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首页> 外文期刊>Revista Brasileira de Fruticultura >Suscetibilidade de genótipos de maracujazeiro-azedo à septoriose em casa de vegeta??o
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Suscetibilidade de genótipos de maracujazeiro-azedo à septoriose em casa de vegeta??o

机译：百香果基因型对温室中败血症的敏感性

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The objective of this study was to evaluate the reaction of 60 passionfruit (Passiflora edulis Sims f. flavicarpa Degener) genotypes to septoriosis. The experimental design was randomized blocks with four replications and six plants by plot. The inoculation was made by spraying a pathogen suspension (105conidia/ml) on the plants. Six evaluations were made weekly, 18 days after inoculation. The disease severity was evaluated following the disease index (1, no symptoms; 2, leaves showing until 10% of lesion area; 3, leaves showing 10 to 33% of lesion area; leaves showing over 35% of lesion area; 5, leaf fall) and the percentage of leaf fall. The genotypes which showed less susceptibility were MAR.20.27, Joseph and MAR.20.36, whereas the genotypes MAR.20.59 and MAR.20.48 presented the higher index of susceptibility. Between the score obtained by the less susceptible genotype (3.4) and the score obtained by the most susceptible genotype (4.5) in the lesion scale, there was a difference of 31.8%, indicating that there is variability among the genotypes for resistance to septoriosis. The difference between the highest (81.6%) and the lowest (49.9%) percentage of leaf fall was of 31.7%.
机译：这项研究的目的是评估60种百香果（Passiflora edulis Sims f。flavicarpa Degener）基因型对败血症的反应。实验设计是按地块随机重复的块，具有四个重复和六个植物。通过在植物上喷洒病原体悬浮液（105分生孢子/ ml）进行接种。接种后18天，每周进行六次评估。根据疾病指数评估疾病的严重程度（1，无症状; 2，叶片显示到病变面积的10％; 3，叶片显示到病变面积的10％至33％;叶片显示超过35％的病变面积; 5，叶片秋天）和叶子掉落的百分比。敏感性较低的基因型为MAR.20.27，Joseph和MAR.20.36，而MAR.20.59和MAR.20.48的基因型则具有较高的敏感性指数。在病变量表中，由较不易感的基因型（3.4）获得的评分与最易感的基因型（4.5）获得的评分之间存在31.8％的差异，表明这些基因型之间对败血症的抵抗力存在差异。最高（81.6％）和最低（49.9％）的落叶率之间的差异为31.7％。

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