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甘蔗细茎野生种核心种质构建 被引量:21
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作者 齐永文 樊丽娜 +7 位作者 罗青文 王勤南 陈勇生 黄忠兴 刘睿 刘少谋 邓海华 李奇伟 《作物学报》 CAS CSCD 北大核心 2013年第4期649-656,共8页
以来自我国10个省(市)、自治区的540份甘蔗细茎野生种无性系为材料,根据采集地信息及其在20对SSR引物上的分子标记数据和15个表型性状资料,开展核心种质构建研究。不同取样量(5%、10%、20%、30%、40%、50%、60%、70%、80%和90%)分析表明... 以来自我国10个省(市)、自治区的540份甘蔗细茎野生种无性系为材料,根据采集地信息及其在20对SSR引物上的分子标记数据和15个表型性状资料,开展核心种质构建研究。不同取样量(5%、10%、20%、30%、40%、50%、60%、70%、80%和90%)分析表明,10%的取样比例可获得70%以上的变异保留比例,是较好的核心种质取样规模;对5种采集地分组取样策略(等量法、简单比例法、平方根比例法、对数比例法和多样性比例法)和2种无分组取样策略(最大变异保留法和随机抽样法)比较表明,简单比例法获得的核心种质代表性最好,为最优取样策略。最后,在简单比例法取样筛选出的54份核心样品中,又通过定向选择补充了6份具有优异表型性状的材料,构建了含60份无性系的甘蔗细茎野生种核心种质,分子和表型检验都表明本研究所构建的核心种质具有较好的代表性和遗传多样性。 展开更多
关键词 甘蔗细茎野生种 核心种质 SSR 表型性状
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Agro-Morphological Variability in Eight Bambara Groundnut (Vigna subterranea (L.) Verdc.) Morphotypes from Zinder (Niger)
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作者 Oumarou Zango Rabiou Abdou +2 位作者 Saley Adamou Salamatou Agbo So Timothée Kouassi Bakasso Yacoubou 《Agricultural Sciences》 CAS 2023年第1期1-10,共10页
Bambara groundnut (Vigna subterranea (L.) Verdc.) has economic importance for the producers and the traders as cash crop since it generates substantial income for households in Niger. The objective of this study was t... Bambara groundnut (Vigna subterranea (L.) Verdc.) has economic importance for the producers and the traders as cash crop since it generates substantial income for households in Niger. The objective of this study was to assess eight (8) Bambara groundnut morphotype from Université André Salifou de Zinder in Niger Republic by their morphological and agronomic characters. The experiment was conducted in a randomized complete block design with three replications during the rainy season of 2020-2021. Data were collected on the Number of leaves, Plant height (cm), Growth habit (cm), Terminal leaflet length, Terminal leaflet width, Number of nodes/stem, Number of stems/plant, Number of pods/plant, Weight of 100 pods (g), Weight of 100 seeds (g), Length of seeds (mm), Width of seeds (mm), Weight of seeds/Plot (kg). There were significant differences for all characters, except Number of leaves, Terminal leaflet length, Terminal leaflet width, Length of seeds (mm) Weight of 100 pods (g), Weight of 100 seeds (g). The morphotypes UZ-VZ-04, UZ-VZ-03, UZ-VZ-06, UZ-VZ-02 and UZ-VZ-05 have demonstrated good performance for grain weight per plot and can be useful for a breeding program. 展开更多
关键词 Vigna subterranea ACCESSIONS agro-morphological traits Weight of 100 Seeds
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