Abstract
This study investigated the effect of different relative humidity (RH) regimes on graft healing of grafted seedlings of watermelon (Citrullus vulgaris Schrad.). Two watermelon cultivars (‘Speed’ and ‘Sambok Honey’) were grafted onto the ‘RS-Dongjanggun’ bottle gourd rootstock (Lagenaria siceraria Stanld.) and the grafted seedlings were maintained under one of three relative humidity regimes, 95-96% [1.1-0.8 (day) or 0.8-0.6 (night) g·m-3 vapor pressure deficit (VPD)], 97-98% [ 0.7-0.4 (day) or 0.5-0.3 (night) g·m-3 (VPD)], or 99-100% [0.3-0.0 (day) or 0.2-0.0 (night) g·m-3 (VPD)] according to the Mollier diagram based on the air temperature of 25°C day/18°C night with 16 h photoperiod per day. Among the RH treatments, 97-98% significantly increased plant height and fresh weight of the rootstock and scion of the ‘Speed’ and it also enhanced the graft union connection of both cultivars after two days of grafting. However, plant height and thickness of the scion of ‘Sambok Honey’ was increased by the 99-100% RH treatment. Furthermore, both cultivars grown in the 95-96 and 97-98% RH treatments consisted of lower levels of endogenous H2O2 and less activities of antioxidant enzymes which illustrated the occurrence of less oxidative stress. Hence, the results of this study identified the optimal RH level for the graft healing of watermelon seedlings.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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 6
Claim · model-written summary
97-98% relative humidity significantly increased rootstock and scion height and fresh weight in Speed.
- Taxon
- watermelon
Citrullus lanatust0 - Material
- ‘Speed’e0
- Treatment
- 97-98%e0
- Outcome
- plant height and fresh weight of the rootstock and scione0
- Direction
- increasede0
- Comparator
- RH treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the RH treatments, 97-98% significantly increased plant height and fresh weight of the rootstock and scion of the ‘Speed’”
t0“Watermelon Seedlings”
e1“97-98% [ 0.7-0.4 (day) or 0.5-0.3 (night) g·m-3 (VPD)]”
Claim · model-written summary
97-98% relative humidity enhanced graft union connection in both cultivars after two days.
- Taxon
- WatermelonCitrullus lanatust0
- Treatment
- 97-98%e1
- Outcome
- graft union connectione0
- Direction
- enhancede0
- Qualifier
- after two days of graftinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it also enhanced the graft union connection of both cultivars after two days of grafting.”
t0“Watermelon Seedlings”
e1“97-98% [ 0.7-0.4 (day) or 0.5-0.3 (night) g·m-3 (VPD)]”
Claim · model-written summary
99-100% relative humidity increased scion height and thickness in Sambok Honey.
- Taxon
- WatermelonCitrullus lanatust0
- Material
- ‘Sambok Honey’e0
- Treatment
- 99-100% RH treatmente0
- Outcome
- plant height and thickness of the scione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height and thickness of the scion of ‘Sambok Honey’ was increased by the 99-100% RH treatment.”
t0“Watermelon Seedlings”
e1“97-98% [ 0.7-0.4 (day) or 0.5-0.3 (night) g·m-3 (VPD)]”
Claim · model-written summary
95-96 and 97-98% humidity yielded lower endogenous H2O2 in both cultivars.
- Taxon
- WatermelonCitrullus lanatust0
- Treatment
- 95-96 and 97-98% RH treatmentse0
- Outcome
- levels of endogenous H2O2e0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both cultivars grown in the 95-96 and 97-98% RH treatments consisted of lower levels of endogenous H2O2”
t0“Watermelon Seedlings”
e1“97-98% [ 0.7-0.4 (day) or 0.5-0.3 (night) g·m-3 (VPD)]”
Claim · model-written summary
95-96 and 97-98% humidity yielded lower antioxidant enzyme activities in both cultivars.
- Taxon
- WatermelonCitrullus lanatust0
- Treatment
- 95-96 and 97-98% RH treatmentse0
- Outcome
- activities of antioxidant enzymese0
- Direction
- lesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both cultivars grown in the 95-96 and 97-98% RH treatments consisted of lower levels of endogenous H2O2 and less activities of antioxidant enzymes”
t0“Watermelon Seedlings”
e1“97-98% [ 0.7-0.4 (day) or 0.5-0.3 (night) g·m-3 (VPD)]”
Claim · model-written summary
Authors interpret lower H2O2 and antioxidant activity as indicating less oxidative stress.
- Taxon
- WatermelonCitrullus lanatust0
- Outcome
- less oxidative stresse0
- Qualifier
- less activities of antioxidant enzymese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“less activities of antioxidant enzymes which illustrated the occurrence of less oxidative stress.”
t0“Watermelon Seedlings”
e1“97-98% [ 0.7-0.4 (day) or 0.5-0.3 (night) g·m-3 (VPD)]”
The same questions in other papers
humidity · growth · Citrullus lanatus (watermelon)Results agree
1 paper in the same direction as this paper
- positive
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.