检索结果-内蒙古大学图书馆

Assessing the role of genotype by environment interaction as determinants of maize grain yield and lodging resistance

引用

BMC PLANT BIOLOGY 2025年第1期25卷 1-18页

作者： Yue, Haiwang Olivoto, Tiago Bu, Junzhou Wei, Jianwei Liu, Pengcheng Wu, Wei Nardino, Maicon jiang, xuwen Hebei Acad Agr & Forestry Sci Dryland Farming Inst Hebei Prov Key Lab Crops Drought Resistance Res Hengshui 053000 Hebei Peoples R China Qingdao Agr Univ Maize Res Inst Qingdao 266109 Peoples R China Univ Fed Santa Catarina Agrarian Sci Ctr Dept Plant Sci Florianopolis SC Brazil Hainan Univ Sanya Inst Breeding & Multiplicat Sch Breeding & Multiplicat Sanya 572025 Peoples R China Univ Fed Vicosa Dept Agron Vicosa MG Brazil

Background The development of superior summer maize hybrids with high-yield potential and essential agronomic traits, such as resistance to lodging, is crucial for ensuring the sustainability of maize cultivation. However, the task of identifying and breeding genotypes that exhibit exceptional performance and stability across multiple environment conditions, while considering a wide range of traits, is challenging. Given the backdrop of global climate change, understanding which climate variables and soil properties most significantly impact environmental similarity is essential for selecting hybrids with improved adaptability to regions with diverse climatic and soil conditions. This study aimed to integrate envirotyping techniques (ETs) with a multi-trait selection approach to carry out a comprehensive evaluation of maize genotypes for performance and stability. Results The grain yields of 13 maize hybrids, along with their four critical agronomic parameters, were assessed in the Huang-Huai-Hai Plain of China across 40 locations in eight provinces. By considering 20 years of climatic factors and soil covariates, these 40 locations were divided into six mega-environments (MEs) based on similar long-term weather patterns and soil characteristics. Additive main effects and multiplicative interaction (AMMI) analyses revealed that genotype (G), environment (E), and the GxE interaction had significant effects on all agronomic parameters (P < 0.001). The mean performance and stability of the genotypes in each mega-environment were assessed, allowing for the identification of superior hybrids using the multi-trait stability index (MTSI). In two of the MEs (ME2 and ME3), only two hybrids, HY321 and HY9112, were selected concurrently. Conclusion Overall, this study provides valuable insights into the effects of ETs on maize hybrids and enhances our understanding of GxE interactions in multi-environment trials. This understanding is essential for improving maize cultivation

关键词： Maize Mega-environment Genotype-environment interaction Envirotyping techniques

来源：评论

学校读者我要写书评

暂无评论

Identification of maize seed vigor under different accelerated aging times using hyperspectral imaging and spectral deep features

引用

COMPUTERS AND ELECTRONICS IN AGRICULTURE 2025年 231卷

作者： Zhu, Hongfei Yang, Ranbing Lu, Miaomiao Shi, Weiming Sun, Wenbin Lv, Danyang Liu, Hang Wu, Qiong jiang, xuwen Han, Zhongzhi Hainan Univ Haikou 570100 Peoples R China Qingdao Agr Univ Qingdao 266109 Peoples R China Minist Agr & Rural Affairs Key Lab Trop Intelligent Agr Equipment Sanya 572025 Peoples R China

Maize seed vigor plays a crucial role in improving crop yield. This study proposes a novel method for detecting maize seed vigor via the MAC-seq2seq model. The model successfully reconstructs the spectral sequence of maize seeds. After optimization and iteration, the model achieved a root mean square error (RMSE) of 2.818 x 10-6 on the test set. Subsequently, deep spectral features were extracted using the pretrained MAC-seq2seq, and an ensemble learning model was applied to detect the seed aging hours, with an accuracy of 93.33 %. Additionally, by labeling the spectral sequences with seed vigor index, the combination of ensemble learning and deep spectral features achieved a detection accuracy of 97.62 % for seed vigor. Ultimately, an online seed vigor detection platform was constructed, which effectively measures seed aging time and vigor, was constructed. This study provides an efficient strategy for the nondestructive detection of maize seed vigor, significantly enhancing detection accuracy.

关键词： Maize Seed Vigor Spectral Reconstruction Deep Features Ensemble Learning

来源：评论

学校读者我要写书评

暂无评论

Deciphering the role of genotype-by-environment interaction in summer maize hybrids based on multiple traits using envirotyping techniques and genotype by yield x trait approaches

引用

FIELD CROPS RESEARCH 2025年 326卷

作者： Yue, Haiwang Olimpio, das Gracas Dias Kaio Zhu, Jiashuai Bu, Junzhou Wei, Jianwei Liu, Pengcheng Yang, Haoxiang jiang, xuwen Hebei Acad Agr & Forestry Sci Dryland Farming Inst Hebei Prov Key Lab Crops Drought Resistance Res Hengshui 053000 Peoples R China Qingdao Agr Univ Coll Agron Qingdao 266109 Peoples R China Univ Fed Vicosa Dept Gen Biol BR-36571000 Vicosa MG Brazil Univ Melbourne Fac Sci Parkville Vic 3052 Australia

Context: The use of high-yielding, stable, and widely adaptable summer maize hybrids is essential for the sustainable cultivation of maize globally. However, contemporary breeding programs face challenges in identifying genotypes that exhibit consistent performance while maintaining desired agronomic characteristics across diverse environments. Dynamic shifts in global meteorological and edaphic conditions have impacted the evaluation of summer maize performance in China's multi-environment trials (METs). Multi-perspective analysis of genotype-by-environment interactions (GEI) is then essential for characterizing maize yield stability and trait expression across agroecological zones. Objective: This study aims to comprehensively evaluate the performance and stability of maize genotypes in the Huang-Huai-Hai region by integrating environmental techniques (ETs) with multi-trait selection methods. Methods: Twenty-eight maize hybrids and a check hybrid (ZD958) were evaluated across 29 locations in the Huang-Huai-Hai region of China during the 2019-2021 cropping seasons, using a randomized complete block design (RCBD) with three replications. Results: Based on 30 years (1993-2023) of environmental data, which included 19 meteorological and 6 soil physicochemical factors, the ETs classified the 29 locations across eight provinces into six distinct mega-environments (MEs). The additive main effects and multiplicative interaction (AMMI) model analysis revealed that genotype (G), environment (E), and their interaction (GxE) significantly influenced (p < 0.05) for all agronomic parameters from 2019 to 2021. The combined performance of grain yield and other agronomic traits-such as growth period, plant height, ear height, lodging rate, barren stalk rate, grain moisture content at harvest, ear row number, bare tip length, and 100-grain weight-across different MEs was assessed using the genotype by yield x trait (GYT) biplot approach. The integration of GYT biplots with ETs effe

关键词： Multi-environment trials Environmental techniques Genotype by environment interaction Mega-environments Maize (Zea mays L.) GYT biplot

来源：评论

学校读者我要写书评

暂无评论

Roles of Gibberellin and Auxin in Promoting Seed Germination and Seedling Vigor in Pinus massoniana

引用

FOREST SCIENCE 2014年第2期60卷 367-373页

作者： Zhao Guangwu jiang xuwen Zhejiang Agr & Forestry Univ Coll Agr & Food Sci Key Lab Qual Improvement Agr Prod Zhejiang Prov Linan Zhejiang Peoples R China Qingdao Agr Univ Coll Agron & Plant Protect Shangdong Prov Key Lab Dryland Technol Qingdao Shandong Peoples R China

Masson pine (Pinus massoniana Lamb.) is an important timber species and is widely planted in southern China. A large quantity of seed is required for sowing each year. However, low germination in the nursery has resulted in low seedling yields with a consequent negative impact on the Masson pine afforestation program. The purpose of our study was to determine whether gibberellin (GA(3)) or indole-3-acetic acid (IAA) would be more effective in propagating the species from seeds for afforestation and to elucidate their effects on seed respiration and endogenous hormone levels. Seeds were soaked in GA(3) and IAA solutions of different concentrations at 25 degrees C in the dark for 24 hours, and a germination test was conducted. Seed respiration was measured indirectly by estimating oxygen consumption in a closed system. Endogenous hormone levels were analyzed by gas chromatography/mass spectrometry (GC/MS). The germination test showed that the most significant promotion of seed germination and seedling vigor occurred at 5 x 10(-5) M GA(3) in both varieties and that the effects of IAA were variety dependent. Oxygen-sensing measurements showed that increased metabolism time, critical oxygen pressure, and relative germination time were decreased and the oxygen metabolism rate was increased in IAA-and GA3-treated seeds. GC/MS analysis showed that the application of 5 x 10(-5) M GA(3) decreased the endogenous abscisic acid (ABA) content, but increased IAA and GA(1), levels. Our experiment suggests that exogenous GA(3) improves seed germination and seedling vigor of Masson pine through promoting seed respiration or lowering the ABA level and stimulating IAA and GA(1), biosynthesis.

关键词： Pinus massoniana seed vigor oxygen-sensing auxin gibberellin

来源：评论

学校读者我要写书评

暂无评论

QTL mapping of coleorhiza length in maize (Zea mays L.) under two germination environmental conditions

引用

PLANT BREEDING 2011年第6期130卷 625-632页

作者： jiang, xuwen Tian, Baohua Zhang, Weimin Wang, Guoying Wang, Jianhua China Agr Univ State Key Labs Agrobiotechnol Beijing 100193 Peoples R China China Agr Univ Beijing Key Lab Crop Genet Improvement Beijing 100193 Peoples R China Chinese Acad Agr Sci Inst Crop Sci Beijing 100081 Peoples R China

In our present study, using molecular marker technology, we aimed to identify the genetic factors controlling the length of coleorhiza during seed germination based on a population of recombinant inbred lines (RILs) derived from Xinzi517 x B73. The genetic linkage map was constructed with 255 simple sequence repeat markers, which covered 2399 cM of maize genome with an average mapping distance of 9.4 cM. We detected a total of 10 putative quantitative trait loci (QTLs) using composite interval mapping, among which six QTLs were detected on chromosomes 1, 2, 7 and 9 (10 degrees C, 28 day), whereas four QTLs were detected on chromosomes 1, 2, 3 and 9 (25 degrees C, 7 day). The percentage of phenotypic variance (R-2) explained by QTL ranged from 5.18 to 16.67 (10 degrees C, 28 day) and 6.73-11.46 (25 degrees C, 7 day), respectively. These results provided the foundation for detecting additional QTL and discovering more favourable alleles for high vigour seed of maize in future study.

关键词： maize coleorhiza length seed germination SSR QTL

来源：评论

学校读者我要写书评

暂无评论

A study on genotype x environment interactions for the multiple traits of maize hybrids in China

引用

AGRONOMY JOURNAL 2021年第6期113卷 4889-4899页

作者： Yue, Haiwang jiang, xuwen Wei, Jianwei Xie, Junliang Chen, Shuping Peng, Haicheng Bu, Junzhou Hebei Acad Agr & Forestry Sci Dryland Farming Inst Hebei Prov Key Lab Crops Drought Resistance Res Hengshui 053000 Hebei Peoples R China Qingdao Agr Univ Maize Res Inst Coll Agron Qingdao 266109 Shandong Peoples R China

The correct interpretation of the adaptability and stability of maize (Zea mays L.) hybrids in different ecological environments is very important for plant breeders. Additive main effect and multiplicative interaction model and genotype main effects and genotype x environment interaction biplot are the two most popular methods in the analysis of genotype x environment interaction in multienvironment trials. We conducted an experiment designed to examine and evaluate the adaptability and stability of four agronomic traits of 19 tested maize genotypes in two consecutive growth cycles across seven provinces including 37 locations using a randomized completely block design with three replicates. The combined ANOVA for all traits showed that the effect of genotype, environment, and genotype x environment interaction were significant at 0.1% probability levels. In order to evaluate multiple agronomic traits more accurately, multitrait stability index (MTSI) as an emerging selection method based on mean performance and stability was adopted. Agronomic trait grain yield (GY) was positively correlated with grain weight per ear and growth period. In addition, it was also found that GY and bar tip length showed obvious negative correlation. The MTSI is very helpful for breeders who hope to select mean performance and stability based on a variety of agronomic traits because it provides a convenient selection process while taking into account the relevant results of the traits.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Seed biostimulant Bacillus sp. MGW9 improves the salt tolerance of maize during seed germination

引用

AMB EXPRESS 2021年第1期11卷 74页

作者： Li, Heqin Yue, Haiwang Li, Li Liu, Yu Zhang, Haiyan Wang, Jianhua jiang, xuwen Qingdao Agr Univ Dryland Technol Key Lab Shandong Prov Qingdao 266109 Peoples R China Hebei Acad Agr & Forestry Sci Dryland Farming Inst Hengshui 053000 Peoples R China China Agr Univ Seed Sci & Technol Res Ctr Beijing 100193 Peoples R China

Crop performance is seriously affected by high salt concentrations in soils. To develop improved seed pre-sowing treatment technologies, it is crucial to improve the salt tolerance of seed germination. Here, we isolated and identified the strain Bacillus sp. MGW9 and developed the seed biostimulant MGW9. The effects of seed biopriming with the seed biostimulant MGW9 in maize (Zea mays L.) under saline conditions were studied. The results show that the strain Bacillus sp. MGW9 has characteristics such as salt tolerance, nitrogen fixation, phosphorus dissolution, and indole-3-acetic acid production. Seed biopriming with the seed biostimulant MGW9 enhanced the performance of maize during seed germination under salinity stress, improving the germination energy, germination percentage, shoot/seedling length, primary root length, shoot/seedling fresh weight, shoot/seedling dry weight, root fresh weight and root dry weight. Seed biostimulant MGW9 biopriming also alleviated the salinity damage to maize by improving the relative water content, chlorophyll content, proline content, soluble sugar content, root activity, and activities of superoxide dismutase, catalase, peroxidase and ascorbate peroxidase, while decreasing the malondialdehyde content. In particular, the field seedling emergence of maize seeds in saline-alkali soil can be improved by biopriming with the seed biostimulant MGW9. Therefore, maize seed biopriming with the seed biostimulant MGW9 could be an effective approach to overcoming the inhibitory effects of salinity stress and promoting seed germination and seedling growth.

关键词： Salt stress Seed biostimulant Seed germination Zea mays Bacillus sp

来源：评论

学校读者我要写书评

暂无评论

A Study on Genotype-by-Environment Interaction Analysis for Agronomic Traits of Maize Genotypes Across Huang-Huai-Hai Region in China

引用

Phyton-International Journal of Experimental Botany 2022年第1期91卷 57-81页

作者： Haiwang Yue Jianwei Wei Junliang Xie Shuping Chen Haicheng Peng Hongmei Cao Junzhou Bu xuwen jiang Dryland Farming Institute Hebei Academy of Agriculture and Forestry SciencesHebei Provincial Key Laboratory of Crops Drought Resistance ResearchHengshui053000China Soil and Fertilizer Workstation of Hengshui Agriculture and Rural Bureau Hengshui053000China Maize Research Institute/College of Agronomy Qingdao Agricultural UniversityQingdao266109China

Facing the trend of increasing population,how to increase maize grain yield is a very important issue to ensure food *** this study,28 nationally approved maize hybrids were evaluated across 24 different climatic conditions for two consecutive years(2018-2019).The purpose of this study was to select high-yield with stable genotypes and identify important agronomic traits for maize breeding program *** results of this study showed that the genotypeenvironment interaction effects of the 12 evaluated agronomic traits was highly significant(P<0.001).We introduced a novel multi-trait genotype-ideotype distance index(MGIDI)to select genotypes based on multiple agronomic *** selection process exhibited by this method is unique and easy to understand,so the MGIDI index will have more and more important applications in future multi-environment trials(METs)*** genotypes selected by the MGIDI index were G22,G10,G12 and G1 as the high yielding and stable *** parents of these selected genotypes have the ability to play a greater role as the basic germplasm in the breeding process.A new form of genotype(G)main effects and genotype(G)-by-environment(E)interaction(GGE)technician,genotypeyieldtrait(GYT)biplot,based on multiple traits for genotypes selection was also applied in this *** GYT biplot ranked genotypes by combining grain yield with other evaluated agronomic traits,and displayed the distribution of their traits,namely strengths and weaknesses.

关键词： GEI MGIDI GYT biplot AMMI model GGE

来源：评论

学校读者我要写书评

暂无评论

The synthesis of an iron tailings-based geopolymer with synergistic electromagnetic wave consumption property

引用

ENVIRONMENTAL RESEARCH 2025年 268卷 120744页

作者： Wang, Tianyu Ning, xuwen Yang, Lang Rao, Feng jiang, Kaixi Fuzhou Univ Sch Mat Sci & Engn Fuzhou 350108 Fujian Peoples R China Fuzhou Univ Zijin Sch Geol & Min Fuzhou 350108 Fujian Peoples R China Fuzhou Univ Fujian Key Lab Green Extract & High Value Utilizat Fuzhou 350108 Fujian Peoples R China

In this study, combination of wave absorption materials with different loss mechanisms are added into iron ore tailings-blast furnace slag (IOT-BFS) based geopolymers. The employed materials are hollow glass microsphere (HGM), carbon nanotubes (CNT) and carbonyl iron powder (CIP). Microstructures of the geopolymers are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and concrete porous structure analyzer. Conductivity and electromagnetic absorption property of the geopolymers are measured by a conductivity tester and a vector network analyzer (VNA). As increasing the content of wave absorption materials, compressive strength of the geopolymer decreased from 60.5 to 33.8 MPa. Compared with geopolymers containing HGM and CNT, wave absorption band below -5 dB of the geopolymers with HGM and CIP was wider, particularly at frequencies below 7 GHz, due to the synergism of space and magnetic loss. Its absorption bandwidth with the reflection loss less than -5 dB reaches 15.6 GHz. This study gives a clue for preparation of geopolymers with satisfactory electromagnetic wave absorption properties in the utilization as construction materials.

关键词： Geopolymers Electromagnetic wave absorption Iron ore tailings Microstructure

来源：评论

学校读者我要写书评

暂无评论

Manganese-based virus-mimicking nanomedicine with triple immunomodulatory functions inhibits breast cancer brain metastasis

引用

BIOMATERIALS 2025年 320卷 123262-123262页

作者： Zhao, Zhenhao Zhou, Jingyi Li, xuwen Zhang, Tongyu Tian, Zonghua Sun, Tao jiang, Chen Fudan Univ Sch Pharm Dept Pharmaceut Minist EducKey Lab Smart Drug DeliveryState Key Shanghai 201203 Peoples R China MOE Frontiers Ctr Brain Sci Shanghai 201203 Peoples R China Fujian Med Univ Affiliated Hosp 1 Natl Reg Med Ctr Dept Digest Dis Binhai Campus Fuzhou 350212 Peoples R China

Hindered by the challenges of blood-brain barrier (BBB) hindrance, tumor heterogeneity and immunosuppressive microenvironment, patients with breast cancer brain metastasis have yet to benefit from current clinical treatments, experiencing instead a decline in quality of life due to radiochemotherapy. While virus-mimicking nanosystems (VMN) mimicking viral infection processes show promise in treating peripheral tumors, the inability to modulate the immunosuppressive microenvironment limits the efficacy against brain metastasis. Accordingly, a VMN-based triple immunomodulatory strategy is initially proposed, aiming to activate innate and adaptive immune responses and reverse the immunosuppressive microenvironment. Here, manganese-based virus-mimicking nanomedicine (Vir-HD@HM) with intratumoral drug enrichment is engineered. Vir-HD@HM can induce the immune response through the activation of cGAS-STING by mimicking the in vivo infection process of herpesviruses. Meanwhile, DNAzyme mimicking the genome can rescue the epigenetic silencing of PTEN with the assistance of Mn2+, thus ameliorating the immunosuppressive metastatic microenvironment and achieving synergistic sensitizing therapeutic efficacy. In vivo experiments substantiate the efficacy of VirHD@HM in recruiting NK cells and CD8+ T cells to metastatic foci, inhibiting Treg cells infiltration, and prolonging murine survival without adjunctive radiochemotherapy. This study demonstrates that Vir-HD@HM with triple immunomodulation offers an encouraging therapeutic option for patients with brain metastasis.

关键词： Breast cancer brain metastasis Virus-mimicking nanosystem Immune activation Immunosuppressive microenvironment regulation PTEN cGAS-STING

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：