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湖北长阳山区萝卜根肿病抗性鉴定筛选 被引量:9
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作者 甘彩霞 崔磊 +6 位作者 袁伟玲 邓晓辉 於校青 矫振彪 焦忠久 朱凤娟 邱正明 《中国蔬菜》 北大核心 2017年第12期35-41,共7页
长阳山区是湖北高山地区主要的根肿病病区。以100份萝卜种质资源为材料,分别在长阳胡家坪和火烧坪进行根肿病田间成株期抗病性鉴定和苗期人工接种抗病性鉴定。综合成株期和苗期鉴定结果,筛选出抗根肿病种质资源13份,其中白皮萝卜8份(富... 长阳山区是湖北高山地区主要的根肿病病区。以100份萝卜种质资源为材料,分别在长阳胡家坪和火烧坪进行根肿病田间成株期抗病性鉴定和苗期人工接种抗病性鉴定。综合成株期和苗期鉴定结果,筛选出抗根肿病种质资源13份,其中白皮萝卜8份(富源1号、华绿8号萝卜、重庆冰糖圆白、春不老、玉堂春、汉白玉、春玉和短叶13号),红皮萝卜3份(红罐、南京红和大红袍),绿皮萝卜2份(灌糖青和德日2号)。利用长阳火烧坪根肿病病圃田间鉴定了155个萝卜杂交组合,筛选出抗根肿病优良组合3个。 展开更多
关键词 萝卜 根肿病 成株期 苗期 抗病性
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抗根肿病萝卜新品种楚玉1号的选育 被引量:2
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作者 崔磊 甘彩霞 +4 位作者 於校青 严承欢 袁伟玲 邓晓辉 邱正明 《中国蔬菜》 北大核心 2020年第8期86-88,共3页
楚玉1号是以雄性不育系B49-3-1-1-1A为母本,以自交系B20-2-1-1-2-1为父本配制而成的抗根肿病萝卜一代杂种。早熟,生育期60 d(天)左右,株型半直立,叶丛小,花叶,叶色深绿;肉质根长圆柱形,根长25~28 cm,根粗7 cm左右,单根质量1.5~2.0 kg,... 楚玉1号是以雄性不育系B49-3-1-1-1A为母本,以自交系B20-2-1-1-2-1为父本配制而成的抗根肿病萝卜一代杂种。早熟,生育期60 d(天)左右,株型半直立,叶丛小,花叶,叶色深绿;肉质根长圆柱形,根长25~28 cm,根粗7 cm左右,单根质量1.5~2.0 kg,表皮白色、光滑,皮痕小;抗根肿病,耐未熟抽薹,不易裂根和糠心,每667 m2产量4500~5500 kg,适合长江流域高山地区越夏和平原地区冬春季栽培。 展开更多
关键词 萝卜 楚玉1号 一代杂种 抗根肿病
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基于表型性状的湖北省萝卜资源的遗传多样性分析 被引量:3
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作者 邓晓辉 崔磊 +3 位作者 甘彩霞 於校青 董俊明 焦春海 《湖北农业科学》 2018年第24期104-107,共4页
以从湖北省搜集的59份萝卜(Rarhanus sativus L.)种质资源为试材,连续3年对19个表型性状进行了鉴定,采用相关系数和聚类分析等多元统计方法,研究了萝卜资源的遗传多样性,以期为有效利用该批萝卜种质资源提供参考依据。结果表明,肉质根... 以从湖北省搜集的59份萝卜(Rarhanus sativus L.)种质资源为试材,连续3年对19个表型性状进行了鉴定,采用相关系数和聚类分析等多元统计方法,研究了萝卜资源的遗传多样性,以期为有效利用该批萝卜种质资源提供参考依据。结果表明,肉质根地上部皮色、地下部皮色、根形、单根重和小裂片对数存在丰富变异;各性状之间的相关系数中达到极显著水平的有16对性状,表明大部分表型性状间具有内在联系;聚类分析结果显示将参试材料分为3大组群。 展开更多
关键词 萝卜(Rarhanus SATIVUS L.) 表型性状 多元统计分析 多样性
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南漳县农作物种质资源普查现状与分析 被引量:2
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作者 崔磊 邓晓辉 +2 位作者 甘彩霞 於校青 焦春海 《湖北农业科学》 2018年第24期32-34,共3页
通过对湖北省南漳县农作物资源的考察,对县域内农作物种质资源进行了普查和数据分析。通过查阅文献和实地调查相结合的方法,完成了农作物种质资源普查表的编制,分析了1956—2014年大宗农作物种植面积、产量和大面积种植品种的变化情况,... 通过对湖北省南漳县农作物资源的考察,对县域内农作物种质资源进行了普查和数据分析。通过查阅文献和实地调查相结合的方法,完成了农作物种质资源普查表的编制,分析了1956—2014年大宗农作物种植面积、产量和大面积种植品种的变化情况,并提出了农作物种质资源保护面临的问题及对策建议。 展开更多
关键词 农作物 南漳县 种质资源
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红心萝卜沼肥试验效果的分析 被引量:1
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作者 张再起 张智 +4 位作者 杨丽娜 甘彩霞 崔磊 邓晓辉 李双来 《湖北农业科学》 2021年第S02期108-110,共3页
设计了5个处理,研究了施用沼肥对红心萝卜生长的影响。结果表明,沼渣(R)处理产量为59096kg/hm^(2),较沼渣+沼液(RS)处理的产量高4002 kg/hm^(2),增幅7.3%,较猪粪处理(M)产量高6670 kg/hm^(2),增幅12.7%。RS处理相对M处理增幅5%。R和RS... 设计了5个处理,研究了施用沼肥对红心萝卜生长的影响。结果表明,沼渣(R)处理产量为59096kg/hm^(2),较沼渣+沼液(RS)处理的产量高4002 kg/hm^(2),增幅7.3%,较猪粪处理(M)产量高6670 kg/hm^(2),增幅12.7%。RS处理相对M处理增幅5%。R和RS处理产量明显高于空白对照(CK)和化肥(CF)处理。红心萝卜出苗后通过3次不同时间段分别对R、RS和M 3个处理淋施不同浓度的沼液,与CK和CF 2个处理相比,R、RS和M 3个处理的萝卜长势、适口期及维生素C含量均优于CK和CF 2个处理。 展开更多
关键词 沼渣 沼液 产量 抗性 品质 土壤有机质
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松滋市农作物种质资源调查分析
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作者 邓晓辉 伍业霞 +4 位作者 潘奇峰 崔磊 甘彩霞 於校青 焦春海 《湖北农业科学》 2019年第S02期266-268,共3页
通过对湖北省松滋市农作物种质资源的系统调查,结合前面2次普查资料,分析了1956—2014年大宗农作物种植面积、产量和大面积种植品种的变化情况,提出了农作物种质资源保护面临的问题及对策建议,以期为松滋市农作物种质资源的保护、研究... 通过对湖北省松滋市农作物种质资源的系统调查,结合前面2次普查资料,分析了1956—2014年大宗农作物种植面积、产量和大面积种植品种的变化情况,提出了农作物种质资源保护面临的问题及对策建议,以期为松滋市农作物种质资源的保护、研究和利用提供参考。 展开更多
关键词 农作物 种质资源 松滋市
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角额壁蜂在萝卜授粉上的应用 被引量:3
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作者 於校青 甘彩霞 +1 位作者 邓晓辉 崔磊 《湖北农业科学》 2019年第S02期314-315,共2页
主要介绍了角额壁蜂[Osmia cornifrans(Radoszkowski)]在辅助萝卜授粉中的应用情况,并对该技术方法进行总结,以期为该技术的推广提供参考。
关键词 角额壁蜂[Osmia cornifrans(Radoszkowski)] 萝卜 授粉
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Effects of nutrition spatial heterogeneity on root traits and carbon usage by roots of Cercis chinensis seedlings in split root rooms
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作者 gan cai-xia WU Chu 《Forestry Studies in China》 CAS 2008年第4期220-228,共9页
In natural ecosystems, nutrition available for plants shows great spatial heterogeneity. Much is known about plant root responses to the spatial heterogeneity of nutrition, but little is known about carbon usage in ro... In natural ecosystems, nutrition available for plants shows great spatial heterogeneity. Much is known about plant root responses to the spatial heterogeneity of nutrition, but little is known about carbon usage in roots in nutrition-deficient patches and its effect on root longevity. In this study, split-room boxes were used for culture of Cercis chinensis seedlings, and the small rooms were supplied with different nutrition levels. The number of the first-order roots in the rooms with nutrition supply was significantly higher than that in the rooms with deficient nutrition. Specific root length (SRL) of the first-order roots in the rooms with deficient nutrition reached its peak at day 64 after nutrition treatment. There was no significant SRL differences between the two order roots during the experiment. Biomass of the first-order roots in the rooms without nutrition supply was significantly less than that of the first-order roots in the rooms with nutrition supply from day 64 to 96. The total biomass of the lateral roots in the rooms without nutrition supply decreased from day 64 to 96. The activities of the enzymes in roots in the rooms without nutrition supply increased and the activities of alkaline invertases in roots in the two sides of split box did not change significantly. The activities of the enzymes in roots in the rooms without nutrition supply increased gradually. These results suggest that nutrition spatial heterogeneity induced the changes in root traits and plants actively controlled carbon usage in roots in nutrition-deficient patches by regulating the activities of invertases and sucrose synthases, resulting in the reduction in carbon usage in the roots in nutrition-deficient patches. 展开更多
关键词 NUTRITION spatial heterogeneity root trait carbon usage Cercis chinensis
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Carbon unloading in roots in relation to root senescence in Cercis chinensis seedlings under drought stress
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作者 gan cai-xia WU Chu 《Forestry Studies in China》 CAS 2009年第2期77-84,共8页
When Cercis chinensis seedlings suffered from drought treatment, net photosynthetic rates had been significantly reduced at the end of the drought treatment. Compared with the control, the activities of acid invertase... When Cercis chinensis seedlings suffered from drought treatment, net photosynthetic rates had been significantly reduced at the end of the drought treatment. Compared with the control, the activities of acid invertases in roots had increased 5 and 11 days after drought treatment. Seventeen days after drought treatment, the activities of acid invertases in roots were significantly decreased, while activities of alkaline invertases in roots had also been significantly reduced. As the moisture in culture media decreased, so the activities of sucrose synthases in leaves decreased slightly. In roots, their activities had significantly increased 5 and 11 days after drought treatment. The contents of fructose in roots reduced as the moisture in culture media decreased and 11 and 17 days after drought treatment the reduction was significant. The content of glucose in roots clearly did not change as drought stress occurred further, but was still less than that in the control seedlings. Similarly, the content of sucrose reduced as the moisture in culture media decreased. At the beginning of the drought stress, the content of sucrose was significantly higher than that in the control and afterwards there were no differences between drought-treated seedlings and the control. The gradient of the sucrose content between leaves and roots was 0.0982 mg.g^-1 FW 17 days after drought treatment, while the gradient of the seedlings under normal condition was 1.3832 mg.g^-1 FW. The sucrose concentration gradient reduced by 92.9%. The reduction in the sucrose content gradient under drought stress decreased the sucrose partitioning in roots. Therefore, our results support the hypothesis of‘shared control'. 展开更多
关键词 drought stress carbon unloading root senescence Cercis chinensis
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