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<正>二十年前的1995年,我当时还在中国茶叶学会办公室工作,上海市茶叶学会来杭举办少儿茶艺夏令营,我有幸接待了这批小茶人。上海市是1992年开始在黄浦区少年宫,首先举办少儿茶艺学习班,经过三年的经历,上海少儿学茶已开始形成一定的规模,在市教委成立了少儿茶艺教研室,许多学校成立了教研组。这次组织少儿茶艺夏令营,到龙井茶的故乡来举行,目的是让孩子们参观和学习茶文化和茶的知识。因此,我带领孩子 相似文献
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11月13日,国内首个全程标准化综合性铁观音庄园——八马铁观音庄园项目在安溪龙门举行了隆重的开工典礼,第十届全国政协副主席罗豪才等国家和各级领导为该项目开工推杆启动。庄园项目占地面积500亩,计划总投资2亿元, 相似文献
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为了研究小麦遗传型和生理型雄性不育在生化机制上的异同,以遗传型[S型不育系ms(S)2611和ms(S)1376]和生理型雄性不育小麦西农2611和西农1376(高温诱导和化学杀雄剂SQ-1诱导的雄性不育)为材料,分别取其小孢子处于单核早期的幼穗,单核后期、二核期、三核期的花药及旗叶进行了可溶性蛋白质的比较研究.结果表明,从不同发育时期的旗叶可溶性蛋白中尚未发现特异蛋白的存在,但在花药中发现有特异蛋白的存在,表现在二核期生理型雄性不育及遗传型雄性不育材料均比正常的可育材料缺少了1条分子量为31 kD的多肽.这条多肽很可能是花粉发育过程中某一环节所必需的,缺少了它就形成不育,因此这条多肽很可能和育性相关. 相似文献
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铃丰保牌氨基酸叶面肥是由江苏省扬州市春泉生物化学场生产的一种液体肥料,2007年通过在田间作物棉花上的示范试验,校验其大田应用肥效和经济效益,为该肥料的推广提供科学依据。1示范试验设计供试叶面肥总示范面积1.33hm2(集中连片),喷清水对照面积0.13hm2。试验安排在宿松县棉 相似文献
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简述黑龙江省甜菜产业改革以来取得的成绩,分析成绩产生的原因,采取的主要措施和存在问题及发展思路。 相似文献
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<正>连绵茶山,春意盎然。2月25日,羊年春节后上班第一天,省委常委、宣传部长葛慧君赴联系点磐安县尚湖镇开展"上下同欲抓落实,齐心助推开门红"调研活动,进基地,问农事,访民情,面对面听取基层干部群众心声,共同探讨抓落实促发展对策。走访首站定在乡村生态茶园。磐安是全国重点产茶县,全县有茶园面积8.7万亩,玉山台地是该县茶叶主产区,光尚湖镇就有 相似文献
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丁亥岁末,一个阴晦的下午,我缓缓地入了端门,取出壶友梁娟赠我的票,入了故宫,走着那坎坷不平的砖地,我不觉回想起四十多年前,刚入北大不久,由历史系老师领着我们新生参观故宫,颇为自豪地告诉我们,在全国,仅北大历史系师生只需出示工作证、学 相似文献
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LIU Ruixian XIAO Xianghui GONG Juwu LI Junwen ZHANG Zhen LIU Aiying LU Quanwei SHANG Haihong SHI Yuzhen GE Qun IQBAL Muhammad Sajid CHEN Quanjia YUAN Youlu GONG Wankui 《棉花研究(英文)》2020,3(1):54-62
Background:Plant height(PH)and fruit branch number(FBN)are important traits for improving yield and mechanical harvesting of cotton.In order to identify genes of PH and FBN in cotton germplasms to develop superior cultivars,quantitative trait loci(QTLs)for these traits were detected based on the phenotypic evaluation data in nine environments across four locations and 4 years and a previously reported genetic linkage map of an recombinant inbred line(RIL)population of upland cotton.Results:In total,53 QTLs of PH and FBN,were identified on 21 chromosomes of the cotton genome except chromosomes c02,c09-c11,and c22.For PH,27 QTLs explaining 3.81%–8.54%proportions of phenotypic variance were identified on 18 chromosomes except c02,c08-c12,c15,and c22.For FBN,26 QTLs explaining 3.23%–11.00%proportions of phenotypic variance were identified on 16 chromosomes except c02-c03,c06,c09-c11,c17,c22-c23,and c25.Eight QTLs were simultaneously identified in at least two environments.Three QTL clusters containing seven QTLs were identified on three chromosomes(c01,c18 and c21).Eleven QTLs were the same as previously reported ones,while the rest were newly identified.Conclusions:The QTLs and QTL clusters identified in the current study will be helpful to further understand the genetic mechanism of PH and FBN development of cotton and will enhance the development of excellent cultivars for mechanical managements in cotton production. 相似文献
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Gray leaf spot(GLS)caused by Cercospora zeae-maydis and C.zeina is an extremely devastating leaf disease that limits maize production annually.The use of GLS-resistant maize hybrids is the most cost-effective approach for reducing losses.Resistance to GLS is quantitatively inherited in maize(Zea mays L.)and further sources of resistance remain to be analyzed.Here,we detected qRgls1.06,a major quantitative trait locus for GLS resistance in bin 1.06 that explained approximately 55%of the phenotype variance.Fine mapping over 2 consecutive years localized qRgls1.06 to a 2.38-Mb region.Homozygous qRgls1.06WGR/WGR plants in DZ01 background displayed higher GLS resistance and 100-grain weight than DZ01 plants.The GLS responses of several susceptible elite inbred lines were improved by the introduction of qRgls1.06 by marker-assisted backcrossing.Our findings extend the understanding of the genetic basis of resistance to GLS and provide a set of resistant germplasm for genetic improvement of resistance to GLS in maize. 相似文献
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实践证明,棉农是国家实施棉花良种补贴的最大受益者,实现了棉花良种补贴的主要目的.有人对棉花良种补贴持有不同的态度,是因为棉农、种子企业和基层农技推广部门等相对独立的利益主体,均以从项目实施中获利多少来评价政策的优劣.棉种市场混乱是制约项目实施的关键因素,要提高项目实施水平,必须采取综合措施,重点是整治棉种市场,简化补贴操作程序. 相似文献