Field evaluation of seed production, shattering, and dormancy in hybrid populations of transgenic rice (Oryza sativa) and the weed, red rice (Oryza sativa)

Plant Science ◽  
2000 ◽  
Vol 157 (1) ◽  
pp. 13-22 ◽  
Author(s):  
James Oard ◽  
Marc Alan Cohn ◽  
Steve Linscombe ◽  
David Gealy ◽  
Kenneth Gravois
Keyword(s):  
Oryza Sativa ◽  
Seed Production ◽  
Transgenic Rice ◽  
Field Evaluation ◽  
Red Rice

Suppression of Red Rice (Oryza sativa) Seed Production with Fluazifop and Quizalofop

Weed Science ◽  
1988 ◽  
Vol 36 (6) ◽  
pp. 800-803 ◽  
Author(s):  
Frederick P. Salzman ◽  
Roy J. Smith ◽  
Ronald E. Talbert
Keyword(s):  
Oryza Sativa ◽  
Seed Production ◽  
Field Research ◽  
Growth Stages ◽  
Red Rice ◽  
Rice Plants ◽  
Stages Of Growth ◽  
Sequential Treatments ◽  
Earlier Application ◽  
Effective Treatments

Field research was conducted in 1985 and 1986 to compare the efficacy of fluazifop and quizalofop on production of panicles and seeds of red rice. Single and first sequential treatments were applied to red rice in the early-tillering, midtillering, and panicle initiation stages of growth. Sequential treatments were applied 14 days after each earlier application to red rice in the midtillering, late-tillering, and early-heading growth stages, respectively. Both herbicides were applied singly or sequentially at 70, 140, and 280 g/ha. Sequential applications of fluazifop and quizalofop at 280 g/ha caused the greatest reduction of red rice panicle and seed production. Fluazifop at 280 g/ha applied sequentially reduced panicle production 75 to 80% and seed production 80%; 140 g/ha applied sequentially reduced seed production 83%. Quizalofop at 280 g/ha applied sequentially reduced panicle production 75 to 100% and seed production 91%. Sequential applications of either herbicide applied to red rice plants in the panicle initiation and early-heading growth stages were the most effective treatments.

scholarly journals Performance of the agronomic traits of six advanced promising lines of red rice (oryza sativa l.) grown on the paddy field

2021 ◽  
Vol 681 (1) ◽  
pp. 012033
Author(s):  
G R Sadimantara ◽  
E Febrianti ◽  
LO Afa ◽  
S Leomo ◽  
Muhidin ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Paddy Field ◽  
Agronomic Traits ◽  
Oryza Sativa L ◽  
Red Rice

Red Rice (Oryza sativa) Control in Drill-Seeded Rice (O. sativa)

Weed Science ◽  
1985 ◽  
Vol 33 (5) ◽  
pp. 703-707 ◽  
Author(s):  
Amadou Diarra ◽  
Roy J. Smith ◽  
Ronald E. Talbert
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Field Experiments ◽  
Growing Season ◽  
Rice Cultivar ◽  
Rice Grain ◽  
Rice Seed ◽  
Red Rice ◽  
Culm Density ◽  
High Yields

Field experiments were conducted to investigate methods of controlling red rice (Oryza sativaL. ♯ ORYSA) in drill-seeded rice (O. sativa). Treatments included the rice cultivar ‘Mars', coated with calcium peroxide (CaO2) at 40% (w/w) and a crop protectant, R-33865 (O,O-diethyl-O-phenyl phosphorothioate) at 0.5 and 1% (v/w). Molinate (S-ethyl hexahydro-1H-azepine-1-carbothioate) at 6.7 kg ai/ha was applied preplant incorporated (ppi). The land was flooded (2.5 to 5 cm deep) after seeding with rice (100 kg/ha, 2.5 cm deep), and the water was maintained throughout the growing season. CaO2, with or without molinate, increased rice grain yield 50% and increased rice culm density fivefold above untreated rice. Molinate applied ppi controlled 96% of the red rice. Rice seed coated with only CaO2or with CaO2plus R-33865 at 0.5%, each combined with ppi molinate, produced 5690 and 6030 kg/ha of grain, respectively. These high yields were associated with red rice control by molinate and good stands of rice provided by O2supplied by CaO2. R-33865 applied to rice seed at 1% (v/w) injured rice by reducing rice culm densities 41%, compared with rice without protectant.

Red Rice (Oryza sativa) Status after 5 Years of Imidazolinone-Resistant Rice Technology in Arkansas

2008 ◽  
Vol 22 (1) ◽  
pp. 200-208 ◽  
Author(s):  
Nilda R. Burgos ◽  
Jason K. Norsworthy ◽  
Robert C. Scott ◽  
Kenneth L. Smith
Keyword(s):  
Oryza Sativa ◽  
Red Rice

State of the foreign gene and of the genome in transgenic rice (Oryza sativa L.)

1993 ◽  
Vol 11 (S1) ◽  
pp. S123-S125 ◽  
Author(s):  
P. H. Bao ◽  
S. Castiglione ◽  
C. Giordani ◽  
W. Li ◽  
G. Wang ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Transgenic Rice ◽  
Oryza Sativa L ◽  
Foreign Gene

scholarly journals Piper caninum blume leaf extract and compost to suppress blast disease and increase the production of bali red rice (oryza sativa) in green house

2019 ◽  
Vol 5 (4) ◽  
pp. 46-54 ◽  
Author(s):  
Ni Luh Suriani
Keyword(s):  
Oryza Sativa ◽  
Crop Yield ◽  
Leaf Extract ◽  
Organic Fertilizer ◽  
Field Research ◽  
Blast Disease ◽  
Red Rice ◽  
The Right ◽  
The Impact ◽  
The Village

The parameters developed in organic farming are the use of vegetable pesticides and compost and liquid organic fertilizer. Some research has been done but it needs deeper research to get the right product. The purpose of this study was to determine the inhibitory activity of Piper caninum extract against the fungus Pyricuaria oryzae causing blast disease in rice, and to find out how much the impact of compost on increased crop yield after being combined with the extract. This research is a field research located in the village of Senganan, Penebel Tabanan Bali. With the following treatment Fo = control (100% soil). F1 = (soil 90% + compost 10% + extract 0.5%). F2 = (soil 80% + compost 20% + extract 1%) F3 = (soil 70% + 30% + extract 1.5%). F4 = (soil 60% + compost 40% + 2% extract), do repeat 4 times. The results showed that P. caninum extract effectively inhibited blast disease and could reduce the intensity of blast disease. The combination with compost can significantly increase yields (67.62%), reduce empty grains, and increase rice size.

scholarly journals Expression and functional validation of heat-labile enterotoxin B (LTB) and cholera toxin B (CTB) subunits in transgenic rice (Oryza sativa)

SpringerPlus ◽  
2015 ◽  
Vol 4 (1) ◽  
Author(s):  
Ho Seob Soh ◽  
Ha Young Chung ◽  
Hyun Ho Lee ◽  
Hemavathi Ajjappala ◽  
Kyoungok Jang ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Cholera Toxin ◽  
Transgenic Rice ◽  
Functional Validation ◽  
Toxin B ◽  
Cholera Toxin B ◽  
Heat Labile ◽  
Enterotoxin B

Genetic Analysis of Glufosinate Resistance in Crosses Between Transformed Rice (Oryza sativa) and Red Rice (Oryza sativa)

1998 ◽  
Vol 12 (2) ◽  
pp. 209-214 ◽  
Author(s):  
Sujatha Sankula ◽  
Michael P. Braverman ◽  
James H. Oard
Keyword(s):  
Oryza Sativa ◽  
Genetic Analysis ◽  
Bar Gene ◽  
Red Rice ◽  
Rice Plants ◽  
Ammonia Accumulation ◽  
Controlled Crosses ◽  
Dip Test ◽  
Made In

Reciprocal controlled crosses were made in the greenhouse between Gulfmont rice transformed with the bialaphos resistance (BAR) gene and red rice and BAR-transformed Koshihikari rice and red rice to assess the inheritance of glufosinate resistance. All F1 plants were resistant to 2.2 kg ai/ha glufosinate. Ammonia accumulation as a measure of glufosinate resistance in the F1 hybrids was assayed at 4 and 8 days after treatment (DAT). Ammonia accumulation in hybrids 4 DAT was similar to glufosinate treated, transformed rice, while treated nontransformed plants accumulated 14 to 23 times more ammonia compared with the hybrids. The nature of inheritance of glufosinate resistance in F2 rice plants was studied by a glufosinate dip test, a spray test, and ammonia assay. All three tests confirmed that glufosinate resistance, as influenced by the BAR gene, segregated in a 3 (resistant): 1 (susceptible) ratio.

Red Rice (Oryza sativa) Control and Suppression in Rice (O. sativa)

1991 ◽  
Vol 5 (4) ◽  
pp. 811-816 ◽  
Author(s):  
Sam L. Kwon ◽  
Roy J. Smith ◽  
Ronald E. Talbert
Keyword(s):  
Oryza Sativa ◽  
Plant Growth ◽  
Grain Quality ◽  
Field Experiments ◽  
Red Rice ◽  
Two Cultures ◽  
The Two Cultures ◽  
Rice Yields ◽  
Sequential Treatments ◽  
High Yields

Two field experiments were conducted from 1986 to 1988 to determine efficacy of herbidices and plant growth regulators for red rice control and suppression in water- and drill-seeded rice. Molinate applied PPI with fenoxaprop applied at panicle initiation (PI) of rice controlled 94 and 86% of red rice in water- and drill-seeded rice, respectively, compared with 79 and 49%, respectively, for molinate PPI alone in the two cultures. Although this treatment injured rice slightly (< 30%), rice so treated produced high yields with improved grain quality. Sequential treatments of molinate PPI followed by sethoxydim applied at PI or amidochlor applied at > 90% heading produced comparable rice yields with improved red rice control or suppression and grain quality in both cultures, compared with PPI molinate. Drill-seeded rice treated with molinate PPI followed by fenoxaprop applied at late boot or MH (maleic hydazide) applied 7 d after heading produced higher yield than rice treated with molinate PPI.

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