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Natural Science 2014年第8期6卷 583-596页

作者： Zakaria M. Sawan Cotton Research Institute Agricultural Research Center Ministry of Agriculture & Land Reclamation Giza Egypt

关键词： Cotton Flower and boll Production boll Retention Evaporation Relative Humidity Sunshine Duration Temperature

Effect of 1-MCP on boll Development and Subtending Leaves of Cotton (<i>Gossypium hirsutum</i>L.) Plants

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American Journal of Plant Sciences 2014年第21期5卷 3345-3353页

作者： Yuan Chen J. Tom Cothren Dehua Chen Amir M. H. Ibrahim Leonardo Lombardini Department of Soil and Crop Sciences Texas A & M University College Station USA Jiangsu Provincial Key Laboratory of Crops Genetics and Physiology Yangzhou University Yangzhou China Department of Horticultural Sciences Texas A & M University College Station USA

Ethylene regulates multiple physiological processes in cotton (Gossypium hirsutum L.) ranging from square and boll abscission to senescence. This field study investigated the effect of an ethylene inhibiting compound 1-methylcyclopropene (1-MCP) on boll development and the corresponding subtending leaves. The study was conducted in 2011 and 2012 at the Texas A & M Agri-LIFE Research Farm in Burleson County, TX. The study consisted of two rates of 1-MCP (0 and 10 g a.i. ha-1) applied at one and two weeks after first flower. boll development and subtending leaves were studied on the tagged flowers during the growing season. 1-MCP treatment increased cotton boll weight at 20 days after flowering. This study showed that 1-MCP-treated subtending leaves exhibited decreased membrane damage and lipid peroxidation, and higher chlorophyll content and photosynthetic efficiency at 20 to 30 days after flowering. The healthier state of subtending leaves should have provided more carbohydrates for the fruits which could partially explain the reason for the increased boll weight. However, this beneficial effect of 1-MCP did not last to the end of the growing season and failed to result in a yield increase ultimately. Multiple applications or extending effective duration of 1-MCP is desirable to enhance the activity of 1-MCP to make a significant difference in cotton yield.

关键词： 1-MCP Ethylene Abscission Leaf Senescence Subtending Leaf boll Development

Plant Nutrient Status during boll Development and Seed Cotton Yield as Affected by Foliar Application of Different Sources of Potassium

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American Journal of Plant Sciences 2013年第7期4卷 1409-1417页

作者： Nirmal Kaur Sekhon Chandra Bhushan Singh Department of Soil Science Punjab Agricultural University Ludhiana India.

Bt cotton hybrids require large supply of metabolites to support their greater boll load and commonly suffer from premature leaf senescence. A field experiment was conducted to study the nutritional status of Bt cotton leaves during boll development stage and to evaluate the most profitable source of foliar fertilizers. Treatments included basal application of 0 and 60 kg·K2O·ha-1 as muriate of potash (MOP) in main plots and foliar spray treatments viz: 4 & 6 sprays of 2% potassium nitrate (Multi-K, 13-00-45), 4 & 6 sprays of NPK Blend (Polyfed, 19-19-19), 4 sprays of MOP, 4 sprays of MOP + urea (to supply same amount of N & K as in potassium nitrate) and unsprayed control in sub plots. The results revealed that only N and K contents of premature senesced leaves were below the sufficiency range for cotton sufficient levels of P, Fe, Mn, Zn and Cu were observed. Though the concentrations of N and K in both the petiole and leaf blade initially improved with foliar spray, N content declined below the unsprayed control at later stages. Basal application of MOP increased seed cotton yield by 19%. Four foliar sprays of KNO3, NPK, MOP and MOP + urea recorded yield increase in seed cotton yield of 22.8%, 22.4%, 18.5% and 24.5%, respectively over unsprayed control. Six sprays of KNO3 and NPK had no yield advantage over four sprays and rather proved economically less viable.

关键词： Cotton Foliar Fertilizers boll Development Potassium Nitrogen

藏绵羊boll的分子特征及其在睾丸中的表达调控与功能分析

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中国农业科学 2020年第20期53卷 4297-4312页

作者：李讨讨王霞马友记尹德恩张勇赵兴绪甘肃农业大学动物科学技术学院甘肃肉羊繁育生物技术工程实验室甘肃农业大学动物医学院

【目的】boll作为一个RNA结合蛋白,可通过与其他分子相互作用而在精子发生过程中发挥不可或缺的作用。研究旨在分析藏绵羊boll的序列特征及其在睾丸中的表达与分布模式,进而探究其表达调控与潜在的生物学功能,以期为进一步解读boll在绵... 详细信息

【目的】boll作为一个RNA结合蛋白,可通过与其他分子相互作用而在精子发生过程中发挥不可或缺的作用。研究旨在分析藏绵羊boll的序列特征及其在睾丸中的表达与分布模式,进而探究其表达调控与潜在的生物学功能,以期为进一步解读boll在绵羊精子发生中的作用机制提供必要的思路和分子见解。【方法】选取3月龄(性成熟前)、1岁龄(性成熟)和3岁龄(成年)3个关键发育阶段各8只健康的雄性藏绵羊。以睾丸组织总RNA为模板,采用RT-PCR技术克隆藏绵羊boll的完整编码序列(coding sequence,CDS)区;通过相关生物信息学软件对boll的序列与结构特征及其互作蛋白进行分析;采用实时荧光定量PCR(quantitative real time PCR,qRT-PCR), Western blot和免疫荧光染色法对boll在3个发育阶段睾丸组织中的表达和免疫定位特征进行检测;基于课题组前期有关藏绵羊睾丸组织全转录组测序数据,借助相关数据库进行绵羊boll的竞争性内源RNA(competing endogenous RNA,ceRNA)调控网络和功能注释分析,并采用qRT-PCR和双荧光素酶报告实验对其表达特征及靶向关系进行验证。【结果】藏绵羊boll CDS区全长为888 bp,可编码295个氨基酸,含有由81个氨基酸残基组成的RRM结构域(靠近N端)和25个氨基酸残基组成的DAZ重复基序。绵羊boll在不同哺乳物种间(特别是山羊、川南山地黄牛和牦牛)具有高度的序列同源性和进化保守性。boll蛋白与10个雄性生殖细胞发育相关蛋白质分子间存在潜在的相互作用。随着年龄的增加,在藏绵羊睾丸中boll mRNA的表达持续上调,而其蛋白的表达先上调后下调。boll蛋白主要存在于性成熟后(1岁龄和3岁龄)睾丸内的精子细胞中,也在精母细胞和整个发育阶段的精原细胞中有少量分布。qRT-PCR结果显示,与3月龄相比,在1岁龄和3岁龄睾丸中微小RNAs(microRNAs,miRNAs)oar-miR-127-5p、oar-miR-382-5p和oar-miR-760-3p的表达量极显著下调(Pboll 3′UTR野生型的荧光素酶活性,并且oar-miR-760-3p明显降低了野生型Circ-ECT2L和野生型LOC105616228报告基因的荧光素酶活性。【结论】报道了藏绵羊睾丸中boll的分子结构特征、表达规律及潜在的表达调控作用。boll主要在藏绵羊减数分裂后的圆形和长形精子细胞中表达,并且其表达受到oar-miR-127-5p和oar-miR-760-3p的直接靶向负调控以及oar-miR-760-3p介导的circRNA Circ-ECT2L和lncRNA LOC105616228的正向调控,进而可能与下游信号分子相互作用,以参与调节绵羊精子细胞向成熟精子分化。

关键词： boll 克隆藏绵羊睾丸精子发生

基于boll统计模型的智慧能源管控平台应用

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农村电气化 2022年第2期 42-44页

作者：刘腾飞魏茂杨营叶丛林石家庄科林电气股份有限公司河北石家庄050222

智慧能源管控平台可以基于先进的电力感知系统收集能源信息,通过平台综合能源评估和合理调控达到节能、高效的管理效果。本文根据boll统计模型开发智慧能源管控平台特有场景的统计计算,并以实例展示了电力能源中常规模拟量信号的boll统... 详细信息

智慧能源管控平台可以基于先进的电力感知系统收集能源信息,通过平台综合能源评估和合理调控达到节能、高效的管理效果。本文根据boll统计模型开发智慧能源管控平台特有场景的统计计算,并以实例展示了电力能源中常规模拟量信号的boll统计模型,能够更加具体和形象的展现电力数据的合理区间范围以及未来发展趋势。

关键词：智慧能源 boll 负荷曲线信赖区间

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云天化:boll带逐渐收紧

股市动态分析 2015年第15期 46-46页

云天化（600096）：公司主营磷矿、磷肥、氮肥、化工新材料以及商贸物流五大业务板块,产能主要有磷矿石1200万吨,磷酸二铵（DAP）415万吨,磷酸一铵（MAP）150万吨,复合肥276万吨,尿素136万吨,是国内磷化工巨头国企。2014年磷肥和氮肥等... 详细信息

云天化（600096）：公司主营磷矿、磷肥、氮肥、化工新材料以及商贸物流五大业务板块,产能主要有磷矿石1200万吨,磷酸二铵（DAP）415万吨,磷酸一铵（MAP）150万吨,复合肥276万吨,尿素136万吨,是国内磷化工巨头国企。2014年磷肥和氮肥等化肥业务收入占比近30%,毛利润占比为57%,是公司业绩主要来源。

关键词：天化 boll 化工新材料酸二铵磷酸一铵磷矿石商贸物流磷化工毛利润磷肥行业

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我武生物:boll带收紧,近期或突破

股市动态分析 2015年第10期 48-48页

我武生物（300357）：2014年实现营业收入2.40亿元,同比增长23.71%,实现净利润9955万元,同比增长41.08%,其中扣非后净利润9300万元,同比增长34.08%,实现EPS0.62元。公司拟以2014年12月31日总股本1.62亿股为基数,向全体股东以每1 0股派... 详细信息

我武生物（300357）：2014年实现营业收入2.40亿元,同比增长23.71%,实现净利润9955万元,同比增长41.08%,其中扣非后净利润9300万元,同比增长34.08%,实现EPS0.62元。公司拟以2014年12月31日总股本1.62亿股为基数,向全体股东以每1 0股派发现金股利人民币3元（含税）。

关键词：现金股利 boll 销售队伍营销团队市盈率预测数据相关产品民生证券皮肤点刺就诊率

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技术指标选股之MACD、boll选股法

商品与质量 2011年第26期 12-12页

作者：王继洲

王继洲是《财富课堂》栏目最新邀请的一位讲课嘉宾,曾在证券投资咨询公司任首席分析师。特别注重在重大的社会问题(包括突发性事件)、经济事件和政策导向中,梳理并前瞻最具成长性的投资主题和投资标的,并重视将国内外的经济发展趋势与... 详细信息

王继洲是《财富课堂》栏目最新邀请的一位讲课嘉宾,曾在证券投资咨询公司任首席分析师。特别注重在重大的社会问题(包括突发性事件)、经济事件和政策导向中,梳理并前瞻最具成长性的投资主题和投资标的,并重视将国内外的经济发展趋势与资本市场动态结合,在多年的实战中形成了自己的投

关键词：选股轨线股价股票价格技术指标 boll MACD

Spatial distribution of bolls affects yield formation in different genotypes of Bt cotton varieties

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Journal of Integrative Agriculture 2019年第11期18卷 2492-2504页

作者： NIE Jun-jun YUAN Yan-chao QIN Du-lin LIU Yan-hui WANG Shuang-lei LI Jin-pu ZHANG Mei-ling ZHAO Na GUO Wen-jun QI Jie MAO Li-li SONG Xian-liang SUN Xue-zhen State Key Laboratory of Crop Biology Ministry of Science and Technology/College of AgronomyShandong Agricultural UniversityTai’an 271018P.R.China Technical Guidance Station of Cotton Production in Shandong Province Jinan 250013P.R.China Qufu Agricultural Bureau Qufu 273100P.R.China Yantai Agricultural Technology Extension Service Yantai 264000P.R.China Seed Management Department of Pingdingshan Pingdingshan 467000P.R.China Shanghai Center for Plant Stress Biology Chinese Academy of SciencesShanghai 201602P.R.China

To optimize the spatial distribution of cotton bolls and to increase the yield,the relationship between yield components and boll spatial distribution was investigated among different Bt(Bacillus thuringensis)cotton varieties.A five-year field experiment was conducted to reveal the reasons for the differences in lint yield and fiber quality across three Bt cotton varieties with different yield formations from 2013 to *** lint yield of Jiman 169(the average yield from 2013-2017 was 42.2 g/plant)was the highest,i.e.,16.3 and 36.9%higher than Lumianyan 21(L21)and Daizimian 99B(99B),*** the differences in boll weight among the three cultivars were similar to the lint yield,while the others yield components were *** the increase in lint yield was mainly attributed to the enlargement in boll ***,the change in fiber quality was inconsistent with the lint yield,and the quality of L21 was significantly better than that of Jimian 169(J169)and 99B,which was caused by the diversity of boll spatial *** with 99B,the loose-type J169 had the highest number of large bolls in inner positions;the tight-type L21 had a few large bolls and the highest number of lower and middle *** approximately 80.72%of the lint yield was concentrated on the inner nodes in Jiman 169,compared with 77.44%of L21 and 66.73%of 99B during the five-year *** lint yield was significantly affected by the interannual changes,the lint yield of J169 was the highest and the most stable,as well as its yield *** observations demonstrated the increase in lint yield was due to the increase in boll weight,and the large bolls and high fiber quality were attributed to the optimal distribution of bolls within the canopies.

关键词： Bt cotton yield formation boll spatial distribution lint yield fiber quality

Applied methods for studying the relationship between climatic factors and cotton production

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Agricultural Sciences 2013年第11期4卷 37-54页

作者： Zakaria M. Sawan Cotton Research Institute Agricultural Research Center Ministry of Agriculture & Land Reclamation Giza Egypt

This study investigates the statistical relationship between climatic variables and aspects of cotton production (G. barbadense), and the effects of climatic factors prevailing prior to flowering or subsequent to boll setting on flower and boll production and retention in cotton. The effects of specific climatic factors during both pre-?and post-anthesis periods on boll production and retention are mostly unknown. However, by determining the relationship of climatic factors with flower and boll production and retention, the overall level of production can be possibly predicted. Thus, an understanding of these relationships may help physiologists determine control mechanisms of production in cotton plants. Also, the study covers the predicted effects of climatic factors during convenient intervals (in days) on cotton flower and boll production compared with daily observations. Further, cotton flower and boll production as affected by climatic factors and soil moisture status has been considered. Evaporation, sunshine duration, relative humidity, surface soil temperature at 1800 h, and maximum air temperature, are the important climatic factors that significantly affect flower and boll production. The least important variables were found to be surface soil temperature at 600 h and minimum temperature. The five-day interval was found to be more adequately and sensibly related to yield parameters. Evaporation, minimum humidity and sunshine duration were the most effective climatic factors during preceding and succeeding periods on boll production and retention. There was a negative correlation between flower number and boll production and either evaporation or sunshine duration, while that correlation with minimum relative humidity was positive. The soil moisture status showed low and insignificant correlation with flower and boll production. Higher minimum relative humidity, short period of sunshine duration, and low temperatures enhanced flower and boll formation.

关键词： Cotton Flower and boll Production boll Retention Evaporation Relative Humidity Soil Moisture Status Sunshine Duration Temperature