Response of BAR-Transformed Rice (Oryza sativa) and Red Rice (Oryza sativa) to Glufosinate Application Timing

1997 ◽  
Vol 11 (2) ◽  
pp. 303-307 ◽  
Author(s):  
Sujatha Sankula ◽  
Michael P. Braverman ◽  
Steven D. Linscombe
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Plant Height ◽  
Rice Plant ◽  
Yield Reduction ◽  
Bar Gene ◽  
Red Rice ◽  
Visible Injury ◽  
Application Timing ◽  
Boot Stage

Glufosinate at 2.2 kg ai/ha injured rice transformed with the BAR gene more when applied to one- to two-leaf (23 to 26%) than to three- to four-leaf (13 to 19%) plants. Visible injury was least when applications were made at boot stage (3 to 14%). However, applications at boot stage caused an average grain yield reduction of 16%. Most treatments did not influence rice plant height. Among single applications (0.3, 0.4, 0.6, 0.8, and 1.1 kg/ha), 1.1 kg/ha glufosinate at three- to four-leaf stage of red rice resulted in greater control (91%) than at panicle initiation (74%) or at boot stage (77%). Injury to red rice was two to 11 times greater than the injury to BAR-transformed rice depending on glufosinate rate and application timing.

Response of Acetolactate Synthase–Resistant Grain Sorghum to Nicosulfuron Plus Rimsulfuron

2010 ◽  
Vol 24 (4) ◽  
pp. 411-415 ◽  
Author(s):  
D. Shane Hennigh ◽  
Kassim Al-Khatib ◽  
Mitchell R. Tuinstra
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Field Experiments ◽  
Acetolactate Synthase ◽  
Grain Sorghum ◽  
Yield Reduction ◽  
Growth Stages ◽  
Visible Injury ◽  
Leaf Stage ◽  
Sorghum Grain

The lack of POST herbicides to control grasses in grain sorghum prompted researchers to develop acetolactate synthase (ALS)–resistant grain sorghum. Field experiments were conducted to evaluate the differential response of ALS-resistant grain sorghum to POST application of nicosulfuron + rimsulfuron applied at three growth stages. ALS-resistant grain sorghum was treated with 0, 13 + 7, 26 + 13, 39 + 20, 52 + 26, 65 + 33, 78 + 39, and 91 + 46 g ai ha−1of nicosulfuron + rimsulfuron when plants were at the three- to five-leaf, seven- to nine-leaf, or 11- to 13-leaf stage. In general, as nicosulfuron + rimsulfuron rates increased, visible injury increased at the three- to five-leaf and seven- to nine-leaf stages. Injury was greatest 1 wk after treatment for the three- to five-leaf and seven- to nine-leaf stages across all ratings, and plants then began to recover. No injury was observed at any rating time for the 11- to 13-leaf stage. Plant height and sorghum grain yield were reduced as nicosulfuron + rimsulfuron rates increased when applied at the three- to five-leaf stage. However, nicosulfuron + rimsulfuron applied at the seven- to nine-leaf and 11- to 13-leaf stages did not decrease sorghum yield. This research indicated that nicosulfuron + rimsulfuron application at the three- to five-leaf stage injured ALS-resistant grain sorghum; however, application at the seven- to nine-leaf or 11- to 13-leaf stages did not result in grain yield reduction.

Reciprocal Yield Analysis of Red Rice (Oryza sativa) Competition in Cultivated Rice

Weed Science ◽  
1991 ◽  
Vol 39 (1) ◽  
pp. 42-47 ◽  
Author(s):  
Dan J. Pantone ◽  
John B. Baker
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Rice Plant ◽  
Competitive Ability ◽  
Field Experiments ◽  
Yield Losses ◽  
Red Rice ◽  
Cultivated Rice ◽  
Yield Model ◽  
Yield Analysis

Four years of field experiments were used to assess the competitive ability of red rice, a weedy variety of rice, and ‘Mars’, a cultivar of rice. Red rice was the dominant competitor each of the 4 yr, and an average of one red rice plant reduced Mars grain yield per plant equal to the effect of four Mars plants. Intervarietal competition was more important than intravarietal competition for Mars, whereas the reverse was true for red rice. The product of the coefficients for intravarietal competition did not significantly exceed the product of the coefficients for intervarietal competition, indicating that the two varieties were competing for the same resources. Using the reciprocal yield model coefficients from 1989, grain yield losses of Mars, due to red rice densities of 4, 16, 25, and 300 plants m−2, were predicted to approximate 13, 37, 48, and 92%, respectively, at a fixed cultivar density of 100 plants m−2.

Varietal Tolerance of Rice (Oryza sativa) to Bromoxynil and Triclopyr at Different Growth Stages

1992 ◽  
Vol 6 (4) ◽  
pp. 968-974 ◽  
Author(s):  
Dan J. Pantone ◽  
John B. Baker
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Yield Reduction ◽  
Growth Stages ◽  
Average Yield ◽  
Visible Injury ◽  
Leaf Stage ◽  
Varietal Tolerance ◽  
Different Growth Stages

This study was conducted to determine the tolerance of three cultivars of rice (‘Lemont’, ‘Mars', and ‘Tebonnet’) to bromoxynil and triclopyr. The effects of two rates of application (the labeled rate and twice the labeled rate) at three different growth stages (two- to three-leaf stage, four- to five-leaf stage, and panicle initiation) on percent visible injury rating and percent grain yield reduction of rice were investigated. Percent visible injury ratings for triclopyr averaged across all rates and application times, were 15, 16, and 25% (LSD = 3%) for Tebonnet, Mars, and Lemont, respectively, whereas ratings for bromoxynil were 11, 8, and 7% injury (LSD = 2%). Tebonnet was more tolerant than Lemont to triclopyr with an average percent grain yield reduction, across treatments, of 6% compared with 9% for Mars and 12% for Lemont (LSD = 4%). Bromoxynil did not decrease the average yield of any of the three cultivars.

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.

scholarly journals PEMBERIAN POC GAMAL TERHADAP PERTUMBUHAN DAN PRODUKSI PADI SAWAH (Oryza sativa L.) DENGAN METODE SALIBU

EUGENIA ◽  
2018 ◽  
Vol 24 (1) ◽  
Author(s):  
Mifta Mamentu ◽  
Jeanne M. Paulus ◽  
Edy Lengkong
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Plant Height ◽  
Rice Field ◽  
Oryza Sativa L ◽  
Organic Fertilizer ◽  
Field Research ◽  
Lowland Rice ◽  
Growth And Yield ◽  
Treatment Factor

ABSTRACT The purpose of the research was to studied the application of gliricidia MOL on the growth and yield of lowland rice in the salibu method, and to get the best concentration of gliricidia liquid organic fertilizer  (POC) on the growth and production of lowland rice. Field research has been conducted in Tababo Village, Subdistrict of Belang, district of Southeast Minahasa. The treatment in the experiment consists of one treatment factor, that were concentrations of gliricidia POC, ie  : 0, 50 , 100, 150, and 200 ml/litre. The results showed that gliricidia POC  have an effect on plant height, the number of  grain/panicle, and the dry grain yield (GKP) / plot, but not affect the number of productive tillers and weight of 1,000 grain. The best results were achieved in gliricidia POC concentration 200 ml/litre  with the highest values were: plant height was 98.93 cm; 116.420 grain/panicle; and 8.300 kg dry grain yield or equivalent to 6.92 ton/ha.Keywords : gliricidia POC, production, lowland rice,  salibu method

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.

Effects of Simulated MSMA Drift on Rice (Oryza sativa) Growth and Yield

Weed Science ◽  
1981 ◽  
Vol 29 (3) ◽  
pp. 303-308 ◽  
Author(s):  
E. P. Richard ◽  
H. R. Hurst ◽  
R. D. Wauchope
Keyword(s):  
Oryza Sativa ◽  
Gossypium Hirsutum ◽  
Plant Height ◽  
Weed Control ◽  
Developmental Stages ◽  
Growth And Yield ◽  
Stages Of Development ◽  
Early Season ◽  
Application Timing ◽  
Over The Top

Levels of MSMA (monosodium methanearsonate) that simulated drift (0.2, 0.39, and 0.78 kg/ha) were applied over-the-top to rice (Oryza sativaL. ‘Vista’, ‘Starbonnet’, or ‘Labelle’) after flooding at four developmental stages between early tillering and late jointing. The MSMA rates used were equivalent to, or lower than, the 0.78-kg/ha rate that would be applied as an over-the-top application to cotton (Gossypium hirsutumL.) for early season weed control. Over-the-top applications of MSMA did not affect heading and maturity dates of filled grains regardless of the rate or application timing. Reductions occurred, however, in plant height, number of panicles, and yield. In addition, the percentage of erect panicles showing typical “straighthead” symptoms increased. Rice sensitivity to MSMA depended on MSMA rate and stage of growth with injury being most severe as rice approached the reproductive stages of development. Because aerial applications of MSMA to cotton are normally made before rice reaches the reproductive stage, injury resulting from MSMA drift should be minimal.

Molinate (S-ethyl hexahydro-1H-azepine-1-carbothioate) controls red rice (Oryza sativa) in the Burdekin Valley of North Queensland

1990 ◽  
Vol 30 (6) ◽  
pp. 841 ◽  
Author(s):  
JE Barnes
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Weed Suppression ◽  
Red Rice ◽  
Whole Grain ◽  
Grain Number ◽  
Grain Moisture ◽  
Winter Crops ◽  
Low Levels ◽  
1000 Grain Weight

Molinate controlled red rice (Oryza sativa) in commercial rice (O. sativa cv. Starbonnet) giving an increasing response at rates of 3.6, 4.3, 5.0, 5.7, 6.4, 7.2, 7.9 kg a.i./ha in 1 summer and 2 winter crops. No crop injury was observed at any rate of molinate, and grain yield, grain moisture, 1000-grain weight, head counts, grain number per head, germination counts, percentage bran and head yield were not affected. In 2 experiments, the percentage of whole grain was not affected by the chemical but in 1 experiment percentage whole grain increased with the rate of chemical used. Molinate provides a substantial level of control of red rice in commercial rice but the response to the herbicide is variable. In some crops weed suppression up to about 50% control is all that can be achieved, but in other crops controls of >90% are achievable. With the low levels of infestation that usually occur in North Queensland these levels of control are acceptable.

scholarly journals COMBINING ABILITY EFFECTS AND PER-SE PERFORMANCES OF MORPHO REPRODUCTIVE TRAITS IN RICE (Oryza sativa L.)

2015 ◽  
Vol 26 (2) ◽  
pp. 23-32
Author(s):  
M. A. Islam ◽  
M. A. K. Mian ◽  
M. G. Rasul ◽  
Q. A. Khaliq ◽  
M. K. Bashar
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Plant Breeding ◽  
Plant Height ◽  
Combining Ability ◽  
Oryza Sativa L ◽  
Reproductive Traits ◽  
Negative Effects ◽  
Mean Values ◽  
Per Se

To study combining ability effects of developed CMS and restorer lines an experiment was carried out at the experimental farm, Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur during Aman 2011 and Boro 2011-12 following RCBD design through line × tester analysis in three replications. Five known CMS lines and sixteen developed Restorer lines were considered for through line × tester analysis. Among sixteen restorer lines, only four showed significant negative GCA effects for all these three traits for earliness. The estimated of gca effects of parents indicated that seven parents and sixteen crosses contributed highly significant negative effects for plant height which were responsible for dwarfing character. Fifteen crosses and eight parents showed significant negative sca estimates for days to first flowering and twenty crosses for maturity. Considering both SCA effects and per se performances for days to 1st flowering and maturity; the crosses of IR 58025A with RG-BU08-005R, RG-BU08-006R, RG-BU08-016R, RG-BU08-018R and RG-BU08-025R were found as the best specific combiner. Among 80 crosses fifty two crosses showed significant positive SCA effects along with above average perse performances for grain yield. Ten crosses of IR 58025A, seven crosses of GAN46A, fourteen crosses of IR 62829A, nine crosses of IR 68888A and ten crosses of BRRI 1A showed significant positive SCA effects along with mean values resulting significant positive SCA effects and above average perse performances with all five CMS lines for grain yield.

scholarly journals Combining ability studies for yield, associated traits and quality attributes in rice for South Gujarat (Oryza sativa L.)

2017 ◽  
Vol 9 (1) ◽  
pp. 60-67
Author(s):  
Navin Chander Gahtyari ◽  
P. I. Patel ◽  
Rakesh Choudhary ◽  
Sudhir Kumar ◽  
Naveen Kumar ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Plant Height ◽  
Combining Ability ◽  
Amylose Content ◽  
Oryza Sativa L ◽  
Block Design ◽  
General Combining Ability ◽  
Specific Combining Ability ◽  
Kernel Length

Line x tester analysis using a set of four females, ten males and their forty hybrids was carried out to esti-mate the general combining ability of parents and specific combining ability of hybrids for yield and ten other associ-ated components in rice (Oryza sativa L.) in a Randomized Block Design during Kharif 2011. GCA variances for females (s2f) were significant at 0.1% level of significance for plant height (40.8), no. of grains per panicle (505.9), grain yield per plant (29.1), test weight(17.9), straw yield per plant (61.3) and kernel L/B ratio (0.2) whereas specific combining ability (SCA) variances for f x m interactions were highly significant for all the characters. Non-additive gene action was prevalent in all characters (Range: 0.03 in amylose content to 0.88 in kernel length breadth ratio) except plant height (1.33) as evident by low GCA to SCA ratio. None of the parents were good general combiner for all traits, however, female IR-28 and male AMT-119 and PNR-546 were good general combiners for a maximum number of traits i.e. five traits out of eleven.. The general combining ability for grain yield per plant for female parent Gurjari (6.19) and NVSR-178 (5.29); and male parents AMT 119 (2.73) and PNR 546 (2.44) makes them a good choice for improving yields in a hybridization programme as these female and male parents are also having signifi-cant GCA effects for maximum number of yield associated traits i.e. four and five traits out of eleven for female and male parents respectively. A vis-à-vis comparison of top three specific combining ability crosses with their mean performance showed correlation and these crosses were having at least one good general combining ability parent.

Sign in / Sign up

Export Citation Format

Share Document