共查询到20条相似文献，搜索用时 468 毫秒
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李天真 《湖州职业技术学院学报》2006,4(2):80-87
综述了稻米营养品质的概念,稻米蛋白质及氨基酸、脂肪、维生素和矿物质的营养价值评价,稻米营养品质与外观品质、蒸煮食用品质、碾米品质的相关性,品种遗传、环境生态和栽培因子、不同肥源、干燥贮藏等对稻米营养品质的影响等相关研究进展。 相似文献
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优质稻米与环境技术条件的影响因子 总被引：1，自引：0，他引：1
概要介绍了优质稻米的内涵，包括：加工品质、外观品质、蒸煮食用品质、营养品质、卫生品质和风味品质。指出稻米出糙率、整精米率、垩白率、垩白度、直链淀粉含量、胶稠度和长宽比等七项指标，可视为评定优质稻米的主要指标。而影响稻米品质的环境、技术因素有：温度、光照、土壤水分、施肥、播种期、收获期与方法等。 相似文献
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《赤峰学院学报(自然科学版)》2017,(6)
水稻是我国最重要的粮食作物之一,垩白不但影响稻米的外观和加工品质而且影响稻米的蒸煮和食味品质,它是水稻非常重要的品质性状.本文主要介绍了水稻垩白在显微镜下的结构特点,以及垩白的显微观察在生物实验和教学中的作用,以期为生物实验与教学提供参考与借鉴. 相似文献
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水稻米香基因的初步定位 总被引：2，自引：0，他引：2
吴娟 《安徽科技学院学报》2005,19(3):1-5
香味是水稻重要食味品质性状之一,但稻米香味的遗传甚为复杂.早有报道水稻米香基因位于第八条染色体上且与RFLP标记RG28紧密连锁.本实验通过水稻籼粳亚种之间的杂交,利用SSR(Simple Sequence Repeat)分子标记的方法对水稻米香基因进行初步定位.结果表明:稻米香味性状受一对隐性基因控制,且位于第八条染色体SSR标记RM8264和RM1109之间,其遗传距离大约2.1cM.这一结果将对于米香基因的精细定位提供了重要依据. 相似文献
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杂交中籼稻扬两优6号因抗逆性强,丰产性好,稻米品质优良而倍受我县广大农民的青睐.随着种植面积的不断扩大,其高产栽培技术和病虫害防治也就成为摆在我们面前的一项重要而紧迫的工作. 相似文献
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观察分析了自选水稻两用不育系208s的育性表现和配组优势，结果表明：208s具有低的不育起点温度，高的异交结实性，优良的稻米外观品质；208s与优质亲本配组的两系杂交稻，优势强，稻米外观品质优，可作为两系优质杂交稻选育的优质适用型亲本． 相似文献
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以IR36 × [(桂花黄×红光稻 )F5×国际大粒香稻 ]F4(香籼型 )复合杂交为组合方式 ,研究F2 、F3单粒稻米香味的遗传特点。结果表明 :杂种稻米 (F2 )无香味 :有香味符合 15∶1的遗传分离化。取用F2 的纯合香型单粒种植 ,经剥蘖繁殖得 4 8个F3样品 ,经分组取样分析 ,得F3香味程度分离符合数量遗传规律。结合有关研究提出 :水稻香味性状遗传为质量———数量遗传 ,其遗传控制主要受制于两对独立遗传的隐性主基因 ,同时有至少两对微效基因参与作用。介绍了稻米香味与食味的关系及稻米香味品质质量的评价 相似文献
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无公害稻米是由有机稻米、绿色食品稻米和低残留稻米组成。由于“石油农业”发展,稻田大量施用化肥和农药,构成对稻米的污染,生产无公害稻米势在必行。生产上应该推广一整套无公害稻米生产技术,实现稻米生产全过程无公害。 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
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《海外英语》2007,(4):36
There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love. 相似文献
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Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject. 相似文献
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Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
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Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities. 相似文献
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RUZBEHANI Mohsen 《重庆大学学报(英文版)》2004,3(1):20-25
1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec… 相似文献