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首页> 外文期刊>Plant Pathology Journal >Cultural, Morphological and Pathogenic Variability of Alternaria solani Causing Early Blight in Tomato
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Cultural, Morphological and Pathogenic Variability of Alternaria solani Causing Early Blight in Tomato

机译：番茄早疫病致死链霉菌的文化，形态和致病性变异

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Experiment was conducted at BHU in the year 2012-13. Radial growth was not significantly different for most of the isolates. Seven DAI (days after inoculation) highest radial growth has obtained in isolate RF-1 (35.50 mm), Ten DAI maximum growth was observed in isolate EC-1 (52.00 mm) and Thirteen DAI maximum radial growth was same observed in two isolates IIVR and BHU-1 (88.75 mm). The maximum mean mycelial growth was observed in isolate IIVR (57.83 mm) followed by MF-4 (57.66 mm) and BHU-1 (56.83 mm). Isolates of/I. solani depicted high variability in pigment production on PDA medium. Mycelial growth patterns were observed on PDA where BG RF-1 SF-1 MF-4 BHU-1 grew with circular margin with smooth surfaced colony and AF-2, PN-4, EC-1, BX-2 and IIVRisolates grew with irregular margin and rough surface. Five varieties of tomato were screened with 10 different isolates. The variety Selection-7 and H-86 were highly susceptible and susceptible, respectively with all the isolates tested. The variety Feb-2 was resistant while, the variety Flora Dade and Swarna Naveen were highly resistant with all the isolates. There was no significant difference between Flora Dade and Swarna Naveen. Out of 10 isolates, only three major groups were recorded on the basis of SAS analysis likewise Group-A isolates were highly virulent (MF-4 and PN-4), Group-C isolates indicate virulent (BG, AF-2, EC-1 and RF-1) and Group- E isolates were less virulent (BHU-1, IIVR SF-1 and BX-2) with all the five varieties.
机译：实验于2012-13年度在BHU进行。大多数分离株的径向生长没有显着差异。分离株RF-1（35.50 mm）获得了7个DAI（接种后天数）最高的径向生长，分离株EC-1（52.00 mm）中观察到了10个DAI最大生长，并且两个分离株IIVR中观察到了13个DAI最大径向生长。和BHU-1（88.75毫米）。在分离株IIVR（57.83 mm）中观察到最大的平均菌丝生长，其次是MF-4（57.66 mm）和BHU-1（56.83 mm）。 / I的隔离。 solani描绘了PDA介质上颜料生产的高度可变性。在PDA上观察到菌丝体生长模式，其中BG RF-1 SF-1 MF-4 BHU-1的圆形边缘生长，表面菌落光滑，而AF-2，PN-4，EC-1，BX-2和IIVR的分离菌生长不规则。边缘和粗糙的表面。用10种不同的菌株筛选了五个品种的番茄。选择7和H-86品种分别对所有分离株高度敏感和敏感。 Feb-2品种具有抗性，而Flora Dade和Swarna Naveen品种对所有分离株均具有高度抗性。 Flora Dade和Swarna Naveen之间没有显着差异。在10个分离株中，根据SAS分析仅记录了三个主要组，同样，A组分离株具有高毒力（MF-4和PN-4），C组分离株显示强毒（BG，AF-2，EC- 1和RF-1）和E组分离株的毒性较低（BHU-1，IIVR SF-1和BX-2），这五个品种均如此。

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