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脱毒马铃薯试管苗不同育苗基质处理对原原种产量的影响 被引量:4
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作者 闫志山 杨骥 +2 位作者 范有君 张玉霜 周艳丽 《中国马铃薯》 2003年第6期345-346,共2页
在日光温室内,采用不同基质及其载体,进行马铃薯试管苗的育苗栽植,成活后移栽到网棚内生产原原种。结果表明:采用8cm×8cm营养钵内装草炭、腐熟猪粪土、珍珠岩1∶1∶1按比例混合的营养基质栽植的试管苗,提高原原种的产量效果最为明显。
关键词 脱毒马铃薯 试管苗 育苗基质 原种产量
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原原种栽培密度与模式对马铃薯植株生长发育及原种产量的影响 被引量:4
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作者 崔雯 《农业科技与信息》 2022年第7期14-16,共3页
为探究马铃薯原原种小型化(单薯重 20~50 g)生产技术模式,以费乌瑞它为指示品种,在庄浪县通化镇通边村进行了原原种不同栽培密度与模式对马铃薯植株生长发育及原种产量的影响试验。结果表明:在黑色地膜覆盖种植条件下,原原种播种密度为 ... 为探究马铃薯原原种小型化(单薯重 20~50 g)生产技术模式,以费乌瑞它为指示品种,在庄浪县通化镇通边村进行了原原种不同栽培密度与模式对马铃薯植株生长发育及原种产量的影响试验。结果表明:在黑色地膜覆盖种植条件下,原原种播种密度为 14.7 万株 /hm;时,马铃薯植株生物学性状表现最好,原种产量和中薯率最高,分别为 3.693 7 万 kg/hm;、26.92%,可在相同生态类型区小型化原种繁育中推广应用。 展开更多
关键词 马铃薯 原种 密度 栽培模式 生长发育 原种产量
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不同基质生产脱毒马铃薯原原种产量比较 被引量:10
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作者 李殿军 苏允华 +2 位作者 闫任沛 乔雪静 孙东显 《中国马铃薯》 2005年第2期87-88,共2页
结合当地脱毒马铃薯大面积推广应用,马铃薯原原种需求量很大,而生产成本很高,2003~2004年,在日光温室内采用不同基质混配,用扦插苗生产脱毒马铃薯原原种,选出可以提高产量,廉价的基质,结果表明,采用砂子+羊粪,按3∶1配制,与其它处理相... 结合当地脱毒马铃薯大面积推广应用,马铃薯原原种需求量很大,而生产成本很高,2003~2004年,在日光温室内采用不同基质混配,用扦插苗生产脱毒马铃薯原原种,选出可以提高产量,廉价的基质,结果表明,采用砂子+羊粪,按3∶1配制,与其它处理相比单株结薯量高,产量高,薯块色泽好,可大幅度节约成本。 展开更多
关键词 基质 脱毒马铃薯 原种产量
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马铃薯威芋3号脱毒原原种重量对原种产量及其性状的影响 被引量:3
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作者 王朝海 顾霄 +3 位作者 王朝贵 白永生 周平 顾尚敬 《现代农业科技》 2011年第5期107-108,110,共3页
马铃薯新品种威芋3号脱毒原原种重量对原种产量及其性状的影响研究结果表明:脱毒马铃薯原种产量与原原种的重量存在着明显的关系,随着原原种粒重的增加,原种产量有逐渐升高的趋势,同时在每窝粒数、平均粒重、大中薯率3个经济性状上也存... 马铃薯新品种威芋3号脱毒原原种重量对原种产量及其性状的影响研究结果表明:脱毒马铃薯原种产量与原原种的重量存在着明显的关系,随着原原种粒重的增加,原种产量有逐渐升高的趋势,同时在每窝粒数、平均粒重、大中薯率3个经济性状上也存在相同趋势。原原种粒重5.0 g以上的原种产量差异不显著,但比5.0 g以下产量差异极显著,原原种粒重2.0~4.0 g原种产量差异不显著,比原原种粒重0.5 g和1.0 g差异极显著,说明1.0~5.0 g是原原种粒重经济有效的控制区间。 展开更多
关键词 脱毒马铃薯 威芋3号 原种重量 原种产量 相关性
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渝马铃薯3号原原种薯大小对其主要性状和原种产量的影响 被引量:2
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作者 徐茜 宗洪霞 +2 位作者 张兴端 伍勇 黎华 《中国种业》 2017年第10期44-46,共3页
研究了渝马铃薯3号原原种的不同种薯大小对其植株性状和原种产量的影响,结果表明,不同原原种薯大小对渝马铃薯3号原种生产的主要性状株高、主茎数、单株结薯数、单株薯重有明显影响,表现出随原原种薯大小的增大,其株高、主茎数、单株结... 研究了渝马铃薯3号原原种的不同种薯大小对其植株性状和原种产量的影响,结果表明,不同原原种薯大小对渝马铃薯3号原种生产的主要性状株高、主茎数、单株结薯数、单株薯重有明显影响,表现出随原原种薯大小的增大,其株高、主茎数、单株结薯数增加,单株薯重提高;而商品薯数量占比和商品薯重量占比与原原种薯大小无关。本研究表明,渝马铃薯3号原种生产应选择5g及以上的原原种作种薯,以保证获得较高的原种产量。 展开更多
关键词 渝马铃薯3号 原种 主要性状 原种产量
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马铃薯脱毒苗移栽期差异对病害发生及产量的影响 被引量:4
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作者 任静 陈以相 +3 位作者 陈建斌 李作森 蒋春和 王海宁 《云南农业大学学报(自然科学版)》 CSCD 北大核心 2017年第3期402-409,共8页
【目的】本试验以探索经济、高效的马铃薯原原种繁育时间为目的,为昆明地区马铃薯原原种生产提供指导。【方法】以马铃薯‘合作88’为试验材料,设14个不同移栽期,研究温室条件下不同时间移栽对马铃薯脱毒苗病害发生及产量的影响。【结... 【目的】本试验以探索经济、高效的马铃薯原原种繁育时间为目的,为昆明地区马铃薯原原种生产提供指导。【方法】以马铃薯‘合作88’为试验材料,设14个不同移栽期,研究温室条件下不同时间移栽对马铃薯脱毒苗病害发生及产量的影响。【结果】移栽时间不同的马铃薯脱毒苗植株早疫病和晚疫病的发生存在显著差异(P<0.05)。T1的早疫病病情指数和发病率最大,但其晚疫病病情指数和发病率最小;T14的晚疫病病情指数和发病率最高,且显著高于其他处理(P<0.05);移栽时间不同,温室中马铃薯脱毒苗植株原原种产量和种薯规格有显著差异(P<0.05),主要表现在薯块大小和薯块数量上的差别,T1、T10和T12的大、中种薯率和原原种产量均高于其他处理。【结论】适宜马铃薯脱毒苗移栽的时间为上半年的T1(4月4日)、下半年的T10(8月17日)和T12(9月16日)前后一周。 展开更多
关键词 马铃薯脱毒苗 移栽时间 晚疫病 早疫病 原种产量
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Agronomic Evaluation of New Cassava Varieties Introduced to Farmers in Nigeria 被引量:1
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作者 Samson Adeola Odedina Joy Nwakaego Odedina +1 位作者 Mary Omofolarin Ogunkoya Stephen Olusola Ojeniyi 《Journal of Life Sciences》 2012年第8期939-944,共6页
In 2005, 10 new cassava varieties were officially selected and released to farmers in Nigeria for high root yield, high dry matter content and acceptability for food. This work compared in three on farm locations, the... In 2005, 10 new cassava varieties were officially selected and released to farmers in Nigeria for high root yield, high dry matter content and acceptability for food. This work compared in three on farm locations, the root and stem yield of these varieties together with an old improved variety currently in farmers' field. In all the locations, root yield of all the new materials were significantly higher (P 〈 0.05) than the old improved variety. The root yields of the new varieties were between 40%-50% higher than the old improved varieties. Overall yield advantages of the new materials over the old improved material ranged between 40%-150%. Stem yield figures showed significant variations with few of the new varieties producing higher stem yield in comparison with the old improved variety due to inherent growth pattern. Figures for tuber girth and node numbers per unit of stem were similar. The high yield levels of the new varieties might lead to high demand for stems indicating the likely wider spread and higher demand for varieties with high stem yield potentials. 展开更多
关键词 Cassava varieties stem yield root yield.
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Contribution of Promiscuous Soybean (Glycine max L.) to Upland Rice-based Cropping Systems in West Africa 被引量:2
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作者 S. Oikeh P. Houngnandan +3 位作者 A. Robert A. Niang A. Toure B. Kone 《Journal of Agricultural Science and Technology》 2010年第1期54-61,共8页
A two-year on-farm study was carried out at Eglime in the moist savanna (MS) and Ouake in the dry savanna (DS) of Benin to evaluate the contribution of inoculation of dual-purpose soybean varieties to grain yield ... A two-year on-farm study was carried out at Eglime in the moist savanna (MS) and Ouake in the dry savanna (DS) of Benin to evaluate the contribution of inoculation of dual-purpose soybean varieties to grain yield of upland NERICA rice fertilized with low N level. In 2005, four dual-purpose, promiscuous soybean varieties (cv. TGx1440-IE; TG×1448-2E; TG×1019-2EB; and TG×1844-18E), and a popular improved variety (cv. Jupiter) were sown in 12 farmer fields with and without Bradyrhizobium japonicum inoculation. There was also land which was left fallow that acted as the control. In 2006, upland interspecific rice (NERICA 1) was sown in all the plots and supplied with 15 kg N haL. Dry matter yield, N accumulation, and net N-balance were significantly enhanced by over 40% with inoculation of cv. TG× 1844-18E than non-inoculation in the DS in comparison to other cultivars. There were no significant effects of inoculation of previous soybean cultivars on soybean grain yield and on the succeeding NERICA rice yield. Averaged over inoculation, previous cv. TG× 1019-2EB plots supplied with only 15 kg N hal gave the highest grain yield, more than twice the yield of control plots in the DS, possibly because of significant production of higher tillers, panicles and harvest index than the other cultivars; and it could be recommended for upland rice-based system for NERICA production. 展开更多
关键词 BRADYRHIZOBIUM crop rotation degraded savanna promiscuous soybean NERICA rice.
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Changes of Pectin Quantity in Fresh and Frozen Apple Products
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作者 Boca Sigita Krasnova I. +2 位作者 Seglina D. Aboltins Skrupskis I. 《Journal of Chemistry and Chemical Engineering》 2013年第1期64-69,共6页
Recently more and more innovations enter the manufacture of food products and one of them is food hydrocolloids. Food colloids open a lot of different possibilities in dessert production, which are used to perform cer... Recently more and more innovations enter the manufacture of food products and one of them is food hydrocolloids. Food colloids open a lot of different possibilities in dessert production, which are used to perform certain functions. Pectin is a traditional agent for jams and jellies, but its application extends to fruit products for the food industry. In food product technology pectin is added as gelling agent and stabilizer. The three apple varieties "Antonovka", "Baltais Dzidrais" and "Zarja Alatau" harvested in Latvia State Institute of Fruit Growing were used for the experiment. Photometric measurement was used to determine the composition of pectin. Pectin was isolated from the apple mass by leaching with ethanol, and from the residues by extracting with diluted sodium hydroxide solution. By adding carbasol and sulphuric acid to the extract, through different intermediate stages carroty condensation product formed, which was photometrically measured at 525 nm. Pectin, pH and soluble dry matter were determined in fresh and frozen apple mass from apples of three ripeness stages. On the basis of worked out functional analysis of colloids, it is possible to optimize regulation of heat processes for different ripeness stages of apples. It is established that ripeness stage influences pectin quantity in fruits, but there are no data about pectin quantity changes in frozen fruits. By fruit ripening under the impact of enzyme protopectinase, protopectin hydrolyzes and transforms into pectin, which flows from the intercellular spaces into protoplasm of cells. Therefore ripe as well as heat treated fruits are soft and loose. It is important to measure pectin in frozen apple mass, in order to determine its potential jellying power. For each kind of product appropriate conditions have to be chosen for freezing, as well as the condition of products before freezing has to be taken into consideration in order to reduce the harmful influence on their quality to the minimum. The results of the research indicate that pectin quantity in frozen apple mass has decreased substantially. This susceptibility of sugar containing products to temperature fluctuations possibly is due to their high concentration of unfrozen water and lower melting temperature. It is possible to calculate the mass fraction of ice depending on temperature and moisture content in product which is very important for prognosticating the product quality. The aim of the research is to compare changes of pectin quantity in fresh and frozen apple products depending on storage time. The research is related to application possibilities of the current colloids, which are used in food industry at present. 展开更多
关键词 FRUITS jellying power HYDROCOLLOIDS FREEZING storage
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