Abstract
The influence of Eriophyes medicaginis on the growth of lucerne (Medicago sativa L.) was studied at four temperatures (15, 20, 25 and 29¦C) at an initial infestation level of 10 mites per seedling, and at two temperatures (20 and 29¦C) with four initial levels of infestation (2, 5, 10 and 20 mites per seedling). At 25¦ and 29¦C, infestation with 10 mites per seedling significantly reduced dry weight of tops, stem length and the development of axillary shoots within 22 days of infestation. In this period, the numbers of mites increased 16-fold at 29OC, ninefold at 25¦C and sixfold at 20¦C, but there was no increase at 15¦C. The extent of damage caused by mites at 20¦C appeared to vary with the differences in growth of the plants under different photoperiods. Under a short photoperiod (10.3 h) where no axillary shoots developed on either infested or control plants, the extent of damage due to mite infestation was much higher than under a longer photoperiod (13.2 h) where axillary shoots developed on all seedlings. Damage symptoms on leaves of infested plants included chlorotic patches (mainly at 20¦ and 25¦C), agate-like banding (29¦C) and a waxy mottle (15¦C).
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Claims 8
Claim · model-written summary
At 25 and 29 °C, infestation with 10 mites per seedling significantly reduced dry weight of tops, stem length and axillary shoot development within 22 days.
- Taxon
- lucerne
Medicago sativae0 - Organ / stage
- axillary shootse1
- Treatment
- infestation with 10 mites per seedlinge1
- Interactor
- Eriophyes medicaginise0pest
- Outcome
- dry weight of tops, stem length and the development of axillary shootse1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The influence of the lucerne bud mite ( Eriophyes medicaginis Keifer) on the growth of lucerne”
e0“The influence of Eriophyes medicaginis on the growth of lucerne (Medicago sativa L.) was studied at four temperatures (15, 20, 25 and 29¦C)”
e1“At 25¦ and 29¦C, infestation with 10 mites per seedling significantly reduced dry weight of tops, stem length and the development of axillary shoots within 22 days of infestation”
Claim · model-written summary
At 29 °C the number of mites increased 16-fold within the 22-day period.
- Taxon
- lucerneMedicago sativae0
- Treatment
- at 29OCe2
- Interactor
- Eriophyes medicaginise0pest
- Outcome
- numbers of mitese2
- Direction
- increasede2
- Value
- 16-folde2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The influence of the lucerne bud mite ( Eriophyes medicaginis Keifer) on the growth of lucerne”
e0“The influence of Eriophyes medicaginis on the growth of lucerne (Medicago sativa L.) was studied at four temperatures (15, 20, 25 and 29¦C)”
e2“In this period, the numbers of mites increased 16-fold at 29OC, ninefold at 25¦C and sixfold at 20¦C, but there was no increase at 15¦C”
Claim · model-written summary
At 25 °C the number of mites increased ninefold within the 22-day period.
- Taxon
- lucerneMedicago sativae0
- Treatment
- at 25¦Ce2
- Interactor
- Eriophyes medicaginise0pest
- Outcome
- numbers of mitese2
- Direction
- increasede2
- Value
- ninefolde2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The influence of the lucerne bud mite ( Eriophyes medicaginis Keifer) on the growth of lucerne”
e0“The influence of Eriophyes medicaginis on the growth of lucerne (Medicago sativa L.) was studied at four temperatures (15, 20, 25 and 29¦C)”
e2“In this period, the numbers of mites increased 16-fold at 29OC, ninefold at 25¦C and sixfold at 20¦C, but there was no increase at 15¦C”
Claim · model-written summary
At 20 °C the number of mites increased sixfold within the 22-day period.
- Taxon
- lucerneMedicago sativae0
- Treatment
- at 20¦Ce2
- Interactor
- Eriophyes medicaginise0pest
- Outcome
- numbers of mitese2
- Direction
- increasede2
- Value
- sixfolde2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The influence of the lucerne bud mite ( Eriophyes medicaginis Keifer) on the growth of lucerne”
e0“The influence of Eriophyes medicaginis on the growth of lucerne (Medicago sativa L.) was studied at four temperatures (15, 20, 25 and 29¦C)”
e2“In this period, the numbers of mites increased 16-fold at 29OC, ninefold at 25¦C and sixfold at 20¦C, but there was no increase at 15¦C”
Claim · model-written summary
At 15 °C there was no increase in the number of mites within the 22-day period.
- Taxon
- lucerneMedicago sativae0
- Treatment
- at 15¦Ce2
- Interactor
- Eriophyes medicaginise0pest
- Outcome
- numbers of mitese2
- Direction
- no increasee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The influence of the lucerne bud mite ( Eriophyes medicaginis Keifer) on the growth of lucerne”
e0“The influence of Eriophyes medicaginis on the growth of lucerne (Medicago sativa L.) was studied at four temperatures (15, 20, 25 and 29¦C)”
e2“In this period, the numbers of mites increased 16-fold at 29OC, ninefold at 25¦C and sixfold at 20¦C, but there was no increase at 15¦C”
Claim · model-written summary
Infested lucerne leaves showed chlorotic patches at 20 and 25 °C, agate-like banding at 29 °C and a waxy mottle at 15 °C.
- Taxon
- lucerneMedicago sativae0
- Interactor
- Eriophyes medicaginise0pest
- Outcome
- Damage symptoms on leavese3
- Qualifier
- chlorotic patches (mainly at 20¦ and 25¦C), agate-like banding (29¦C) and a waxy mottle (15¦C)e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The influence of the lucerne bud mite ( Eriophyes medicaginis Keifer) on the growth of lucerne”
e0“The influence of Eriophyes medicaginis on the growth of lucerne (Medicago sativa L.) was studied at four temperatures (15, 20, 25 and 29¦C)”
e3“Damage symptoms on leaves of infested plants included chlorotic patches (mainly at 20¦ and 25¦C), agate-like banding (29¦C) and a waxy mottle (15¦C)”
Claim · model-written summary
Under a short photoperiod (10.3 h) the damage due to mite infestation was much higher than under a longer photoperiod (13.2 h).
- Taxon
- lucerneMedicago sativae0
- Treatment
- short photoperiod (10.3 h)e4
- Interactor
- Eriophyes medicaginise0pest
- Outcome
- extent of damage due to mite infestatione4
- Direction
- much highere4
- Comparator
- longer photoperiod (13.2 h)e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The influence of the lucerne bud mite ( Eriophyes medicaginis Keifer) on the growth of lucerne”
e0“The influence of Eriophyes medicaginis on the growth of lucerne (Medicago sativa L.) was studied at four temperatures (15, 20, 25 and 29¦C)”
e4“Under a short photoperiod (10.3 h) where no axillary shoots developed on either infested or control plants, the extent of damage due to mite infestation was much higher than under a longer photoperiod (13.2 h)”
Claim · model-written summary
The extent of damage caused by mites at 20 °C appeared to vary with plant growth differences under different photoperiods.
- Taxon
- lucerneMedicago sativat0
- Treatment
- different photoperiodse5
- Interactor
- mitese5pest
- Outcome
- extent of damage caused by mitese5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“The influence of the lucerne bud mite ( Eriophyes medicaginis Keifer) on the growth of lucerne”
e5“The extent of damage caused by mites at 20¦C appeared to vary with the differences in growth of the plants under different photoperiods”
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See all 18 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.