检索结果-南通市图书馆

Sugar beet yield and industrial sugar contents improved by potassium fertilization under scarce and adequate moisture conditions

引用

Journal of Integrative Agriculture 2016年第11期15卷 2620-2626页

作者： Muhammad Umair Mubarak Muhammad Zahir Sagheer Ahmad Abdul Wakeel Institute of Soil and Environmental Sciences University of Agriculture Faisalabad Sugar crops program National Agricultural Research Center

Sugar beet（Beta vulgaris L.） is an industrial crop, grown worldwide for sugar production. In Pakistan, sugar is mostly extracted from sugarcane, soil and environmental conditions are equally favorable for sugar beet cultivation. Beet sugar contents are higher than sugarcane sugar contents, which can be further increased by potassium（K） fertilization. Total K concentration is higher in Pakistani soils developed from mica minerals, but it does not represent plant available K for sustainable plant growth. A pot experiment was conducted in the wire-house of Institute of Soil and Environmental Sciences at University of Agriculture Faisalabad, Pakistan. K treatments were the following： no K（K_0）, K application at 148 kg ha^（–1）（K_1） and 296 kg ha^（–1）（K_2）. Irrigation levels were used as water sufficient at 60% water holding capacity and water deficient at 40% water holding capacity. The growth, yield and beet quality data were analyzed statistically using LSD. The results revealed that increase in the level of K fertilization at water sufficient level significantly increased plant growth, beet yield and industrial beet sugar content. The response of K fertilization under water deficient condition was also similar, however overall sugar production was less than that in water sufficient conditions. It is concluded from this study that K application could be used not only to enhance plant growth and beet yield but also enhance beet sugar content both under water-deficient as well as water-sufficient conditions.

关键词： potassium irrigation levels beet yields sugar contents

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

High-throughput Phenotyping and Genomic Selection:The Frontiers of Crop Breeding Converge

引用

Journal of Integrative Plant Biology 2012年第5期54卷 312-320页

作者： Lloren Cabrera-Bosquet Jos Crossa Jarislav von Zitzewitz María Dolors Serret Jos Luis Araus French national Institute for Agricultural research (INRA UMR759)Ecophysiology Laboratory of Plants under Environmental StressMontpellier F-34060France International Maize and Wheat Improvement Center (CIMMYT) El BatnTexcoco CP 56130Mexico national research program on rainfed crops National Institute for Agricultural ResearchEst.Exp.La EstanzuelaColonia 70000Uruguay Unit of Plant Physiology Faculty of BiologyUniversity of BarcelonaAv.Diagonal643Barcelona 08028Spain

Genomic selection （GS） and high-throughput phenotyping have recently been captivating the interest of the crop breeding com- munity from both the public and private sectors world-wide. Both approaches promise to revolutionize the prediction of complex traits, including growth, yield and adaptation to stress. Whereas high-throughput phenotyping may help to improve understanding of crop physiology, most powerful techniques for high-throughput field phenotyping are empirical rather than analytical and compa- rable to genomic selection. Despite the fact that the two method- ological approaches represent the extremes of what is understood as the breeding process （phenotype versus genome）, they both consider the targeted traits （e.g. grain yield, growth, phenology, plant adaptation to stress） as a black box instead of dissectingthem as a set of secondary traits （i.e. physiological） putatively related to the target trait. Both GS and high-throughput phenotyping have in common their empirical approach enabling breeders to use genome profile or phenotype without understanding the underlying biology. This short review discusses the main aspects of both approaches and focuses on the case of genomic selection of maize flowering traits and near-infrared spectroscopy （NIRS） and plant spectral reflectance as high-throughput field phenotyping methods for complex traits such as crop growth and yield.

关键词： Genomic selection high-throughput phenotyping NIRS quantitative traits SNPs.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Relationship Among Yield Components and Selection Criteria for Yield Improvement in Early Rapeseed (Brassica napus L.)

引用

Agricultural Sciences in China 2011年第7期10卷 997-1003页

作者： LU Guang-yuan ZHANG Fang ZHENG Pu-ying CHENG Yong LIU Feng-lan FU Gui-ping ZHANG Xue-kun Key Laboratory for Oil crops Biological research Oil Crops Research Institute Chinese Academy of Agricultural Sciences Wuhan 430062 P.R.China The national Agro-Tech Extension and Service Center Beijing 100125 P.R.China

The objective of this study was to determine the relationship between seed yield and other important agronomic traits of early-maturing rapeseed as a rotation crop in a double-cropping rice area using Pearson＇s correlation coefficient as well as to estimate direct and indirect effects of specific yield component traits on seed yield via path analysis. Nineteen rapeseed genotypes were grown at ten environments in South China during 2008-2009 and 12 characters were evaluated. Analysis of variance showed that environment had a significant impact on all characters. For most characters the genotype by environment interaction was weak and not statistically significant. Simple correlation analysis indicated that the number of primary branches （PB）, number of pods on the main raceme （PR）, and number of seeds per pod made significant contributions to seed yield per plant （SYP）, while 1 000-seed weight was negatively correlated with SYP （r=-0.485, P0.05）. Furthermore, number of pods per plant （PP）, PB, and PR had the greatest direct effects on SYP. In addition, PP and PB were the best indicators to predict seed yield in stepwise regression analysis. Finally, yield component differences between early- and medium-maturity varieties were compared; this showed that to improve the seed yield of early varieties, more emphasis should be given to increase PP, PB, and PR, and reduce plant height and shortening of growth duration in breeding practice.

关键词： Brassica napus L. early maturity yield component path analysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Association Analysis for Quality Traits in a Diverse Panel of Chinese Sesame(Sesamum indicum L.)Germplasm

引用

Journal of Integrative Plant Biology 2013年第8期55卷 745-758页

作者： Wenliang Wei Yanxin Zhang Haixia Lü Donghua Li Linhai Wang Xiurong Zhang Oil crops research Institute of the Chinese Academy of Agricultural Sciences Key Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture

The main objective of this study was to evaluate the potential of a sesame （Sesamum indicum L.） panel for association analysis, and investigate the genetic basis of oil content （OC）, protein content, oleic acid concentration, and linoleic acid concentration using association mapping. A panel of 216 sesame accessions was phenotyped in a multi-environment trial and fingerprinted with 608 polymorphic loci produced by 79 primers, including simple sequence repeats （SSRs）, sequence-related amplified polymorphisms （SRAPs）, and amplified fragment length polymorphisms （AFLPs）. Population structure analysis revealed two subgroups in the population. The Q model performed better for its ability to re-identify associations for the four traits at highly significant P-values compared to the other three mixed models. And a total of 35 and 25 associations for the four traits in 2010 and 2011 were identified, respectively, with the Q model after Bonferroni correction. Among those associations, only one for OC was re-identified in two environments, and several markers associated simultaneously with multiple traits were discovered. These results suggest the power and stability of the Q model for association analysis of nutritional traits in this sesame panel for its slight population stratification and familial relationship, which could aid in dissecting complex traits, and could help to develop strategies for improving nutritional quality.

关键词： Association mapping nutritional trait population structure Sesamum indicum L.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Molecular evidence for blocking erucic acid synthesis in rapeseed(Brassica napus L.) by a two-base-pair deletion in FAE1(fatty acid elongase 1)

引用

Journal of Integrative Agriculture 2015年第7期14卷 1251-1260页

作者： WU Lei JIA Yan-li WU Gang LU Chang-ming Oil crops research Institute Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture

DNA sequences of fatty acid elongase 1 genes FAE1.1 （EA） and FAE1.2 （Ec） were isolated and characterized for 30 com- mercialized low erucic acid rapeseed （LEAR） cultivars in China. Four types of independent mutation leading to low erucic acid trait were found, i.e., a single-base transition （eAl）, a two-base deletion （ec2） and four-base deletion （eC4） as well as single-base transition with a four-base deletion （eA.）. Three genotypes, i.e., eA1eA1eC2eC2, eA1eA1eC4eC4 and ***4ec4 were responsible for LEA content in storage Iipids of different rapeseed cultivars. Most of the LEAR cultivars had a genotype of eA1eA1ec2ec2, which were descended from the first LEAR cultivar, Oro. Yeast expression analysis revealed that two-base-pair （AA） deletion （ec2） at the base sites of 1 422-1 423 in the C genome FAE1 gene resulted in the absence of the condensing enzyme and led to the failure to produce erucic acid. Coexpression of FAE1 and ketoacyI-CoA reductase （KCR） or enoyI-CoA reductase （ECR） was found in high erucic acid rapeseed （HEAR） but not in LEAR （eA1eA1ec2ec2oreA1eA1ec4ec4）. Moreover, KCR and ECR were still coordinately regulated in eA1eA1ec2ec2 or eA1eA1ec4ec4 genotypes, suggesting that the expression of two genes was tightly linked. In addition, specific detection methods were developed by high-resolution melting curve analysis in order to detect eA1 and ec4.

关键词： erucic acid fatty acid elongase 1 natural mutation Brassica napus L.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of barley straw biochar application on greenhouse gas emissions from upland soil for Chinese cabbage cultivation in short-term laboratory experiments

引用

Journal of Mountain Science 2016年第4期13卷 693-702页

作者： Se-Won KANG Dong-Cheol SEO Yong-Hwa CHEONG Ju-Wang PARK Jong-Hwan PARK Hang-Won KANG Ki-Do PARK Yong Sik OK Ju-Sik CHO Department of Medicinal & Industrial crops Korea National College of Agriculture and Fisheries Division of Applied Life Science (BK21 program) & Institute of Agriculture and Life Sciences Gyeongsang National University Department of Bio-environmental Sciences Sunchon National University national Institute of Crop Science Rural Development Association Korea Biochar research Center & Department of Biological Environment Kangwon National University

Chinese cabbage was cultivated in upland soil with the addition of biochar in order to investigate the potential for reduction of greenhouse gas emissions. Barley straw biochar(BSB) was introduced in a Wagner pot(1/5000a) in amounts of 0(BSB0, control), 100(BSB100), 300(BSB300), and 500(BSB500) kg 10a^(-1). After the addition of BSB into the upland soil, carbon dioxide(CO_2) emission increased while methane(CH_4) and nitrous oxide(N_2O) emissions decreased. The highest CO2 flux was measured for the BSB500 sample,(84.6 g m^(-2)) followed by BSB300, BSB100, and BSB0 in decreasing order. Relative to those of control, the total CH_4 flux and N_2O flux for the BSB500 treatment were lower by 31.6% and 26.1%, respectively. The global warming potential(GWP) of the treatment without biochar was 281.4 g CO_2 m-2 and those for treatments with biochar were in the range from 194.1 to 224.9 g CO_2 m^(-2). Therefore, introducing BSB into upland soil to cultivate Chinese cabbages can reduce the global warming potential.

关键词： Biochar Carbon dioxide Methane Nitrous oxide Global warming

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Genetic dissection of root morphological traits as related to potassium use efficiency in rapeseed under two contrasting potassium levels by hydroponics

引用

Science China(Life Sciences) 2019年第6期62卷 746-757页

作者： Xiaoling Dun Jiaqin Shi Huiping Liu Jie Wang Xinfa Wang Hanzhong Wang Oil crops research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Oil crops Ministry of Agriculture

To reveal the genetic basis of potassium use efficiency(KUE) in rapeseed, root morphology(RM), biomass and KUE-related traits were measured in a recombinant inbred line population with 175 F7 lines that were subjected to high-potassium(HK) and low-potassium(LK) treatments by hydroponics. A total of 109 significant QTLs were identified to be associated with the examined traits. Sixty-one of these QTLs were integrated into nine stable QTLs. The higher heritability for RM and biomass traits and lower heritability for KUE-related traits, as well as nine stable QTLs for RM traits and only two for KUE-related traits,suggested that regulating RM traits would be more effective than selecting KUE traits directly to improve KUE by markerassisted selection. Furthermore, the integration of stable QTLs identified in the HK, LK, high-nitrogen(HN) and low-nitrogen(LN) conditions gave 10 QTL clusters. Seven of these clusters were classified into major QTLs that explained 7.4%–23.7% of the total phenotypic variation. Five of the major QTL clusters were detected under all of the treated conditions, and four clusters were specifically detected under the LK and LN conditions. These common and specific QTL clusters may be useful for the simultaneous improvement of multiple traits by marker-assisted selection.

关键词： Brassica napus L. root traits potassium efficiency QTL mapping QTL cluster

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Laboratory testing and molecular analysis of the resistance of wild and cultivated soybeans to cotton bollworm, Helicoverpa armigera(Hübner)

引用

The Crop Journal 2015年第1期3卷 19-28页

作者： Xiaoyi Wang Haifeng Chen Aihua Sha Rong Zhou Zhihui Shang Xiaojuan Zhang Chanjuan Zhang Limiao Chen Qingnan Hao Zhonglu Yang Dezhen Qiu Shuilian Chen Xinan Zhou Department of Soybean Oil Crops Research Institute Chinese Academy of Agricultural Sciences

Identifying a superior soybean variety with high defoliator resistance is important to avoid yield loss. Cotton bollworm(Helicoverpa armigera Hübner) is one of the major defoliators of soybean(Glycine max [L.] Merr.) worldwide. In this study, we evaluated the effect of H. armigera larvae on ED059, a wild soybean(Glycine soja Sieb. et Zucc.), and three cultivated soybean varieties: Tianlong 2, PI 535807, and PI 533604, in choice and no-choice assays. The percentage of ED059 leaflets consumed by H. armigera was lower than that of the three cultivated soybeans. Larvae that fed on ED059 exhibited low weight gain and high mortality *** nutritional indices suggested that ED059 reduced the growth, consumption, and frass production of H. armigera larvae. Larvae that fed on ED059 showed lower efficiency of conversion of ingested and of digested food than those that fed on Tianlong 2 and PI ***, they showed statistically similar consumption index and approximate digestibility compared with those fed on the three cultivated soybeans. Quantitative real-time PCR analysis revealed that 24 h after insect attack, ED059 had higher transcript levels of Kunitz trypsin inhibitor 3, Cysteine proteinase inhibitor 2, and Nerolidol synthase 1 but a lower transcript level of Pathogenesis-related protein 1 than Tianlong 2. The gene expression results were consistent with the presence of higher levels of jasmonic acid(JA) and transcript levels of the JA biosynthesis enzyme allene oxide cyclase 3 in ED059 than in Tianlong 2. Our findings indicate that ED059 is a superior soybean line with strong insect resistance that may be mediated via the JA pathway.

关键词： Soybean Defoliation Defoliator resistance Real-time PCR

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Quantitative Trait Loci Mapping for Rice Yield-Related Traits Using Chromosomal Segment Substitution Lines

引用

Rice science 2019年第5期26卷 261-264页

作者： LI Zihe Aamir RIAZ ZHANG Yingxin Galal Bakr ANIS ZHU Aike CAO Liyong CHENG Shihua Key Laboratory for Zhejiang Super Rice research/national Center for Rice Improvement/China national Rice research Institute Hangzhou 310006China Rice research and Training Center/Agriculture research Center Field Crops Research InstituteSakhaKafrelsheikh 33717 Egypt

Rice(Oryza sativa L.)is an important cereal crop,consumed as a staple by more than 50%of the global population(Gathala et al,2011).In Asian countries,the rice production increased to 695.5 million tones in the last years,and this increasing was caused by the main source of income and employment in these *** high-yielding hybrid rice is a potentially promising solution for addressing food shortages caused by marked increases in the global *** progress in DNA marker technology and the construction of linkage maps has enabled the detection of quantitative trait loci(QTLs)that regulate different agronomic traits applicable to breeding(Parida et al,2006;Zhang et al,2017).

关键词： breeding cereal linkage

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Benefiting others and self: Production of vitamins in plants

引用

Journal of Integrative Plant Biology 2021年第1期63卷 210-227页

作者： Yufei Li Chenkun Yang Hasan Ahmad Mohamed Maher Chuanying Fang Jie Luo national Key Laboratory of Crop Genetic Improvement and national Center of Plant Gene research(Wuhan) Huazhong Agricultural UniversityWuhan 430070China College of Tropical crops Hainan UniversityHaikou 570228China

Vitamins maintain growth and development in humans, animals, and plants. Because plants serve as essential producers of vitamins, increasing the vitamin contents in plants has become a goal of crop breeding worldwide. Here, we begin with a summary of the functions of vitamins. We then review the achievements to date in elucidating the molecular mechanisms underlying how vitamins are synthesized, transported, and regulated in plants. We also stress the exploration of variation in vitamins by the use of forward genetic approaches, such as quantitative trait locus mapping and genome-wide association studies. Overall, we conclude that exploring the diversity of vitamins could provide new insights into plant metabolism and crop breeding.

关键词： crop breeding forward genetic plants vitamins

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

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

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

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：