Articles
Effect of flooding period and infection with Fusarium oxysporum f. sp. asparagi on asparagus growth
Article number
1376_28
Pages
201 – 208
Language
English
Abstract
In recent years, torrential rains have caused flooding of asparagus fields in Japan.
Asparagus production fields often have poor drainage because they are converted paddy fields; therefore, decreased spear sprouting and plant vigor are observed in the flooded fields.
In the present study, the effect of the flooding period on asparagus growth was investigated using U-shaped cultivation containers in which water levels could be controlled.
In our study, four test plots with flooding to the ground level of the asparagus for 0, 1, 5, and 10 days were set up.
Our results indicated that root length decreased and root damage increased with longer flooding periods.
However, plant height, number of stems, number of roots, above-ground dry matter weight, and underground dry matter weight did not vary between different length flooding periods.
We also investigated the effects of a Fusarium oxysporum f. sp. asparagi infection and flooding period on asparagus growth.
Seedlings were planted in U-shaped containers filled with either soil contaminated with F. oxysporum f. sp. asparagi or uncontaminated soil with three test plots with flooding to the ground level for 0, 5, and 10 days. F. oxysporum contamination influenced all the characteristics surveyed, including plant height, number of stems, root length, number of roots, above-ground dry matter weight, and underground dry matter weight and caused root damage.
Asparagus grown in uncontaminated soil only exhibited decreasing root lengths with longer inundation periods.
The results indicate that asparagus growth is impaired by long flooding periods, and F. oxysporum f. sp. asparagi infection intensifies the impairment.
Asparagus production fields often have poor drainage because they are converted paddy fields; therefore, decreased spear sprouting and plant vigor are observed in the flooded fields.
In the present study, the effect of the flooding period on asparagus growth was investigated using U-shaped cultivation containers in which water levels could be controlled.
In our study, four test plots with flooding to the ground level of the asparagus for 0, 1, 5, and 10 days were set up.
Our results indicated that root length decreased and root damage increased with longer flooding periods.
However, plant height, number of stems, number of roots, above-ground dry matter weight, and underground dry matter weight did not vary between different length flooding periods.
We also investigated the effects of a Fusarium oxysporum f. sp. asparagi infection and flooding period on asparagus growth.
Seedlings were planted in U-shaped containers filled with either soil contaminated with F. oxysporum f. sp. asparagi or uncontaminated soil with three test plots with flooding to the ground level for 0, 5, and 10 days. F. oxysporum contamination influenced all the characteristics surveyed, including plant height, number of stems, root length, number of roots, above-ground dry matter weight, and underground dry matter weight and caused root damage.
Asparagus grown in uncontaminated soil only exhibited decreasing root lengths with longer inundation periods.
The results indicate that asparagus growth is impaired by long flooding periods, and F. oxysporum f. sp. asparagi infection intensifies the impairment.
Publication
Authors
T. Sonoda
Keywords
damage, disease, production, rains, vigor
Groups involved
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