推荐回答(1个)
芜菁的主要病害有病毒病[TuMV(芜菁花叶病毒)等]、黑腐病[Xanthomonas campestris pv. campestris(pammel)Dowson]、霜霉病[Peronospora psitica(Pers.)Fr.]等。据《中国蔬菜品种志》(上册,2001)及各地方品种志的有关记载,抗病毒病的芜菁种质有:内蒙古自治区的河套蔓菁、紫皮蔓菁,山西省的天镇小缨紫蔓菁、小缨花叶紫蔓菁等;抗黑腐病的种质有:宁夏自治区的盐池大紫皮蔓菁;抗霜霉病的种质有:宁夏自治区银川市的内苎蔓菁,河北省的衡水蔓菁、金黄蔓菁等;综合抗性较好的种质有:山东省的乐陵蔓菁等。此外,陕西省的洛南红蔓菁、商县白蔓菁、商洛黄蔓菁,宁夏自治区的石嘴山蔓菁,新疆自治区和田县的白皮卡马古等种质抗病性也不错。
(一)抗病毒病种质资源
1.河套蔓菁
内蒙古自治区地方品种,生长期90d,耐热(苗期)、耐寒、耐旱,较抗病毒病。叶簇半直立。叶片大头羽裂、绿色,叶面有茸毛,叶长22~25cm、叶宽9~10cm,叶柄深绿色。肉质根圆球形,上表皮白绿或紫红色、下表皮白色,肉色白,纵径8~10cm(其中7~8cm露在地面)、横径6~8cm,单根重350g左右。肉质根组织致密、口感脆嫩、水分较多、味甜,品质好。适宜腌制及饲用。
2.内蒙古紫皮蔓菁
内蒙古自治区地方品种。生长期90d,耐寒、耐旱,较抗病毒病。叶簇半直立。叶片大头羽裂、深绿色,叶面无茸毛,叶长20~22cm、叶宽8~9cm,叶柄浅绿色。肉质根圆球形,上表皮紫红、下表皮浅紫色,肉色白,纵径6~7cm(其中4~5cm露在地面)、横径7~8cm,单根重220g左右。肉质根组织疏松、口感脆嫩、水分较少、微甜,品质好。适宜腌制及饲用。
3.天镇小缨紫蔓菁
山西省天镇县地方品种。生长期70d,较耐寒,较抗病毒病。叶簇半直立,株高61cm,开展度97cm。叶片大头羽裂、深绿色,裂片2~3对,叶长52cm、叶宽22cm,叶柄白绿色、长20cm。肉质根近圆球形,上表皮深紫色、下表皮紫红色,肉色白,纵径10cm(其中2.5cm露在地面)、横径10cm,单根重500g左右。肉质根组织致密、口感脆嫩,品质较好。适宜腌制及饲用。
3.天镇小缨紫蔓菁
山西省天镇县地方品种。生长期70d,较耐寒,较抗病毒病。叶簇半直立,株高61cm,开展度97cm。叶片大头羽裂、深绿色,裂片2~3对,叶长52cm、叶宽22cm,叶柄白绿色、长20cm。肉质根近圆球形,上表皮深紫色、下表皮紫红色,肉色白,纵径10cm(其中2.5cm露在地面)、横径10cm,单根重500g左右。肉质根组织致密、口感脆嫩,品质较好。
(二)抗黑腐病种质资源
盐池大紫皮蔓菁
宁夏回族自治区盐池县地方品种。生长期80~90d,较耐热(苗期)、耐寒、耐旱涝,抗黑腐病。叶簇半直立。叶片大头羽裂,叶面茸毛少,叶长32cm、叶宽14cm,叶柄淡绿色。肉质根短圆锥形,上表皮深紫色、下表皮紫色,肉色黄白,纵径6.7cm、横径7.2cm,单根重230~250g。肉质根不糠心,味稍辣,适宜腌渍。
(三)抗霜霉病种质资源
衡水蔓菁(紫蔓菁)
河北省衡水地区地方品种。生长期70~75d,耐寒、耐旱,抗霜霉病性强。叶簇直立。叶片大头羽裂、绿色,裂片3~4对,叶面茸毛少,叶长47cm、叶宽16cm,叶柄浅绿色。肉质根长圆锥形,上表皮紫红色、下表皮浅紫色,肉色浅黄,纵径17cm、横径8cm,单根重500g左右。肉质根组织致密、口感艮硬、水分中等、味甜,品质较好。适宜熟食、干制及饲用。
(四)综合抗性较好种质资源
乐陵蔓菁
山东省乐陵市地方品种。生长期90d以上,适应性及抗病性均较强。叶簇直立。叶片大头羽裂、深绿色,裂片少而小,叶面茸毛中量,叶长52cm、叶宽14cm,叶柄绿色。肉质根卵圆球形,上表皮暗紫色、下表皮紫红色,肉色米黄,纵径7.2cm(其中3cm露在地面)、横径6.5cm,单根重150g左右。肉质根口感脆硬(熟食细面)、水分少、味甜、风味浓,品质较佳。适宜熟食及腌制。但叶的比重大,肉质根产量低。
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