Dynamics of the Cumulation of Macroelements – Phosphorus, Potassium, Calcium and Magnesium During Development to Maturity of Soybean Seed     

V. Slip&#;evi&#;    I. Vedrina-Dragojevi&#;  L. Balint  J. Momirovi&#;-&#;uljat 《Journal of Agronomy and Crop Science》1992,168(2):73-84

Dynamics of the cumulation of phosphorus, potassium, calcium and magnesium in developing seed of four soybean genotypes under the defined climatic conditions in the course of three years was observed. Samples were being taken at weekly intervals from the point at which the grain reached a size suitable to be analyzed up to the full maturity of the seed. By analyzing the results it was found out that the intense cumulation of the minerals tested took place during the stages III and IV of the seed development, that is, in the course of intense cumulation of dry matter and the most expressive metabolic activity in the seed. Investigation of the impact of climatic conditions provides evidence that cumulation of the tested macroelements has been favourably influenced by increased precipitation along with moderate air temperatures within the seed developing period. The highest content of the minerals found with the cultivar Maksimirka independently of the year investigated reveals that mineral cumulation in soybean seed is affected by the cultivar and genetic particularity.  相似文献   

大豆性状整齐度与产量的关系   总被引：2，自引：0，他引：2  

谢甫绨  李世兵等 《沈阳农业大学学报》1992,23(1):41-44

观察测定了同一品种在同一条件下大豆性状的整齐度，同一品种在不同条件下性状的整齐度，不同品种在同一条件下性状的整齐度，统计分析了性状整齐度与实收产量之间的关系，结果表明，要获得大豆高产稳产，应注意植株间荚数和粒数的整齐度。  相似文献   

一次防治大豆灰斑病籽粒灰斑   总被引：1，自引：1，他引：0  

刘学敏  李利军 《东北农业大学学报》1996,27(3):231-234

通过室内及田间大豆不同生育期接种试验证明，籽粒感染灰斑病的关键时期是Ｒ３－Ｒ５期．Ｒ２期以前侵染不造成籽粒斑驳，据此提出一次防治大豆籽粒灰斑病的关键时期为Ｒ２－Ｒ４期．  相似文献   

中草药多糖免疫调节剂研究进展   总被引：4，自引：0，他引：4  

高海  李秀岚 《动物医学进展》2003,24(5):55-57

中草药多糖是增强机体免疫的物质基础 ,对促进和恢复机体免疫机能的作用极为明显。它的重要性正引起广泛关注。文章主要从中草药多糖的研究状况、开发应用及存在问题等方面进行了探讨 ,对于进一步了解中草药多糖在生理和病理过程中的作用及其免疫调节机制有一定意义  相似文献   

Identification of blackeye cowpea mosaic virus from germplasm of yard-long bean and from soybean,and the relationships between blackeye cowpea mosaic virus and cowpea aphid-borne mosaic virus     

Jeanne Dijkstra  L. Bos  H. J. Bouwmeester  Tutung Hadiastono  H. Lohuis 《European journal of plant pathology / European Foundation for Plant Pathology》1987,93(3):115-133

Two potyvirus isolates, one from germplasm of yard-long bean (Vigna unguiculata ssp.sesquipedalis) introduced into the Netherlands, and another one from soybean plants (Glycine max) in Indonesia, were compared with two virus isolates of blackeye cowpea mosaic virus (BICMV) from the USA and a Moroccan isolate of cowpea aphid-borne mosaic virus (CAMV). It is proposed that all five isolates be now considered BICMV on the basis of host ranges, symptoms and serology. From our results, and a reassessment of the literature it is suggested to drop the name CAMV in favour of BICMV.Samenvatting Twee potyvirussen, de een in Nederland ingevoerd met genenmateriaal vanVigna unguiculata ssp.sesquipedalis en de ander uit planten van sojaboon (Glycine max) in Indonesië, werden vergeleken met twee isolaten van blackeye cowpea mosiac virus (BICMV) en een Marokkaans isolaat van cowpea aphid-borne mosaic virus (CAMV). Op grond van waardplantenreeksen, symptomen en serologie stellen de auteurs voor om alle vijf isolaten te beschouwen als BICMV. Gebaseerd op de verkregen resultaten en een kritische beschouwing van de literatuur wordt de aanbeveling gedaan om de naam CAMV te laten vallen ten gunste van BICMV.  相似文献   

Growth inhibition and acetolactate synthase activity of soybean seedlings and suspension-cultured cells treated with bensulfuron-methyl   总被引：1，自引：0，他引：1  

TOSAPON PORNPROM  KENJI USUI  KOZO ISHIZUKA 《Weed Biology and Management》2005,5(3):150-153

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Molecular detection of Fusarium solani f. sp. glycines in soybean roots and soil   总被引：5，自引：0，他引：5  

S. Li †  G. L. Hartman 《Plant pathology》2003,52(1):74-83

A polymerase chain reaction (PCR)-based method was developed to detect DNA of Fusarium solani f. sp. glycines , the cause of soybean sudden death syndrome. Two pairs of primers, Fsg1/Fsg2 designed from the mitochondrial small subunit ribosomal RNA gene, and FsgEF1/FsgEF2 designed from the translation elongation factor 1-α gene, produced PCR products of 438 and 237 bp, respectively. Primer specificity was tested with DNA from 82 F. solani f. sp. glycines , 55 F. solani non-SDS isolates, 43 isolates of 17 soybean fungal pathogens and the oomycete Phytophthora sojae , and soybean. The sensitivity of primer Fsg1/Fsg2 was 10 pg while that of FsgEF1/FsgEF2 was 1 ng when using F. solani f. sp. glycines total genomic DNA or down to 10³ macroconidia g⁻¹ soil. Nested PCR increased the sensitivity of the PCR assay 1000-fold to 10 fg using primers Fsg1/Fsg2, and 1 pg using primers FsgEF1/FsgEF2. F. solani f. sp. glycines DNA was detected in field-grown soybean roots and soil by PCR using either single pairs of primers or the combination of two pairs of primers. The occurrence of F. solani f. sp. glycines was determined using nested PCR for 47 soil samples collected from soybean fields in 20 counties of Illinois in 1999. F. solani f. sp. glycines was detected in soil samples from all five Illinois Agricultural Statistic Districts including 100, 89, 50, 92 and 50% of the samples from East, Central, North-east and West Districts, respectively.  相似文献   

红汁乳菇多糖提取最佳工艺研究   总被引：10，自引：0，他引：10  

李志洲  杨海涛  邓百万 《中国食用菌》2003,22(5):40-42

对红汁乳菇多糖提取、纯化工艺进行了优化研究，结果表明在料液比1：30，浸提温度95％浸提时间2h,pH8．0，可获得最佳提取效果。在醇析浓度为70％，V(氯仿)：V(正丁醇)=1：0．2，V(氯仿 正丁醇)：V(样品)=1：l时，纯化含量为58％。同时用超声波法对红汁乳菇多糖的提取作了研究，其得率为6.99％，效果较佳。  相似文献   

大豆疫病的种子处理技术研究   总被引：2，自引：0，他引：2  

严进  周肇蕙 《植物检疫》1997,11(1):1-4

本试验用不同浓度的瑞毒锰锌、杀毒矾和克露进行大豆种子处理试验，结果表明，５００ｐｐｍ瑞毒锰锌对大豆疫病具有很好的治疗作用，而用杀毒矾以种子重量０．４—０．５％的剂量闷种，能显著地抑制大豆疫霉菌的侵入  相似文献   

高效液相色谱法测定氟甲喹可溶性粉含量   总被引：2，自引：0，他引：2  

王祖兵  程烨  吴梅芳 《中国兽药杂志》2004,38(12):20-22

采用高效液相色谱法测定氟甲喹可溶性粉的含量,采用C 18 色谱柱(150 mm×4.6 mm,5μm),以乙腈-水-磷酸(35∶65∶0.5,V/V)为流动相,柱温25 ℃,流速1.0 mL/min,检测波长248 nm.方法的线性范围 100～400 μg/mL,线性方程A=2.455×104C 28 111,r=0.999 9,平均回收率100.3%,RSD= 0.74%.本法具有专属性,可将氟甲喹与已知的杂质进行有效分离.  相似文献