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Attributes of Specialized Households'Resilience and Its Impact on Rural Industrial Advancement:A Case Study of National Musical Instrument Production Specialized Households in Lankao County,Henan,China
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作者 WU Nalin WEI Yike +4 位作者 FAN Sizhe LI Li SUN Yufan ZHANG Yan SHU Yan 《Chinese Geographical Science》 SCIE CSCD 2024年第3期383-400,共18页
Specialized households serve as the primary units within specialized villages in China,and their capacity to withstand risks and external influences significantly shapes the future trajectory of specialized villages a... Specialized households serve as the primary units within specialized villages in China,and their capacity to withstand risks and external influences significantly shapes the future trajectory of specialized villages and the overall vitality of the rural economy.In this study,we established a measurement indicator system based on the definition of specialized households’resilience,elucidating the logical connection between specialized households’resilience and rural industrial development in China.The musical instrument industry in Lankao County,Henan Province of China,was employed as a case;survey data,the entropy method,and an obstacle diagnosis model were used to examine how instrument production specialized households responded to the challenges posed by Corona Virus Disease 2019(COVID-19)and the tightening of national environmental protection policies,yielding the following key findings:1)there exists substantial variation in the comprehensive resilience levels among different specialized households;2)the ability to learn and adapt is the most significant contributor to the overall resilience level of specialized households;3)technological proficiency and access to skilled talent emerge as pivotal factors influencing specialized households’resilience;4)the positioning of specialized households within the industrial supply chain and the stability of their income have a direct bearing on their resilience level.The influence of specialized households’resilience on industrial development primarily manifests in the following ways:stronger resilience correlates with increased stability in production and sales,fostering a more proactive approach to future actions.However,heightened exposure to the external macroeconomic environment can lead to a higher rate of export reduction.To enhance the development resilience of entities like specialized households and family farms,and to invigorate rural economic development,escalating investments in rural science and technology and prioritizing the training of technical talent become imperative. 展开更多
关键词 RESILIENCE specialized households rural industry Lankao county China
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Development of Rural Tourism Industry under the Background of New Rural Construction : A Case Study of Henghe of Boluo County in Huizhou City
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作者 Jialing DENG Yanping ZHONG Xiulian LIN 《Asian Agricultural Research》 2024年第3期14-17,共4页
Henghe Town in Boluo County of Huizhou is taken as the research object for analysis.The research and analysis on the tourism industry in Henghe Town of Boluo County are conducted,and the basic situation of rural touri... Henghe Town in Boluo County of Huizhou is taken as the research object for analysis.The research and analysis on the tourism industry in Henghe Town of Boluo County are conducted,and the basic situation of rural tourism construction in Henghe Town is sorted out.The forms of tourism industry in Henghe Town and the problems in rural tourism development are identified,and some targeted suggestions and countermeasures are proposed.It hopes to provide ideas and references for the construction of beautiful rural areas in mountainous areas of Guangdong Province,and theoretical reference and practical significance for the development of rural tourism in mountainous areas of Guangdong Province. 展开更多
关键词 New COUNTRYSIDE RURAL TOURISM Henghe TOWN in Boluo county
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Automated machine learning for rainfall-induced landslide hazard mapping in Luhe County of Guangdong Province,China
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作者 Tao Li Chen-chen Xie +3 位作者 Chong Xu Wen-wen Qi Yuan-dong Huang Lei Li 《China Geology》 CAS CSCD 2024年第2期315-329,共15页
Landslide hazard mapping is essential for regional landslide hazard management.The main objective of this study is to construct a rainfall-induced landslide hazard map of Luhe County,China based on an automated machin... Landslide hazard mapping is essential for regional landslide hazard management.The main objective of this study is to construct a rainfall-induced landslide hazard map of Luhe County,China based on an automated machine learning framework(AutoGluon).A total of 2241 landslides were identified from satellite images before and after the rainfall event,and 10 impact factors including elevation,slope,aspect,normalized difference vegetation index(NDVI),topographic wetness index(TWI),lithology,land cover,distance to roads,distance to rivers,and rainfall were selected as indicators.The WeightedEnsemble model,which is an ensemble of 13 basic machine learning models weighted together,was used to output the landslide hazard assessment results.The results indicate that landslides mainly occurred in the central part of the study area,especially in Hetian and Shanghu.Totally 102.44 s were spent to train all the models,and the ensemble model WeightedEnsemble has an Area Under the Curve(AUC)value of92.36%in the test set.In addition,14.95%of the study area was determined to be at very high hazard,with a landslide density of 12.02 per square kilometer.This study serves as a significant reference for the prevention and mitigation of geological hazards and land use planning in Luhe County. 展开更多
关键词 Landslide hazard Heavy rainfall Harzard mapping Hazard assessment Automated machine learning Shallow landslide Visual interpretation Luhe county Geological hazards survey engineering
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《植物品种DUS测试原理与技术》课程教学改革与实践
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作者 谢彦周 刘玉秀 +3 位作者 李晓燕 宋瑜龙 陈亮 李学军 《中国种业》 2024年第7期76-78,共3页
在“加快推进种业振兴、打好种业翻身仗”的国家战略指引下,为了更有效地培养种业高级人才,西北农林科技大学农学院种子科学与工程专业教学团队针对《植物品种DUS测试原理与技术》这门课程,从教学内容的优化、教学方法的革新、教学实践... 在“加快推进种业振兴、打好种业翻身仗”的国家战略指引下,为了更有效地培养种业高级人才,西北农林科技大学农学院种子科学与工程专业教学团队针对《植物品种DUS测试原理与技术》这门课程,从教学内容的优化、教学方法的革新、教学实践的加强和课程考核的科学化等多个方面进行了深入的教学改革探索。教学团队成功打造了一套创新教学模式,该模式显著提升了教学质量,并有效地激发了学生的学习积极性,为培养种业领域的优秀人才奠定了坚实基础。 展开更多
关键词 种业 植物品种 duS测试 教学改革 实践
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我国丝瓜品种选育与保护现状及DUS测试
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作者 钟海丰 钟声远 +3 位作者 陈剑锋 陈宇华 林觅 刘中华 《东南园艺》 2024年第2期150-160,共11页
在提倡新质生产力的当下,我国丝瓜优异种质资源的充分挖掘以及品种特异性、一致性和稳定性(DUS)测试执行力和业界影响力的不断强化,对丝瓜产业发展至关重要。回顾了我国近20年来丝瓜种质资源收集保存与评价,及围绕早熟、抗病、耐冷耐热... 在提倡新质生产力的当下,我国丝瓜优异种质资源的充分挖掘以及品种特异性、一致性和稳定性(DUS)测试执行力和业界影响力的不断强化,对丝瓜产业发展至关重要。回顾了我国近20年来丝瓜种质资源收集保存与评价,及围绕早熟、抗病、耐冷耐热、丰产优质等育种目标的品种选育进展,分析了新品种保护现状;解析了丝瓜品种DUS测试指南性状构成、观测方法;归纳总结了近似品种筛选、种子催芽、性状观测和特异性判定在丝瓜品种DUS测试中的应用;指出了丝瓜品种DUS测试中存在测试水平、标准品种、性状表达状态等存在的问题,进一步提出了丝瓜新品种选育创新的发展对策,可综合应用现代育种技术,实现多元化育种目标的产业需求,并适时启动丝瓜品种DUS测试指南修订,以期推动丝瓜产业高质量发展。 展开更多
关键词 丝瓜 品种选育 品种保护 duS测试
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柚类种质资源DUS测试数量性状分级研究
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作者 陈璞 徐振江 +4 位作者 江东 易静 苏穆清 邓超 饶得花 《果树学报》 CAS CSCD 北大核心 2024年第9期1885-1902,共18页
【目的】验证中国柑橘属DUS测试指南中数量性状对柚类种质资源的适应性,为更客观更科学地描述柚类数量性状和修订柑橘属DUS测试指南提供参考。【方法】以中国柑橘属测试指南为标准,对117份柚类种质资源的25个数量性状进行数据采集,根据... 【目的】验证中国柑橘属DUS测试指南中数量性状对柚类种质资源的适应性,为更客观更科学地描述柚类数量性状和修订柑橘属DUS测试指南提供参考。【方法】以中国柑橘属测试指南为标准,对117份柚类种质资源的25个数量性状进行数据采集,根据各性状的特点选择合适的分级方法并确定分级范围。【结果】25个数量性状品种内变异系数在2.96%~26.96%之间,品种间变异系数在10.33%~62.90%之间,大部分数量性状数据的多态性和稳定性较好;根据正态性检验结果对25个数量性状进行分级,得到了25个数量性状的分级标准,与柑橘属测试指南的分级数相比:花萼直径、果形指数、汁胞长度由3级增为5级,花瓣长度、花瓣宽度、叶片长度、叶片宽度、果皮厚度由9级减为7级,花瓣指数、叶形指数、中心柱大小、囊瓣数、果汁含量、可溶性固形物含量由9级减为5级,对果实质量、果实纵径和果实横径3个性状分别制定了柚和葡萄柚的分级标准;该分级标准下25个数量性状的多样性指数变化范围为0.878~1.954,性状间的相似系数分布在-0.69~0.91之间;通过主成分分析得到6个主成分,累积贡献率达72.76%。【结论】初步建立了柚类种质资源25个数量性状的分级指标,对柚类品种的性状评价、利用及良种选育具有一定指导意义,同时为中国柚类种质鉴定和DUS测试指南修订提供参考。 展开更多
关键词 柚类 duS测试 数量性状 分级
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基于DUS测试性状的贵州水稻品种综合分析
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作者 焦爱霞 张丽娜 +5 位作者 李娟 张浩 周欢欢 莫远琪 韦启迪 霍可以 《西南农业学报》 CSCD 北大核心 2024年第8期1655-1668,共14页
【目的】明确贵州水稻品种资源的现状及DUS测试[品种特异性(可区别性,Distinctness)、一致性(Uniformity)和稳定性(Stability)测试]性状在品种评价中的作用,为培育具有优良综合特性的水稻品种时提供表型选择的指导,为高效水稻DUS测试提... 【目的】明确贵州水稻品种资源的现状及DUS测试[品种特异性(可区别性,Distinctness)、一致性(Uniformity)和稳定性(Stability)测试]性状在品种评价中的作用,为培育具有优良综合特性的水稻品种时提供表型选择的指导,为高效水稻DUS测试提供理论支持。【方法】采用遗传多样性分析、相关性分析、聚类分析及主成分分析等方法,研究贵州250份水稻品种的遗传多样性、综合表现及测试性状对品种的测试性能。【结果】表型分析表明,部分目测性状分布集中,倒二叶叶舌形状均为二裂,96.8%的水稻品种具有直立、半直立的生长习性,株型紧凑。剑叶初期,有99.2%的品种表现为直立、半直立状态,而96.0%的品种其基部茎节处于包裹状态;成熟期,91.2%的穗部明显下弯,且97.2%的谷粒外颖呈浅黄色,仅有1份品种的谷粒外颖有修饰色。对14个测量性状进行表型变异及多样性分析,除结实率外,其余性状具有丰富的遗传变异,变异系数为6.51%~20.82%,其中,每穗粒数的变异系数最大,结实率的变异系数最小。相关性分析揭示,各性状间均呈现不同程度的相关性,其中8对性状间达到显著水平,另外43对性状间呈极显著水平。通过聚类分析,测试品种被分为4大主要类群,第Ⅰ类群包含68份样品,其中产量相关性状均值最高;第Ⅱ类群有25份样品,每穗粒数明显高于其他类群;第Ⅲ类群体包括67份样品,具有最矮的茎秆;第IV类群体占总品种数的36%,在穗长、谷粒(糙米)长度方面的均值最高,综合表现最为出色。隶属函数法的分析结果表明,在所测量的性状中,剑叶长度、穗长、谷粒性状等10个性状对测试品种的综合特性有显著影响。在综合评价(D值)最高的10份测试品种中,有8份恢复系、2份杂交种。通过逐步回归分析,建立品种评价的最优回归方程:Y=-0.707+0.032X_(13)+0.003X_(7)+0.008X_(10)+0.003X_(5)+0.04X_(1)+0.02X_(3)+0.025X_(11)-0.003X_(2)+0.001X_(4)-0.1156×10^(-3)X_(8)。多元线性回归分析显示,每穗粒数分布分散,拟合情况不佳,其余13个性状拟合情况则较好。【结论】在水稻测试指南中,除倒二叶的叶舌形状外,目测性状能够有效地区分不同品种;而对于测量性状,每穗粒数表现出最大的变异系数和遗传多样性指数,是判断品种特异性的有效指标。另外,剑叶长度、穗长、谷粒特性等10个性状是影响测试品种综合评价值的关键因素。 展开更多
关键词 水稻 duS测试 目测性状 测量性状 综合分析
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西洋参DUS测试性状筛选与分级研究
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作者 贾文浩 何旭彤 +4 位作者 张洁 李琳 林红梅 雷秀娟 王英平 《种子》 北大核心 2024年第9期122-130,共9页
为筛选适宜用作国内西洋参品种特异性、一致性和稳定性测试(DUS测试)的性状及分级方法,以51份西洋参种质资源为研究材料,经表型观测、统计分析等方法对34个性状进行筛选,并对筛选后的数量性状进行分级。经变异分析、正态性检验及相关性... 为筛选适宜用作国内西洋参品种特异性、一致性和稳定性测试(DUS测试)的性状及分级方法,以51份西洋参种质资源为研究材料,经表型观测、统计分析等方法对34个性状进行筛选,并对筛选后的数量性状进行分级。经变异分析、正态性检验及相关性分析,共筛选出26个适宜用作DUS测试的性状,包含7个质量性状、2个假质量性状、17个数量性状,并利用主成分分析法从中挑选出6个分组性状。采用最小显著差异(LSD)分级法对筛选后的数量性状进行分级,可分为3~9级。 展开更多
关键词 西洋参 种质资源 duS测试性状 分级
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柴胡植物新品种DUS测试指南的研制
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作者 何龙娇 孙哲 +5 位作者 樊阿梅 杜晓蓉 李澳旋 李佳杰 宋芸 乔永刚 《草地学报》 CAS CSCD 北大核心 2024年第10期3121-3132,共12页
柴胡(Bupleurum chinens e DC.)为伞形科柴胡属多年生草本植物,以根入药。柴胡生产中种质混杂较为严重,新品种选育势在必行。为完善柴胡植物新品种特异性、一致性和稳定性(Distinctness,uniformity and stability,DUS)测试指南,本试验... 柴胡(Bupleurum chinens e DC.)为伞形科柴胡属多年生草本植物,以根入药。柴胡生产中种质混杂较为严重,新品种选育势在必行。为完善柴胡植物新品种特异性、一致性和稳定性(Distinctness,uniformity and stability,DUS)测试指南,本试验收集了22份不同产地柴胡,对二年生与三年生柴胡基于形态学性状开展了DUS测试指南的研制,与原指南相比,增加了根的产量与含量相关的性状,最终确定了41个测试性状,其中包括24个必测的基本性状,17个选测性状;有质量性状0个、假质量性状15个和数量性状26个;涉及到植株性状6个、茎性状4个、叶性状7个、基生叶性状7个、花性状6个、根性状10个、生育期性状1个。本指南为我国柴胡性状测试、新品种的授权提供了支撑,对柴胡新品种选育具有重大意义。 展开更多
关键词 柴胡 duS 性状
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新时期水稻新品种保护和DUS测试现状与问题探讨
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作者 李阳阳 李剑 +6 位作者 周欣兴 荆若男 李丹 孙亚伟 苏一钧 胡婷婷 刘亚菊 《中国稻米》 北大核心 2024年第2期51-56,共6页
分析了1999—2022年我国水稻新品种保护申请量和授权量,阐述了我国新品种保护和DUS测试的发展现状,剖析了该行业存在的问题,进而提出了加强水稻新品种保护和优化DUS测试的对策建议,以期为新时期我国水稻新品种保护和DUS规范测试提供有... 分析了1999—2022年我国水稻新品种保护申请量和授权量,阐述了我国新品种保护和DUS测试的发展现状,剖析了该行业存在的问题,进而提出了加强水稻新品种保护和优化DUS测试的对策建议,以期为新时期我国水稻新品种保护和DUS规范测试提供有益参考。 展开更多
关键词 水稻 新品种保护 duS测试
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菊花新品种DUS测试指南测试性状的选择
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作者 徐旭 苏江硕 +5 位作者 邓波 张飞 陈素梅 房伟民 陈发棣 管志勇 《中国种业》 2024年第3期108-113,共6页
随着我国菊花育种活跃度的不断提升,菊花品种的形态多样性不断丰富,迫切需要提高菊花DUS测试指南适用性。本研究连续2年对210份形态多样的菊花品种进行观测统计,以NY/T 2228—2012《植物新品种特异性、一致性和稳定性测试指南菊花》涉及... 随着我国菊花育种活跃度的不断提升,菊花品种的形态多样性不断丰富,迫切需要提高菊花DUS测试指南适用性。本研究连续2年对210份形态多样的菊花品种进行观测统计,以NY/T 2228—2012《植物新品种特异性、一致性和稳定性测试指南菊花》涉及的68个性状及本研究群体中发现的9个多样性性状或表达状态为观测依据,对现有菊花品种DUS测试指南做出优化,建议在2012年版测试指南中增加9个测试性状,剔除1个选测性状,并调整2个性状的名称表述,旨在提高菊花新品种鉴定的效率。 展开更多
关键词 菊花 duS指南 形态多样性 测试性状
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谷子DUS测试标准品种指纹图谱的构建与应用
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作者 史慎奎 祁东梅 +2 位作者 王春芳 王玉芳 蔡爽 《山西农业科学》 2024年第1期10-18,共9页
谷子遗传资源多样性的研究对谷子基础研究与育种实践具有重要意义。选择高质量的SSR标记对DUS(Distinctness-特异性、Uniformity-一致性和Stability-稳定性)测试标准品种进行遗传多样性分析,不仅能够解析标准品种的遗传信息,也有助于对... 谷子遗传资源多样性的研究对谷子基础研究与育种实践具有重要意义。选择高质量的SSR标记对DUS(Distinctness-特异性、Uniformity-一致性和Stability-稳定性)测试标准品种进行遗传多样性分析,不仅能够解析标准品种的遗传信息,也有助于对新育成品系进行分子水平的遗传多样性分析。研究利用高质量的20个SSR标记对30份不同地理来源的谷子DUS测试标准品种进行遗传多样性分析,并构建其指纹图谱;同时,利用该指纹图谱的SSR标记对22份春谷区和30份夏谷区区试品种进行遗传多样性分析,旨在为谷子品种资源利用与遗传改良奠定理论基础。结果表明,20对SSR标记在DUS测试品种平均每对引物检出的等位变异数为9.15个,20个位点的平均多态性信息含量(PIC)为0.77。利用上述SSR标记对来自春谷区与夏谷区的共计52份谷子区试品种进行分子鉴定,春谷区的聚类分析结果显示,22份春谷区区试品种分为3个主要的类群;而夏谷区的聚类分析结果显示,30份谷子夏谷区区试品种分为4个类群,但难以区分春谷、夏谷区区试品种。研究结果厘清了谷子DUS测试标准品种和区试品系间的遗传相似性。 展开更多
关键词 谷子 指纹图谱 遗传多样性 duS测试 区试品种
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Countermeasures for Stressing Industry but Disregarding Agriculture in Resource-based Counties: A Case Study of Fugu County in Shaanxi Province 被引量:2
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作者 Shaowen ZHAN Jing ZHANG 《Asian Agricultural Research》 2013年第4期41-44,共4页
Industry re-feeding agriculture is an important strategy to boost agricultural modernization[1]. As to resource-based regions, the key thing is the way to implement the strategy of resource-based industry re-feeding a... Industry re-feeding agriculture is an important strategy to boost agricultural modernization[1]. As to resource-based regions, the key thing is the way to implement the strategy of resource-based industry re-feeding agriculture. In fact, as a typical resource-based county, Fugu County realizes its quick economic development mainly depending on the local resources and industrial development. And the agricultural development is relatively lagging in the county, more people are beginning to denote themselves to industrial development due to high return brought by resource exploitation, which results that the contradiction between industry and agriculture is gradually prominent in the county. Therefore, it is necessary to seek for a new way to develop industry and agriculture in resource-based counties. This article mainly introduces the mode and method of "industry re-feeding agriculture" in Fugu County, analyzes and summarizes the implementation effects and achievements of modes as well as discusses the problems produced in the course of policy implementation and tries to find countermeasures to coordinate the contradiction between industry and agriculture, then further discuss the development perspective of industry and agriculture in Fugu County. 展开更多
关键词 RESOURCE-BASED county CONTRADICTION between indust
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黄淮海区普通小麦DUS测试数量性状分级标准研究
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作者 张锦荣 杨江龙 +3 位作者 王晨宇 张昕 张丽 米宏彬 《种子科技》 2024年第17期7-12,共6页
为了更准确地进行黄淮海地区普通小麦品种DUS测试,需要对该生态区受环境条件影响较大的品种数量性状表达状态进行合理分级。以495份普通小麦品种为材料,于2021—2022年度进行田间种植试验,对9个数量性状进行表型数据调查,采用4种分级方... 为了更准确地进行黄淮海地区普通小麦品种DUS测试,需要对该生态区受环境条件影响较大的品种数量性状表达状态进行合理分级。以495份普通小麦品种为材料,于2021—2022年度进行田间种植试验,对9个数量性状进行表型数据调查,采用4种分级方法对各数量性状进行分级范围划分,通过对不同方法的比较,不育小穗数适合4种分级方法,千粒质量和抽穗期适合极差分级法,旗叶长度、旗叶宽度、植株高度、穗长度、穗粒数等应用最小显著差法、极差分级法比较合理。研究结果可以有效指导黄淮海地区小麦DUS测试数量性状的测试,规范品种描述,旨在为小麦资源的综合评价和利用提供参考。 展开更多
关键词 普通小麦 duS测试 数量性状分级
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黑木耳新品种延农科2号DUS自主测试
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作者 李健 胡志强 +2 位作者 杜忠伟 王旭 王鑫 《农业与技术》 2024年第10期1-7,共7页
2022年3月1日—9月20日和2022年5月4日—10月18日,在延边朝鲜族自治州农业科学院黑木耳基地,根据《植物新品种特异性、一致性和稳定性测试指南黑木耳》(NY/T 2588-2014)对黑木耳新品种“延农科2号”进行DUS自主测试,近似品种为“延特5号... 2022年3月1日—9月20日和2022年5月4日—10月18日,在延边朝鲜族自治州农业科学院黑木耳基地,根据《植物新品种特异性、一致性和稳定性测试指南黑木耳》(NY/T 2588-2014)对黑木耳新品种“延农科2号”进行DUS自主测试,近似品种为“延特5号”,测试结果“延农科2号”具有特异性、一致性和稳定性,符合审定新品种标准。 展开更多
关键词 黑木耳 新品种 duS
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Dual-objective pattern optimization method for land suitability zoning in mountain counties
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作者 WANG Lei WU Lian +1 位作者 ZHANG Wei JING Wen-li 《Journal of Mountain Science》 SCIE CSCD 2023年第1期209-226,共18页
As the basic administrative unit of China,counties have grown rapidly in recent years in the context of rapid urbanization,especially for counties located in mountainous areas.The drastic changes in land in mountainou... As the basic administrative unit of China,counties have grown rapidly in recent years in the context of rapid urbanization,especially for counties located in mountainous areas.The drastic changes in land in mountainous areas can easily cause irreversible damage to the sensitive ecological environment.Through the dual-objective suitability zoning of ecological and construction balance,regional sustainable land use patterns can be realized.In this study,Hantai District in Southern Shaanxi province,China,was chosen as the research area aiming at creating a balance between ecological supply and the development of construction in spatial planning.A dual-objective process evaluation system for ecological protection and construction development was proposed with 15 resistance factors selected from three attributes:natural ecology,economic society,and policy.The minimum resistance surface discrimination methods for ecological land and construction development land were proposed based on vertical space superposition and horizontal minimum cumulative resistance models.Finally,the land in Hantai District was divided into four development grades from the optimal angle of dual goals,i.e.,the construction core zone being 134.56 km^(2),the suitable construction zone 115.77 km2,the ecological buffer zone 153.74 km^(2),and the ecological control zone 151.93 km^(2),using the method combining resistance difference and threshold division.In addition,the development direction of each town under jurisdiction was identified.This study compensates for the deficiency of traditional methods that evaluate land only from a single vertical or horizontal process. 展开更多
关键词 dual-objective pattern Land suitability zoning Minimum cumulative resistance model Mountain county Hantai District
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New Urbanization Strategies of Fumin County,Kunming City during the Fourteenth Five-year Plan Period
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作者 ZHANG Yi ZOU Jianye +1 位作者 FAN Xi ZHOU Qiongli 《Journal of Landscape Research》 2023年第1期36-40,共5页
Fumin County is a satellite town closest to Kunming City,its economic development level has lagged behind that of the city and other districts and counties of the city,and the urbanization rate has been quite low.Thro... Fumin County is a satellite town closest to Kunming City,its economic development level has lagged behind that of the city and other districts and counties of the city,and the urbanization rate has been quite low.Through analyzing development conditions and problems of Fumin County,strategies and countermeasures were put forward for the new urbanization of the county during the Fourteenth Five-year Plan. 展开更多
关键词 Fumin county New urbanization Strategy Research
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An Investigation Into the Needs and Challenges of County-Level Family Education Guidance Services and Corresponding Improvement Measures
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作者 Deng Xiaobing Tian Liyan +1 位作者 Ji Ping Yang Wei 《Contemporary Social Sciences》 2023年第3期99-116,共18页
The delivery of targeted family education guidance services is essential for establishing a three-in-one education model that encompasses families,schools,and communities.It is also the key to creating a favorable edu... The delivery of targeted family education guidance services is essential for establishing a three-in-one education model that encompasses families,schools,and communities.It is also the key to creating a favorable educational environment that promotes the comprehensive and healthy development of individual students.To gain a comprehensive understanding of family education characteristics and trends in Chinese counties,accurately tap into the educational needs of parents,and effectively identify strengths and weaknesses in family education guidance services,this paper employed a quantitative research method based on a questionnaire survey and interview data from J district of C city after years of continuous monitoring of the quality of family education in the area,aiming to explore these issues and put forward several suggestions for improvement.The results indicate that the family learning environment and atmosphere in the district are generally favorable,while parental educational competence requires further improvement.Parents express a strong desire for interactive,systematic,and fragmented family education guidance from schools.Most parents acknowledge the significance of receiving guidance on family education,yet they are disinclined to actively engage in learning-related activities.While the operational mechanisms of county-level family education guidance services have been continuously improved,there is a need for greater overall coordination.Furthermore,the potential of school-led family education guidance services has yet to be fully tapped,and the scientific and professional standards of such guidance need to be further enhanced.Based on the aforementioned findings,we propose recommendations for improvement.Using J district’s effective improvement practices in management,curriculum,and teams as an example,we intend to explore practical ways to promote county-level family education guidance services and provide a valuable reference for the establishment of a comprehensive and effective system to improve such services. 展开更多
关键词 family education family education guidance services needs and problems improvement measures county
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基于DUS测试性状的冀北地区马铃薯品种遗传多样性分析
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作者 程静 田佳 +7 位作者 马恢 籍立杰 寇淑君 王莉红 左振兴 安倩倩 刘栋 王星宇 《种子》 北大核心 2024年第2期127-134,共8页
本研究通过马铃薯DUS测试性状,对适合在冀北地区种植的39个马铃薯品种展开遗传多样性分析以及性状的表型分析。结果表明,共检测到44个DUS测试性状的209个等位变异,平均每个性状检测到4.75个。多样性指数大于1的性状有34个,包括30个数量... 本研究通过马铃薯DUS测试性状,对适合在冀北地区种植的39个马铃薯品种展开遗传多样性分析以及性状的表型分析。结果表明,共检测到44个DUS测试性状的209个等位变异,平均每个性状检测到4.75个。多样性指数大于1的性状有34个,包括30个数量性状和4个假质量性状。多样性指数小于1的性状有10个,包括6个数量性状、2个假质量性状和2个质量性状。相关性分析表明,块茎表皮颜色,芽眼基部颜色与复叶主脉上表面花青甙显色强度高度相关。聚类分析将39个品种分成3组,每个组群具有各自独特的表型特征,各组特征性状与DUS测试指南指导分组性状一致。研究表明,DUS测试性状数量多,多样性也较高,可对马铃薯品种资源进行较为全面的客观评价。 展开更多
关键词 马铃薯 duS测试 种质资源评价
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基于DUS测试的江西省水稻新品种遗传多样性分析
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作者 高崇峰 刘小龙 +4 位作者 罗涛 毛豪仁 夏晶 余小芸 段红霞 《安徽农业科学》 CAS 2024年第18期32-36,42,共6页
江西省是我国的水稻育种和种植大省,随着水稻育种水平的快速提高,地方品种不断被新选育品种替代,造成大量优良基因丧失,遗传多样性显著降低,遗传基础日益狭窄。使用水稻DUS测试指南性状对江西省256份水稻新品种的遗传多样性进行分析,旨... 江西省是我国的水稻育种和种植大省,随着水稻育种水平的快速提高,地方品种不断被新选育品种替代,造成大量优良基因丧失,遗传多样性显著降低,遗传基础日益狭窄。使用水稻DUS测试指南性状对江西省256份水稻新品种的遗传多样性进行分析,旨在了解江西省水稻新品种遗传多样性情况,为江西省水稻种质鉴定、育种利用和新品种测试提供一些参考。10个数量性状变异系数在8.59%~21.83%;52个测试性状的香农-维纳遗传多样性指数在0.03~2.10,平均1.05。聚类分析显示,材料相似系数在0.77~0.95。江西省近年选育的品种多样性较窄,对糯稻、有色稻和香稻等特殊稻品种开发力度也不够,各育种单位应加大品种资源收集和利用力度。 展开更多
关键词 水稻 duS测试 遗传多样性 数量性状
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