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首页> 外文期刊>Revista Brasileira de Fruticultura >Avalia??o de genótipos tetraploides de bananeira cultivados em área infestada pelo agente causal do mal-do-Panamá
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Avalia??o de genótipos tetraploides de bananeira cultivados em área infestada pelo agente causal do mal-do-Panamá

机译:在巴拿马病的病原体侵染的地区中生长的香蕉四倍体基因型的评估

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Fusarium wilt is one of the major diseases leading to great losses in banana crop in Brazil since most cultivars used are susceptible. The objective of the present work was to evaluate agronomical characteristics and resistance to Fusarium wilt in tetraploid banana hybrids. The experiment was carried out in the experimental field at Embrapa Cassava and Tropical Fruits in complete randomized design with 10 replicates of one plant each in the years 2000 and 2001. Fourteen tetraploids were evaluated: FHIA-03, PV03-44, PC42-01, PV42-53, PV42-68, PV42-81, PV42-85, PV42-129, PV42-142, PV42-143, SH3640, ST12-31, ST42-08 and YB42-21 and the Silk cultivar used as the control. The following characteristics were evaluated: plant height (m) and pseudostem diameter (cm) at 30 cm from the ground, bunch weight (kg), hand weight (kg) and fruit weight (g), number of hands per bunch, fruits per hand and days to flowering until harvest and Fusarium wilt incidence. The average of the genotypes were grouped by the Scott Knott test at 5% probability. There is a broad variation regarding the characteristics evaluated. The best genotypes are: FHIA 03, ST12-31, SH3640, PV42-142, PV42-53 and PV42-68 for presenting good agronomical characteristics as well as resistance to Fusarium wilt.
机译:镰刀菌枯萎病是导致巴西香蕉作物大量损失的主要病害之一,因为使用的大多数品种均易感。本工作的目的是评估四倍​​体香蕉杂种的农艺特性和对枯萎病的抗性。该实验是在2000年和2001年在Embrapa木薯和热带水果试验场中进行的,完全随机设计,每株植物重复10次重复。评估了14种四倍体:FHIA-03,PV03-44,PC42-01,对照使用PV42-53,PV42-68,PV42-81,PV42-85,PV42-129,PV42-142,PV42-143,SH3640,ST12-31,ST42-08和YB42-21。评估以下特征:距地面30厘米处的植物高度(m)和假茎直径(cm),束重(kg),手重(kg)和水果重(g),每束手数,直到开花和镰刀菌枯萎发病,手和天才能开花。基因型的平均值通过Scott Knott检验以5%的概率分组。在评估的特性方面存在很大差异。最佳基因型为:FHIA 03,ST12-31,SH3640,PV42-142,PV42-53和PV42-68,表现出良好的农艺特性以及对枯萎病的抵抗力。

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