scholarly journals Rice Seedling Establishment in Drill Direct Sowing with the Use of Recycled-Paper Mulch.

1998 ◽  
Vol 67 (4) ◽  
pp. 457-461 ◽  
Author(s):  
Minoru YAMAUCHI
Keyword(s):  
Seedling Establishment ◽  
Rice Seedling ◽  
Recycled Paper ◽  
Direct Sowing

Effects of a lowland rice crop and of gypsum on a saline alkali clay

1956 ◽  
Vol 7 (2) ◽  
pp. 110 ◽  
Author(s):  
KP Barley ◽  
JT Hutton
Keyword(s):  
Seedling Establishment ◽  
Surface Soil ◽  
Clay Soil ◽  
Subterranean Clover ◽  
Rice Seedling ◽  
Exchangeable Cations ◽  
Lowland Rice ◽  
Rice Crop ◽  
Soluble Salts ◽  
Clay Dispersion

Lowland rice cropping for one season decreased the soluble salts, particularly the chlorides, in the top 30 in. of a saline alkali clay soil. The calcium:sodium ratio increased for soluble cations, but showed little change for exchangeable cations. The surface soil became slightly more water-stable, but below 3 in. the soil became easier to disperse. These changes had little effect on the growth of an irrigated annual pasture sown after rice cropping, except in the year of establishment. After 2 years' growth of the pasture, part of the soluble salts had returned to the top 30 in. of the soil. The application of gypsum at 2 and 8 tons/acre before growing the lowland rice crop increased the ca1cium:sodium ratio of both soluble and exchangeable cations and reduced clay dispersion. Rice seedling ,establishment and yields of stubble-sown subterranean clover were higher on the gypsum-treated plots.

scholarly journals Osmotic treatment, growth regulator and rooter in Tabebuia roseoalba (RIDL.) Sandwith seeds for direct sowing

2020 ◽  
Vol 42 ◽  
Author(s):  
Alexandre Carneiro da Silva ◽  
Maiara Pilar Palmeira da Silva ◽  
Rayssa Zamith ◽  
Gustavo Galetti ◽  
Fatima Conceição Márquez Piña-Rodrigues
Keyword(s):  
Seedling Establishment ◽  
Forest Restoration ◽  
Germination Rate ◽  
Seedling Emergence ◽  
Direct Seeding ◽  
Germination Test ◽  
Toxicity Effect ◽  
Induced Stress ◽  
Osmotic Treatment ◽  
Direct Sowing

Abstract: Direct seeding is a technology that reduces the costs of forest restoration projects and favors species which are difficult to establish for seedlings. The seeds osmotic treatment to accelerate and standardize germination and induce tolerance to environmental stresses may favor seedling establishment in field through direct sowing and contribute to the greater efficiency of this technique. With the purpose of favor seed germination and seedling establishment under direct seeding conditions in the field, Tabebuia roseoalba osmoprimed seeds in polyethylene glycol (PEG) solution and unconditioned seeds were treated with isolated and/or combined solutions of plant growth regulators (PGR) and rooting (RTG). These seeds were submitted to germination test and evaluated for percentage germination rate, germination speed index and normal seedlings, and to seedling emergence test by direct field seeding. RTG had a toxic effect on T. roseoalba seeds. Osmoconditioning induced stress tolerance by RTG during germination and on seedling establishment. PGR treatment favors seedling emergence in field conditions and alleviates the toxicity effect caused by RTG. These treatments have great potential for use in direct sowing of T. roseoalba seeds.

scholarly journals Improvement of Seedling Establishment by Seed Coating with Iron in Early-winter Direct-sowing Rice

2019 ◽  
Vol 88 (4) ◽  
pp. 259-267
Author(s):  
Satoko Oikawa ◽  
Masayoshi Nishi ◽  
Susumu Yui ◽  
Junichi Kashiwagi ◽  
Taiken Nakashima ◽  
...  
Keyword(s):  
Seedling Establishment ◽  
Seed Coating ◽  
Early Winter ◽  
Direct Sowing
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