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灰色局势决策在棉花品种评估中的应用
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作者 苏天增 《中国棉花》 北大核心 2004年第10期19-20,共2页
关键词 灰色局势决策 棉花 品种评估 可行性
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作物区试中的品种合理评估问题 被引量:5
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作者 俞世蓉 徐勇 《南京农业大学学报》 CAS CSCD 北大核心 1992年第4期12-18,共7页
以江苏省小麦品种区试资料为例,探讨对品种的合理评估问题。(1)优度估计。对品种×环境资料算出的品种总优势度,定义为通过全部试点中平均的品种响应值与最大响应值间的距离均方。其中的对照仅视为一个在某一试点中有可能是最大响... 以江苏省小麦品种区试资料为例,探讨对品种的合理评估问题。(1)优度估计。对品种×环境资料算出的品种总优势度,定义为通过全部试点中平均的品种响应值与最大响应值间的距离均方。其中的对照仅视为一个在某一试点中有可能是最大响应值的一个品种,而不须作为对参试品种评价的标准。这可容许育种者选设地区适应的品种作为对照时以较大的灵活性。(2)参数分组佔计。试点按产量水平及其变异度分为几个组,分组评定各品种的稳定性。这样的分析,可以给予各参试品种以更合理的评价。 展开更多
关键词 品种 区种域试验 品种评估 作物
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贵州贵阳地区引种大花月季品种的评估鉴定 被引量:3
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作者 曾力 孟永禄 梁玲玲 《江苏农业科学》 2019年第23期167-167,168,169,共3页
针对贵州贵阳地区引进的6种露地栽培的大花月季,采用灰色关联法对其性状进行评估鉴定。结果表明,法国千叶的综合表现最好,其次是丰花、爱,表现最差的则为金凤凰。6种大花月季的分析结果与实际观察的表象相一致,可为贵阳地区今后在引种... 针对贵州贵阳地区引进的6种露地栽培的大花月季,采用灰色关联法对其性状进行评估鉴定。结果表明,法国千叶的综合表现最好,其次是丰花、爱,表现最差的则为金凤凰。6种大花月季的分析结果与实际观察的表象相一致,可为贵阳地区今后在引种大花月季品种资源方面提供借鉴。 展开更多
关键词 大花月季 灰色关联法 品种评估 无量纲化 贵阳地区
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用灰色系统理论对烤烟品种综合评估 被引量:5
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作者 刘艳霞 丁永乐 +2 位作者 陈贵岭 王书伟 任慧源 《河南职业技术师范学院学报》 2001年第3期24-26,共3页
采用灰色系统理论中的灰色关联度分析法 ,对河南省豫西旱地烤烟品种比较试验的参试品种 (系 )进行了综合评估。分析结果表明 ,在产量、抗病性、品质三者兼顾的情况下 ,综合评估结果与品种的实际表现相吻合。说明该方法可以应用于烤烟品... 采用灰色系统理论中的灰色关联度分析法 ,对河南省豫西旱地烤烟品种比较试验的参试品种 (系 )进行了综合评估。分析结果表明 ,在产量、抗病性、品质三者兼顾的情况下 ,综合评估结果与品种的实际表现相吻合。说明该方法可以应用于烤烟品种的综合评价。 展开更多
关键词 烤烟 关联度 灰色系统理论 综合评判 品种评估 产量 抗病性
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DTOPSIS法在大豆品种综合评估中的应用 被引量:5
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作者 李振江 《安徽农学通报》 2011年第19期37-39,共3页
应用DTOPSIS法对2010年国家黄淮海夏大豆品种区域试验(南片A组)约16个参试品种的11个性状进行了综合评估,评估结果与各品种的实际表现十分一致,比单纯用产量对参试品种进行评估更具有科学性。该方法具有计算简便、结论明确等优点,可作... 应用DTOPSIS法对2010年国家黄淮海夏大豆品种区域试验(南片A组)约16个参试品种的11个性状进行了综合评估,评估结果与各品种的实际表现十分一致,比单纯用产量对参试品种进行评估更具有科学性。该方法具有计算简便、结论明确等优点,可作为夏大豆品种区域试验中对参试品种进行综合评估的一种有效方法。 展开更多
关键词 DTOPSIS法 大豆 品种综合评估
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Evaluation and Selection of Date Palm Varieties from Seedling Progeny in Saudi Arabia
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作者 Ibrahim Abdoulhadi AI-Abdoulhadi 《Journal of Agricultural Science and Technology(A)》 2015年第1期1-7,共7页
A survey was conducted in 2011 in the major date growing regions of Saudi Arabia to identify and evaluate date palms with fruit characteristics preferred by the producers and consumers. The regions in the Kingdom surv... A survey was conducted in 2011 in the major date growing regions of Saudi Arabia to identify and evaluate date palms with fruit characteristics preferred by the producers and consumers. The regions in the Kingdom surveyed for this purpose were Al-Zulfi, Al-Hassa, Najran, Al-Madinah Al-Munawarah and AI-Qassim. Seventy palms from seedlings were initially identified for the study based on the following fruit characteristics, i.e., fruit length, breadth, weight, color, taste, texture, sugar content, external appearance and also the market value. Subsequently, 12 palms (Al-Afiah, Duhiba, Adbah, Aliah, Shamshula, Masifat Al-Asedy, Suwaid, Batlyah, AI-Nassar, Hussan, Sukariyat Al-Zulfi and Al-Hamat) mainly from the Zulfi and Riyadh regions were found to meet the required standards with potential for commercial date farming. Among these, fruits of Adbah had the highest total sugars of 72.9% followed by Duhiba with a total sugar content of 71.9%. Fruit length was maximum (49.1 mm) in the variety Allah, while the fruits of the variety Hussan recorded the maximum weight of 19.5 g. Furthermore, it is pertinent to mention that fruit size of the 12 selected cultivars was generally large and comparable to Majdool, a well-known date palm cultivar of North Africa. The fruits of the selected cultivars were also tasty and can be stored separately. 展开更多
关键词 Fruit characteristics Phoenix dactylifera seedling date palm Saudi Arabia.
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Cultivar Selection and Test Site Evaluation of Cotton Regional Trials in Jiangsu Province Based on GGE Biplot 被引量:2
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作者 Jian LI Naiyin XU 《Agricultural Science & Technology》 CAS 2014年第8期1277-1280,1284,共5页
This study was to evaluate the high yielding and stability of candidate cultivars, depict the adaptive planting region, analyze trial location discrim-ination ability and representativeness, as wel as identify the ide... This study was to evaluate the high yielding and stability of candidate cultivars, depict the adaptive planting region, analyze trial location discrim-ination ability and representativeness, as wel as identify the ideal cultivar and trial location, with the aim to provide theory background for cultivar selection and rea-sonable scheme of test location in Jiangsu Province. [Method] The GGE biplot method was used to analyze the lint cotton yield of 12 experimental genotypes in the 6 test locations (three replicates in each) of the cotton regional trial in Jiangsu Province in 2013. [Result] The effects of genotype (G), environment (E), and geno-type by environment interaction (G&#215;E) on lint cotton yield were al highly significant (P〈0.01), which made it necessary to further explore the specific pattern of geno-type by environment interaction. Jinmian118 (G4) and SF3303 (G5) were the best ideal genotypes screened by the "ideal cultivar" and "ideal location" view of GGE biplot, and the ordination of test sites based on the ideal index were in the order of Dafeng (DF), Yanliang (YL), Liuhe (LH), Dongtai (DT), Yancheng (YC), and Nantong (NT), among which NT was relatively weak in representing of the whole target cot-ton planting region in Jiangsu Province. The "similarity among locations" view of GGE biplot clustered al trial locations into one group, showing that the test sites in the cotton planting region in Jiangsu Province were in the same mega-environment. The "which-won-where" view of GGE biplot indicated that cotton cultivar Jinmian118 (G4) was the most appropriate cultivar in the homogeneous cotton planting region in Jiangsu Province. [Conclusion] Among the candidate cultivars, Jinmian118 and SF3303 were identified as the most ideal cultivars in this set of conventional cotton regional trial in Jiangsu Province; the test site of Dafeng ranked the first out of al locations in terms of discrimination and representativeness, and al test locations were clustered into the same mega-environmet, which indicated the high efficiency of cultivar selection in the cotton regional trial in Jiangsu Province. 展开更多
关键词 Cotton (Gossypium hirsutum L.) GGE biplot Discrimination ability REPRESENTATIVENESS Crop regional trial
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Assessment of Damage, Infestation Level and Susceptibility of Mango Cultivars to the Fruit Flies Infestation in Shendi Area, Sudan
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作者 Amani M. Khair Faiza M. A. Magid Eltigani E. Ali 《Journal of Life Sciences》 2015年第11期521-525,共5页
Fruit flies are serious pests of Mango in Sudan; they cause substantial damage to Mango production, both qualitatively and quantitatively. This study is an effort to establish information about the pest and, to test t... Fruit flies are serious pests of Mango in Sudan; they cause substantial damage to Mango production, both qualitatively and quantitatively. This study is an effort to establish information about the pest and, to test the susceptibility of some Mango cultivars (Baladi, Kitchener, Shendi, Alphons, Abu Samaka and Bit abusamaka) to the pest infestation. A survey was carded out at Shendi area, River Nile State, during the period of May 2007 to July 2008, using a home made trap resemble lvnfield traps with attractants (Methyl eugenol, Trimedlure, cue lure and Nu lure) to identify the fruit flies species found in the area and to study the seasonal abundance of the pest species and to determine the infestation percentage of different Mango cultivars. Results indicated that the fruit fly Bactrocera invadens is present all year-round in the study area, with population peak July to September. The study showed that Guava ( Psedium guajava ) represents the best alternative host for the pest. Abu samaka and Bit Abusa amaka mango cultivars were the most susceptible, with 100% infestation, followed by Shendi 70%, Kitchener 54%, Alphons and Baladi (30%, 28%, respectively) were the least susceptible. Also results revealed that females of both species Ceratitis cosyra and Bactrocera invadens out numbered males 4-5 times. 展开更多
关键词 Fruit flies INFESTATION mango cultivar.
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