Drought Tolerance Assessment in Grain Sorghum (Sorghum bicolor [L.] Moench) Genotypes Using Agro-morphological Traits and DNA Markers

Hamza, Nada Babiker; Idris, Atif Elsadig; Elmunsor, Ismael Ibrahim; Ibrahim, Ali; Abuali, Atif Ibrahim

doi:10.3923/ijpbg.2016.125.131

Cited by 10 publications

(6 citation statements)

References 6 publications

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“…Drought stress at any of these stages can lead to significant yield losses (Tuinstra et al, 1997;Rosenow and Clark, 1995). However, there is a wide genetic diversity in the morphological, physiological, and agronomical response of sorghum to drought (Emendack 2007;Hamza et al, 2016). Two forms of drought stress have been identified in sorghum, viz.…”

Section: Introductionmentioning

confidence: 99%

Agro-morphological characterization of diverse sorghum lines for pre-and post-flowering drought tolerance

Emendack¹,

Burke²,

Sanchez³

et al. 2018

Aust J Crop Sci

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The impact of drought stress on sorghum yield does not only depend on the intensity and timing of drought, but as well on the developmental stage of the crop. One of the limitations in breeding for pre-and/or postflowering drought stress resistance in sorghum is the less availability of diverse genetic sources possessing drought tolerant agro-morphological or physiological traits that could be introgressed into elite sorghum lines. This research evaluate a diverse group of 54 introgressed, converted, and commonly used sorghum breeding lines for their tolerance to field drought stress imposed at the pre-flowering and post-anthesis developmental stages in 2015 and 2016 growing seasons. Agro-morphological characteristics such as panicle area, panicle width, and percent green leaf and yield-related characteristics such as total above ground dry biomass and dry panicle weight were identified as significant predictors of grain yield under water stress. The current research identifies other sources that could be use by breeding programs as donor lines for traits related to pre-and postflowering drought tolerance in sorghum. Following statistical distribution and Tukey-Krammer HSD connecting letter tests, lines JB39, SC191, and SC270 and RIL R.11269 were identified as plausible sources for pre-flowering drought tolerance, and JB14, JB15, JB19, JB22, JB24, JB25, JB26, and JB33 as sources for the staygreen trait. While the staygreen is a good selection tool for postflowering drought tolerance, identifying staygreen lines with minimal reductions in grain yield and with earlier flowering dates (JB14, JB22, JB24 and JB25 in this study) than most commonly used staygreen donor lines, will ensure that grain yield is not over sacrificed by the ability of the crop to staygreen under terminal drought conditions.

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Section: Introductionmentioning

confidence: 99%

Agro-morphological characterization of diverse sorghum lines for pre-and post-flowering drought tolerance

Emendack¹,

Burke²,

Sanchez³

et al. 2018

Aust J Crop Sci

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“…Sorgum (Sorghum bicolor L.) merupakan komoditas penting urutan kelima di dunia setelah gandum, beras, jagung, dan barley (Anas, Rachmadi, Setiawan, & Mansyur, 2015;Hamza, Idris, Elmunsor, Ibrahim, & Abuali, 2016;Krupa et al, 2017;Batista et al, 2018). Tidak bisa dipungkiri bahwa bahan bakar yang berasal dari fosil lama-kelamaan akan habis.…”

Section: Pendahuluanunclassified

Respon pertumbuhan sorgum manis (Sorghum bicolor L.) terhadap pemberian air yang berbeda

Samanhudi¹,

Yunus²,

Sakya³

et al. 2021

JAC

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Tujuan penelitian ini adalah untuk mengetahui tanggap pertumbuhan beberapa varietas Sorgum manis terhadap cekaman kekeringan. Penelitian meliputi dua tahap, yaitu di laboratorium dan di rumah kaca. Percobaan di laboratorium menggunakan Rancangan Acak Lengkap Faktorial dengan dua faktor dan tiga ulangan. Sedangkan percobaan di rumah kaca menggunakan Rancangan Acak Kelompok Lengkap Faktorial juga dengan dua faktor dan tiga ulangan. Hasil penelitian dianalisis dengan sidik ragam pada taraf 5%, dilanjutkan dengan uji Duncan taraf 5%. Pada penelitian di laboratorium, semua variabel pengamatan tidak terpengaruh oleh perlakuan polyethylene glycol (PEG-6000). Sedangkan pada penelitian di lapangan, cekaman air dapat menunda saat kemunculan bunga, menghambat penambahan tinggi tanaman, jumlah daun, berat brangkasan kering, dan berat biji per malai. Masing-masing varietas memberikan tanggap pertumbuhan yang berbeda terhadap cekaman kekeringan. Varietas Sweet dan Kawali menghasilkan tinggi tanaman yang lebih tinggi daripada varietas Numbu, serta adanya korelasi antara panjang akar kecambah dan panjang akar varietas Sweet.

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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%

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 Tolerance Assessment in Grain Sorghum (Sorghum bicolor [L.] Moench) Genotypes Using Agro-morphological Traits and DNA Markers

Cited by 10 publications

References 6 publications

Agro-morphological characterization of diverse sorghum lines for pre-and post-flowering drought tolerance

Agro-morphological characterization of diverse sorghum lines for pre-and post-flowering drought tolerance

Respon pertumbuhan sorgum manis (Sorghum bicolor L.) terhadap pemberian air yang berbeda

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

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