对新疆7个句句梨品种的叶片、枝条、花器官、果实及种子形态学特征进行观测,采用主成分分析及及聚类分析对指标进行相关分析。摸清新疆的句句梨品种植物形态学特征差异,为研究品种的保存和利用提供数据基础。结果表明:7个句句梨品种的...对新疆7个句句梨品种的叶片、枝条、花器官、果实及种子形态学特征进行观测,采用主成分分析及及聚类分析对指标进行相关分析。摸清新疆的句句梨品种植物形态学特征差异,为研究品种的保存和利用提供数据基础。结果表明:7个句句梨品种的叶片性状中叶尖形状变异程度最大,幼叶颜色、叶缘、裂刻、刺芒、叶背茸毛及托叶不存在变异。枝条性状中一年生枝颜色的变异系数(Coefficient of variation,CV)最大,为68.00%;针刺无变异。花器官性状中柱头位置CV最大,达87.00%;花瓣数、花柱基部茸毛不存在变异。果实性状中果实形状、果实底色、梗洼深度及萼洼状态CV均超过50.00%,变异程度较高。种子性状中种子形状CV最大,为50.00%。供试梨品种形态学差异主要由以下因子构成:叶片形状因子、果实外观因子、种子质量因子、果实形状因子、种子形状因子、雄蕊因子、雌蕊因子。当距离为10时,‘霍城句句梨’与‘伊犁红句句梨’聚为一组,相似度最大。‘黄句句梨’与‘阿克苏句句梨’聚为一组;‘轮台句句梨’,‘句句梨’及‘褐色句句梨’聚为一组。聚类显示,三个组的品种分别来自伊犁州、阿克苏地区、巴州及库车,地理划分明显。综上所述,7个句句梨品种果实特征间的差异最大,根据形态特征聚类结果可以被划分为3个地理居群。展开更多
【目的】研究1/4根域施用不同水平有机肥对西洋梨幼树生长量和光合特性的影响。【方法】用美国CID公司生产的Photosynthesis system CI-340型光合测定系统采用闭合式气路测定净光合速率;用日本MINOLTA公司生产的SPAD-502型叶绿素测定仪...【目的】研究1/4根域施用不同水平有机肥对西洋梨幼树生长量和光合特性的影响。【方法】用美国CID公司生产的Photosynthesis system CI-340型光合测定系统采用闭合式气路测定净光合速率;用日本MINOLTA公司生产的SPAD-502型叶绿素测定仪测定相对叶绿素含量SPAD值;10月下旬统计每株新梢的总数量、总叶片数及总长度;用叶面积仪测量叶面积,计算叶比重。【结果】20%有机肥处理新梢总叶面积、新梢生长量和净光合速率(Pn)均显著大于10%、30%处理和CK,而10%、30%处理和CK之间的差异不显著;新梢比叶重20%、30%的处理显著高于10%处理和CK,而两者之间差异不显著,10%处理的比叶重与CK差异不显著;3个处理的叶绿素含量略高于CK,但差异不显著,【结论】壤土局部施用适量有机肥可以提高西洋梨树体生长量和净光合速率(Pn),为西洋梨的高效栽培、果园土壤局部改良、集中营养供应等提供理论依据。展开更多
The flowering biology and fruit development characteristics of a Xinjiang apricot （Armeniaca vulgaris Lam） cultivar Kezilang were studied by measuring its flowering phenology, floral organ development, stigma recept...The flowering biology and fruit development characteristics of a Xinjiang apricot （Armeniaca vulgaris Lam） cultivar Kezilang were studied by measuring its flowering phenology, floral organ development, stigma receptivity, pollen quantity, pollen viability, fruit diameter, fruit fresh weight, fruit dry weight and fruit contents, with an attempt to provide a theoretical basis for the cultivation and promotion of Kezilang. The results showed that Kezilang can be popularized as an early-maturing apricot cultivar, as it had high fruit setting rate, large fruit weight, excellent taste, high sugar content and lower titratable acid content in fruit. The dynamic curves of Kezilang fruit diameters in three directions, fruit fresh weight and fruit dry weight were all S-shaped, and the rapid growth stage of dry weight was later than that of other terms. Fruit swelling was due to higher water content of flesh tissue in early stage of the rapid growth periods of fruit. Most sugar in flesh was accumulated at the second rapid growth period of fruit.展开更多
[Objective] The present study was conducted to evaluate the cold resis-tance of four cherry cultivars under different chil ing stresses. [Method] Four cultivars of Cerasus, Early-mahapphala, Red light, Lapins and Kash...[Objective] The present study was conducted to evaluate the cold resis-tance of four cherry cultivars under different chil ing stresses. [Method] Four cultivars of Cerasus, Early-mahapphala, Red light, Lapins and Kashgar Kukan were selected as the experimental materials, and the changes of the relative electric conductivity （REC）, proline （PRO） content, malondialdehyde （MDA） content, superoxide dismu-tase （SOD） activity and peroxidase （POD） activity of dormant branches of the four cherry cultivars under low temperature stress were investigated. [Result] The REC of the four cherry cultivars was Kashgar kukan 〉 Red light 〉 Early-mahapphala 〉Lapins, while the MDA content was Kashgar kukan 〉 Early-mahapphala 〉 Red light 〉Lapins, both showed a rising trend in the four cultivars with the aggravating of the low temperature stress. The PRO content, POD and SOD activities of al cultivars were precisely contrary to their REC and MDA content, as al of them exhibited a sequence as Lapins 〉 Red light 〉 Early-mahapphala 〉 Kashgar kukan in al culti-vars, and got a trend of first rising and then declining. [Conclusion] Therefore, our final evaluation of cold resistance of the four cherry cultivars was Lapins 〉 Red light 〉 Early-mahapphala 〉 Kashgar kukan.展开更多
文摘对新疆7个句句梨品种的叶片、枝条、花器官、果实及种子形态学特征进行观测,采用主成分分析及及聚类分析对指标进行相关分析。摸清新疆的句句梨品种植物形态学特征差异,为研究品种的保存和利用提供数据基础。结果表明:7个句句梨品种的叶片性状中叶尖形状变异程度最大,幼叶颜色、叶缘、裂刻、刺芒、叶背茸毛及托叶不存在变异。枝条性状中一年生枝颜色的变异系数(Coefficient of variation,CV)最大,为68.00%;针刺无变异。花器官性状中柱头位置CV最大,达87.00%;花瓣数、花柱基部茸毛不存在变异。果实性状中果实形状、果实底色、梗洼深度及萼洼状态CV均超过50.00%,变异程度较高。种子性状中种子形状CV最大,为50.00%。供试梨品种形态学差异主要由以下因子构成:叶片形状因子、果实外观因子、种子质量因子、果实形状因子、种子形状因子、雄蕊因子、雌蕊因子。当距离为10时,‘霍城句句梨’与‘伊犁红句句梨’聚为一组,相似度最大。‘黄句句梨’与‘阿克苏句句梨’聚为一组;‘轮台句句梨’,‘句句梨’及‘褐色句句梨’聚为一组。聚类显示,三个组的品种分别来自伊犁州、阿克苏地区、巴州及库车,地理划分明显。综上所述,7个句句梨品种果实特征间的差异最大,根据形态特征聚类结果可以被划分为3个地理居群。
文摘【目的】研究1/4根域施用不同水平有机肥对西洋梨幼树生长量和光合特性的影响。【方法】用美国CID公司生产的Photosynthesis system CI-340型光合测定系统采用闭合式气路测定净光合速率;用日本MINOLTA公司生产的SPAD-502型叶绿素测定仪测定相对叶绿素含量SPAD值;10月下旬统计每株新梢的总数量、总叶片数及总长度;用叶面积仪测量叶面积,计算叶比重。【结果】20%有机肥处理新梢总叶面积、新梢生长量和净光合速率(Pn)均显著大于10%、30%处理和CK,而10%、30%处理和CK之间的差异不显著;新梢比叶重20%、30%的处理显著高于10%处理和CK,而两者之间差异不显著,10%处理的比叶重与CK差异不显著;3个处理的叶绿素含量略高于CK,但差异不显著,【结论】壤土局部施用适量有机肥可以提高西洋梨树体生长量和净光合速率(Pn),为西洋梨的高效栽培、果园土壤局部改良、集中营养供应等提供理论依据。
文摘The flowering biology and fruit development characteristics of a Xinjiang apricot （Armeniaca vulgaris Lam） cultivar Kezilang were studied by measuring its flowering phenology, floral organ development, stigma receptivity, pollen quantity, pollen viability, fruit diameter, fruit fresh weight, fruit dry weight and fruit contents, with an attempt to provide a theoretical basis for the cultivation and promotion of Kezilang. The results showed that Kezilang can be popularized as an early-maturing apricot cultivar, as it had high fruit setting rate, large fruit weight, excellent taste, high sugar content and lower titratable acid content in fruit. The dynamic curves of Kezilang fruit diameters in three directions, fruit fresh weight and fruit dry weight were all S-shaped, and the rapid growth stage of dry weight was later than that of other terms. Fruit swelling was due to higher water content of flesh tissue in early stage of the rapid growth periods of fruit. Most sugar in flesh was accumulated at the second rapid growth period of fruit.
基金Supported by the Science and Technology Supporting Project in Xinjiang Uygur Autonomous Region(201291123)~~
文摘[Objective] The present study was conducted to evaluate the cold resis-tance of four cherry cultivars under different chil ing stresses. [Method] Four cultivars of Cerasus, Early-mahapphala, Red light, Lapins and Kashgar Kukan were selected as the experimental materials, and the changes of the relative electric conductivity （REC）, proline （PRO） content, malondialdehyde （MDA） content, superoxide dismu-tase （SOD） activity and peroxidase （POD） activity of dormant branches of the four cherry cultivars under low temperature stress were investigated. [Result] The REC of the four cherry cultivars was Kashgar kukan 〉 Red light 〉 Early-mahapphala 〉Lapins, while the MDA content was Kashgar kukan 〉 Early-mahapphala 〉 Red light 〉Lapins, both showed a rising trend in the four cultivars with the aggravating of the low temperature stress. The PRO content, POD and SOD activities of al cultivars were precisely contrary to their REC and MDA content, as al of them exhibited a sequence as Lapins 〉 Red light 〉 Early-mahapphala 〉 Kashgar kukan in al culti-vars, and got a trend of first rising and then declining. [Conclusion] Therefore, our final evaluation of cold resistance of the four cherry cultivars was Lapins 〉 Red light 〉 Early-mahapphala 〉 Kashgar kukan.
