Details
| Original language | English |
|---|---|
| Pages (from-to) | 311-324 |
| Number of pages | 14 |
| Journal | Weed research |
| Volume | 41 |
| Issue number | 4 |
| Publication status | Published - 21 Dec 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.
Keywords
- Irrigation, Orobanche crenata, Root-length density, Sowing date, Thermal time, Vicia faba
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Ecology, Evolution, Behavior and Systematics
- Agricultural and Biological Sciences(all)
- Agronomy and Crop Science
- Agricultural and Biological Sciences(all)
- Plant Science
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In: Weed research, Vol. 41, No. 4, 21.12.2001, p. 311-324.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Quantitative aspects of Orobanche crenata infestation in faba beans as affected by abiotic factors and parasite soil seedbank
AU - Manschadi, A. M.
AU - Sauerborn, J.
AU - Stützel, H.
PY - 2001/12/21
Y1 - 2001/12/21
N2 - 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.
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
UR - http://www.scopus.com/inward/record.url?scp=0034867799&partnerID=8YFLogxK
U2 - 10.1046/j.1365-3180.2001.00240.x
DO - 10.1046/j.1365-3180.2001.00240.x
M3 - Article
AN - SCOPUS:0034867799
VL - 41
SP - 311
EP - 324
JO - Weed research
JF - Weed research
SN - 0043-1737
IS - 4
ER -