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sunflower response to potassium fertilization and nutrient requirement estimation

Journal of Integrative Agriculture 2018年第12期17卷 2802-2812页

作者： LI Shu-tian DUAN Yu GUO Tian-wen ZHANG Ping-liang HE Ping Kaushik Majumdar Institute of Agricultural Resources and Regional Planning Chinese Academy of Agricultural SciencesBeijing 100081P.R.China International Plant Nutrition Institute Beijing Office Beijing 100081P.R.China Institute of Resources Environment and Detection Technology Inner Mongolia Academy of Agricultural and Animal Husbandry SciencesHohhot 010031P.R.China Dryland Agriculture Institute Gansu Academy of Agricultural SciencesLanzhou 730070P.R.China International Plant Nutrition Institute (IPNI) Gurgaon 122001India

Field experiments were conducted in oil and edible sunflower to study the effects of potassium(K) fertilization on achene yield and quality, and to estimate the nutrient internal efficiency(IE) and nutrient requirement in sunflower production. All trials in edible sunflower and 75% trials in oil sunflower showed positive yield responses to K fertilization. Compared with control without K fertilization, the application of K increased achene yield by an average of 406 kg ha–1for oil sunflower and 294 kg ha–1for edible sunflower. K application also increased 1 000-achene weight and kernel rate of both oil and edible sunflower. K fertilization improved the contents of oil, oleic acid, linoleic acid and linolenic acid in achenes of oil sunflower, and increased contents of oil, total unsaturated fatty acid and protein in achenes of edible sunflower. The average agronomic efficiency of K fertilizer was 4.0 for oil sunflower and 3.0 kg achene kg–1K2O for edible sunflower. The average IE of N, P and K under balanced NPK fertilization was 22.9, 82.8, and 9.9 kg kg–1for oil sunflower, and 27.3, 138.9, and 14.3 kg kg–1for edible sunflower. These values were equivalent to 45.5, 14.1, and 108.1 kg, and 39.0, 8.0, and 71.7 kg of N, P and K, respectively, in above-ground dry matter required for production per ton of achenes. The average harvest index of N, P and K was 0.47, 0.56 and 0.05 kg kg–1in oil sunflower, and 0.58, 0.58 and 0.14 kg kg–1in edible sunflower.

关键词： sunflower potassium yield response K use efficiency

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Xanthium Suppression Under Maize||sunflower Intercropping System

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Journal of Integrative Agriculture 2012年第6期11卷 1026-1037页

作者： CHEN Yuan-quan SUI Peng LUAN Chen SHI Xue-peng College of Agronomy and Biotechnology China Agricultural UniversityBeijing 100193P.R.China

Weed control is one of the major constraint factors in crop production around the world. Field experiments were conducted during 2008-2009 under intercropping systems involving alfalfa （Medicago sativa L.）, sweet potato （lpomoea batatas [L.] Lain.）, peanut （Arachis hypogaea L.）, and sunflower （Helianthus annuus L.） in maize （Zea mays L.） without any weeds control methods taken. The results demonstrate that maizellsunflower is most effective on weed suppression and that it also has a more competitively inhibitory effect on Xanthium compared with the other patterns by evaluating the Xanthium density and dry weight under different intercropping systems with maize. Maizellpeanut, maizellalfalfa and maizel]sweet potato intercrops have no apparent inhibitory effect on weeds. To further investigate the effect of maize]lsunflower on weed control, indoor pot experiments were conducted by determining the effect of extractions on germination rate （GR）, root vigor, MDA （malondialdehyde）, SOD （superoxide dismutase） and POD （peroxidase） content of Xanthium. The results better prove that maizellsunflower extractions have more significant inhibitory effect on GR and young root vigor of Xanthium than maize monocrop extractions.

关键词： maize sunflower Xanthium intercropping weed suppression

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Preparation and Gas Sensing Performance of Hierarchical Porous ZnO-based Materials with sunflower Rods as a Biological Template

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Chemical Research in Chinese Universities 2019年第5期35卷 755-761页

作者： WANG Bowei ZENG Qingrui CHEN Shu YUE Tongtong HAN Bing FENG Wei YANG Defeng Second Hospital of Jilin University Changchun 130021P.R.China Key Laboratory of Groundwater Resource and Environment Ministry of EducationCollege of Environment and ResourcesJilin UniversityChangchun 130021P.R.China

A graded porous structure SnO2/ZnO composite was prepared with sunflower rods as a biological template. The prepared samples were subjected to phase analysis by scanning electron microscopy(SEM), transmission electron microscopy(TEM), X-ray diffractiometry(XRD) and X-ray photoelectron spectroscopy(XPS).ZnO sample was a pure phase of hexagonal wurtzite, and the template had been completely removed. The surface of the sample presented a honeycomb-like structure of a sunflower rod template, which was formed by interconnecting the porous channels, and had a smaller average size and exhibited n-n heterojunction at tlie n-type ZnO interface. Compared with that of pure ZnO, the response of the hierarchical porous structure SnO2/ZnO composite to 100 mg/L w-butanol reached a maximiuTi of 40.61 at 240℃, about 2.7 times higher than that of pure ZnO. Its response time and recovery time are 6 and 3 s, respectively, which are also better than those of pure ZnO. SnO2/ZnO composite exhibits good gas selectivity, which is related to the improvement of the structure and the forming of n-n heterojunctions of the material.

关键词： sunflower stem SnO2/ZnO Graded porous structure Gas sensitivity n-Butanol

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Genome-Wide Identification and Expression Analysis of the GSK3 Gene Family in sunflower under Various Abiotic Stresses

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Phyton-International Journal of Experimental Botany 2024年第8期93卷 1839-1850页

作者： Xianwen Ji Ziying Jiang Jichao Wang Lili Dong Xinyi Deng Department of Ornamental Horticulture Anhui Agricultural UniversityHefei230061China

Genes in the glycogen synthase kinase 3(GSK3)family are essential in regulating plant response to stressful *** study employed bioinformatics to uncover the GSK3 gene family from the sunflower genome *** expressions of GSK3 genes in different tissues and stress treatments,such as salt,drought,and cold,were assessed using transcriptome sequencing and quantitative real-time PCR(qRT-PCR).The study results revealed that the 12 GSK3 genes of sunflower,belonging to four classes(Classes I–IV),contained the GSK3 kinase domain and 11–13 *** majority of GSK3 genes were highly expressed in the leaf axil and flower,while their expression levels were relatively lower in the *** a result of salt stress,six of the GSK3 genes(HaSK11,HaSK22,HaSK23,HaSK32,HaSK33,and HaSK41)displayed a notable increase in expression,while HaSK14 and HaSK21 experienced a significant *** regard to drought stress,five of the GSK3 genes(HaSK11,HaSK13,HaSK21,HaSK22,and HaSK33)experienced a remarkable rise in *** exposed to cold stress,seven of the GSK3 genes(HaSK11,HaSK12,HaSK13,HaSK32,HaSK33,HaSK41,and HaSK42)showed a substantial increase,whereas HaSK21 and HaSK23 had a sharp *** research is of great importance in understanding the abiotic resistance mechanism of sunflowers and developing new varieties with improved stress resistance.

关键词： sunflower abiotic stress GSK expression analysis

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Response of seed yield and fatty acid compositions for some sunflower genotypes to plant spacing and nitrogen fertilization

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Information Processing in Agriculture 2017年第3期4卷 241-252页

作者： Mohamed Ali Abd EL-Satar Asmaa Abd-EL-Halime Ahmed Tamer Hassan Ali Hassan Oil Crops Research Department Field Crops Research InstituteAgricultural Research Center9 El-Gamaa St.GizaEgypt

A field experiment was conducted at the experiment Farm of Kafr-El-Hamam Research Station,Zagazig,Sharkia Governorate,Agricultural Research Center,Egypt during the two successive summer seasons of 2015 and 2016 to achieve the highest yield and good oil quality of three tested sunflower *** both seasons,the experiment was conducted using the split split plot design in randomized complete block design with three replicates arrangement keeping plant spaces(15,20 and 25 cm apart between hills)in main plots,nitrogen fertilization levels(15,30 and 45 N fad.^-1)in sub plots and sunflower genotypes(Giza 102,Sakha 53 and promising line of L120)in sub sub *** and quality traits were significantly influenced by plant spaces,nitrogen fertilization levels and genotypes as well as interactions in both seasons and their combined *** wider plant spacing of 25 cm seems to be a good compromise between the highest seed yield fad.^-1 and good acid composition of *** increasing of nitrogen fertilization level had a positive reflected on yield and desirable acid composition of *** 53 was ranked in the first order in stem diameter,head diameter,100-seed weight,seed weight plant^-1,flowered late and hence seed yield fad.^-1 as well as seed oil content whereas,Giza 102 characterized with its contained the highest proportion of oleic and linoleic unsaturated fatty *** highest values of head diameter,100-seed weight,seed weight plant^-1 and hence seed yield fad.^-1 as well as the highest proportion of oleic and linoleic unsaturated fatty acids composition were obtained by grown sunflower *** 53 at wider spacing of 25 cm with application of nitrogen fertilization levels of 45 N fad.^-*** and path analyses revealed that 100-seed weight and head diameter had the highest direct and indirect influence on seed weight plant1,at the same time also,oleic acid content and linoleic acid content had the highest direct and indirect effect inf

关键词： sunflower Plant spacing Nitrogen fertilization Genotypes Seed yield Fatty acids

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Comparative Efficacy of Weed Control Practices for Parthenium Weed and sunflower Crop under Varying Tillage Systems

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Phyton-International Journal of Experimental Botany 2020年第3期89卷 727-742页

作者： Noor Ahmad Rana Nadeem Abbas Asif Tanveer Zulfiqar Ahmad Saqib Deaprtment of Agronomy University of Agriculture FaisalabadFaisalabad7800Pakistan Institute of Soil and Environmental Science University of Agriculture FaisalabadFaisalabad7800Pakistan

Parthenium poses serious threat to modern crop production system and necessitate evaluating control practices for its effective *** of different weed control practices for controlling parthenium was explored in conventional and deep tillage systems in the field *** hoeing(20 and 35 days after emergence),S-Metolachlor(pre-emergence herbicide),sorghum straw mulch@5 tons ha-1 and combination of hand hoeing and sorghum straw mulch(hand hoeing at 20 and straw mulch at 35 days after emergence)were used as weed control *** check where no weed control measure was applied was also included in this experiment for *** concluded that the all weed management treatments significantly reduced parthenium density,its fresh and dry biomass during both the years of study as compared to weedy *** sunflower achene yield was recorded in hand hoeing(20 and 35 days after emergence)in combination with deep ***,mold bold plough used for the purpose of deep tillage should be encouraged for better control of parthenium and higher achene yield of sunflower crop(3293.3 kg ha^(-1) in 2017 and 3221.3 kg ha^(-1) in 2018).Moreover,is also inferred that total dose of herbicide might be reduced by using hoeing and mulching in an integrated way.

关键词： Parthenium mulch hoeing tillage s-metolachlor sunflower

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Effect of full-fat sunflower or flaxseed seeds dietary inclusion on performance,egg yolk fatty acid profile and egg quality in laying hens

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Animal Nutrition 2020年第2期6卷 179-184页

作者： Yandy J.Aguillón-Páez Laura A.Romero Gonzalo J.Diaz Facultad de Ciencias Agropecuarias Universidad de CundinamarcaFusagasugá252211Colombia Facultad de Medicina Veterinaria y de Zootecnia Universidad Nacional de ColombiaBogotá111321Colombia

A study was conducted to evaluate the effect of the dietary inclusion of full-fat flaxseed of full-fat sunflower seeds on performance parameters,egg quality parameters and egg yolk fatty acid profile in laying hens.A total of 150 Babcock Brown hens at 27 weeks of age were distributed in 3 experimental treatments,as follows:T1,control;T2,diet containing 13.5% full-fat whole flaxseed seeds;and T3,diet containing 13.5% full-fat ground sunflower *** and water were provided ad libitum and the experiment lasted for 8 *** significant differences were found on egg quality parameters,but total egg production and rate of lay were significantly(P sunflower seeds compared with the control,and significant differences(P sunflower seeds increases the n-6 PUFA content but affects total egg production and rate of *** studies are needed to determine the level of inclusion of full-fat sunflower seeds that does not affect performance.

关键词： Flaxseed sunflower Polyunsaturated fatty acid Laying hens Egg quality Performance

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Hopf bifurcation of sunflower equation parametrized by delay

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Chinese Science Bulletin 1995年第12期40卷 981-983页

作者：魏俊杰黄启昌 Department of Mathematics Northeast Normal University Changchun 130024 China

If we choose r as a parameter, the dependence of F on r is complicated because renters the definition of z_t. Thus, we choose a as a parameter. It is well known that delayis the important factor to cause the differences between differential-difference and ordinarydifferential equations. So we choose the delay as a parameter for studying the bifurcationof delay differential equations. In this note, we investigate the Hopf bifurcation for

关键词： sunflower equation delay Hopf bifurcation.

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Rapid identification and preliminary evaluation of quality characters of oilseed sunflower by near infrared spectroscopy

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Oil Crop Science 2022年第3期7卷 142-148页

作者： Ling Wang Lei Wang Meilian Tan Haifeng Yu Jiaomei Wang Yuxiao Li Wei Wang Xingchu Yan Lijun Wang Oil Crops Research Institute of Chinese Academy of Agricultural Sciences Key Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agriculture and Rural AffairsWuhan430062China Inner Mongolian Academy of Agricultural and Animal Husbandry Sciences Huhhot010031China

To clarify the quality characters,understand the genetic diversity and screen elite lines among different oilseed sunflowers,the contents of crude fat,oleic acid,linoleic acid,palmitic acid and stearic acid of 525 oil sunflowers(including 375 germplasm accessions and 150 inbred lines)were detected by near-infrared spectroscopy(NIRS);the genetic variation and correlation analysis of quality traits were also *** results showed that oleic acid and linoleic acid had rich diversities with large variation ranges for each material *** to the relation between crude fat content and palmitic acid content,significantly negative relation with high estimated value existed between oleic acid and linoleic acid content,while stearic acid content positively associated with oleic acid and palmitic acid *** component analysis indicated that 5 quality traits were integrated into 2principal component factors(linoleic acid negative factor and palmitic acid factor)with the contribution rate of 88.191%,which could be used for evaluating sunflower quality.525 oilseed sunflowers were clustered into 3groups with obvious differences of quality characters,materials in Group I had high contents of oleic acid and low crude fat,but the opposite was found in GroupⅢ.59 superior quality accessions were obtained using large-scale and rapid near-infrared spectroscopy,and these excellent materials were verified by the traditional national chemical standard *** research provided materials and significant reference for sunflower genetic research and quality breeding.

关键词： sunflower Germplasm resources Husked seed Oil content Fatty acid composition Near infrared spectroscopy

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PREDICTING HETEROSIS IN GRAIN YIELD FROM GENETIC DIVERGENCE ANALYSIS IN sunflower

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生物数学学报 1995年第4期10卷 19-27页

作者： QiaoChungui SunYushu LiDianshen SunChangzhan LiChunzi LiShuqiang Jilin Agricultural University Changchun 130118 Jilin Provincial Seed Company Changchu

Geneticdivergenceanalysiswasconductedbasedonperformanceof12quantitativetraitsin85sunflowerinbredlines,tostudyi***enheterosisofseedoilcontentandgeneticdistance,andquadraticregressionequationtherelationshipbetweengrainy... 详细信息

关键词： sunflower Geneticdivergence Clusteranalysis Heterosis

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