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首页> 外文期刊>Colture Protette: CP >First investigations on the diseases affecting green asparagus crops in Sicily.
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First investigations on the diseases affecting green asparagus crops in Sicily.

机译：对西西里岛影响绿色芦笋作物的疾病的初步调查。

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During the last years, the cultivation of the green asparagus (Asparagus officinalis) was increasing in southern Italy, in particular in Sicily, due to either the need of crop differentiation, the increased demand of the market, and the introduction of new hybrids more suitable to the local soil and environment characteristics. Investigations pointing to individualize the emerging diseases of asparagus grown in Sicily have been scheduled in a research programme devoted to promote the vegetable crops in southern Italy (PROM). Samples of fully developed and young spears, roots and rhizomes have been collected in 2006-07 in 23 farms, mostly suited in Messina province, and subjected to ELISA and RT-PCR analysis for the detection of virus infections, and to traditional isolations for the detection of root-rot fungi. Serological and molecular analysis showed an Asparagus virus 1 (AV1) incidence quite high (34%) in crops younger than one year and very high (>90%) in 2 or more years old crops. No differences in AV1 incidence were observed among the genotypes of A. officinalis (UC 157, Grande and Italo), but Asparagus amarus was shown to be tolerant because of low incidence (8%) in spite of a strong infection pressure. Asparagus virus 2 was detected in two crops of an unidentified asparagus cultivar in Agrigento province only. Fusarium proliferatum and F. oxysporum proved to be the causal agents of roots and rhizomes rots, being pathogenic on Precoce d'Argeneuil seedlings and representing 37 and 22% of the total Fusarium spp. isolates, respectively. F. solani and Fusarium species not producing microconidia were sporadically isolated. A. amarus showed to be more tolerant than A. officinalis to the root rot caused by Fusarium spp.
机译：在过去的几年中，由于作物分化的需要，市场需求的增加以及在意大利南部，尤其是在西西里岛，绿色芦笋（芦笋）的种植有所增加。引入新的杂交种更适合当地的土壤和环境特征。一项旨在促进意大利南部蔬菜作物生长的研究计划已安排了针对西西里岛生长的芦笋新兴疾病的个性化调查。 2006-07年度，在23个主要适合墨西拿省的农场中采集了成熟的矛，根和根茎的样本，并对其进行了ELISA和RT-PCR分析，以检测病毒感染，并通过传统分离方法进行分离。检测根腐真菌。血清学和分子分析显示，芦笋病毒1（AV1）的发生率在不到一年的农作物中非常高（34％），而在2年以上的农作物中非常高（> 90％）。在 A基因型之间未观察到AV1发生率的差异。药用（UC 157，Grande和Italo），但是尽管感染压力很强，但芦笋由于其低发生率（8％）而具有耐受性。仅在阿格里真托省的两种身份不明的芦笋品种中发现了芦笋病毒2。 增生镰刀菌和 F。尖孢霉菌被证明是根腐病和根茎腐烂的病原体，对早熟禾幼苗有致病性，占镰孢菌总数的37％和22％。分离。 F。零星地分离出不产生微分生孢子的solani和Fusarium。 A。 amarus 显示出比 A更宽容。到腐皮病引起的根腐病。

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