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胡萝卜新品种天红1号的选育 总被引:2,自引:0,他引:2
天红 1号胡萝卜是以雄性不育系HLBcms0 0 1号胡萝卜为母本 ,以HLBm0 0 1号胡萝卜为父本杂交而成的全红型一代杂种。植株生长势强 ,株高 5 1.78cm ,叶丛直立 ,深绿 ,有 8~ 11片叶 ;肉质根整齐 ,圆柱形 ,根尖圆形 ,根长 17.2 4cm ,根粗 3.12cm ,根质量 12 2 .8g,根表皮、韧皮部和髓部均为桔红色 ,可溶性固形物含量为 10 .17%,胡萝卜素含量为 113.0mg·kg-1,质脆 ,味甜 ,口感好 ,适于鲜食和加工 ;生长期 10 0~ 10 5d(天 ) ,平均每 6 6 7m2 产量34 38kg。目前已在天津、山西、河南等地示范推广。 相似文献
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高原夏季胡萝卜肉质根内源激素变化及其与先期抽薹的关系 总被引:4,自引:0,他引:4
以胡萝卜耐抽薹品种‘新秀三红’和易抽薹品种‘岐山透心红’的未抽薹和抽薹植株的肉质根为材料,研究了高原夏季胡萝卜肉质根内源激素变化及其与先期抽薹的关系。结果表明:苗期肉质根内源激素含量逐渐下降;叶片旺盛生长期GA3、GA4、IAA和IPA含量先升高后下降,ZR和DHZR含量持续下降后逐渐升高;肉质根迅速膨大期ZR和IAA含量逐渐升高,其它激素含量均渐下降。长日照条件下,易抽薹品种中未抽薹植株肉质根的内源GA3和ZR含量较低,GA4和IAA含量较高,与耐抽薹品种的差异均显著;易抽薹品种中先期抽薹植株肉质根的IAA和IPA含量较高,GA3和ABA含量较低,与其未抽薹植株肉质根的差异均显著。较低含量的GA3与较高含量的IAA促进胡萝卜的先期抽薹,较高的IAA/ZR、GA4/ZR比值可导致胡萝卜的先期抽薹。 相似文献
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以国内具有代表性的5个胡萝卜品种为试材, 研究其肉质根发育期(播种后60~100 d) 果胶的组成及变化规律, 为胡萝卜品质育种和综合利用果胶含量较高的品种提供参考依据。结果表明: 5个胡萝卜品种的水溶性果胶(WSP) 、草酸溶性果胶(OSP) 、总果胶( TP) 含量均随肉质根的发育呈上升趋势, 酸溶性果胶(ASP) 含量因品种不同呈上升趋势或无显著性变化。在肉质根发育期间, 5个品种的果胶均以ASP为主, 占TP的75.2%~91.3%; 其次是OSP, 占TP 5.8% ~17.9%; 再次是WSP, 占2.9%~8.9%。至收获时, 橘红一号的TP含量最高, 达到12.585 mg/g, 其它4个品种的TP含量没有显著性差异,5个品种在果胶组成与含量和硬度的关系方面均未表现出相关性。 相似文献
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以白色的野生胡萝卜‘松滋野生’(Ws)和橘色的栽培胡萝卜品种‘Amsterdam’(Af)为亲本构建的回交重组自交系(BIL)为试材,基于低倍重测序技术开发SNP标记,构建了由1 976个Bin标记组成,包含29 435个SNP标记的遗传图谱。图谱总距离834.28 c M,平均图距0.42 c M。通过对胡萝卜肉质根中类胡萝卜素含量相关QTL分析,在连锁群LG04和LG08中检测到调控α–胡萝卜素、β–胡萝卜素、ζ–胡萝卜素、叶黄素、玉米黄质和总类胡萝卜素含量的主效QTL(M-QTL)2、2、3、2、2和2个,表型贡献率为11.47%~19.18%;另检测到调控α–胡萝卜素、β–胡萝卜素、ζ–胡萝卜素、玉米黄质和总类胡萝卜素含量的上位性QTL(E-QTL)1、1、2、1和1个,表型贡献率为2.50%~3.66%。在M-QTL显著区间内共检索到36个有功能注释的预测基因,其中Dck018297为ζ–胡萝卜素脱氢酶2基因,与调控β–胡萝卜素合成和总类胡萝卜素含量有关;Dck008006为乙烯响应因子2.2的同源基因,与调控α–胡萝卜素、ζ–胡萝卜素合成有关;Dck029898为转录因子b HLH135的同源基因,与调控玉米黄质合成有关。 相似文献
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结合表型和SSR标记对29份中国胡萝卜地方资源、40份橘色栽培品种以及1份土耳其紫色品种进行遗传多样性和亲缘关系研究。田间农艺性状多样性分析表明,除叶长、根长、根粗外,春秋两季胡萝卜橘色栽培品种的多样性指数平均值低于地方资源。主成分分析结果表明,中国橘色地方资源和橘色栽培品种表型在秋季较为相似,但在春季差异较大。利用38对SSR引物对胡萝卜品种进行扩增,共扩增出133个多态性位点,其中中国地方资源与橘色栽培品种的平均多态性位点数分别为4.2和2.9个。中国地方资源的多态性信息含量值(0.74±0.06)明显高于橘色栽培品种(0.42±0.03)。聚类分析将供试胡萝卜材料分为2组,第I组包括所有橘色栽培品种和橘色地方资源B0241,第Ⅱ组包含其他地方资源和紫色品种L1。 相似文献
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A mechanistic model of carrot vegetative and root development was constructed. This model determined canopy photosynthesis over a day, assimilates were then partitioned into either roots or leaves via temperature dependent partitioning coefficients. Assimilates were lost via terms describing growth and maintenance respiration. The model was calibrated on data from four different carrot cultivars, originating from the UK (Autumn King), Syria (CarrotS), Poland (Dolanka) and Russia (Hibinskaja), grown in controlled environment glasshouse compartments at one of six temperatures (9–30 °C) repeated over three sowing dates. Calibration of the model showed that it could account for between 83 and 95% of the variance in carrot plant and root dry weights. The model was then validated using independent data from the same cultivars of carrots grown in the field at Reading. In this instance, the model accounted for 75 and 79% of the variance in plant and root weight, respectively. Two other independent data sets were used to validate the model, including carrot of a different cultivar (Panther) grown in phytotrons at temperatures between 9 and 21 °C, at two different locations and over a three sowing dates. In this instance, the model accounted for between 63 and 69% of the variance in root weight. The model also predicted that if ambient carbon dioxide levels increased from 348 to 551 μmol mol−1, root dry weight would increase by 12%, which is within the margin of error of the experimental value of 16% reported in the literature. The model can therefore be used to study the potential impacts of global climate change on carrot production, as well as to rapidly predict whether germplasm is suited to any particular environment. 相似文献
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Cenourete® is a minimally processed carrot root similar to the American product known as ‘baby-carrot’. This product is obtained through peeling and abrasion of cylindrical carrot root segments. The cultivar Esplanada is well suited for the production of Cenourete® due to its characteristics of long length and cylindrical root shape as well as uniform dark orange root colour. For Cenourete® production, the root should be less than 25 mm in diameter. However, it is well known that root size is influenced by planting density and harvest time. Therefore, the adjustment of the cultural practices would be necessary to increase root yield aimed for Cenourete® processing. The recovery of Cenourete® from ‘Esplanada’ was studied under two between-line spacings: 20 cm (5 transversal lines/m) and 12.5 cm (8 transversal lines/m). Roots were harvested at 80, 90, 100 and 110 days after sowing. Cenourete® yield ranged from 2.39 ± 0.37 to 10.75 ± 1.07 t/ha depending on the combination of harvesting date and between-line spacing. These values corresponded, respectively, to a percent Cenourete® yield recovery of 3.3 ± 0.7%–28.6 ± 2.8% in relation to the total root production. It was concluded that higher yield is obtained with 12.5 cm between-line spacing than with 20 cm between-line spacing and with earlier harvest (80–90 days) than with late harvest (100–110 days). 相似文献
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‘红芯105’是以雄性不育系MS003A 为母本,自交系K20-6-51-3-31-116 为父本配组而育
成的胡萝卜杂交一代新品种。肉质根长圆柱形,长20 ~ 22 cm,横径5.0 ~ 5.5 cm,中心柱细,根头较小。
红皮,红芯,红肉,肉质脆嫩,单根质量350 ~ 400 g,产量达84 500 kg · hm-2。无抽薹,抗黑斑病、白粉
病、软腐病等,适合黑龙江省春季栽培。 相似文献
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为明确早收栽培情况下,心香甘薯延后收获的薯块膨大增重动态,开展了早收栽培下,心香甘薯延后收获的分期掘薯观察试验。研究结果表明,心香甘薯不但结薯早、前期薯块膨大快,而且后期薯块膨大增重比例也相当高,心香在早收栽培下延后收获,也能取得较高的产量。 相似文献