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通过对9个外引纤维用亚麻品种(系)在云南五点两年的区域试验,从其原茎产量、主要农艺性状、生育期等方面进行了综合评价。地安那、华星002、依莱克翠和华星001原茎产量较对照增产,且综合性状较好,适宜在云南大面积种植;派克丝、依罗娜、和华星004可在特定的区域进行推广。本研究同时对所参试的品种的丰产性及其稳定性进行了分析。 相似文献
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Straw and grain yield and water content in both grain and straw were measured during 3 years in 17 varieties of winter wheat following treatments with different fungicides. The water content of the straw varied significantly dependent on year, variety and fungicide treatment. In 1998, the water content in straw was significantly higher after the use of strobilurins compared with untreated and EBI fungicides (ergosterol biosyntesis inhibitors). On average water content in 10 varieties increased from 15% in untreated to 31% after applying two full dosages of azoxystrobin. In 1999 and 2000, lower dosages of azoxystrobin were used and water content increased only by 2–4 percentage units. The results indicate that in some years and with high doses precaution has to be taken following the use of strobilurins regarding handling and removing of the straw, which likely will include postponement of baling. Water content in grain was also increased significantly from fungicide treatments, but the increase was minor and at the maximum increase found to be 1.1% percentage unit. The effect of fungicide input on water content in grain was reduced much faster during the ripening period than for water content in straw. Fungicide treatments and varieties significantly influenced straw yields. The yield increases in straw varied between 0 and 1.0 tonnes/ha depending on year and variety, and was on average 0.42 tonnes/ha for two fungicide treatments. Two fungicide applications carried out at GS 31 and 45–55 gave only slightly higher increases compared with one application around ear emergence. Varieties showed variable increases following the use of fungicides. The variation was not influenced by the straw length (crop height). The increases in straw yield from fungicide treatments were relatively low compared to the increases in grain yield and no clear correlation was found between grain yield increases and straw yield increases. 相似文献
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《Industrial Crops and Products》2001,13(3):239-248
Information is needed to optimize enzymatic-retting of flax (Linum usitatissimum L.) based on a pectinase-rich mixture and chelators. Seed flax straw from North Dakota in 1998, ‘Natasja’ fiber flax straw from South Carolina in 1993, ‘Ariane’ fiber flax straw field-aged and dried from South Carolina in 1999, ‘Ariane’ fiber flax straw shed-dried from South Carolina in 1999, and Canadian seed flax straw in 1997 comprised diverse samples that were subjected to various tests to improve absorption of enzyme formulation by stems or to evaluate clean fiber yield. Mechanical disruption by crimping stems through fluted rollers at about 80 Newtons gave optimum fiber yield in conjunction with enzymatic-retting and was, therefore, used in further tests to evaluate enzyme absorption. Enzyme absorption was increased significantly for uncrimped flax stems with increased pressure of about 310 kPa or with a vacuum around 88 kPa. Increased pressure was effective more than the vacuum treatment. Samples with minimal post harvest handling were affected more by pressure alterations than samples that had considerable disruptions, such as seed flax straw or field-aged straw. Crimped stems showed little increase in enzyme absorption with alterations in applied pressure. Mechanical treatment of stems by crimping gave the largest increase in enzyme absorption and increased significantly the fiber yields. Based on a variety of sample types, the results suggest that normal atmospheric conditions are satisfactory for penetration of enzyme formulation into crimped stems, and that extraordinary measures are not required to expedite the enzyme-retting process. 相似文献
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亚麻新品种黑亚14号的应用效果及评价 总被引：2，自引：0，他引：2
黑亚14号是黑龙江省农业科学院经济作物研究所以高纤、抗倒、早熟的法国亚麻品种FANY为供体，以本所育成的高产亚麻品种黑亚10号为受体通过花粉管通道DNA导入选育的亚麻新品种。黑亚14号综合了亲本品种的优异遗传基因，具有高产、优质、抗倒伏、抗病性强等优点，2003-2005年在黑龙江省累计推广面积达到lO余万hm^2，增产亚麻原茎7万t，增加经济效益2．1亿元。黑亚14号不仅适宜于黑龙江省广大地区种植，还推广到吉林、内蒙、新疆、云南等十几个省（区），示范效果显著。 相似文献
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Fifteen varieties of white clover were sown in order to assess the seed yielding ability of new and potential varieties and to examine those plant factors which affect seed yield. Counts were made on number of inflorescences m-2 , proportion of ripe inflorescences and other inflorescence and seed characters. The data were used to compute potential seed yields.
Average potential seed yields were 276 and 76 kg ha-1 in the first and second year, respectively. The decrease in the second year seed yields underlines the overriding effect of adverse weather conditions during the critical June to August period. The major effect was a reduction in the number of inflorescences produced, the number of florets per inflorescence and seeds per floret.
Some of the new listed varieties have a significantly higher seed potential than SI00, e.g. Menna (+ 38%) and Olwen (+28%), and this should facilitate the production of adequate seed supplies of British bred varieties. 相似文献
Average potential seed yields were 276 and 76 kg ha
Some of the new listed varieties have a significantly higher seed potential than SI00, e.g. Menna (+ 38%) and Olwen (+28%), and this should facilitate the production of adequate seed supplies of British bred varieties. 相似文献
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本文介绍了黑龙江省2000-2006年纤维亚麻育种的重大进展，育成的8个纤维亚麻品种的长麻率比1991—1999年育成品种高1．5个百分点，接近国际先进水平；原茎产量超过国际先进水平。已成为黑龙江、吉林、内蒙、新疆、云南、湖南等十几个省区生产上主栽品种，有力地推动了我国亚麻产业的快速发展，前景十分广阔。 相似文献
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本文介绍了黑龙江省2000-2006年纤维亚麻育种的重大进展,育成的8个纤维亚麻品种的长麻率比1991-1999年育成品种高1.5个百分点,接近国际先进水平;原茎产量超过国际先进水平,已成为黑龙江、吉林、内蒙、新疆、云南、湖南等十几个省区生产上主栽品种,有力地推动了我国亚麻产业的快速发展,前景十分广阔。 相似文献
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为筛选出适宜麦茬免耕覆秸精量播种栽培方式的夏大豆品种(系),运用灰色综合评判法,对来自黄淮海地区的12个夏大豆品种(系)的12个主要农艺性状进行综合分析,对各参试品系的灰色综合评判等级排序。结果表明:商豆1201、冀豆12、菏豆14的综合性状表现突出、产量高,可作为推广麦茬免耕覆秸精量播种技术的主要种植品种;郑7051、周豆22号、阜豆16及山宁19的农艺性状表现也较好,产量高于对照,可适当推广种植;皖豆21144、徐9302-A及皖宿01-15灰色综合评判值低于对照,中黄39的产量低于对照,但是相差很小。本研究表明所有参试品系均适宜免耕覆秸精量播种栽培方式,免耕覆秸精量播种技术在黄淮海地区具有广阔的应用前景。 相似文献
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The nonionic reverse micelles used for dyeing cotton fiber were prepared with a non-ionic surfactant Triton X-100 (TX-100) by injecting small amount of reactive dye aqueous solution. The adsorption capacity of three water-soluble anionic azo dyes including Reactive Blue 222, Reactive Red 195 and Reactive Yellow 145 onto cotton fiber was investigated. The Langmuir and Freundlich isothermals were employed to model the adsorption data. In addition, the color strength and fixation rate of cotton fabrics dyed in the reverse micelles and bulk water were examined and compared. The salt and alkali as influencing factors were also discussed. The FT-IR spectra were employed to study the polarity of water added in reverse micelles. The results indicated that the adsorption of the dyes onto cotton showed better agreement with Langmuir model. The adsorption process was monolayer adsorption. Reactive Yellow 145 with lower negative charge and higher hydrophilicity exhibited the higher adsorption capacity. The fixation percentage and color strength of the cotton fiber dyed in TX-100 reverse micelles was higher than those in bulk water. The polarity of water in TX-100 reverse micelles was lower than that in bulk water. 相似文献
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H. J. Murphy M. J. Goven J. C. Campbell A. Hawkins J. D. Harrington S. L. Dallyn 《American Journal of Potato Research》1969,46(11):407-413
Foundation seed potatoes of Katahdin, Kennebec and Pungo varieties were treated with Fusarex dust at three dates during the 1966–67 storage season. In 1967 these treated seed potatoes were planted in uniform tests and compared with untreated and desprouted seed potatoes. Cooperators in Maine, Long Island, New Jersey, Pennsylvania and Connecticut planted the seed lots, recorded plant emergence, and obtained yield data. Initial emergence of Fusarex-treated and desprouted seed was delayed when compared with untreated seed except in Pennsylvania where both initial and final emergence of Pungo and Kennebec was improved by Fusarex treatment. Final emergence of January and March Fusarextreated seed of all three varieties was better than that of untreated and desprouted seed in Pennsylvania. At all other locations improvement of plant stand by Fusarex seed treatment was very erratic. The March Fusarex treatments resulted in an average yield equal to the untreated seed. Yield of tubers from chemically treated Katahdin seed was not significantly affected when compared with untreated seed at four of the five locations. November treatment of Kennebec seed with Fusarex adversely affected yields at three of the five locations. In Connecticut all Fusarex seed treatments reduced yields of Kennebec. Pungo seed treated with Fusarex produced yields in most cases that were not statistically higher than that of untreated seed. 相似文献