共查询到20条相似文献，搜索用时 156 毫秒
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枣果冷藏保鲜试验研究 总被引：8，自引：0，他引：8
对１１个枣树品种进行了鲜果冷藏保鲜试验，证明不同品种贮藏效果不同。以耐贮性中等的金丝小枣为试材，采用多种消毒方法和保鲜处理，证明不同处理与对照冷藏效果差异不明显，说明金丝小枣保鲜贮藏的技术关键是低温、高湿的环境条件，药物处理可以简化。 相似文献
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板栗贮藏保鲜问题及解决措施 总被引：1，自引：0，他引：1
为给板栗的贮藏保鲜提供理论依据和技术指导,概述了板栗贮藏保鲜过程中的常见问题及解决办法：贮藏保鲜期间板栗质量下降的主要表现（栗实的腐烂变质、风干失重,栗实的发芽）;影响板栗贮藏保鲜的因素及机理（贮藏期间栗实的生理变化,不同产区不同品种板栗的耐贮性,不同的采收和堆制方法,贮藏保鲜场所的环境条件）;贮藏保鲜期间防止板栗损耗的主要措施（贮藏前的科学准备和防止栗实发芽）;板栗贮藏保鲜的几种方法（简易贮藏、低温冷藏、辐射贮藏、气调贮藏和空气离子贮藏）。 相似文献
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对11个枣树品种进行了鲜果冷藏保鲜试验，证明不同品种贮藏效果不同。以耐贮性中等的金丝小枣为试材，采用多种消毒方法和保鲜处理．证明不同处理与对照冷藏效果差异不明显，说明金丝小枣保鲜贮藏的技术关键是低温、高湿的环境条件，药物处理可以简化。 相似文献
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毛竹春笋保鲜技术研究 总被引：9，自引：2，他引：9
用毛竹春笋在１℃左右的恒温冷库下，采用５种方法进行贮藏保鲜，结果表明：带壳鲜笋采用抽气速冻冷藏方法的效果最为理想，可贮藏３个月以上；其次是带壳鲜笋抽气冷藏；而一般冷藏和剥壳后进行贮藏，其保鲜期都很短。建议在有条件的情况下，大量贮藏毛竹春笋可采用抽气速冻冷藏方法进行保鲜。 相似文献
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Nai李在常温条件下难以贮藏保鲜，经对Nai李的贮藏保鲜进行研究，用保鲜剂利用的Nai李冷藏保鲜30－45d，好果率达95％以上，果料风味较好。 相似文献
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总结了板栗五种贮藏方法和贮前种子的药剂处理对其贮藏保鲜率的影响,指出:湿砂和湿木屑层积堆藏的贮藏保鲜率高,同时具有催芽作用,可作为种用栗的贮藏方法;罐藏和冷藏贮藏保鲜率也较高。可作为食用栗的贮藏方法;板栗贮藏前,一定要经过药物处理。 相似文献
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A regional study of consumer satisfaction and preferences for various chestnut attributes was conducted in 2009. Surveys were distributed to five chestnut growers/sellers in Missouri, Iowa, Kansas, Ohio and Illinois to accompany chestnut sales to their individual customers. Returned surveys represented consumers from 18 states, mainly the U.S. Midwest but also from the East and West coasts. The survey measured consumer satisfaction with the chestnuts purchased (by using affective, cognitive and behavioral constructs), assessed consumer’s general knowledge about chestnuts, frequency of consumption and familiarity with cooking. The survey also included a choice-based conjoint analysis to evaluate the effects of origin, production process and price on consumer preferences for chestnuts. Results show that high satisfaction with chestnuts purchased increases the likelihood of future purchase. Most consumers who buy chestnuts know that chestnuts need to be refrigerated but more educational effort is needed regarding the low fat content of chestnuts as compared to other nuts and the gluten-free attribute of chestnut flour. Conjoint analysis of chestnut attributes (origin, production process and price) confirmed results of past studies. Holding other attributes constant, chestnut origin is the most important attribute influencing purchases, consumers strongly preferring locally grown chestnuts over U.S. grown or imported. Chestnuts grown organically or pesticide free were preferred over conventional production. Price also has a significant influence on the purchase decision but its relative effect was lowered when bundled with the other product attributes. 相似文献
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Francisco X. Aguilar Mihaela M. Cernusca Michael A. Gold Carla E. Barbieri 《Agroforestry Systems》2010,79(1):19-29
A study of frequency of consumption and familiarity with preparing chestnuts was conducted in the state of Missouri from 2003
to 2008. A conjoint analysis of chestnut attributes was completed in 2008 to expand on previous consumer preference research.
Information from final consumers was collected during the annual Missouri Chestnut Roast festival at the Horticulture and
Agroforestry Research Center in New Franklin, Missouri. The study tracks changes in frequency of consumption and consumer
familiarity with preparing chestnuts. The conjoint analysis evaluated pair-wise profiles to quantify the effects of origin,
production process and price on consumer preferences. Results show improvements in the frequency of consumption and familiarity
with cooking chestnuts in Missouri. Findings suggest the festival has influenced consumption patterns among return visitors.
The conjoint analysis identified locality of produce and organic certification to be major drivers behind consumer preferences.
Price is also an important attribute influencing consumer preferences. Conjoint analysis results indicate that chestnuts grown
in Missouri or the U.S. carrying an organic label can capture price premiums. 相似文献
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鲜叶保存方法对杜鹃红山茶基因组DNA提取的影响 总被引：4，自引：0，他引：4
以富含次生代谢物的杜鹃红山茶嫩叶为材料,研究了杜鹃红山茶鲜叶保存方法及其基因组DNA提取方法。结果表明,改进的CTAB和SDS区室法都适合杜鹃红山茶基因组DNA的提取,能提取到完整性较好、纯度较高的基因组DNA。采用-20℃、液氮、硅胶脱水干燥3种方法保存样品,均可获得高质量DNA,说明硅胶脱水干燥法保存样品的方法可行,为远距离采样提取杜鹃红山茶DNA提供了一种较好的鲜叶保存方法。 相似文献
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Effectiveness of a detached‐leaf assay as a proxy for stem inoculations in backcrossed chestnut (Castanea) blight resistance breeding populations 
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下载免费PDF全文 A recently developed detached‐leaf blight resistance assay has generated interest because it could reduce the amount of time needed to evaluate backcrossed hybrid trees in the American chestnut blight resistance breeding programme. We evaluated the leaf inoculation technique on a sample of advanced progeny from the Indiana state chapter American Chestnut Foundation breeding programme, along with susceptible American chestnut (Castanea dentata), the recurrent parent, and resistant Chinese chestnut (Castanea mollissima), the donor parent for blight resistance. In experiments over 2 years using two pathogen isolates, we found no biologically meaningful relationship between leaf lesion size and the size (length and width) or severity (1–5 canker severity rating) of stem cankers on 5‐year‐old trees. Chinese chestnuts did develop significantly smaller leaf lesions than American or backcrossed chestnuts. We conclude that while the detached‐leaf assay may have utility in some chestnut breeding applications, it is not a suitable proxy for the established practice of stem inoculations. 相似文献
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山区土地资源优化配置的主体核心是确定各种农作物、林果、牧草资源的占地比例及规模。装水镇土地资源优化配置利用方向,在于建设发展以板栗、苹果为主的林果生产基地,畜牧养殖业在于发展以消耗饲草为主的大牲畜(主要是牛)和山羊,另外,种植在5级地上的粮食作物,应以旱作为主。 相似文献