Abstract
A pot experiment with artificial shading was conducted to study the effects of soil moisture content and light intensity on the plant growth and leaf physiological characteristics of squash variety "Jingyingyihao". Under all test soil moisture conditions, 30% shading promoted the growth of "Jingyingyihao", with the highest yield at 70% - 80% soil relative moisture contents. 70% shading inhibited plant growth severely, only flowering and not bearing fruits, no economic yield produced. In all treatments, there was a similar water consumption trend, i. e., both the daily and the total water consumption decreased with increasing shading and decreasing soil moisture content. Among all treatments, 30% shading and 70% - 80% soil relative moisture contents had the highest water use efficiency (2.36 kg mm(-1) hm(-2)) and water output rate (1.57 kg mm(-1) hm(-2)). The net photosynthetic rate, transpiration rate, stomatal conductance, and chlorophyll content of squash leaves decreased with increasing shading, whereas the intercellular CO2 concentration was in adverse. The leaf protective enzyme activity and proline content decreased with increasing shading, and the leaf MAD content decreased in the order of 70% shading, natural radiation, and 30% shading. Under the three light intensities, the change characteristics of squash leaf photosynthesis, protective enzyme activity, and proline and MAD contents differed with the increase of soil relative moisture content.
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Claims 14
Claim · model-written summary
Thirty percent shading promoted growth at all tested soil moisture levels.
Not reportedComparator
Verbatim
e0“Under all test soil moisture conditions, 30% shading promoted the growth of "Jingyingyihao"”
t0“squash”
Claim · model-written summary
Yield was highest at 70% - 80% soil relative moisture contents under 30% shading.
Verbatim
e0“with the highest yield at 70% - 80% soil relative moisture contents”
e1“30% shading promoted the growth of "Jingyingyihao"”
t0“squash”
Claim · model-written summary
Seventy percent shading severely inhibited growth.
Not reportedComparator
Verbatim
e0“70% shading inhibited plant growth severely”
t0“squash”
Claim · model-written summary
Under 70% shading, plants flowered but bore no fruits and produced no economic yield.
Not reportedDirection
Verbatim
e0“70% shading inhibited plant growth severely, only flowering and not bearing fruits, no economic yield produced”
t0“squash”
Claim · model-written summary
Daily water consumption decreased with increasing shading and decreasing soil moisture.
Verbatim
e0“both the daily and the total water consumption decreased with increasing shading and decreasing soil moisture content”
t0“squash”
Claim · model-written summary
Total water consumption decreased with increasing shading and decreasing soil moisture.
Verbatim
e0“both the daily and the total water consumption decreased with increasing shading and decreasing soil moisture content”
t0“squash”
Claim · model-written summary
Water use efficiency was highest under 30% shading and 70% - 80% soil relative moisture contents.
Verbatim
e0“30% shading and 70% - 80% soil relative moisture contents had the highest water use efficiency (2.36 kg mm(-1) hm(-2))”
t0“squash”
Claim · model-written summary
Water output rate was highest under 30% shading and 70% - 80% soil relative moisture contents.
Verbatim
e0“30% shading and 70% - 80% soil relative moisture contents had the highest water use efficiency (2.36 kg mm(-1) hm(-2)) and water output rate (1.57 kg mm(-1) hm(-2))”
t0“squash”
Claim · model-written summary
Net photosynthetic rate, transpiration rate, and stomatal conductance decreased with increasing shading.
Verbatim
e0“The net photosynthetic rate, transpiration rate, stomatal conductance, and chlorophyll content of squash leaves decreased with increasing shading”
Claim · model-written summary
Leaf chlorophyll content decreased with increasing shading.
Verbatim
e0“chlorophyll content of squash leaves decreased with increasing shading”
Claim · model-written summary
Intercellular CO2 concentration increased with increasing shading.
Verbatim
e0“whereas the intercellular CO2 concentration was in adverse”
e1“chlorophyll content of squash leaves decreased with increasing shading”
t0“squash”
Claim · model-written summary
Leaf protective enzyme activity and proline content decreased with increasing shading.
Verbatim
e0“The leaf protective enzyme activity and proline content decreased with increasing shading”
t0“squash”
Claim · model-written summary
Leaf MAD content declined across 70% shading, natural radiation, and 30% shading in that order.
Verbatim
e0“the leaf MAD content decreased in the order of 70% shading, natural radiation, and 30% shading”
t0“squash”
Claim · model-written summary
Changes in leaf photosynthesis, protective enzyme activity, and proline and MAD contents with soil moisture differed among light intensities.
- Taxon
- squashe0
- Organ / stage
- leafe0
- Treatment
- increase of soil relative moisture contente0
- Outcome
- photosynthesis, protective enzyme activity, and proline and MAD contentse0
- Qualifier
- Under the three light intensitiese0
Not reportedDirection
Verbatim
e0“Under the three light intensities, the change characteristics of squash leaf photosynthesis, protective enzyme activity, and proline and MAD contents differed with the increase of soil relative moisture content”
The same questions in other papers
shade · growth · Cucurbita (pumpkins)Results agree
2 papers in the same direction as this paper
- positive
- 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.