Abstract
Starch levels in roots were lower in defoliated, watered black oak seedlings than in non-defoliated, watered seedlings in two separate experiments. Starch levels in unwatered, non-defoliated seedlings were lower only when drought was severe. Drought and defoliation together resulted in lower starch levels than either one alone. Reducing sugars and several amino acids were higher in unwatered seedlings than in nondefoliated and watered ones, but not in those subjected to less severe droughts. Some increase in averages of reducing sugars and certain amino acids occurred in once- and twice-defoliated, watered plants. Levels of catechin and quercitrin were usually lower in defoliated than in nondefoliated seedlings, regardless of watering, and higher in unwatered seedlings than in watered ones, regardless of defoliation. Addition of fertilizer to the soil had no effect on growth, but in some combinations of drought and defoliation it resulted in lower carbohydrate levels.
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Claims 9
Claim · model-written summary
Defoliation lowered root starch levels in watered black oak seedlings in two separate experiments.
Verbatim
t0“Black Oak Seedlings”
e1“Starch levels in roots were lower in defoliated, watered black oak seedlings than in non-defoliated, watered seedlings in two separate experiments”
Claim · model-written summary
Starch levels in unwatered, non-defoliated seedlings were lower only under severe drought.
- Taxon
- Black Oakt0
- Treatment
- unwaterede2
- Outcome
- Starch levelse2
- Direction
- lowere2
- Qualifier
- only when drought was severee2
Not reportedComparator
Verbatim
t0“Black Oak Seedlings”
e2“Starch levels in unwatered, non-defoliated seedlings were lower only when drought was severe”
Claim · model-written summary
Drought and defoliation together lowered starch levels more than either factor alone.
Verbatim
t0“Black Oak Seedlings”
e3“Drought and defoliation together resulted in lower starch levels than either one alone”
Claim · model-written summary
Reducing sugars and several amino acids were higher in unwatered seedlings than in nondefoliated and watered ones, but not under less severe drought.
Verbatim
t0“Black Oak Seedlings”
e4“Reducing sugars and several amino acids were higher in unwatered seedlings than in nondefoliated and watered ones, but not in those subjected to less severe droughts”
Claim · model-written summary
Reducing sugars and certain amino acids showed some increase in averages in once- and twice-defoliated watered plants.
- Taxon
- Black Oakt0
- Treatment
- once- and twice-defoliatede5
- Outcome
- reducing sugars and certain amino acidse5
- Direction
- increasee5
- Qualifier
- in averagese5
Not reportedComparator
Verbatim
t0“Black Oak Seedlings”
e5“Some increase in averages of reducing sugars and certain amino acids occurred in once- and twice-defoliated, watered plants”
Claim · model-written summary
Catechin and quercitrin levels were usually lower in defoliated than in nondefoliated seedlings, regardless of watering.
Verbatim
t0“Black Oak Seedlings”
e6“Levels of catechin and quercitrin were usually lower in defoliated than in nondefoliated seedlings, regardless of watering, and higher in unwatered seedlings than in watered ones, regardless of defoliation”
Claim · model-written summary
Catechin and quercitrin levels were higher in unwatered than in watered seedlings, regardless of defoliation.
Verbatim
t0“Black Oak Seedlings”
e6“Levels of catechin and quercitrin were usually lower in defoliated than in nondefoliated seedlings, regardless of watering, and higher in unwatered seedlings than in watered ones, regardless of defoliation”
Claim · model-written summary
Fertilizer addition had no effect on seedling growth.
Not reportedComparator
Verbatim
t0“Black Oak Seedlings”
e7“Addition of fertilizer to the soil had no effect on growth, but in some combinations of drought and defoliation it resulted in lower carbohydrate levels”
Claim · model-written summary
Fertilizer addition lowered carbohydrate levels in some combinations of drought and defoliation.
- Taxon
- Black Oakt0
- Treatment
- Addition of fertilizer to the soile7
- Outcome
- carbohydrate levelse7
- Direction
- lowere7
- Qualifier
- in some combinations of drought and defoliatione7
Not reportedComparator
Verbatim
t0“Black Oak Seedlings”
e7“Addition of fertilizer to the soil had no effect on growth, but in some combinations of drought and defoliation it resulted in lower carbohydrate levels”