Our varieties and their characteristics

Namul is a medium-early soybean variety with a growing period of 105 days and a high productivy. The economic yield is 1.8-2.1 t/ha, the biological yield is 2.5-2.9 t/ha. The plant height is 52-57 cm. Plants are characterized by a moderate leaf area index, a semi-compact and erect shape, the presence of lateral branches, and a uniform distribution of pods. The lowest pod height is 11.0-14.0 cm; the stem width is 0.5-0.7 cm. Leaves are ternate, lance-shaped, and moderate in size. Perianth is violet; there are up to 8 lateral flowers per raceme. Pods are slightly curved with a narrow apex and grey indumentum. One plant produces up to 54.0% of pods with 3-4 seeds. Seeds are small, round, yellow, and glossy with yellow hilum. The 1000 kernel weight is 110-120 g. The oil content s 18.4-21.4%, the protein content is 39.5-41.4%. Variety Namul is resistant to Cercospora leaf blight and bacteriosis and has medium resistance to downy mildew and Septoria brown spot. The variety is used for the production of soybean sprouts.

The breeders of variety Namul are Butovets E.S., Emel’yanov A.N., Luk’yanchuk L.M., Strashnenko T.N., Dzhong Khiik, and Kim Beng Gu.

Soybean variety Briz is medium-maturing (113-117 days). The economic yield is 2.6-3.5 t/ha, the biological yield is 4.7 t/ha. The average height of plants is 82-86 cm. Plants are compact and erect with lateral branches and uniformly distributed pods. The lowest pod height is 14.0-17.1 cm; the stem width is 0.6-0.9 cm. One plant produces up to 44.5% of pods with 3-4 seeds. Flowers are white; the indumentum of plants and pods is light-grey. Seeds are round, yellow, and matt. Hilum is cream-coloured. The 1000 kernel weight is 185-195 g. Seeds contain 18.4-21.4% oil and 39.6-42.9% protein. Variety Briz has high immunity and tolerance to the main fungal diseases of the Russian Far-Eastern region.

The breeders of the variety are Butovets E.S., Luk’yanchuk L.M., Vasina E.A., Dega L.A., Khasbiullina O.I.

Soybean variety Sfera is medium-maturing (119-121 days). The economic yield is 2.8-3.1 t/ha. Plants are 70-75 cm in height and compact. The lowest pod height is 14.7-16.2 cm. Indumentum is thin and light-grey,  fully matured pods are dark-grey. Perianth is violet. Beans are round, yellow, and matt. Hilum is light in colour. The 1000 kernel weight is 180-190 g. Seeds contain 21.9-23.4 % oil and 37.4-38.1 % protein. Plants of variety Sfera are characterized by a high content of isoflavones and might be used in pharmacology. The variety has tolerance to the main fungal diseases of the Russian Far-Eastern region. Under the conditions of artificial infection, plants of variety Sfera were less susceptible to diseases than the standard (by 11-24 %).

The breeders are Vashchenko A.P., Mudrik N.V., Khasbiullina O.I., Dega L.A., Butovets E.S., and Luk’yanchuk L.M.

Soybean variety Musson is late-maturing (120-122 days) and belongs to the indeterminate growth type. The economic yield is 2.8-3.3 t/ha. The plant height is 100-110 cm. Plants are compact with pods uniformly distributed on the main stem. Having a moderate leaf area index and a compact shape, this variety can grow at different row spacings. The lancet shape of leaf blades facilitates a more efficient use of solar energy during the growing season. Flowers are white, the indumentum of plants and pods is light-grey. Seeds are oval and yellow with a light hilum. The 1000 kernel weight is 195-205 g. Seeds contain 20.2-20.7% oil and 40.3-41.2% protein. High immunity and tolerance to leaf forms of fungal diseases (including Septoria brown spot, Cercospora leaf blight, and downy mildew) eliminates the need for fungicides during cultivation.

The breeders of variety Musson are Vashchenko A.P., Mudrik N.V., Khasbiullina O.I., Dega L.A., and Butovets E.S.

Soybean variety Primorskaya 4 is medium-maturing; the growing period is up to 118 days. The economic yield is 2.8-3.1 t/ha. Plants are 75-80 cm on average with a substantial height of the lowest pods. Plants are characterized by a moderate leaf area index and a compact shape. Leaves consist of three oval leaflets. The indumentum of stems and pods is light; perianth is violet. The round shape of seeds minimizes mechanical damage during harvest. Seed coat is light and matt, hilum is grey with an eye. The 1000 kernel weight is 140-165 g. Seeds contain 20.9-22.0 % oil and 38.1-39.2 % protein.

The breeders of variety Primorskaya 4 are Vashchenko A.P., Mudrik N.V., Khasbiullina O.I., Dega L.A., and Butovets E.S.

Soybean variety Primorskaya 86 is late-maturing (up to 124 days). The economic yield ranges from 2.7 to 3.6 t/ha in different years. The 1000 kernel weight is 185-190 g. Plants are characterized by a high leaf area index. The indumentum of stems is thin and light-grey. Fully matured pods are dark-grey. Perianth is white. Seeds are yellow and matt. They have a prolate oval shape and a wide dark-brown hilum. Seeds contain 19.6-22.5 % oil and 37.9-39.2 % protein. Herbage contains 5.9 % oil, 20.9-21.9 % crude protein, and 42.0 mg of carotene per kg. Soybean variety Primorskaya 86 has a strong immunity and tolerance to the main fungal diseases of the Russian Far-Eastern region and is less susceptible to Septoria brown spot, Cercospora leaf blight, and downy mildew than the standard (by 11-24 %).

The breeders of variety Primorskaya 86 are Vashchenko A.P., Mudrik N.V., Khasbiullina O.I., Dega L.A., and Butovets E.S.

Soybean variety Primorskaya 96 is medium-maturing (up to 116 days) and has a high seed productivity. The economic yield is 2.7-3.1 t/ha. Seeds contain 20.1-22.7 % oil and 38.9-39.7 % protein. The 1000 kernel weight is 175-190 g. Plants belong to the indeterminate growth type, have a height of more than 180 cm, a compact shape and a moderate leaf area index. Perianth is white. Seeds are oval, light in colour, and glossy. Hilum and seed coat are of the same colour. The indumentum of stems and pods becomes light-grey after reaching full maturity. The substantial height of the lowest pods (12-14 cm) significantly reduces grain loss during harvest.

The breeders of variety Primorskaya 96 are Vashchenko A.P., Mudrik N.V., Khasbiullina O.I., Dega L.A., and Butovets E.S.

Mid-season variety Dachnyi is the result of a cross between potato varieties Nevskii x Volovetskii. Plants are moderate in length and semi-erect. The number of lateral stems is moderate. Leaves are moderate in size, green with moderate color intensity. Flowering time is short. Inflorescence is wide-spreading with moderate-sized flowers. Perianth is white and moderate in size. The number of potato fruits is low. Tubers are yellow, round or oval. Potato eyes are at a moderate depth. Potato pulp is white. Yield is 32.8-46.2 t/ha, marketable tubers comprise 86.5-91.8%, the weight of a marketable tuber is 90-150 g. The starch content is 14.6-15.8%. The variety is characterized by a high content of vitamin C (10.8-14.3 mg/100g). The variety is resistant to potato wart disease, fungal infections, including Rhizoctonia solani, and viruses, moderately resistant to potato blight. The pulp of potato tubers is tasty and starts to darken only in 24 hours after cooking.

The breeders are Volik N.M., Novoselov A.K., Novoselova L.A., Il’yashik T.M., and Voznyuk V.P.

Advantages: stable yield, tasty, high content of vitamin C.

Medium late variety Smak is the result of a cross between potato varieties Peterburgskii x Shurminskii. Plants are high and semi-erect. The number of lateral stems is high. Leaves are large and green with moderate color intensity. Flowering time is long, flowers are abundant. Inflorescence is wide-spreading with moderately-sized flowers. Perianth is white and moderate in size. Potato fruits are abundant. Tubers are yellow and round. Potato eyes are at a moderate or great depth. Potato pulp is yellow. Yield is 27.6-43.2 t/ha, marketable tubers comprise 88.1-95.3 %, the weight of a marketable tuber is 135-160 g. The starch content is 14.1-17.1 %. The variety is resistant to  potato wart disease, fungal infections, including Rhizoctonia solani, and viruses, moderately resistant to potato blight and Alternaria leaf spot. The pulp of potato tubers is tasty and starts to darken only in 24 hours after cooking.

The breeders are Volik N.M., Novoselov A.K., Novoselova L.A., Il’yashik T.M., Voznyuk V.P., and Kim I.V.

Advantages: high marketability of tubers, tasty, resistant to viral disease.

Medium late variety Kazachok is the result of a cross between potato varieties Yantar’ x Skoroplodnyi. Plants are high and semi-erect. The number of lateral stems is low. The size of leaves ranges from moderate to large. Leaves are grean with moderate color intensity. Flowering time is long, the number of flowers is moderate. Inflorescence is wide-spreading with moderate-sized flowers. Perianth is white and large. The number of potato fruits is moderate. Tubers are yellow and round. Potato eyes are small. Potato pulp is yellow. Yield is 31.4-33.9 t/ha, marketable tubers comprise 88.2-92.0%, the weight of a marketable tuber is 100-150g. The starch content is 14.6-14.8%. Storage losses comprise only 3.1-5.6% of tubers. The variety is resistant to potato wart disease, fungal infections, and viruses, moderately resistant to potato blight and Alternaria leaf spot. The pulp of potato tubers is tasty and does not darken after cooking.

The breeders are Volik N.M., Novoselov A.K., Novoselova L.A., Il’yashik T.M., Voznyuk V.P., and Kim I.V.

Advantages: high marketability, tasty, low storage losses, resistant to complex diseases.

Medium late variety Yantar’ is the result of a cross between potato varieties (Tondra x Priekul’skii rannii) x Fortuna. Plants are high and moderately spreading. The number of lateral stems is high. The size of leaves ranges from moderate to large. Flowering time is long, flowers are abundant. Perianth is white and moderate in size. Tubers are oval or round with a flat apex, yellow. Potato skin is smooth. Potato eyes are not numerous and at a moderate depth. Potato pulp is yellow. Sprouts are red-purple. The variety is high-yielding (32.0-28.0 t/ha), marketable tubers comprise 91.7-96.4 %, the weight of a marketable tuber is 125-130 g. The starch content is 11.7-15.5 %. The variety is resistant to potato wart disease, viral infections, moderately resistant to potato blight. The pulp of tubers is tasty and does not darken after cooking.

The breeders are Novoselov A.K., Volik N.M., Kislova V.V., Novoselova L.A., Chalyuk N.N., Voznyuk V.P.,  Pivnenko N.V., Kravets V.L., and Il’yashik T.M.

Advantages: high yield of marketable tubers, tasty, low storage losses, resistant to viral infections.

Spring soft wheat variety Primorskaya 40 (var. erythrospermum) is a mid-season variety with a growing period of 85-89 days. Culm is short (83-105 cm), hollow, and resistant to lodging. Plants are intermediate. Spikes are 7-10 cm in length, cylindrical, lax (15-16 spikelets), awned, and white. Glumes are without hairs; shoulder is broad and round; keel is prominent. Grains are red and egg-shaped with a moderate crease. The 1000 kernel weight is 32.0-36.0 g; protein content is 14.8-17.0%; the content of gluten in flour is 34-38%, the W index is 250-330; the volume of bread baked from 100 g of flour is 910 ml; the baking quality is 3.5. The variety is resistant to loose smut, stem and brown rust, moderately resistant to Fusarium ear blight. The evarage yield is 3.0-3.5 t/ha, the potential yield is 5.0-5.5 t/ha. Primorskaya 40 is characterized by resistance to lodging and grain shedding when fully mature.

The variety was included in the State Register of Protected Selection Achievements of the Russian Federation in 2004 (Patent No. 2321 dated May 19, 2004).

The breeders are Melanich Yu.V., Lokteva O.V., Smirnova Z.G., Moiseenko L.M., and Kalantaevskaya O.G.

Spring soft wheat variety Primorskaya 39 (var. lutescens) was created by converting winter variety Il’ichevka to the spring form with a subsequent individual selection. The growing period is 93-95 days. Spikes are 7-10 cm in length, prism-shaped, with a moderate density (18-20 spikelets), awnless, and white. Glumes are short (7-8 mm) and oval; beak is blunt and short; keel is prominent; shoulder is straight and broad. Grains are red, hard or semi-hard, round with a moderate crease. The 1000 kernel weight is 30-34 g. Plants are intermediate. Culm is hollow with a moderate width and height (83-104 cm). The variety is resistant to lodging, grain shedding, loose smut, moderately resistant to stem and brown rust, and Fusarium ear blight. Protein content in grain is 13.0-15.9%; the content of gluten is more than 36%; the W index is 300-380; the baking quality is 4.6. The average yield is 2.8-3.2 t/ha, the potential yield is 4.5-5.0 t/ha. The variety Primorskaya 39 was released in 1999.

The breeders are Melanich Yu.V., Smirnova Z.G., and Shadrina I.V.

Spring soft wheat variety Nikol’skaya (var. erythrospermum) is a mid-season variety with a growing period of 83-88 days. Plants are erect; culm is hollow with a moderate width and height (93 cm). Spikes are 8-10 cm in length, pyramid-shaped, with a moderate density (15-18 spikelets), awned, and yellowish white. Grains are red, hard or semi-hard, semiglobular with a moderate crease. The 1000 kernel weight is 32.7 g. Protein content in grains is 14.4-14.7%, the content of gluten is 24-29%, the W index is 253. The average yield is 3.4-4.2 t/ha, the potential yield is 5.8 t/ha. The variety is highly resistant to lodging, grain shedding and pre-harvest sprouting, resistant to loose smut and downey mildew, moderately sensitive to brown leaf rust and Fusarium ear blight, sensitive to Septoria blight.

The variety was included in the State Register of Protected Selection Achievements of the Russian Federation in 2020 (patent No.11204 dated July 24, 2020).

The breeders are  Bogdan P.M., Vakulov A.S., Klykov A.G., Konovalova I.V., and Moiseenko L.M.

Vostochnyi (var. nutans) is a mid-season spring barley variety with a growing period of 75-80 days. Plants are 66-75 cm, resistant to lodging, grain shedding, spike drooping, and pre-harvest sprouting. Spikes are yellow, two-rowed, slightly drooping, 8-10 cm in length, and with a moderate density. Awns are yellow, equal to the spike in length, positioned along spikes, slightly spreading, rough, and highly denticulate. Rachis has long hair. Grains are light yellow, oval, and large. The 1000 kernel weight is 35-41 g.

The variety is suitable for forage production. The protein content in grains is 11.6%, the starch content is 60%. The number of productive stems ranges from three to five. The economic yield varies from 3.4 to 5.0 t/ha in different years. The potential yield is up to 6.0 t/ha. The variety is relatively resistant to root rot, barley stripe, Fusarium ear blight, and loose smut.

The variety was included in the State Register of Protected Selection Achievements of the Russian Federation in 2014 (patent No. 6820 dated February 20, 2013).

The breeders are V.Yu. Semernina, L.M. Moiseenko, O.G. Kalantaevskaya, A.G. Klykov, G.A. Murugova, R.V. Timoshinov, and P.M. Bogdan.

Primorets (var. nutans) is a mid-season spring barley variety with a growing period of 75-80 days. Spikes are yellow, cylindrical, with a length of 7.5-9.2 and a moderate density. Awns are rough and highly denticulate. Grains are light yellow, oval, and moderate in size. The 1000 kernel weight is 38.2 g. Plants are straight; culm is hollow, with a moderate width and height (82 cm), resistant to lodging.

The variety is suitable for forage production. The protein content in grain is 10.7-12.6%; the percentage of husks is 8.0-8.7%. Primorets is resistant to grain shedding and less susceptible to barley stripe and net blotch, loose smut than variety Vostochnyi (the standard). The evarage yield is 3.0-4.6 t/ha, the potential yield is 6.1 t/ha.

The variety was included in the State Register of Protected Selection Achievements of the Russian Federation in 2021 (patent No. 10990 dated February 10, 2020).

The breeders are L.M. Moiseenko, A.G. Klykov, G.A. Murugova, P.M. Bogdan, and N.A. Pavlova.

Buckwheat variety Izumrud belongs to the subspecies vulgare (var. alata) and the late maturing ecological group of Primorsky kray. The growing period is 70-85 days. The plant height is 90-100 cm. Stems are strong with a width of 1.0 cm. The lower leaves are petiolate and heart-shaped, the upper leaves are sessile, arrow-shaped, and emerald green. Flowers are large and pale pink; seeds are large and dark brown with moderately developed wings.

The 1000 kernel weight is 32-35 g. The content of protein and oil in grains is 13.6% and 3.2%, respectively. The percentage of husks is 23-24%. The grain size uniformity is 85%, the cereal yield is 78-79%. The variety is highly resistant to lodging and grain shedding, moderately resistant to Fusarium and Ascochyta blight, Cercospora leaf spot. Variety Izumrud is highly productive but sensitive to growing conditions. The average yield is 1.8-2.0 t/ha, the potential yield is 3.5 t/ha.

The variety was included in the State Register of Protected Selection Achievements of the Russian Federation in 2004 (patent No. 2276 dated April 15, 2004).

The breeders are Moiseenko L.M., Pedochenko V.F., Ugnivenko Z.I., and Rozhnova M.G.

Buckwheat variety Ussurochka (Primorskaya 426) was created by the methods of hybridization and tissue culture with a subsequent negative selection from the complex population (Izumrud × Chernoplodnaya) × (Izumrud × Kitavase in vitro on a selective medium with copper ions). The growing period is 70-75 days; yield is 1.5-1.8 t/ha, the cereal yield is 80-82%; the 1000 kernel weight is 30-33 g, the oil content is 1.8%. Grains are black or dark brown. The rutin content in cereals is 9.7 mg/ 100 g. The variety is resistant to lodging; plants have thick first internodes (0.4-0.6 cm).

The variety was included in the State Register of Protected Selection Achievements of the Russian Federation in 2020 (patent No. 11220 dated September 4, 2020).

The breeders are Klykov A.G., Moiseenko L.M., Pedochenko V.F., Barsukova E.N., and Parskaya N.S.

Rice variety Khankaiskii 52 belongs to the subspecies indica Kato (var. mutica vas.). The plant height is 60-80cm. Stem is erect and strong with a width ranging from medium to thin (2-3 mm), resistant to lodging. The anthocyanin coloration of nodes is absent. Leaves are erect, narrow, and moderately green with a low amount of leaf hairs. Flag leaf is slightly curved. Panicle is slightly spreading, 13-15 cm in length. The curvature of the main axis is moderate. The number of grains per panicle ranges from 90 to 100. The panicle density is 5.5-6.8; the productivity of one plant is 2.2-2.5 g. Floral glume is straw-coloured. The grain index is 3.1-3.2. Grains are moderate in size, prolonged, narrow, spindle-shaped, and creamy white; the 1000 kernel weight is 28.5-30.0 g. The variety is characterized by a moderate yield of 4.5 t/ha, a growing period of 108-112 days, and a high germination rate and seed viability. The variety Khankaiskii 52 is resistant to low temperature during the germination period, grain shedding, and to the Magnaporthe grisea population of Primorsky kray. The technological properties and cereal quality are high: the grain hardness is 95-97%, the cereal yield is 70-74%.

The variety was included in the State Register of Protected Selection Achievements of the Russian Federation in 2000 (Patent No. 0541 dated February 18, 2000).

The authors of the variety are Kovalevskaya V.A., Bondarina L.A., and Kovalevskii A.N.

Rice variety Kaskad belongs to the subspecies japonica (var. italica Alef). The plant height is  68-78 cm. Stem is thick and strong. The anthocyanin coloration of nodes is absent. Leaves are light green with a moderate width and a low amount of leaf hairs. Panicle is compact with a length of 14-16 cm. The number of grains per panicle is 80-95; the panicle density is 6.9. Floral glume is dark cream in colour with a moderate amount of hairs. Grains are white and elongated. The 1000 kernel weight is 31.8 g; the grain index is 2.3. The variety is highly productive, ultra-early maturing; the growing period is 70-85 days. Variety Kaskad is characterized by high resistance to low temperatures, lodging, grain shedding, and rice blast. The productivity per plant is high (10-12 g) due to high-yielding lateral tillers. The nuber of productive tillers is 4.2; the average yield is 5.4-5.9 t/ha; the potential yield is 5.5-6.0 t/ha. Technological properties and cereal quality are high: the grain hardness is 84%, the cereal yield is 72%, the protein content is 8.6%, and the percentage of rice hulls is 18.4%.

The variety was included in the State Register of Protected Selection Achievements of the Russian Federation in 2014 (Patent No.7284 dated February 25, 2014).

The breeders of the variety are Kovalevskaya V.A., Abakumets I.G., Lyubitskaya A.V., and Sunitskaya T.V.

Rice variety Almaz belongs to the subspecies japonica (var.italica Alef). Plants have a short erect stem (60-75 cm). Stem is thin, hollow, and strong. Leaves are green and have a moderate width. Panicle is vertical and only slightly spreading (13-15 cm), the number of grains per panicle ranges from 67 to 75. Grains are small, round, and white. The 1000 kernel weight is 27.6 g, the grain index is 1.7. The variety is high yielding, mid-season, resistant to lodging, grain shedding, rice blast, and low temperatures. The growing period is 105-112 days. The common technology of rice cultivation is suitable for this variety, both deep planting and broadcasting are possible, late harvest is acceptable. The productivity of one plant is 3.6 g, yield is 5.2-6.0 t/ha. Technological properties and cereal quality are high: the grain hardness is 97.6%, the cereal yield is 72%, the protein content is 8.3%, and the percentage of rice hulls is 17.4%.

The breeders of rice variety Almaz are Kovalevskaya V.A., and Abakumets I.G.

Rice variety Lugovoy belongs to the subspecies japonica (var. italica Alef). The variety is high yielding and early maturing. The growing period ranges from 105 to 111 days. Plants have a short stem with a length of 60-77 cm and a moderate width, the number of productive stems is 2.1. Panicle is broadly spreading, 17-19 cm in length; the number of grains per panicle is 96-102. The productivity per plant is 2.5-2.8 g. Floral glume is yellowish; awns are not present. Grains are medium in size, elongated; the grain index is 2.2. The 1000 kernel weight is 28-29 g. The economic yield is 3.5-4.5 t/ha, the potential yield is 5.5-6.0 t/ha. The variety is highly adaptive to the conditions of the Russian Far Eastern region and resistant to lodging, grain shedding, and rice blast. Technological properties are high: the grain hardness is 72%, the protein content is 8.2%, and the percentage of rice hulls is 17.5%.

The breeders of rice variety Lugovoy are Kovalevskaya V.A., Glinskaya L.A., and Luk’yanovich T.I.

Rice variety Dolinnyi belongs to the subspecies japonica (var. italica Alef). Plants have a short strong stem with a length of 73-75 cm and a moderate width. The anthocyanin coloration of nodes is absent. Leaves are green with a low amount of leaf hairs. Panicle is slightly spreading (14-16 cm); the number of grains per panicle is 80-91; the panicle density is 5.5. Floral glume is light-yellow with a moderate amount of hairs. Grains are white; moderate in size, and slightly elongated.

The 1000 kernel weight is 30.4 g; the grain index is 2.2. The variety is high yielding, early maturing, resistant to lodging, grain shedding, rice blast, and low temperatures. The growing period is 92-102 days. Late harvest is acceptable. The productivity is high (4.0 g); yield is 4.5-5.1 t/ha. Technological properties and cereal quality are high: the grain hardness is 97.1 %, the cereal yield is 72 %, the protein content is 8.2%, and the percentage of rice hulls is 16.9%.

The breeders of rice variety Dolinnyi are Kovalevskaya V.A. and Abakumets I.G.

Rice variety Manchzhur belongs to the subspecies japonica Kato (var. italica Alef). Stem is thin, hollow, and strong. Leaves are dark-green with a low amount of leaf hairs; the leaf width is moderate. Grains are white, small, and round. The 1000 kernel weight is 30.2 g. The variety is high-yielding and mid-season; the growing period is 103 days. The variety is resistant to lodging, grain shedding, rice blast, and low temperatures. The common technology of rice cultivation is suitable for this variety, both deep planting and broadcasting are possible, late harvest is acceptable. The productivity per plant is high (2.2 g); yield is 5.58 t/ha. Technological properties and cereal quality are high: the grain hardness is 99.8 %, the cereal yield is 76.8 %, the protein content is 8.3%, and the percentage of rice hulls is 16.6%.

The breeders are Ashikhmina E.V., Klimenkova T.G., Mikhalik T.A., and Starikova Ya.A.

Yuzhanka is a medium late maize variety recommended for silage production. The growing period is 134-140 days. The grain yield ranges from 6.37 to 72.0 t/ha in different years. The herbage yield is 0.5 t/ha on average.

The plant height is 260-325 cm. The ear height is 98-130 cm. The number of ears per plant is 1.5-2. Ears are cylindrical or conical, 16-23 cm in length; the number of rows per ear is 12-18; the number of grains per row is 31-49. Cob is white. Grains are large, white or yellowish white. The 1000 kernel weight is 349.4 g.

The variety was included in the State Register of Protected Selection Achievements of the Russian Federation in 2011 (patent No. 6577 dated October 9, 2012).

The breeders are N.A. Kraskovskaya, E.D. Shkorina, and N.N. Bykova.

Hybrid maize population Slavyanka was created through the hybridization of local variety accessions. The plant height is 210-260 cm. There are from 14 to 17 leaves on the main stalk. The number of ears per plant is 1.0-1.3. The ear height is 67-82 cm. Ears are conical or cylindrical, 16-20 cm in length. The number of rows per ear is 12-18; the number of grains per row is 30-45. Cob is either white, or pink, or red. The grain yield after threshing is 76-82%. The 1000 kernel weight is 284-310 g. Grains are yellow, yellowish white or yellow-orange. Hybrid maize population Slavyanka belongs to the medium early maturity group with a growing period of 106-112 days. The evarage grain yield is 4.32 t/ha.

Slavyanka was included in the State Register of Protected Selection Achievements of the Russian Federation and admitted to use in the Far Eastern region in 2002.

The breeders are N.A. Kraskovskaya, A.I. Maslovets, T.D. Martynyuk, S.V. Vityutnev, and M.V. Grishina.

Our scientists from the Laboratory of Agricultural Biotechnology created a new stevia variety Primorskaya Slastyona, which is well-adapted to the environmental and climatic conditions of Primorsky krai. This variety was included in the State Register of Selection Achievements admitted to use in the Russian Federation in 2016. Plants of the new variety have large leaves and a thick stem. They are resistant to lodging during heavy rains with strong winds, to diseases, and leaf loss. Variety Primorskaya Slastyona was created using the methods of individual selection and micropropagation. The leaf area index is 71.0 %, the branchiness is 71.7%. The yield of green leaves is 3.79 t/ha, the yield of dry leaf is 1.16 t/ha. This exceedes the standard (variety Ramonskaya Slastyona) by 0.37 and 0.28 t/ha, respectively. Leaves contain 13.6 % glycosides and 67.5 mg of vitamin C per 100 grams. Stevia plants reach maturity within 70 days.