Paper · 2019 · Biodiversitas Journal of Biological Diversity

Leaf chlorophyll content in North Sulawesi (Indonesia) local rice cultivars subjected to polyethylene glycol (PEG) 8000-induced water deficit at the vegetative phase

Song Ai Nio; MONALISA Pirade; DANIEL PETER MANTILEN Ludong

3
claims
9
verbatim quotes
25
citations
1
research areas
✓
Open access

Abstract

Abstract. Nio SA, Pirade M, Ludong DPM. 2019. Leaf chlorophyll content in North Sulawesi (Indonesia) local rice cultivars subjected to polyethylene glycol (PEG) 8000-induced water deficit at the vegetative phase. Biodiversitas 20: 2462-2467. Climate change can result in drought stress in the environment and this condition reduces rice production. Polyethylene glycol (PEG) is used to induce water deficit, because it is able to decrease water potential in the solution. The present study aimed to evaluate the physiological response of North Sulawesi local rice (cvs. Superwin, Ombong, Burungan, and Temo) to PEG 8000-induced water deficit based on the leaf chlorophylls (a, b and total chl.) content at the vegetative phase. The results of this study showed that PEG 8000-induced water deficit with media water potential (WP) -0.25 and -0.5 MPa decreased the content of leaf total chlorophyll and leaf chlorophyll a. The longer treatment period could reduce the contents of leaf total chlorophyll, chlorophyll a and chlorophyll b. The content of leaf chlorophyll total and chlorophyll a were potential physiological indicators for North Sulawesi local rice response to PEG 8000-induced water deficit.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 3

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

PEG water deficit decreased total chlorophyll and chlorophyll a.

Treatment
PEG 8000-induced water deficite0
Outcome
leaf total chlorophyll and leaf chlorophyll ae0
Direction
decreasede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“PEG 8000-induced water deficit with media water potential (WP) -0.25 and -0.5 MPa decreased the content of leaf total chlorophyll and leaf chlorophyll a.”

✓ located verbatim in the source · abstract, characters 766–919 · show in text ↑
t0

“Leaf chlorophyll content in North Sulawesi (Indonesia) local rice cultivars subjected to polyethylene glycol (PEG) 8000-induced water deficit at the vegetative phase”

✓ located verbatim in the source · title, characters 0–165 · show in text ↑
t1

“Abstract”

✓ located verbatim in the source · abstract, characters 0–8 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Longer treatment reduced total chlorophyll, chlorophyll a and b.

Treatment
longer treatment periode0
Outcome
leaf total chlorophyll, chlorophyll a and chlorophyll be0
Direction
reducee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The longer treatment period could reduce the contents of leaf total chlorophyll, chlorophyll a and chlorophyll b.”

✓ located verbatim in the source · abstract, characters 920–1033 · show in text ↑
t0

“Leaf chlorophyll content in North Sulawesi (Indonesia) local rice cultivars subjected to polyethylene glycol (PEG) 8000-induced water deficit at the vegetative phase”

✓ located verbatim in the source · title, characters 0–165 · show in text ↑
t1

“Abstract”

✓ located verbatim in the source · abstract, characters 0–8 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Total chlorophyll and chlorophyll a were proposed as indicators.

Outcome
potential physiological indicatorse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The content of leaf chlorophyll total and chlorophyll a were potential physiological indicators for North Sulawesi local rice response to PEG 8000-induced water deficit.”

✓ located verbatim in the source · abstract, characters 1034–1203 · show in text ↑
t0

“Leaf chlorophyll content in North Sulawesi (Indonesia) local rice cultivars subjected to polyethylene glycol (PEG) 8000-induced water deficit at the vegetative phase”

✓ located verbatim in the source · title, characters 0–165 · show in text ↑
t1

“Abstract”

✓ located verbatim in the source · abstract, characters 0–8 · show in text ↑

poly(ethylene glycol) · physiology: pigments · Oryza sativa (rice)Results agree

3 papers: 0 positive, 3 negative or no effect

2 papers in the same direction as this paper

  1. negative
  2. negative
See all 3 papers →

drought · physiology: pigments · Oryza sativa (rice)Results differ

42 papers: 6 positive, 36 negative or no effect

35 papers in the same direction as this paper · 6 in the opposite direction

  1. positive
  2. positive
  3. positive

38 papers more in this group

See all 42 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.