Evaluation of grain yield in sorghum hybrids under water stress

Menezes, C. B. de; Saldanha, D. C.; Santos, C. V. dos; Andrade, Luiz Carlos Ferreira de; Júlio, M. P. M.; Portugal, Arley Figueiredo; Tardin, F. D.

doi:10.4238/2015.october.19.11

Cited by 22 publications

(17 citation statements)

References 9 publications

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“…Despite being among the most drought tolerant cereals, the sorghum plant can suffer significant damage during its development, under strong water stress (Reddy et al, 2011;Menezes et al, 2015). Sorghum damage caused by drought stress is greater during reproductive stages than during the vegetative stage.…”

Section: Introductionmentioning

confidence: 99%

“…Sorghum breeding must consider the unpredictability of the environment during the off-season, selecting hybrids that are tolerant to drought and efficient in nutrient uptake. Also, the genotypes x environments and genotype x year interactions play an important role in the phenotypic expression of the drought tolerance (Menezes et al, 2015;Batista et al, 2017). Therefore, for efficient selection for rought tolerance it is essential to evaluate genotypes in different years and locations.…”

Section: Introductionmentioning

confidence: 99%

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Research Article Selection of sorghum for drought tolerance in a semiarid environment

Batista¹,

Carvalho²,

Portugal³

et al. 2019

Genet. Mol. Res.

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Drought stress is a serious obstacle for crop production, especially in arid and semi-arid areas of the world. Sorghum is a useful crop to grow in areas with erratic, poorly distributed or inadequate rainfall. To help determine the best alternatives, we evaluated 30 sorghum cultivars with and without water stress in the post-flowering plant stage. The work was carried out at the Experimental Station of Gorutuba, in Nova Porteirinha, MG, Brazil, during 2013 and 2014 seasons. The experimental design was a randomized complete block, with three replications and two water regimes. The traits evaluated were grain yield, number of days to flowering, plant height and 1,000 grain mass. Water restriction reduced the grain yield by 68.9% in 2013, 31.2% in 2014 and 50.1% in the average of the two years. The genotypes with best grain yield stability were B.Tx635, SC 720 and BR012RxSC566. Water stress significantly reduced plant height and grain mass.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research Article Selection of sorghum for drought tolerance in a semiarid environment

Batista¹,

Carvalho²,

Portugal³

et al. 2019

Genet. Mol. Res.

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“…This significant decrease in the grain yield/ha might be due to the adversely effects of the irrigation wa-ter stress on the physiological, biochemical and metabolism procedures within the plants. Water stress reduces photosynthesis; the most important physiological processes that regulate development and productivity of plants (Menezes et al, 2015;Hamza et al, 2016). The reductions in seed yield components due to the decrease in irrigation water supply might be due to the decline in plant height, leaf gas exchange and leaf area, which resulted in reduction of photosynthetic level due to the unavailability of water nutrients in the soil (Ghaafar et al, 2014;Bandani et al, 2014).…”

Section: Effect Of Irrigation Water Regimes On Yield and Yield Componmentioning

confidence: 99%

“…However, grain sorghum tolerates and avoids drought more than many other cereal crops, but the drought response of sorghum does not come without a yield loss. Menezes et al, (2015) evaluated forty-nine hybrids of grain sorghum under normal irrigation conditions or water stress in order to select those likely to be more tolerant of drought. Grain yield, weight of 1000 grains, harvest index, days to flowering, and plant height were affected by water stress; however, grain yield showed the largest relative reduction.…”

Section: Introductionmentioning

confidence: 99%

Optimizing Grain Sorghum (Sorghum bicolor L.) Productivity Under Full Irrigation and Stress Using Humic Acid in Arid Regions

Ismail

El‐Nakhlawy

2019

AJAS

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A field experiment was carried-out at the Agriculture Research Station of King Abdulaziz University during 2015/16 and 2016/17 seasons to optimize the productivity of grain sorghum under three irrigation water regimes and three humic acid (HA) levels. The first water regime was received the full irrigation water requirement (100% WR) while the second and the third water regimes received 80% and 60% from the full irrigation water requirements. Water regimes were investigated in main plots. The sub plots were three HA application levels namely: 5, 10 and 15 kg/ha. Each HA level for each plot was sown on soil surface and manually mixed with the upper 15 cm of soil surface before each planting date of the two. growing seasons. Results showed that, daily and seasonal water supplies were reduced by decreasing the applied water regimes. As irrigation water regime decreased grain yield and yield components significantly decreased. The average reduction over the two growing seasons in grain yield of sorghum were 4.7% in 80% WR and 25.5% in 60% WR when compared with full irrigation requirement treatment. Using HA by the level of 10 or 15 kg/ha as soil amendment improved yield production and yield components in grain sorghum. The increase in grain sorghum yield was 8% in 10 kg/ha level and 17.5 % in 15 kg/h HA level when compared with 5 kg/ha as an average over the two seasons. Irrigation water use efficiency (IWUE) was increased by decreasing irrigation water regime and increased by increasing HA application level. The IWUE of 80% WR with 15 kg/ha was significantly similar with 60% WR with 10 or 15kg/ha HA level. Finally, and according to the obtained results it can be concluded that 80% WR with 15 kg/ha HA reduced the grain yield by only 4.7 % while saved 20 % of irrigation water.

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“…Drought stress during early vegetative growth stage (GS) 1 through 3 can be significant but often occurs less frequently in production settings (Vanderlip and Reeves, 1972). Most studies have focused on latter stages of development: GS5 from panicle differentiation to flowering and GS9 from the beginning of grain fill through grain maturity (Borrell and Hammer, 2000, Borrell et al, 1999, 2000a, 2000b; Burke et al, 2013, 2010; Chapman et al, 2000; Crasta et al, 1999; Dev Sharma et al, 2006; Fracasso et al, 2016; Garrity et al, 1984; Girma and Krieg, 1992; Harris et al, 2007; Haussmann et al, 2002, 1999, 2000, 1998; Henzell et al, 1976; Jedmowski et al, 2014; Johnson et al, 2014; Kannangara et al, 1982; Kapanigowda et al, 2013; Kassahun et al, 2010; Kebede et al, 2001; Mahalakshmi and Bidinger, 2002; Manjarrez‐Sandoval et al, 1989; Menezes et al, 2015; Muchow and Sinclair, 1989; Peng and Krieg, 1992; Prasad et al, 2015; Rosenow and Clark, 1982; Rosenow et al, 1996, 1983; Sanchez et al, 2002; Stout et al, 1978; Tenkouano et al, 1993; Tuinstra et al, 1997; Wang et al, 2015; Wright et al, 1983a, 1983b, Xu et al, 2000). Marked responses to water‐deficit stress at GS5 are often seen as leaf rolling, uncharacteristic leaf erectness, leaf bleaching, leaf tip and margin burn, delayed flowering, saddle effect, poor panicle exertion, panicle blasting and floret abortion, and reduced panicle size.…”

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confidence: 99%

Registration of Four Postflowering Drought‐Tolerant Grain Sorghum Lines with Early‐Season Cold Tolerance

Burke

Emendack

Hayes

et al. 2018

J of Plant Registrations

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Four sorghum (Sorghum bicolor L.) germplasm lines-PSLS-SGCTB01 (Reg. No. GP-842, PI 685009), PSLS-SGCTR02 (Reg. No. GP-843, PI 685010), PSLS-SGCTB03 (Reg. No. GP-844, PI 685011), and PSLS-SGCTB04 (Reg. No. GP-845, PI 685012)were developed by the USDA-ARS in Lubbock, TX. The primary purpose for the release of these lines is to provide an alternative germplasm choice with superior early-season cold tolerance stacked with postlowering drought tolerance based on the stay-green trait. The PSLS-SGCTB01 and PSLS-SGCTR02 germplasm lines originated from the plant introduction PI 452605, PSLS-SGCTB03 arose from the plant introduction PI 452808, and PSLS-SGCTB04 arose from the plant introduction PI 452707. Lines derived from selected PI germplasm were evaluated in 2015 and 2016. Comparison of leaf and plant death ratings between BTx642 (staygreen check), SC-1506 (non-stay-green check), and the four developed lines with Ethiopian germplasm were determined for plants under irrigated, prelowering, and postlowering drought treatments. The four lines were also evaluated for inal germination percentages and vigor ratings for ield cold tests performed in 2015 and 2016. For public and private breeders, these new germplasm lines are an additional source for improving abiotic stress tolerance in diverse sorghum production environments. USDA-ARS Plant Stress and Germplasm Development Unit, 3810 4thSt., Lubbock, TX 79415. Mention of a trademark, warranty, proprietary product, or vendor does not constitute a guarantee by the USDA and does not imply approval or recommendation of the product to the exclusion of others that may be suitable. USDA is an equal opportunity provider and employer.Abbreviations: DAE, days after emergence; GS, growth stage; HSD, honest signiicant diference; LPD, leaf and plant death ratings.

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Evaluation of grain yield in sorghum hybrids under water stress

Cited by 22 publications

References 9 publications

Research Article Selection of sorghum for drought tolerance in a semiarid environment

Research Article Selection of sorghum for drought tolerance in a semiarid environment

Optimizing Grain Sorghum (Sorghum bicolor L.) Productivity Under Full Irrigation and Stress Using Humic Acid in Arid Regions

Registration of Four Postflowering Drought‐Tolerant Grain Sorghum Lines with Early‐Season Cold Tolerance

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