Abstract
ABSTRACT Yield and profitability of sugarcane (a complex hybrid of Saccharum spp.) grown on sand soils are much lower than on organic soils in Florida owing to biotic and abiotic stresses. A greenhouse study was conducted using a sand soil to identify effects of water deficit stress (WS) during sugarcane early growth on leaf photosynthetic components, plant growth, and dry matter accumulation. Treatments included two sugarcane genotypes (CP 01‐2390 and CP 80‐1743) and two water regimes (well watered [WW] and WS). All plants were well watered before initiating WS. Water was withheld from the WS pots when plants reached seven to eight leaves on the primary stem. During the WS treatment, plant growth and leaf photosynthetic components were measured. Final green leaf area (GLA) and shoot biomass were determined at the end of the experiment. Water stress depressed leaf relative chlorophyll level (SPAD), stomatal conductance (g s ), leaf net photosynthetic rate (Pn), transpiration rate (Tr), transpiration use efficiency (TUE) of photosynthesis, and GLA, resulting in reduced shoot biomass. CP 01‐2390 was superior to CP 80‐1743 in most measured physiological and growth traits under the WW and WS conditions, suggesting that selection of genotypes with tolerance to WS while improving irrigation management will improve sugarcane yields on sand soils. Physiological and growth traits, such as SPAD, g s , Pn, Tr, TUE, GLA, tillering, and stalk length, may be useful for early detection of WS and for evaluation of sugarcane genotypes in the stress tolerance.
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 6
Claim · model-written summary
Water stress depressed leaf SPAD, stomatal conductance and net photosynthetic rate of sugarcane compared with well-watered plants.
Verbatim
e0“Yield and profitability of sugarcane (a complex hybrid of Saccharum spp.) grown on sand soils”
e1“Water stress depressed leaf relative chlorophyll level (SPAD), stomatal conductance (g s ), leaf net photosynthetic rate (Pn), transpiration rate (Tr), transpiration use efficiency (TUE) of photosynthesis, and GLA, resulting in reduced shoot biomass”
e2“two water regimes (well watered [WW] and WS)”
e6“A greenhouse study was conducted using a sand soil”
Claim · model-written summary
Water stress depressed transpiration rate, transpiration use efficiency and green leaf area of sugarcane compared with well-watered plants.
Verbatim
e0“Yield and profitability of sugarcane (a complex hybrid of Saccharum spp.) grown on sand soils”
e1“Water stress depressed leaf relative chlorophyll level (SPAD), stomatal conductance (g s ), leaf net photosynthetic rate (Pn), transpiration rate (Tr), transpiration use efficiency (TUE) of photosynthesis, and GLA, resulting in reduced shoot biomass”
e2“two water regimes (well watered [WW] and WS)”
e6“A greenhouse study was conducted using a sand soil”
Claim · model-written summary
Water stress reduced shoot biomass of sugarcane compared with well-watered plants.
Verbatim
e0“Yield and profitability of sugarcane (a complex hybrid of Saccharum spp.) grown on sand soils”
e1“Water stress depressed leaf relative chlorophyll level (SPAD), stomatal conductance (g s ), leaf net photosynthetic rate (Pn), transpiration rate (Tr), transpiration use efficiency (TUE) of photosynthesis, and GLA, resulting in reduced shoot biomass”
e2“two water regimes (well watered [WW] and WS)”
e6“A greenhouse study was conducted using a sand soil”
Claim · model-written summary
Sugarcane genotype CP 01‐2390 was superior to CP 80‐1743 in most physiological and growth traits under well-watered and water-stress conditions.
Verbatim
e0“Yield and profitability of sugarcane (a complex hybrid of Saccharum spp.) grown on sand soils”
e3“CP 01‐2390 was superior to CP 80‐1743 in most measured physiological and growth traits under the WW and WS conditions”
Claim · model-written summary
Selecting water-stress-tolerant genotypes while improving irrigation management is expected to improve sugarcane yields on sand soils.
Verbatim
e0“Yield and profitability of sugarcane (a complex hybrid of Saccharum spp.) grown on sand soils”
e4“suggesting that selection of genotypes with tolerance to WS while improving irrigation management will improve sugarcane yields on sand soils”
Claim · model-written summary
Physiological and growth traits may be useful for early detection of water stress in sugarcane.
Verbatim
e0“Yield and profitability of sugarcane (a complex hybrid of Saccharum spp.) grown on sand soils”
e5“may be useful for early detection of WS”
The same questions in other papers
drought · physiology: photosynthesis · Saccharum officinarum (sugarcane)Positive and negative results
20 papers in the same direction as this paper · 4 in the opposite direction
- positive
- negative
- negative
21 papers more in this group
See all 25 papers →drought · growth · Saccharum officinarum (sugarcane)Positive and negative results
36 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- negative
40 papers more in this group
See all 44 papers →drought · physiology: gas exchange · Saccharum officinarum (sugarcane)Results agree
7 papers in the same direction as this paper
- negative
- negative
- negative
4 papers more in this group
See all 8 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.