Abstract
Drought significantly impacts sugarcane yield, making drought resistance an important trait in drought-prone regions. The effects of the timing and duration of drought on yield and yield components, including relationships among these traits, were examined using a diverse set of sugarcane genotypes in a 2-year (planted cane and first ratoon) field study. Three drought treatments (no water stress (SD0), short-term (SD1), and long-term (SD2) drought) were assigned as the main plot and replicated four times. Within each plot, six genotypes were nested in a split-plot design. Drought reduced yield and its components, with the decline greater in SD2 than in SD1. Strong relationships between yield and its components like stalk height and density and height growth rate, especially under drought, make these traits potential surrogates for yield in drought screening experiments. The genotypes F03-362 and KK3 displayed high, stable yield potential across drought treatments, but KK3 lost potential in ratoon crop under drought. Although KK09-0358 displayed high yield potential, it was very sensitive to drought stress while UT12 and KK09-0939 displayed low yield potential and sensitivity to drought. TPJ04-768 displayed low but stable yield potential across drought treatments and crops. F03-362 and TPJ04-768 have utility in studies seeking to couple physiological with agronomic parameters promoting drought resistance and as parents for developing cultivars combining high and stable yield performance under drought.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 13
Claim · model-written summary
Drought reduced sugarcane yield and its components relative to no water stress.
Verbatim
e0“Drought reduced yield and its components”
e1“no water stress (SD0)”
t0“Sugarcane”
Claim · model-written summary
The decline in yield and components was greater under long-term drought (SD2) than short-term drought (SD1).
Verbatim
e0“the decline greater in SD2 than in SD1”
t0“Sugarcane”
Claim · model-written summary
Strong relationships were found between yield and its components such as stalk height, stalk density and height growth rate, especially under drought.
Not reportedDirection
Verbatim
e0“Strong relationships between yield and its components like stalk height and density and height growth rate, especially under drought”
t0“Sugarcane”
Claim · model-written summary
The authors suggest stalk height, density and height growth rate are potential surrogates for yield in drought screening experiments.
Verbatim
e0“make these traits potential surrogates for yield in drought screening experiments”
t0“Sugarcane”
Claim · model-written summary
Genotype F03-362 displayed high, stable yield potential across drought treatments.
Verbatim
e0“The genotypes F03-362 and KK3 displayed high, stable yield potential across drought treatments”
t0“Sugarcane”
Claim · model-written summary
Genotype KK3 displayed high, stable yield potential across drought treatments.
Verbatim
e0“The genotypes F03-362 and KK3 displayed high, stable yield potential across drought treatments”
t0“Sugarcane”
Claim · model-written summary
KK3 lost yield potential in the ratoon crop under drought.
Verbatim
e0“but KK3 lost potential in ratoon crop under drought”
t0“Sugarcane”
Claim · model-written summary
Genotype KK09-0358 displayed high yield potential.
Verbatim
e0“Although KK09-0358 displayed high yield potential, it was very sensitive to drought stress”
t0“Sugarcane”
Claim · model-written summary
Genotype KK09-0358 was very sensitive to drought stress.
Verbatim
e0“Although KK09-0358 displayed high yield potential, it was very sensitive to drought stress”
t0“Sugarcane”
Claim · model-written summary
Genotype UT12 displayed low yield potential and low sensitivity to drought.
Verbatim
e0“UT12 and KK09-0939 displayed low yield potential and sensitivity to drought”
t0“Sugarcane”
Claim · model-written summary
Genotype KK09-0939 displayed low yield potential and low sensitivity to drought.
Verbatim
e0“UT12 and KK09-0939 displayed low yield potential and sensitivity to drought”
t0“Sugarcane”
Claim · model-written summary
Genotype TPJ04-768 displayed low but stable yield potential across drought treatments and crops.
Verbatim
e0“TPJ04-768 displayed low but stable yield potential across drought treatments and crops”
t0“Sugarcane”
Claim · model-written summary
The authors state F03-362 and TPJ04-768 are useful for studies coupling physiological with agronomic drought-resistance parameters and as parents for cultivars combining high, stable yield under drought.
Verbatim
e0“F03-362 and TPJ04-768 have utility in studies seeking to couple physiological with agronomic parameters promoting drought resistance and as parents for developing cultivars combining high and stable yield performance under drought”
t0“Sugarcane”
The same questions in other papers
drought · yield · Saccharum officinarum (sugarcane)Positive and negative results
26 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
27 papers more in this group
See all 31 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.