUM) in maize (Zea mays L.). Multiple factors, including drought stress, humidity, and insects, influence the severity of FER and FUM. This study aimed to assess the occurrence and severity of FER, FUM, and corn earworm (Helicoverpa zea Boddie) feeding in Bt (Bacillus thuringiensis) and non-Bt maize grown on commercial farms in North Carolina. We attempt to identify important environmental factors specific to maize growth stages that contribute to FER and FUM. Two Bt and three non-Bt hybrids were sampled in 50 environments in North Carolina for FER and FUM under natural infection. Bt hybrids had 7.2% ear rot compared to 11.7% for non-Bt hybrids. For corn earworm feeding, Bt hybrids had 1.5 cm2 per ear of feeding damage compared to 4.2 cm2 per ear for non-Bt hybrids. Although differences in FUM were not significant, Bt hybrids had a numerically lower FUM than non-Bt hybrids. In some counties and years, the FUM levels exceeded those recommended for products intended for human and animal consumption, with the highest level recorded at 27.8 ppm in a non-Bt hybrid. We identified several environmental covariates related to FER, FUM, and corn earworm feeding. The results highlight the complexity of ear rots, mycotoxin, and insects and their interaction in maize. It also highlights a need for a larger sample size in multiple environments with adequate variation in FER, FUM, and insect feeding to tease apart factors influencing ear rots and mycotoxins.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/csc2.70103","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insights on factor analysis applied to multi-trait and multi-environment selection of common bean lines 因子分析在普通豆系多性状多环境选择中的应用

IF 1.9 3区农林科学

Crop Science Pub Date : 2025-07-11 DOI: 10.1002/csc2.70120

Júlio Augusto de Castro Miguel, Vinícius Quintão Carneiro, Jussara Mencalha, Rafaela Pereira Carvalho, Andreza Rafaely Martins José, José Eulário Lampi Dique, Magno Antonio Patto Ramalho, Tiago de Souza Marçal

{"title":"Insights on factor analysis applied to multi-trait and multi-environment selection of common bean lines","authors":"Júlio Augusto de Castro Miguel, Vinícius Quintão Carneiro, Jussara Mencalha, Rafaela Pereira Carvalho, Andreza Rafaely Martins José, José Eulário Lampi Dique, Magno Antonio Patto Ramalho, Tiago de Souza Marçal","doi":"10.1002/csc2.70120","DOIUrl":"10.1002/csc2.70120","url":null,"abstract":"One of the objectives of common bean (Phaseolus vulgaris L.) breeding programs is selection of lines with superior agronomic traits that are adapted to different environmental conditions. Thus, the aim of this study was to verify the applicability of factor analysis as a strategy to assist the selection of common bean lines for multi-traits in multi-environments. Thirty-five carioca common bean lines were assessed in three municipalities of the state of Minas Gerais (Brazil) in the dry, winter, and wet seasons between 2017 and 2019. The lines were assessed for angular leaf spot (ALS) severity, plant architecture (PA), and grain yield (GYD). Lines were selected using two scenarios: (1) selection for one trait in a multi-environment and (2) multi-trait selection in a multi-environment. Scenario 1 compared the following strategies: the overall mean, the confidence index proposed by Annicchiarico, and the genotype-ideotype index associated with factor analysis. The proposal in Scenario 2 was selection based only on factor scores or based on the genotype–ideotype index associated with factor analysis. The strategies of selecting lines for a trait assessed in multi-environments based on the overall mean or on the genotype-ideotype index associated with factor analysis proved to be appropriate for traits with a simple (ALS and PA) or complex (GYD) line by environment interaction. Furthermore, the use of the genotype–ideotype index associated with factor analysis showed balance in selection of lines under the condition of the same trait in multi-environments and under that of multi-traits in multi-environments.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/csc2.70120","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing canola production in the Northern Great Plains by leveraging genotype × environment × management synergies 利用基因型×环境×管理协同效应优化大平原北部油菜生产

IF 1.9 3区农林科学

Crop Science Pub Date : 2025-07-11 DOI: 10.1002/csc2.70115

Brian L. Beres, Zhijie Wang, F. Craig Stevenson, Charles M. Geddes, Breanne D. Tidemann, Hiroshi Kubota, William E. May, Ramona M. Mohr

{"title":"Optimizing canola production in the Northern Great Plains by leveraging genotype × environment × management synergies","authors":"Brian L. Beres, Zhijie Wang, F. Craig Stevenson, Charles M. Geddes, Breanne D. Tidemann, Hiroshi Kubota, William E. May, Ramona M. Mohr","doi":"10.1002/csc2.70115","DOIUrl":"10.1002/csc2.70115","url":null,"abstract":"Management practices and cultivars for canola (Brassica napus L.) have evolved for seeding and harvest management systems including the adoption of straight-cutting (S/C) over windrowing. We explored how manipulations to seeding rate, pod shatter reduction hybrid, and harvest method alter canola seed yield and quality. An experiment was conducted at five locations across the Canadian Prairies between 2018 and 2022, consisting of two pod shatter reduction hybrids with contrasting growth phenology sown at densities of 60, 120, and 180 seeds m−2, and subjected to either windrowing at 60% and 90% seed color change (SCC), or S/C at 10% and 5% seed moisture. Irrespective of hybrid choice or harvest management, densities of 120 and 180 seeds m−2 provided high and stable yield relative to 60 seeds m−2. Seed losses were minimal for both hybrids, but the late-maturing cultivar expressed higher seed yield and oil concentration. Straight-cutting at 10% seed moisture achieved the highest yields for both hybrids, but delays in S/C timing reduced its advantage over windrowing at 90% SCC. Yield components such as seed number and seed weight on secondary branches became critical to achieve high yields at lower seeding densities when environmental stress was low. While reducing seeding densities to cut costs can be tempting, the highest and most stable yields were achieved with a late-maturing hybrid, sown at 120 seeds m−2 and managed with S/C at harvest. This study provides insights into how seeding density and harvest method interact to affect canola yield within a genetic × environment × management framework.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/csc2.70115","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic parameters and indirect selection of elite lines for efficiency in symbiotic nitrogen fixation in black common bean 黑豆共生固氮效率优良系的遗传参数及间接选择

IF 1.9 3区农林科学

Crop Science Pub Date : 2025-07-10 DOI: 10.1002/csc2.70112

Nayana Valéria Costa, Patrícia Guimarães Santos Melo, Helton Santos Pereira, Renato Gomide de Sousa, Enderson Petronio de Brito Ferreira, Adriano Moreira Knupp, Leonardo Cunha Melo

{"title":"Genetic parameters and indirect selection of elite lines for efficiency in symbiotic nitrogen fixation in black common bean","authors":"Nayana Valéria Costa, Patrícia Guimarães Santos Melo, Helton Santos Pereira, Renato Gomide de Sousa, Enderson Petronio de Brito Ferreira, Adriano Moreira Knupp, Leonardo Cunha Melo","doi":"10.1002/csc2.70112","DOIUrl":"10.1002/csc2.70112","url":null,"abstract":"This study aimed to evaluate whether managing populations and progenies of black common bean (Phaseolus vulgaris L.) in exclusive symbiotic nitrogen fixation (SNF) systems, which refer to environments where the primary nitrogen source in the soil is the SNF, is efficient for selecting lines with high symbiotic performance, using grain yield as a selection criterion, and to verify the relationship between agronomic- and SNF-related traits. A total of 76 black common bean lines from a single population and five checks were evaluated during the winter seasons of 2021 and 2022 under SNF systems. The experimental design was a 9 × 9 triple lattice. Evaluated traits included yield, 100-seed weight, and grain appearance. The top 10 and bottom 10 lines were selected based on grain yield in the field and evaluated with rhizobia inoculation in two greenhouse trials with five checks, using a randomized block design with four replications. Traits assessed included chlorophyll content, shoot and root dry weight, nodule number, nodule dry weight, and specific nodule weight. Genetic variability among the lines allowed for the selection of genotypes with high symbiotic performance. Significant differences were found between the groups of top and bottom lines for specific nodule weight, indicating its potential as a selection indicator. Significant correlations were found among the traits. Specific nodule weight, chlorophyll content, and shoot dry weight were identified as key factors for the indirect selection of genotypes with better symbiotic performance. Eight lines were selected for advanced trials to develop black common bean cultivars for SNF.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/csc2.70112","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of Clegg and TruFirm surface hardness for predicting tennis ball bounce standards on grass courts under match play 用Clegg和TruFirm表面硬度预测草地网球在比赛中的弹跳标准的比较

IF 1.9 3区农林科学

Crop Science Pub Date : 2025-07-10 DOI: 10.1002/csc2.70109

J. S. Ebdon, J. Lu, M. DaCosta

{"title":"Comparison of Clegg and TruFirm surface hardness for predicting tennis ball bounce standards on grass courts under match play","authors":"J. S. Ebdon, J. Lu, M. DaCosta","doi":"10.1002/csc2.70109","DOIUrl":"10.1002/csc2.70109","url":null,"abstract":"Participants playing tennis have increased by 33% since 2020. Vertical ball bounce (BB) ≥ 80% relative to concrete is the standard for all courts. The 0.5-kg Clegg impact soil tester (CIST) measures surface hardness (gravities, g) and is the standard for predicting tennis BB. No published research is available for critical CIST values to satisfy BB standards. TruFirm, used in golf, measures deformation depth (mm) and shows potential to relate to tennis BB as an alternative to CIST. To that end, tennis BB and 0.5-kg CIST were investigated over several years on cool-season turf species at the UMass Troll Turf Research Center under tennis match play. Published paired CIST and BB (n = 454) were combined with 3 years of current paired data (n = 1870) to assess BB and CIST. TruFirm and BB (n = 1276) were also compared. Regression models were developed for CIST and TruFirm to establish statistically derived BB standards. Field validation (model predicted vs. observed BB) for TruFirm and CIST was tested (n = 1254). The CIST device was more effective in predicting tennis BB based on r2-values (=0.45), validation r2 (=0.53), and with a smaller statistical bias (<1 SE) compared to TruFirm (r2-values ranging from 0.27 to 0.41), validation r2 (=0.40) with a larger statistical bias (>1 SE). Hardness of 150–170 g using CIST and TruFirm values of 5.8–9.6 mm were statistically derived (95% confidence interval) values for BB standards. TruFirm was not as effective as CIST with two to five times the bias in predicting tennis BB. Only 13.7% of all BB impacts (318 of 2326) satisfied ≥80% concrete standard. Similarly, 14.5% of all CIST impacts (≥150 g) closely approximated BB standards.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/csc2.70109","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Alternatives to colchicine for obtaining doubled haploids in tropical white corn 秋水仙碱在热带白玉米中获得双倍单倍体的替代品

IF 1.9 3区农林科学

Crop Science Pub Date : 2025-07-09 DOI: 10.1002/csc2.70110

Bruno Figueiró Fregonezi, Iran de Azevedo Duarte, Juliana Moraes Machado de Oliveira, Vitor Joaquim de Lucena, Maria Eduarda Alves de Oliveira, João Otavio Gonçalves dos Santos, Lucas Alves Camilo, Josué Maldonado Ferreira

{"title":"Alternatives to colchicine for obtaining doubled haploids in tropical white corn","authors":"Bruno Figueiró Fregonezi, Iran de Azevedo Duarte, Juliana Moraes Machado de Oliveira, Vitor Joaquim de Lucena, Maria Eduarda Alves de Oliveira, João Otavio Gonçalves dos Santos, Lucas Alves Camilo, Josué Maldonado Ferreira","doi":"10.1002/csc2.70110","DOIUrl":"10.1002/csc2.70110","url":null,"abstract":"Colchicine is a widely used and effective agent for producing doubled haploid inbred lines in maize. However, its high toxicity and cost have prompted the search for safer and more economical alternatives for chromosome doubling. This study aimed to evaluate the effectiveness of pronamide and amiprophos-methyl solutions as alternatives to colchicine for chromosome doubling in tropical white corn (Zea mays L.), to identify the potential for spontaneous chromosomal doubling in tropical white maize populations, and to compare the haploid induction rates of three tropicalized inducer lines (CIM2GTAIL-P1, CIM2GTAIL-P2, and CIM2GTAIL-P3) along with their three hybrid combinations in crosses with tropical white corn. Eight populations of white corn were pollinated by six inducer genotypes, and the haploid induction rates were estimated. At the V2 stage, the roots of the haploid seedlings were washed and immersed in four treatments for chromosome doubling: a negative control with water, an amiprofos-methyl and pronamide solution, a colchicine solution, and a pronamide solution. Parameters such as self-pollination rate, self-pollination efficiency, survival, reproduction, and overall success were estimated. The amiprofos-methyl and pronamide treatment proved to be an effective alternative for the production of doubled haploid lines in tropical white corn, successfully replacing the use of colchicine. The tropical white corn populations presented spontaneous chromosome doubling rates ranging from 7.9% to 38.3%. The CIM2GTAIL-P1 × CIM2GTAIL-P2 hybrid demonstrated the highest haploid induction rate, with an average of 12.9%.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic evaluation of interspecific hybrids between a sexual synthetic autotetraploid P. plicatulum × P. aff. wrightii apomictic tetraploid, of the Plicatula group of Paspalum 雀稗雌雄合成同源四倍体P. plicatulum与P. af . wright无融合四倍体种间杂交的遗传评价

IF 1.9 3区农林科学

Crop Science Pub Date : 2025-07-09 DOI: 10.1002/csc2.70118

Patricia E. Novo, Sabina F. Novo, Camilo L. Quarin, Francisco Espinoza

{"title":"Genetic evaluation of interspecific hybrids between a sexual synthetic autotetraploid P. plicatulum × P. aff. wrightii apomictic tetraploid, of the Plicatula group of Paspalum","authors":"Patricia E. Novo, Sabina F. Novo, Camilo L. Quarin, Francisco Espinoza","doi":"10.1002/csc2.70118","DOIUrl":"10.1002/csc2.70118","url":null,"abstract":"Paspalum wrightii Hitchc. & Chase, of the Plicatula group of Paspalum, is characterized by vigorous indefinite rhizomes and erect stems. It grows in wet, roadside ditches or periodically flooded areas. It is a multiploid species with 2n = 20 diploid and 2n = 40 tetraploid chromosomes. Cytoembryological reports indicate that the diploid cytotype reproduces sexually, while a representative of the tetraploid cytotype is facultatively apomictic with some potential to generate siblings through sexual means. One botanically unclassified species resembling P. wrightii, named herein P. aff. wrightii, was collected in this geographic region. This accession was determined to be facultative apomictic and was used as the male parent in crossing with a colchicine-induced sexual autotetraploid genotype of Paspalum plicatulum Michx., resulting in 28 interspecific hybrids. The meiotic chromosome pairing behavior of both parents and their hybrids was primarily bivalent and quadrivalent, indicating that the tetraploid P. aff. wrightii is a segmental alloploidy. This was supported by the chromosome-pairing behavior in the hybrids recovered when the accession was crossed with the induced autotetraploid P. plicatulum. The P. plicatulum × P. aff. wrightii hybrids segregated by sexual and apomictic reproductive modes. In general, most interspecific hybrids inherited self-incompatibility from the female parent and others had very low fertility. The presence of sexual and apomictic hybrids in the progeny suggests that gene transfer through hybridization is a feasible tool in breeding programs for forage grass species in the Plicatula group.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantification of dollar spot inoculum (Clarireedia spp.) in bentgrass clippings using droplet digital polymerase chain reaction (ddPCR) 用液滴数字聚合酶链反应（ddPCR）定量测定弯草剪枝中的斑点菌（Clarireedia spp.）

IF 1.9 3区农林科学

Crop Science Pub Date : 2025-07-09 DOI: 10.1002/csc2.70121

Krishna Ghimire, Yonghyun Kim, Jinyoung Y. Barnaby, Scott E. Warnke

{"title":"Quantification of dollar spot inoculum (Clarireedia spp.) in bentgrass clippings using droplet digital polymerase chain reaction (ddPCR)","authors":"Krishna Ghimire, Yonghyun Kim, Jinyoung Y. Barnaby, Scott E. Warnke","doi":"10.1002/csc2.70121","DOIUrl":"10.1002/csc2.70121","url":null,"abstract":"Dollar spot, caused by the fungal pathogen Clarireedia jacksonii, is one of the most economically damaging and globally prevalent turfgrass diseases. Accurate assessment of cultivar resistance is critical for breeding programs and effective disease management. However, evaluating resistance is challenged by the lack of precise tools to quantify pathogen load under field conditions. In this study, we developed and validated a highly sensitive droplet digital polymerase chain reaction (ddPCR) assay for quantifying C. jacksonii DNA in clipping samples collected from three creeping bentgrass cultivars (007XL, Penncross, Oakley) and one colonial bentgrass cultivar (Musket) grown under natural infection in the National Turfgrass Evaluation Program (NTEP) Fairway trial in Maryland. The ddPCR assay, paired with newly designed primers, reliably detected C. jacksonii DNA at concentrations as low as 1 × 10−14 g without requiring standard curves. A strong positive correlation was observed between C. jacksonii DNA quantity and field-assessed disease severity. Notably, resistant cultivars maintained relatively low pathogen levels and delayed symptom development during early-season epidemics, whereas the susceptible cultivar, Penncross, exhibited higher early-season DNA levels and two distinct epidemic cycles. These findings suggest that resistant cultivars may either suppress early C. jacksonii buildup or tolerate higher pathogen loads before symptom onset. This study demonstrates the utility of ddPCR as a precise, field-applicable tool for monitoring C. jacksonii dynamics, offering critical insights for improving cultivar selection, optimizing fungicide timing, and enhancing sustainable disease management strategies in turfgrass systems.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/csc2.70121","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144589912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biomass, stalk, grain, and root crown characteristics of silage maize hybrids interseeded with alfalfa 青贮玉米与苜蓿杂交的生物量、茎秆、籽粒和根冠特性

IF 1.9 3区农林科学

Crop Science Pub Date : 2025-07-08 DOI: 10.1002/csc2.70105

John H. Grabber, Claire P. Northup

{"title":"Biomass, stalk, grain, and root crown characteristics of silage maize hybrids interseeded with alfalfa","authors":"John H. Grabber, Claire P. Northup","doi":"10.1002/csc2.70105","DOIUrl":"10.1002/csc2.70105","url":null,"abstract":"Adoption of alfalfa (Medicago sativa L.)–maize (Zea mays L.) intercropping in cold temperate regions is limited in part by reduced forage mass of silage maize. A 2-year trial in Wisconsin quantified the impact of interseeding alfalfa immediately after maize planting on biomass, stalk, grain, and root characteristics of 10 hybrids no-till planted in May. Soil moisture and plant traits were assessed during crop growth. Maize was harvested in September and then root crowns were dug and phenotyped. Interseeding reduced forage biomass by 18% and 27% in hybrid groups classified as having a small or large reduction in biomass production in response to interseeding, and by 16% in 2021 and 29% in 2022 relative to solo-seeded maize. Biomass of solo-seeded maize was not affected by hybrid group or year. Interseeding with alfalfa reduced dry matter concentration, N status, and development of stalks, grain, and roots of maize. Differences between cropping systems for plant traits were greater in 2022 when dry soil restricted growth of interseeded maize to a greater degree than solo-seeded maize. When interseeded, hybrids in the small biomass reduction group had greater kernel counts, plant height, light absorption, early season N status, and suffered less depression in dry matter concentration at harvest than hybrids in the large biomass reduction group. Our results suggest hybrids can differ in their suitability for intercropping with alfalfa.","PeriodicalId":10849,"journal":{"name":"Crop Science","volume":"65 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/csc2.70105","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144581820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Erratum to: Postharvest anthracnose disease in mango (Mangifera indica L.) fruit: Sustainable alternatives for the control 芒果（Mangifera indica L.）果实采后炭疽病：控制的可持续替代品

IF 1.9 3区农林科学

Crop Science Pub Date : 2025-07-07 DOI: 10.1002/csc2.70114

引用次数: 0