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首页> 外文期刊>Acta Horticulturae >Aphid tolerance of different hop genotypes: first attempts to develop a simple biotest for hop breeding by the use of Phorodon humuli .
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Aphid tolerance of different hop genotypes: first attempts to develop a simple biotest for hop breeding by the use of Phorodon humuli .

机译：蚜虫对不同啤酒花基因型的耐受性：首先尝试通过使用 Phorodon humuli 开发一种简单的啤酒花育种生物试验。

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摘要

A keystone of future pest management in hops is the breeding of cultivars (cvs.) that are tolerant or resistant to Phorodon humuli infestation. During 2006 and 2007 first attempts were made for the development of a biotest concerning the aphid susceptibility of different hop genotypes. We chose for these tests the susceptible cvs. 'Hallertauer Magnum' (HM) and 'Herkules' (HS), the aphid-tolerant or -resistant cvs. 'Spalter Select' (SE) and 'Boadicea' (BO), and two apparently resistant genotypes from our germplasm - the male accession "38" and the wild hop "Jena 49". Aphid cages were mounted to leaves taken from potted greenhouse plants of these six genotypes, and each cage was equipped with an aphid larva with known day of birth. The leaves (12 replications per genotype) were stored in a climate chamber, and the 72 cages opened three times a week to count and remove all new-born larvae. The mother aphids stayed in their cages until the death of the last aphid marked the end of a series. Altogether eight series were conducted. The cumulative alive offspring of one aphid was highest on HM, with an overall mean number of 66.2 larvae, and lowest on "38", with 14.9 larvae. However, overall means of the other cvs. were not significantly lower - 59.7 on HS, 59.6 on SE and 57.6 on BO. The maximum number of larvae produced by one aphid was 115 on HM. The lifespan of the aphids was longest on HM, with an overall mean of 39.8 days, and shortest on "38", with 24.4 days. The other genotypes produced similar lifespans from 31.7 to 34.3 days. The record holder survived on HM for 69 days. These results, especially concerning the aphid-tolerant cvs. BO and SE, demonstrate that for the development of a practical, simple aphid biotest there is still a long way to go.
机译：啤酒花未来病虫害管理的重点是对 Phorodon humuli 侵染具有耐受性或抗性的品种的培育。在2006年至2007年间，人们首次尝试开发有关不同啤酒花基因型的蚜虫敏感性的生物测试。我们为这些测试选择了易受攻击的简历。 'Hallertauer Magnum'（HM）和'Herkules'（HS），耐蚜虫或抗CVS。 'Spalter Select'（SE）和'Boadicea'（BO），以及来自我们种质的两种明显抗药性的基因型-男性登录号“ 38”和野生啤酒花“ Jena 49”。将蚜虫笼子安装到从这六种基因型的盆栽温室植物上采摘的叶子上，并且每个笼子都装有已知出生日期的蚜虫幼虫。叶子（每个基因型12个重复）被存储在一个气候箱中，并且72个笼子每周打开3次，以计数并清除所有新生幼虫。母蚜一直呆在笼子里，直到最后一只蚜虫的死亡标志着一系列的结束。总共进行了八个系列。一只蚜虫的累积存活子代在HM上最高，平均平均幼虫数为66.2，而在“ 38”上最低，为14.9。但是，其他简历的总体含义。没有显着降低-HS为59.7，SE为59.6，BO为57.6。在HM上，一只蚜虫产生的幼虫最大数量为115。蚜虫的寿命在HM上最长，平均为39.8天，在“ 38”上最短，为24.4天。其他基因型的寿命从31.7天到34.3天相似。唱片持有人在HM上生存了69天。这些结果，特别是关于耐蚜虫的cvs。 BO和SE证明，要开发实用，简单的蚜虫生物试验，还有很长的路要走。

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