Quantitative aspects of Orobanche crenata infestation in faba beans as affected by abiotic factors and parasite soil seedbank

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Autoren

  • A. M. Manschadi
  • J. Sauerborn
  • H. Stützel

Externe Organisationen

  • Universität Hohenheim
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)311-324
Seitenumfang14
FachzeitschriftWeed research
Jahrgang41
Ausgabenummer4
PublikationsstatusVeröffentlicht - 21 Dez. 2001

Abstract

The interactions between the root parasitic weed Orobanche crenata Forsk, and its host plant faba bean (Vicia faba L.) were quantified under controlled and field conditions at ICARDA's Tel Hadya research station. In the field experiments conducted in 1993-94 and 1994-95 faba beans were sown on two dates, in plots with 0, 50, 200 and 600 O. crenata seeds kg-1 soil, under both limited and sufficient moisture supply. The effects of temperature on the duration of the early developmental stages of O. crenata were investigated in a growth chamber. The extent of O. crenata infestation was closely related to the number of parasite seeds in the soil. The seed-density treatment with 600 seeds kg-1 soil resulted in complete crop failure. Furthermore, O. crenata infestation was higher under sufficient than under limiting water supply conditions, irrespective of sowing date. Only in the moderately infested plots, did shifting of the planting time of faba bean result in a significant decrease in parasite dry weight and an increase in crop seed yield. The timing of germination, attachment and further developmental stages of O. crenata was not related to faba bean growth stage and was affected primarily by soil temperature. The duration of O. crenata developmental stages was estimated using the thermal time concept. The relationship between total number of parasite attachments at the harvest of the faba bean crop and O. crenata seed density was dependent on maximum faba bean root-length density measured by the start of pod-filling in each treatment combination of sowing date and moisture supply. The results are discussed with reference to implications for the development of a dynamic simulation model for the prediction of faba bean yield losses caused by O. crenata.

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Quantitative aspects of Orobanche crenata infestation in faba beans as affected by abiotic factors and parasite soil seedbank. / Manschadi, A. M.; Sauerborn, J.; Stützel, H.
in: Weed research, Jahrgang 41, Nr. 4, 21.12.2001, S. 311-324.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

Manschadi AM, Sauerborn J, Stützel H. Quantitative aspects of Orobanche crenata infestation in faba beans as affected by abiotic factors and parasite soil seedbank. Weed research. 2001 Dez 21;41(4):311-324. doi: 10.1046/j.1365-3180.2001.00240.x
Manschadi, A. M. ; Sauerborn, J. ; Stützel, H. / Quantitative aspects of Orobanche crenata infestation in faba beans as affected by abiotic factors and parasite soil seedbank. in: Weed research. 2001 ; Jahrgang 41, Nr. 4. S. 311-324.
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title = "Quantitative aspects of Orobanche crenata infestation in faba beans as affected by abiotic factors and parasite soil seedbank",
abstract = "The interactions between the root parasitic weed Orobanche crenata Forsk, and its host plant faba bean (Vicia faba L.) were quantified under controlled and field conditions at ICARDA's Tel Hadya research station. In the field experiments conducted in 1993-94 and 1994-95 faba beans were sown on two dates, in plots with 0, 50, 200 and 600 O. crenata seeds kg-1 soil, under both limited and sufficient moisture supply. The effects of temperature on the duration of the early developmental stages of O. crenata were investigated in a growth chamber. The extent of O. crenata infestation was closely related to the number of parasite seeds in the soil. The seed-density treatment with 600 seeds kg-1 soil resulted in complete crop failure. Furthermore, O. crenata infestation was higher under sufficient than under limiting water supply conditions, irrespective of sowing date. Only in the moderately infested plots, did shifting of the planting time of faba bean result in a significant decrease in parasite dry weight and an increase in crop seed yield. The timing of germination, attachment and further developmental stages of O. crenata was not related to faba bean growth stage and was affected primarily by soil temperature. The duration of O. crenata developmental stages was estimated using the thermal time concept. The relationship between total number of parasite attachments at the harvest of the faba bean crop and O. crenata seed density was dependent on maximum faba bean root-length density measured by the start of pod-filling in each treatment combination of sowing date and moisture supply. The results are discussed with reference to implications for the development of a dynamic simulation model for the prediction of faba bean yield losses caused by O. crenata.",
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AU - Manschadi, A. M.

AU - Sauerborn, J.

AU - Stützel, H.

PY - 2001/12/21

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AB - The interactions between the root parasitic weed Orobanche crenata Forsk, and its host plant faba bean (Vicia faba L.) were quantified under controlled and field conditions at ICARDA's Tel Hadya research station. In the field experiments conducted in 1993-94 and 1994-95 faba beans were sown on two dates, in plots with 0, 50, 200 and 600 O. crenata seeds kg-1 soil, under both limited and sufficient moisture supply. The effects of temperature on the duration of the early developmental stages of O. crenata were investigated in a growth chamber. The extent of O. crenata infestation was closely related to the number of parasite seeds in the soil. The seed-density treatment with 600 seeds kg-1 soil resulted in complete crop failure. Furthermore, O. crenata infestation was higher under sufficient than under limiting water supply conditions, irrespective of sowing date. Only in the moderately infested plots, did shifting of the planting time of faba bean result in a significant decrease in parasite dry weight and an increase in crop seed yield. The timing of germination, attachment and further developmental stages of O. crenata was not related to faba bean growth stage and was affected primarily by soil temperature. The duration of O. crenata developmental stages was estimated using the thermal time concept. The relationship between total number of parasite attachments at the harvest of the faba bean crop and O. crenata seed density was dependent on maximum faba bean root-length density measured by the start of pod-filling in each treatment combination of sowing date and moisture supply. The results are discussed with reference to implications for the development of a dynamic simulation model for the prediction of faba bean yield losses caused by O. crenata.

KW - Irrigation

KW - Orobanche crenata

KW - Root-length density

KW - Sowing date

KW - Thermal time

KW - Vicia faba

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SP - 311

EP - 324

JO - Weed research

JF - Weed research

SN - 0043-1737

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