scholarly journals Seed Priming with Polyethylene Glycol Induces Physiological Changes in Sorghum (Sorghum bicolor L. Moench) Seedlings under Suboptimal Soil Moisture Environments

PLoS ONE ◽  
2015 ◽  
Vol 10 (10) ◽  
pp. e0140620 ◽  
Author(s):  
Fei Zhang ◽  
Jialin Yu ◽  
Christopher R. Johnston ◽  
Yanqiu Wang ◽  
Kai Zhu ◽  
...  
Keyword(s):  
Soil Moisture ◽  
Polyethylene Glycol ◽  
Sorghum Bicolor ◽  
Seed Priming ◽  
Physiological Changes ◽  
Sorghum Bicolor L

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

2021 ◽  
Vol 3 (1) ◽  
pp. 21-30
Author(s):  
Samanhudi Samanhudi ◽  
Ahmad Yunus ◽  
Amalia Tetrani Sakya ◽  
Novianda Nugroho
Keyword(s):  
Polyethylene Glycol ◽  
Sorghum Bicolor ◽  
Peg 6000 ◽  
Sorghum Bicolor L

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.

scholarly journals Performance of rabi Sorghum Genotypes (Sorghum bicolor (L) Moench) to Varied Soil Moisture Regimes

2020 ◽  
Vol 9 (11) ◽  
pp. 1241-1246
Author(s):  
Gangadasari Sravana Lakshmi ◽  
B. N. Aravind Kumar ◽  
N. G. Hanamaratti ◽  
V. S. Kubsad
Keyword(s):  
Soil Moisture ◽  
Sorghum Bicolor ◽  
Moisture Regimes ◽  
Sorghum Genotypes ◽  
Sorghum Bicolor L

GERMINATION OF SORGHUM BICOLOR UNDER POLYETHYLENE GLYCOL-INDUCED STRESS

1976 ◽  
Vol 56 (1) ◽  
pp. 21-24 ◽  
Author(s):  
P. M. SAINT-CLAIR
Keyword(s):  
Polyethylene Glycol ◽  
Drought Tolerance ◽  
Sorghum Bicolor ◽  
Stress Level ◽  
Research Program ◽  
Plant Material ◽  
Grain Sorghum ◽  
The Other ◽  
Induced Stress ◽  
Sorghum Bicolor L

A germination study drawn from a research program on drought tolerance of grain sorghum (Sorghum bicolor L. Moench) was conducted with seeds exposed to six concentrations of polyethylene glycol ranging from 0 to 12% in weight. Eleven cultivars of this crop — M35-1, CE-90, 69-4, NK300, G393, C-42Y, Meloland, RS610, NB9776K, X4027 and RS626 — were involved. The plant material was kept in the dark and at a temperature of 28 C during 18 h. Increasing the concentration of the chemical resulted in poorer germination along with marked differences among the cultivars. CE-90, 69-4, RS626, NK300 and C-42Y showed better germination performance at the highest stress level than the other cultivars.

scholarly journals Partitioning hydraulic resistance in Sorghum bicolor leaves reveals unique correlations with stomatal conductance during drought

2014 ◽  
Vol 41 (1) ◽  
pp. 25 ◽  
Author(s):  
Troy W. Ocheltree ◽  
Jesse B. Nippert ◽  
Mary Beth Kirkham ◽  
P. Vara V. Prasad
Keyword(s):  
Soil Moisture ◽  
Stomatal Conductance ◽  
Gas Exchange ◽  
Sorghum Bicolor ◽  
Hydraulic Resistance ◽  
Water Movement ◽  
Cereal Species ◽  
Leaf Resistance ◽  
Cell Turgor ◽  
Sorghum Bicolor L

The hydraulic architecture of leaves represents the final path along which liquid water travels through the plant and comprises a significant resistance for water movement, especially for grasses. We partitioned leaf hydraulic resistance of six genotypes of Sorghum bicolor L. (Moench) into leaf specific hydraulic resistance within the large longitudinal veins (r*LV) and outside the large veins (r*OLV), and correlated these resistances with the response of stomatal conductance (gs) and photosynthesis (A) to drought. Under well-watered conditions, gs was tightly correlated with r*OLV (r2 = 0.95), but as soil moisture decreased, gs was more closely correlated with r*LV (r2 = 0.97). These results suggest that r*OLV limits maximum rates of gas exchange, but the ability to efficiently move water long distances (low r*LV) becomes more important for the maintenance of cell turgor and gas exchange as soil moisture declines. Hydraulic resistance through the leaf was negatively correlated with evapotranspiration (P < 0.001) resulting in more conservative water use in genotypes with large leaf resistance. These results illustrate the functional significance of leaf resistance partitioning to declining soil moisture in a broadly-adapted cereal species.

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