Ozark is a high-yielding, early maturing, and traditional stature long-grain rice cultivar released by the University of Arkansas System Division of Agriculture in 2022. The line’s pedigree is ‘Diamond’/‘LaKast’. Ozark has an outstanding grain yield, good milling yields, and grain quality. The average plant height of Ozark is 44 inches and the variety is moderately susceptible to lodging. The maturity of Ozark has averaged 88 days from emergence to 50% heading. Ozark was rated susceptible to leaf blast, neck blast, sheath blight, and bacterial panicle blight.

Breeder and foundation seed of Ozark will be maintained by the University of Arkansas System Division of Agriculture, Rice Research and Extension Center, 2900 Hwy 130 E., Stuttgart, AR 72160. PVP and a utility patent are pending for the Ozark cultivar.

Titan is a high yielding, very early maturing, and short stature medium-grain rice developed at the University of Arkansas Rice Research and Extension Center in Stuttgart, Arkansas.  Titan has outstanding yield potential, good milling and grain quality, and improved lodging and blast resistance compared with the current commercial medium-grain cultivar Jupiter.

Titan is a semidwarf plant type and is moderately susceptible to lodging.  It averaged 97 cm in height in yield tests across Mid-South and is slightly taller than the 95 cm of Jupiter.  However, Titan matures much earlier than Jupiter. The average number of days from emergence to 50% heading is 79 as compared with 86 of Jupiter. Titan appeared susceptible to sheath blight and moderately susceptible to bacterial panicle blight, false smut, kernel smut, rice blast and lodging.

The flag leaf of Titan is longer than that of Jupiter and well above the panicle canopy at maturity.  The leaves, lemma, and palea are glabrous.  The spikelet is straw colored.  The apiculus is red or purple at heading and the color fades as grains approach maturity.  The grain is non-aromatic.

Titan has the typical medium-grain shape, and its kernels appear much larger and longer (average seed size of 27.6 gms/1000 seeds) than that of Jupiter. The length and width (mm), length/width ratio, and kernel weight (mg) of milled whole kernels of Titan were 5.91, 2.68, 2.21, and 23.20 for Titan as compared with 5.57, 2.66, 2.09, and 21.03 for Jupiter, respectively. Average apparent amylose content of Titan is 150 g kg^-1 compared with 156 g kg^-1 of Jupiter. Titan also has a low gelatinization temperature of 62.8 degrees C similar to the 62.7 degrees C of Jupiter. Furthermore, Titan and Jupiter share the similar starch Rapid Visco Analyser profiles. These results indicate that Titan has typical U.S. medium-grain rice cooking characteristics.

The short-grain rice cultivar 1099 was developed at the University of Arkansas System Division of Agriculture’s Rice Research and Extension Center in Stuttgart, Arkansas. The line originated from a cross made with the famed Japanese short grain rice cultivar Koshihikari, which is a high quality Japanese cultivar in the world collection with low yield potential and poor straw strength. 1099 is similar in maturity to its parent Koshihikari, and has greater straw strength with 1099 rated a 3 versus Koshihikari at an 8. 1099 averages 105 cm in plant height. Over a 6-year span, 1099 average rough rice yields were about 1400 lbs/acre more than Koshihikari. Milling yields over a 6-year period averaged 643:722, 625:721 for 1099 and Koshihikari, respectively.

1099 is susceptible to rice blast and sheath blight. Plants of 1099 have erect culms, green erect leaves, and glabrous lemma, palea, and leaf blades. The lemma and palea are straw colored with straw colored apiculi, and some short tip awns may be found on the lemma under high fertility.  Kernels are similar in size to those of Koshihikari. Individual milled kernel weights of 1099 and Koshihikari, averaged 17.7 and 18.3 mg, respectively, over a 6-year period in the ARPT.

Koshihikari is a premium-quality short-grain Japanese rice cultivar which is desirable as a speciality rice. When compared to Southern medium-grain rice, this rice has a silky smooth texture, glossy appearance, mild aroma, sweet taste, poor agronomic characteristics and low yield potential. 1099 compares favorably with good quality Japanese cultivars.  In an independent test in Japan, 1099 rated a 76 on a Japanese taste testing machine compared to Atitakomachi in the same test which rated a 74 (Koshihikari was not included in their test); the higher the number the better the taste.  They rated the sample lower in other areas and were surprised by the good ratings from the machine.

The endosperm of 1099 is non-glutinous, non-aromatic, and covered by a light brown pericarp. Rice quality parameters indicate that 1099 has short-grain cooking quality characteristics. 1099 has an average apparent starch amylose content of 134 g kg^-1 and a low gelatinization temperature (< 70 degrees C), as indicated by an average alkali spreading reaction of 7.0. 1099, like Koshihikari, has the CT 17 allele associated with apparent amylose content. 

Taurus is a high-yielding, very early maturing, and short stature medium-grain rice cultivar released by the University of Arkansas System Division of Agriculture in 2023. It was originally selected from the cross ‘Rico 1’/‘Bengal’//‘RU0602162’/‘RU0502031’. In addition to the good milling and grain quality, Taurus has a semi-dwarf plant type, averaging 36 inches in height, and is moderately susceptible to lodging. Taurus matures 3 days earlier than Jupiter and 3 later than Titan. The maturity of Taurus has averaged 86 days from emergence to 50% heading. Taurus was rated is moderately susceptible to leaf blast, susceptible to sheath blight, and bacterial panicle blight.

Breeder and foundation seed of Taurus will be maintained by the University of Arkansas Division of Agriculture Rice Research and Extension Center, 2900 Hwy 130 E., Stuttgart, AR 72160.  PVP and a utility patent are pending for the Taurus cultivar.

The new aromatic release, ARoma 22, is listed in the order form for 2023. You will find a Quick Facts sheet with agronomic information about ARoma 22 rice on the last page of the order form packet.

Seed supply is limited for the 2022 growing season and will be sold to aromatic rice growers in Arkansas only in 2022.

• Straw strength rates 1 on a scale of 0 to 5, where 0 = very strong straw and 5 = very weak straw
• Excellent rough rice yields with good milling yields: 2020 ARPT average across 5 locations, ARoma 22 yield mean and milling yield was 167 bu/a and 64:71 compared to ARoma 17 yield and milling yield at 167 bu/a and 65:71
• Chemical analysis of 2AP of ARoma 22 and ARoma 17 results were 431 ng/g and 264 ng/g, respectively
• Maturity is similar to ARoma 17
• Plant height: ARoma 22 is taller (43 inches) than ARoma 17 (41 inches)
• Grain weight, width, and thickness is similar to ARoma 17 and the grain length is longer than ARoma 17
• N fertilizer requirements: standard UADA (University of Arkansas Division of Agriculture) CES recommendation
• Blast: moderately susceptible in Arkansas conditions
• Sheath blight: moderately susceptible, similar to ARoma 17 and Taggart
• Bacterial Panicle Blight: moderately susceptible, similar to ARoma 17 and Taggart
• False smut: susceptible, similar to Jazzman-2
• Aromatic with typical southern U.S. long-grain cooking quality

Ozark is a high-yielding, early maturing, and traditional stature long-grain rice cultivar released by the University of Arkansas System Division of Agriculture in 2022. The line’s pedigree is ‘Diamond’/‘LaKast’. Ozark has an outstanding grain yield, good milling yields, and grain quality. The average plant height of Ozark is 44 inches and the variety is moderately susceptible to lodging. The maturity of Ozark has averaged 88 days from emergence to 50% heading. Ozark was rated susceptible to leaf blast, neck blast, sheath blight, and bacterial panicle blight.

Breeder and foundation seed of Ozark will be maintained by the University of Arkansas System Division of Agriculture, Rice Research and Extension Center, 2900 Hwy 130 E., Stuttgart, AR 72160. PVP and a utility patent are pending for the Ozark cultivar.

Titan is a high yielding, very early maturing, and short stature medium-grain rice developed at the University of Arkansas Rice Research and Extension Center in Stuttgart, Arkansas.  Titan has outstanding yield potential, good milling and grain quality, and improved lodging and blast resistance compared with the current commercial medium-grain cultivar Jupiter.

Titan is a semidwarf plant type and is moderately susceptible to lodging.  It averaged 97 cm in height in yield tests across Mid-South and is slightly taller than the 95 cm of Jupiter.  However, Titan matures much earlier than Jupiter. The average number of days from emergence to 50% heading is 79 as compared with 86 of Jupiter. Titan appeared susceptible to sheath blight and moderately susceptible to bacterial panicle blight, false smut, kernel smut, rice blast and lodging.

The flag leaf of Titan is longer than that of Jupiter and well above the panicle canopy at maturity.  The leaves, lemma, and palea are glabrous.  The spikelet is straw colored.  The apiculus is red or purple at heading and the color fades as grains approach maturity.  The grain is non-aromatic.

Titan has the typical medium-grain shape, and its kernels appear much larger and longer (average seed size of 27.6 gms/1000 seeds) than that of Jupiter. The length and width (mm), length/width ratio, and kernel weight (mg) of milled whole kernels of Titan were 5.91, 2.68, 2.21, and 23.20 for Titan as compared with 5.57, 2.66, 2.09, and 21.03 for Jupiter, respectively. Average apparent amylose content of Titan is 150 g kg^-1 compared with 156 g kg^-1 of Jupiter. Titan also has a low gelatinization temperature of 62.8 degrees C similar to the 62.7 degrees C of Jupiter. Furthermore, Titan and Jupiter share the similar starch Rapid Visco Analyser profiles. These results indicate that Titan has typical U.S. medium-grain rice cooking characteristics.

Jupiter is a high-yielding, early-maturing, and short stature medium-grain rice cultivar that was developed in 2004, by the LSU AgCenter in cooperation with the Arkansas Agricultural Experiment Station, the Mississippi Agricultural and Forestry Experiment Station, and the Texas Agricultural Experiment Station. Jupiter has excellent grain yield and good milling results.

Under drill seeding conditions, the average plant height of Jupiter is 94 cm, while the average number of days from emergence to 50% heading for Jupiter was 85 days. The flag leaf of Jupiter is shorter and wider than that of Bengal. The plants display a dark green leaf color under optimum fertilization. The leaf surface, lemma, and palea are glabrous. Some pubescence has been observed on leaf margins. The spikelet is straw colored, and very short awns have been observed under certain environmental conditions. The apiculus is purple. The endosperm is non-aromatic, non-glutinous, and has a light brown pericarp.

Jupiter is susceptible to lodging, straighthead and sheath blight, rating a 5.7 on a disease scale of 0 = immune, 9 = highly susceptible. Results for leaf blast indicated that Jupiter is resistant to race IB-54 but moderately susceptible to susceptible to races IC-17, IB-49, IG-1, and IE-1K. Jupiter has a good field resistant to rotten neck blast. Jupiter showed moderate resistance to panicle blight and black sheath rot. Jupiter rated a 2.5 for resistance to brown spot and 0.8 for resistance to narrow brown leaf spot, both earning a moderate resistance rating. Jupiter is moderately susceptible to kernel smut and false smut.

Jupiter has typical U.S. medium-grain rice cooking characteristics.  Brown rice dimensions for Jupiter were 5.87 mm L, 2.82 mm W, thickness 1.97 mm, L/W 2.08, and kernel weight 22.5 mg compared to 6.43, 2.66, 1.96, 2.42, and 24.1 for Bengal. Average apparent amylose content of Jupiter is 145 g kg. Jupiter has a low gelatinization temperature (64-68 degrees C), as indicated by an average alkali spreading value of 6.2.

The short-grain rice cultivar 1099 was developed at the University of Arkansas System Division of Agriculture’s Rice Research and Extension Center in Stuttgart, Arkansas. The line originated from a cross made with the famed Japanese short grain rice cultivar Koshihikari, which is a high quality Japanese cultivar in the world collection with low yield potential and poor straw strength. 1099 is similar in maturity to its parent Koshihikari, and has greater straw strength with 1099 rated a 3 versus Koshihikari at an 8. 1099 averages 105 cm in plant height. Over a 6-year span, 1099 average rough rice yields were about 1400 lbs/acre more than Koshihikari. Milling yields over a 6-year period averaged 643:722, 625:721 for 1099 and Koshihikari, respectively.

1099 is susceptible to rice blast and sheath blight. Plants of 1099 have erect culms, green erect leaves, and glabrous lemma, palea, and leaf blades. The lemma and palea are straw colored with straw colored apiculi, and some short tip awns may be found on the lemma under high fertility.  Kernels are similar in size to those of Koshihikari. Individual milled kernel weights of 1099 and Koshihikari, averaged 17.7 and 18.3 mg, respectively, over a 6-year period in the ARPT.

Koshihikari is a premium-quality short-grain Japanese rice cultivar which is desirable as a speciality rice. When compared to Southern medium-grain rice, this rice has a silky smooth texture, glossy appearance, mild aroma, sweet taste, poor agronomic characteristics and low yield potential. 1099 compares favorably with good quality Japanese cultivars.  In an independent test in Japan, 1099 rated a 76 on a Japanese taste testing machine compared to Atitakomachi in the same test which rated a 74 (Koshihikari was not included in their test); the higher the number the better the taste.  They rated the sample lower in other areas and were surprised by the good ratings from the machine.

The endosperm of 1099 is non-glutinous, non-aromatic, and covered by a light brown pericarp. Rice quality parameters indicate that 1099 has short-grain cooking quality characteristics. 1099 has an average apparent starch amylose content of 134 g kg^-1 and a low gelatinization temperature (< 70 degrees C), as indicated by an average alkali spreading reaction of 7.0. 1099, like Koshihikari, has the CT 17 allele associated with apparent amylose content.