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Integrating MODFLOW and GIS technologies for assessing impacts of irrigation management and groundwater use in the Hetao Irrigation District,Yellow River basin

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Science china(Technological Sciences) 2009年第11期52卷 3257-3263页

作者： xu xu1,2, huang guanhua1,2 & qu zhongyi3 1 center for agriculture water research, china agricultural university, beijing 100083, china 2 Chinese-Israeli International center for research and Training in agriculture, china agricultural university, beijing 100083, china 3 water Conservancy and Civil Engineering College, Inner Mongolia agricultural university, Hohhot 010018, china 1. center for agriculture water research China Agricultural University Beijing 100083 China 2. Chinese-Israeli International center for research and Training in agriculture China Agricultural University Beijing 100083 China 3. water Conservancy and Civil Engineering College Inner Mongolia Agricultural University Hohhot 010018 China

Due to severe water scarcity, water resources used in agricultural sector have been reduced markedly in Hetao irrigation district. Application of water-saving practices (WSPs) is required for the sustainable agricultural development. The human activities including WSPs and increase of groundwater abstraction can lower down the groundwater table, which is helpful to the salinity control. Meanwhile, an excessively large groundwater table depth may result in negative impact on crop growth and fragile ecological environment. In this paper, the Jiefangzha irrigation system in Hetao irrigation district was selected as a typical area, a groundwater flow model based on ArcInfo Geographic Information System (GIS) was developed and implemented to quantify the effect of human activities on the groundwater system in this area. The preand post-processing of model data was performed efficiently by using the available GIS tools. The time-variant data in boundary conditions was further edited in Microsoft Excel with programs of Visual Basic for Application (VBA). The model was calibrated and validated with independent data sets. Application of the model indicated that it can well describe the effect of human activities on groundwater dynamics in Jiefangzha irrigation system.

关键词： groundwater flow modeling MODFLOW GIS water-saving practices irrigation district

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黄河流域河套灌区灌水管理和地下水利用的影响评估研究-基于GIS技术和MODFLOW的耦合模拟（英文）

黄河流域河套灌区灌水管理和地下水利用的影响评估研究-基于GIS技...

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2009水资源与可持续发展高层论坛

作者： xu xu~(1,2),huang guanhua~(1,2+),qu zhongyi~3 1 center for agriculture water research,china agricultural university,beijing,100083,P.R.china 2 Chinese-Israeli International center for research and Training in agriculture,china agricultural university,beijing,100083,P.R.china 3 water Conservancy and Civil Engineering College,Inner Mongolia agricultural university,Hohhot, 010018,P.R.china

＜正＞Due to severe water scarcity,water resources used in agricultural sector have been reduced markedly in Hetao Irrigation *** of water-saving practices（WSPs） is required for the sustainable agricultural *** human activities including WSPs and increase of groundwater abstraction can lower down the groundwater table,which

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Whole-genome resequencing of Hu sheep identifies candidate genes associated with agronomic traits

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Journal of Genetics and Genomics 2024年第8期51卷 866-876页

作者： Liming Zhao Lvfeng Yuan Fadi Li Xiaoxue Zhang Huibin Tian Zongwu Ma Deyin Zhang Yukun Zhang Yuan Zhao Kai huang Xiaolong Li Jiangbo Cheng Dan xu Xiaobin Yang Kunchao Han Xiuxiu Weng Weimin Wang State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems Key Laboratory of Grassland Livestock Industry InnovationMinistry of Agriculture and Rural AffairsEngineering Research Center of Grassland IndustryMinistry of EducationCollege of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhouGansu 730020China Lanzhou Veterinary research Institute Chinese Academy of Agricultural SciencesLanzhouGansu 730046China College of Animal Science and Technology Gansu Agricultural UniversityLanzhouGansu 730070China

The phenotypic diversity resulting from artificial or natural selection of sheep has made a significant contribution to human *** sheep are a local sheep breed unique to china with high reproductive rates and rapid *** selection signatures have been widely used to investigate the genetic mechanisms underlying phenotypic variation in ***,we conduct whole-genome sequencing of 207 Hu sheep and compare them with the wild ancestors of domestic sheep(Asiatic mouflon)to investigate the genetic characteristics and selection signatures of Hu *** on six signatures of selection approaches,we detect genomic regions containing genes related to reproduction(BMPR1B,BMP2,PGFS,CYP19,CAMK4,GGT5,and GNAQ),vision(ALDH1A2,SAG,and PDE6B),nervous system(NAV1),and immune response(GPR35,SH2B2,PIK3R3,and HRAS).Association analysis with a population of 1299 Hu sheep reveals that those missense mutations in the GPR35(GPR35 g.952651 A>G;GPR35 g.952496 C>T)and NAV1(NAV1 g.84216190 C>T;NAV1 g.84227412 G>A)genes are significantly associated(Presearch offers unique insights into the selection characteristics of Hu sheep and facilitates further genetic improvement and molecular investigations.

关键词： Hu sheep Whole-genome resequencing Selection signature GPR35 NAV1 Single nucleotide polymorphism

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Clathrin light chains negatively regulate plant immunity by hijacking the autophagy pathway

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Plant Communications 2024年第8期5卷 172-188页

作者： Hu-Jiao Lan Jie Ran Wen-xu Wang Lei Zhang Ni-Ni Wu Ya-Ting Zhao Min-Jun huang Min Ni Fen Liu Ninghui Cheng Paul A.Nakata Jianwei Pan Steven A.Whitham Barbara J.Baker Jian-Zhong Liu Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants Zhejiang Normal UniversityJinhua 321004China Institute of Plant Genetics and Developmental Biology College of Chemistry and Life SciencesZhejiang Normal UniversityJinhua 321004China College of Life Sciences Lanzhou UniversityLanzhou 730000China Department of Plant Pathology and Microbiology Iowa State UniversityAmesIA 50011USA Department of Plant and Microbial Biology University of CaliforniaBerkeleyBerkeleyCA 94720USA Plant Gene Expression center U.S.Department of Agriculture-Agricultural Research ServiceAlbanyCA 94706USA Lushan Botanical Garden Chinese Academy of SciencesJiujiang 332000China U.S.Department of agriculture-agricultural research Service Children’s Nutrition Research CenterDepartment of PediatricsBaylor College of MedicineHoustonTX 77030USA

The crosstalk between clathrin-mediated endocytosis(CME)and the autophagy pathway has been reported in mammals;however,the interconnection of CME with autophagy has not been established in ***,we report that the Arabidopsis CLATHRIN LIGHT CHAIN(CLC)subunit 2 and 3 double mutant,clc2-1 clc3-1,phenocopies Arabidopsis AUTOPHAGY-RELATED GENE(ATG)mutants in both autoimmunity and nutrient ***,the autophagy pathway is significantly compromised in the clc2-1 clc3-1 ***,multiple assays demonstrate that CLC2 directly interacts with ATG8h/ATG8i in a domain-specific *** expected,both GFP-ATG8h/GFP-ATG8i and CLC2-GFP are subjected to autophagic degradation,and degradation of GFP-ATG8h is significantly reduced in the clc2-1 clc3-1 ***,simultaneous knockout of ATG8h and ATG8i by CRISPR-Cas9 results in enhanced resistance against Golovinomyces cichoracearum,supporting the functional relevance of the CLC2-ATG8h/8i *** conclusion,our results reveal a link between the function of CLCs and the autophagy pathway in Arabidopsis.

关键词： autophagy clathrin light chain immunity clathrin-mediated endocytosis senescence cell death

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Divergence on Gene Expression Responding to Microbial Challenge and the Evolution of the Drosomycin Gene Family in Drosophila melanogaster

Divergence on Gene Expression Responding to Microbial Challe...

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中国蚕学会第六届青年学术研讨会

作者： DENG Xiao-Juan 1,2,YANG Wan-Ying 2,huang Ya-Dong3,CAO Yang2,WEN Shuo-Yang 4,xu Pei-Lin 1,XIA Qing-You 5 (1 The Key Laboratory of Gene Engineering of Ministry of Education,Sun Yat-sen university,Guangzhou 510275,china 2 Department of Sericulture Science,College of Animal Science,South china agricultural university,Guangzhou 510642,china 3 Biopharmaceutical research and Development center,Jinan university,Guangzhou 510632,china 4 Department of Entomology,College of Natural Resource and Environment,South china agricultural university,Guangzhou 510642,china 5 Key Sericultural Laboratory of agriculture Ministry,College of Sericulture and Biotechnology,Southwest university,Chongqing 400716,china)

Drosomycin（Drs） encodes an inducible 44-residue of antifungal peptide in Drosophila melanogaster. Additional six genes,Dro1,Dro2,Dor3,Dro4,Dro5 and Dro6,are clustered with Drs into a multi-gene family on the 3L chromosome arm. To understand how does each gene of the family respond to microbial infection,we investigated the expression pattern of the drosomycin gene family by microbe-free injury and the microbial challenge. Among these seven genes,Drs,Dro2,Dro3,Dro4 and Dro5,were constitutionally expressed. Dro2,Dro3 and Dro5 were up-regulated by the simple injury. Only the Drs was strongly up-regulated by infection of microbes. Nevertheless Dro1 and Dro6 were not transcribed at all. Furthermore,two transcription start sites of Drs and Dro2,each of Dro3,Dro4 and Dro5,were identified by rapid amplification of cDNA ends. The presence of the NF-κB binding sites in regulatory region of Drs,Dro2,Dro3 and Dro5 genes also indicated the importance of these sites for the inducibility of Drs,Dro2,Dro3 and Dro5 gene. Taking the nested phylogenic information of ORFs into account,we suggested that genes of the drosomycin family have evolved into quite divergent against various stimulations during three duplication events.

关键词： Drosomycins Antifungal peptide Transcription Regulatory motifs Drosophila melanogaster

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Experimental researches on Carcinogenesis or Tumorigenicity of MDCK Canine Kidney Cell(CKC) Lines and Analysis of Their Chromosome Karyotypes

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agricultural Sciences in china 2002年第7期1卷 816-827页

作者： ZHANG De-li, LI Liu-jin, XIA Geng-tian, HE xu-yu, GAO Bu-xian, BAI Xiao-hong, huang Gao-sheng, LIU Shang-gao, YAN Long-fei and FANG Fu-de( Department of Immunology, School of Basic Medical Sciences , Peking university Health Science center , beijing 100083 , P. R . china beijing Institute of Preventive Medicine , beijing 100071 , P. R . china Department of Toxicology at center for research & Development of Animal Healthcare Products , Fourth Military Medical university , Xian 710032 , P. R . china Department of Pathology at School of Pre-clinical Education , Section of Pathology at Xi-Jing Hospital, Institute for Cancer research at china Cancer research Foundation , Fourth Military Medical university, Xian 710032 , P. R . china Key Open Laboratory of Preventive Veterinary Medicine of State Ministry of agriculture, College of Animal Medical Sciences & State Key Laboratory of agricultural Biotechnology , College of Biological Sciences , china agricultural university , beijing 100094 , P.R.china State Key Laboratory of Medical Molecular Biology, School of Basic Medical Sciences at the Peking Union Medical Colloge /Institute of Basic Medical Sciences at the Chinese Academy of Medical Sciences , beijing 100005 , P. R . china) Department of Immunology School of Basic Medical Sciences Peking University Health Science Center Beijing 100083 P. R.China beijing Institute of Preventive Medicine Beijing 100071P.R.China Department of Pathology at School of Pre-clinical Education Department of Toxicology at center for research Development of Animal Healthcare Products Fourth Military Medical University Xian 710032 P. R . China beijing Institute of Preventive Medicine Beijing 100071P.R.China Department of Pathology at School of Pre-clinical Education Section of Pathology at Xi-Jing Hospital Institute for Cancer Research at China Cancer Research Foundation Fourth Military Medical University Xian 710032 P. R . China Key Open Laboratory of Preventive Veterinary Medicine of State Ministry of agriculture College of Animal Medical Sciences State Key Laboratory of Agricultural Biotechnology College of Biological Sciences China Agricultural University Beijing 100094 P State Key Laboratory of Medical Molecular Biology School of Basic Medical Sciences at the Peking Union Medical Colloge/Institute of Basic Medical Sciences at the Chinese Academy of Medical Sciences Beijing 100005 P.R. China

The chromosomal number variations & structural aberrations of the MDCK cell line, primary feline or canine kidney cell(FKC or CKC) and Hela cell line were investigated and their karyotypes of conventional chromosome bands were analyzed. The carcinogenesis or tumorigenicity testing of these cell lines in about 232 nude mice and for colony formation in soft agarose and for haemagglutination under different concentration of plant lectins of these cells were carried out. Under the prerequisite that the incidence of cancer or tumor in negative-control nude mice inoculated subcutaneously with primary feline or canine kidney cell cultures purified in vitro at passage 3 was 0 (0/22) and 0 (0/10), respectively. The incidence of the progressively-growing malignant tumor(MT) in positive-control nude mice inoculated subcutaneously with Hela cell cultures of KB, X, or NM20/X strain was 10/10, 25/25 and 5/51, respectively. The results showed that the incidence of tumor in nude mice with tetraploid YA strain of MDCK cell during 20 - 45 passages, with hy-podiploid JB strain of MDCK cell on passage 25, with di-and hypoploid JC strain of MDCK cell during 2-15 passages or with hypoploid M strain of MDCK cell during 9 - 27 passages was 28/58, 1/5, 4/18 and 0/31, respectively. The chromosomal analysis results showed that the ratio of difference in the rate of modal chromosome number between high(mcs+ n) and lowest (mcs) passages was not more than 5% - 15% and the structure aberrations was generally 0 - 3% . These results proved that the genetic characteristics of chromosomal number of cell lines determines their tumorigenicity, but it is species-specific. MDCK line has tumorigenicity no matter what its chromosome karyotype is, at least it has very low tumorigenicity even when its modal chromosome number is hypoploid. The repeatedly frozen, thawed and split controls of tumorigenicity-positive cell lines(X strain of Hela, M strain of BHK-21, JA strain of Vero, YA strain of MDCK) have much

关键词： Cell line MDCK Hela Feline or canine kidney cell Karyotypes Carcinogenesis or tuniori-genicity

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超高效液相色谱-三重四级杆质谱联用法同时测定荔枝中4种细胞分裂素

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果树学报 2024年第6期41卷 1228-1238页

作者：黄雨莲赵明磊马兴帅李建国徐婧农业农村部华南地区园艺作物生物学与种质创制重点实验室·华南农业大学园艺学院广州510642 广东荔枝工程中心广州510642

【目的】应用超高效液相色谱-三重四级杆质谱联用仪(UPLC-MS/MS),建立一种同时测定荔枝反式玉米素核苷(tZR)、异戊烯基腺嘌呤核苷(IPR)、二氢玉米素(DHZ)、异戊烯基腺嘌呤(IP)4种细胞分裂素含量的方法。【方法】0.25 g荔枝样品用乙腈-水... 详细信息

【目的】应用超高效液相色谱-三重四级杆质谱联用仪(UPLC-MS/MS),建立一种同时测定荔枝反式玉米素核苷(tZR)、异戊烯基腺嘌呤核苷(IPR)、二氢玉米素(DHZ)、异戊烯基腺嘌呤(IP)4种细胞分裂素含量的方法。【方法】0.25 g荔枝样品用乙腈-水(80∶20,体积比)溶液浸提8 h,经Bond Elut Plexa PCX固相萃取柱纯化,2.5%氨水甲醇洗脱后过0.22μm有机滤膜检测。选取XSelect HSS T3色谱柱,以甲醇和5 mmol·L^(-1)甲酸铵水溶液为流动相进行7 min梯度洗脱,采用电喷雾正离子(ESI+)模式电离,选择反应监测(MRM)模式对细胞分裂素进行定量。【结果】4种细胞分裂素的检出限和定量限分别低于18.12和60.39 pg·g^(-1),在0.05~50 ng·mL^(-1)质量浓度范围内呈良好的线性关系,线性相关系数(r2)大于0.999。在高、中、低浓度三种加标水平下,4种细胞分裂素的平均回收率为80.0%~108.2%,标准偏差为0.8%~15.5%。采用建立的方法可以同时检测出荔枝果皮、果肉、种子、幼果、叶片和果柄离区中4种细胞分裂素含量。【结论】该方法简便、快速、灵敏、准确,适用于荔枝不同组织中细胞分裂素含量的测定。

关键词：荔枝液质联用细胞分裂素定量测定

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小麦大、小粒材料的细胞学鉴定及其粒重相关基因表达研究

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山东农业科学 2024年第8期56卷 10-15,36页

作者：徐晓艺汪晓璐韩冉马朋涛徐文竞刘成烟台大学生命科学学院山东烟台264005 山东省农业科学院作物研究所/小麦玉米国家工程研究中心/小麦育种全国重点实验室/农业农村部黄淮北部小麦生物学与遗传育种重点实验室/山东省小麦技术创新中心山东济南250100

籽粒大小是影响小麦产量的重要农艺性状,开展控制籽粒大小相关基因的筛选鉴定和表达研究对小麦高产育种具有借鉴意义。本研究利用染色体计数和荧光原位杂交(FISH)的方法对15份大粒材料(千粒重高于50 g)和15份小粒材料(千粒重低于21 g)... 详细信息

籽粒大小是影响小麦产量的重要农艺性状,开展控制籽粒大小相关基因的筛选鉴定和表达研究对小麦高产育种具有借鉴意义。本研究利用染色体计数和荧光原位杂交(FISH)的方法对15份大粒材料(千粒重高于50 g)和15份小粒材料(千粒重低于21 g)进行鉴定,结果显示,京5044、京5085、藏1783、黑72-0484、LJ15鉴010共5份大粒材料的染色体条数为28,为四倍体小麦;其余材料染色体条数均为42,为六倍体小麦。选取六倍体的大粒和小粒材料各3份作为试验材料,用水稻和拟南芥的64个粒重相关基因在小麦基因组中筛选同源基因,对其进行qRT-PCR分析,选出6个在大、小粒材料中表达量存在显著差异的基因进行对比分析。结果表明,基因RiGSK2、RiGW8和RiGGC2在大粒材料HR2015-1-1-2-9中表达量较高,RiGS3和RiD11在小粒材料红秃头3中表达量较高,ArTTG2在3份小粒材料中表达量均较高,推测这6个基因可能是控制小麦粒重的关键基因,在后续研究中将进一步验证它们对小麦产量的贡献。

关键词：小麦籽粒大小荧光原位杂交(FISH) 粒重相关基因表达分析

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Genome assembly of autotetraploid Actinidia arguta highlights adaptive evolution and enables dissection of important economic traits

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Plant Communications 2024年第6期5卷 173-192页

作者： xue-Mei Lu Xiao-Fen Yu Guo-Qiang Li Ming-Hao qu Huan Wang Chuang Liu Yu-Ping Man Xiao-Han Jiang Mu-Zi Li Jian Wang Qi-Qi Chen Rui Lei Cheng-Cheng Zhao Yun-Qiu Zhou Zheng-Wang Jiang Zuo-Zhou Li Shang Zheng Chang Dong Bai-Lin Wang Yan-Xiang Sun Hui-Qin Zhang Jie-Wei Li quan-Hui Mo Ying Zhang Xin Lou Hai-xu Peng Ya-Ting Yi He-Xin Wang Xiu-Jun Zhang Yi-Bo Wang Dan Wang Li Li Qiong Zhang Wen-Xia Wang Yongbo Liu Lei Gao Jin-Hu Wu Yan-Chang Wang CAS Key Laboratory of Plant Germplasm Enhancement and Specialty agriculture Wuhan Botanical GardenChinese Academy of SciencesWuhanHubeiChina Key Laboratory of Western china’s Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesLanzhou UniversityLanzhouGansuChina College of Life Sciences University of Chinese Academy of SciencesBeijingChina Wuhan Frasergen Bioinformatics Co. LtdWuhanHubeiChina Institute of Soil and Fertilizer Anhui Academy of Agricultural SciencesHefeiChina College of agricultural Sciences Xichang UniversityXichangSichuanChina Department of Horticulture Heilongjiang Academy of Agricultural SciencesHarbinHeilongjiangChina College of Life Sciences Langfang Normal UniversityLangfangHebeiChina Institute of Horticulture Zhejiang Academy of Agricultural SciencesHangzhouZhejiangChina Guangxi Institute of Botany Chinese Academy of SciencesGuilinGuangxiChina Xi’an Botanical Garden of Shaanxi Province Institute of Botany of Shaanxi ProvinceXi’anShaanxiChina Institute of Modern agricultural research Dalian UniversityDalianLiaoningChina Bioinformatics center College of Plant Science and TechnologyBeijing University of AgricultureBeijingChina College of agriculture Eastern Liaoning UniversityDandongLiaoningChina Dalian Institute of Chemical Physics Chinese Academy of SciencesDalianLiaoningChina State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijingChina Hubei Hongshan Laboratory WuhanHubeiChina The New Zealand Institute for Plant and Food research Limited AucklandNew Zealand

Actinidia arguta,the most widely distributed Actinidia species and the second cultivated species in the genus,can be distinguished from the currently cultivated Actinidia chinensis on the basis of its small and smooth fruit,rapid softening,and excellent cold *** evolution of tetraploid Actinidia species and the genetic basis of their important agronomic traits are still ***,we generated a chromosome-scale genome assembly of an autotetraploid male *** *** genome assembly was 2.77 Gb in length with a contig N50 of 9.97 Mb and was anchored onto 116 *** and clustering of 101 geographically representative accessions showed that they could be divided into two geographic groups,Southern and Northern,which first diverged 12.9 million years *** underwent two prominent expansions and one demographic bottleneck from the midPleistocene climate transition to the late *** genomics studies using paleoclimate data enabled us to discern the evolution of the species’adaptation to different historical *** genes(AaCEL1,AaPME1,and AaDOF1)related to flesh softening were identified by multi-omics analysis,and their ability to accelerate flesh softening was verified through transient expression assays.A set of genes that characteristically regulate sexual dimorphism located on the sex chromosome(Chr3)or autosomal chromosomes showed biased expression during stamen or carpel *** chromosome-level assembly of the autotetraploid *** genome and the genes related to important agronomic traits will facilitate future functional genomics research and improvement of ***.

关键词： kiwiberry dioecism adaptive evolution paleoclimate GEA rapid softening

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长江流域迟播甘蓝型油菜播种期和播种量优化配置研究

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作物学报 2024年第8期50卷 2091-2105页

作者：娄洪祥黄肖玉江萌宁宁卞孟磊张磊罗东旭秦梦倩蒯婕汪波王晶赵杰徐正华周广生华中农业大学植物科学技术学院/湖北洪山实验室/农业农村部长江中游作物生理生态与耕作重点实验室湖北武汉430070 湖北省现代农业展示中心湖北武汉430070

为解决长江流域稻油茬口矛盾,提高冬闲田利用率,亟须迟播油菜(10月25日之后播种)配套技术研究。本研究以早熟品种‘华油杂137’为材料,在湖北武汉进行2年播种期(10月25日至11月15日间,各播种期间隔3 d,用S1~S8表示)和播种量(2.5、5.0、... 详细信息

为解决长江流域稻油茬口矛盾,提高冬闲田利用率,亟须迟播油菜(10月25日之后播种)配套技术研究。本研究以早熟品种‘华油杂137’为材料,在湖北武汉进行2年播种期(10月25日至11月15日间,各播种期间隔3 d,用S1~S8表示)和播种量(2.5、5.0、7.5、10.0和12.5 kg hm^(-2),用R1~R5表示)单因素试验,考察生育期、成苗动态、农艺性状、产量和倒伏指标,统计有效积温,通过线性回归和平滑曲线拟合分析,优化播种期和播种量的配置参数,为迟播油菜生产提供技术支撑。结果表明,(1)播种期推迟,迟播油菜的生育期缩短、根颈粗降低、分枝数减少、产量降低且茎秆倒伏指数增加;4个生育期中,苗期和花期有效积温与产量呈极显著正相关。(2)播种量增加,各生育期成苗数和收获密度提高,但生育期缩短、有效积温减少,角果层厚度降低、倒伏指数先降后增、产量呈先增后降趋势。(3)2年不同播种期产量数据回归分析表明,播种期推迟至S3~S4时,越冬前有效积温保持在317.1℃以上,苗期有效积温达401.1℃,终花35 d收获产量可达2700.0 kg hm^(-2),倒伏指数为1.5左右;2年不同播种量产量数据平滑曲线拟合分析表明,不同播种量下收获密度与产量呈抛物线关系,收获密度为64.2×10^(4)株hm^(-2)时终花35 d收获产量达峰值,为2948.5 kg hm^(-2),而倒伏指数为1.6。综上,配置7.5~10.0 kg hm^(-2)的播种量确保收获密度达64.2×10^(4)株hm^(-2),抢时播种确保冬前有效积温达317.1℃,可显著提高迟播油菜产量与抗倒性。

关键词：迟播油菜播种期播种量产量抗倒性有效积温

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