Paspalum guenoarum Arech. ecótipo “Azulão” apresenta tolerância a geadas e estiagens e boa produção e distribuição de forragem ao longo do ano. O objetivo deste estudo foi avaliar o efeito de regimes de corte na produção e qualidade de sementes de Paspalum guenoarum ecótipo “Azulão”. O trabalho foi realizado na EEA-UFRGS, Eldorado do Sul. O Delineamento Experimental utilizado foi Blocos Completamente Casualizados, com quatro tratamentos e quatro repetições. As parcelas tinham 7,2 m² (3,6m x 2m) e plantas em linhas espaçadas 0,4m. As variáveis estudadas foram número total de perfilhos/planta, número de perfilhos vegetativos/planta e número de perfilhos florescidos/planta através de avaliações semanais não destrutivas. O número de racemos/inflorescência, número de sementes/inflorescência, número de sementes/racemo, peso de mil sementes, peso de sementes/inflorescência, rendimento de sementes/área, percentagem de germinação e produção de matéria seca foram obtidos através de amostragens destrutivas. Os dados foram submetidas à análise de variância, em caso de diferença significativa, as médias comparadas utilizando o teste de Tukey a 5% de significância. A análise de variância indicou efeito significativo dos regime de corte para todas as variáveis analisadas. Houve decréscimo no rendimento de sementes e atraso na floração quando foram realizados dois ou mais cortes. Três cortes reduziram drasticamente o florescimento e produção de sementes, sendo as sementes formadas em época desfavorável. Os componentes que mais influenciaram o rendimento de sementes foram o número de sementes por inflorescência e número de sementes por racemo. Os maiores rendimentos de sementes foram obtidos com os tratamentos zero cortes (850 kg/ha) e um corte (794 kg/ha) não diferindo estatisticamente entre si. O mesmo foi observado no rendimento de sementes puras viáveis, com 555 kg/ha para zero cortes e 505 kg/ha para um corte. A maior porcentagem de germinação foi obtida nos tratamentos zero (64 %) e um corte (60 %). / Paspalum guenoarum Arech., Azulão ecotype, is frost and drought tolerant and has good forage production. The aim of this study was to evaluate different cutting schemes effects on seed quality and production. The experiment was carried out in the EEA/UFRGS (Federal University of Rio Grande do Sul), Eldorado do Sul. The experimental design was completely randomized blocks (4 treatments), with four replications. The plots area was 7,2 m² (3,6m x 2m). Also the following variables were evaluated: total number of tillers/plant, number of vegetative tillers/plant, number of reproductive tillers/plant by non destructive weekly samplings. The number of racemes/inflorescence, number of seeds/raceme, weight of 1000 seeds, weight of seed/inflorescence, seed/area yield, seed germination in laboratory and dry matter yield. Data were subjected to variance analysis and means were compared by Tukey test (5%) in case of significant difference. The variance analysis showed a significant effect of cutting schemes for all evaluated variables. There was decrease in seed production and flowering delay when two or three cuttings were permormed. When three cuttings were performed there was serious decrease in seed productions, and the seeds development occurred in unfavorable period. Seeds production was influenced by the number of racemes/inflorescence and number of seeds/raceme. Zero cutting and one cutting presented the higher seed yield, 850 kg/ha and 794 kg/ha respectively. The higher germination was 64% (without cutting) and 60% (one cutting).

Paspalum guenoarum Arech. ecótipo “Azulão” apresenta tolerância a geadas e estiagens e boa produção e distribuição de forragem ao longo do ano. O objetivo deste estudo foi avaliar o efeito de regimes de corte na produção e qualidade de sementes de Paspalum guenoarum ecótipo “Azulão”. O trabalho foi realizado na EEA-UFRGS, Eldorado do Sul. O Delineamento Experimental utilizado foi Blocos Completamente Casualizados, com quatro tratamentos e quatro repetições. As parcelas tinham 7,2 m² (3,6m x 2m) e plantas em linhas espaçadas 0,4m. As variáveis estudadas foram número total de perfilhos/planta, número de perfilhos vegetativos/planta e número de perfilhos florescidos/planta através de avaliações semanais não destrutivas. O número de racemos/inflorescência, número de sementes/inflorescência, número de sementes/racemo, peso de mil sementes, peso de sementes/inflorescência, rendimento de sementes/área, percentagem de germinação e produção de matéria seca foram obtidos através de amostragens destrutivas. Os dados foram submetidas à análise de variância, em caso de diferença significativa, as médias comparadas utilizando o teste de Tukey a 5% de significância. A análise de variância indicou efeito significativo dos regime de corte para todas as variáveis analisadas. Houve decréscimo no rendimento de sementes e atraso na floração quando foram realizados dois ou mais cortes. Três cortes reduziram drasticamente o florescimento e produção de sementes, sendo as sementes formadas em época desfavorável. Os componentes que mais influenciaram o rendimento de sementes foram o número de sementes por inflorescência e número de sementes por racemo. Os maiores rendimentos de sementes foram obtidos com os tratamentos zero cortes (850 kg/ha) e um corte (794 kg/ha) não diferindo estatisticamente entre si. O mesmo foi observado no rendimento de sementes puras viáveis, com 555 kg/ha para zero cortes e 505 kg/ha para um corte. A maior porcentagem de germinação foi obtida nos tratamentos zero (64 %) e um corte (60 %). / Paspalum guenoarum Arech., Azulão ecotype, is frost and drought tolerant and has good forage production. The aim of this study was to evaluate different cutting schemes effects on seed quality and production. The experiment was carried out in the EEA/UFRGS (Federal University of Rio Grande do Sul), Eldorado do Sul. The experimental design was completely randomized blocks (4 treatments), with four replications. The plots area was 7,2 m² (3,6m x 2m). Also the following variables were evaluated: total number of tillers/plant, number of vegetative tillers/plant, number of reproductive tillers/plant by non destructive weekly samplings. The number of racemes/inflorescence, number of seeds/raceme, weight of 1000 seeds, weight of seed/inflorescence, seed/area yield, seed germination in laboratory and dry matter yield. Data were subjected to variance analysis and means were compared by Tukey test (5%) in case of significant difference. The variance analysis showed a significant effect of cutting schemes for all evaluated variables. There was decrease in seed production and flowering delay when two or three cuttings were permormed. When three cuttings were performed there was serious decrease in seed productions, and the seeds development occurred in unfavorable period. Seeds production was influenced by the number of racemes/inflorescence and number of seeds/raceme. Zero cutting and one cutting presented the higher seed yield, 850 kg/ha and 794 kg/ha respectively. The higher germination was 64% (without cutting) and 60% (one cutting).

Paspalum guenoarum Arech. ecótipo “Azulão” apresenta tolerância a geadas e estiagens e boa produção e distribuição de forragem ao longo do ano. O objetivo deste estudo foi avaliar o efeito de regimes de corte na produção e qualidade de sementes de Paspalum guenoarum ecótipo “Azulão”. O trabalho foi realizado na EEA-UFRGS, Eldorado do Sul. O Delineamento Experimental utilizado foi Blocos Completamente Casualizados, com quatro tratamentos e quatro repetições. As parcelas tinham 7,2 m² (3,6m x 2m) e plantas em linhas espaçadas 0,4m. As variáveis estudadas foram número total de perfilhos/planta, número de perfilhos vegetativos/planta e número de perfilhos florescidos/planta através de avaliações semanais não destrutivas. O número de racemos/inflorescência, número de sementes/inflorescência, número de sementes/racemo, peso de mil sementes, peso de sementes/inflorescência, rendimento de sementes/área, percentagem de germinação e produção de matéria seca foram obtidos através de amostragens destrutivas. Os dados foram submetidas à análise de variância, em caso de diferença significativa, as médias comparadas utilizando o teste de Tukey a 5% de significância. A análise de variância indicou efeito significativo dos regime de corte para todas as variáveis analisadas. Houve decréscimo no rendimento de sementes e atraso na floração quando foram realizados dois ou mais cortes. Três cortes reduziram drasticamente o florescimento e produção de sementes, sendo as sementes formadas em época desfavorável. Os componentes que mais influenciaram o rendimento de sementes foram o número de sementes por inflorescência e número de sementes por racemo. Os maiores rendimentos de sementes foram obtidos com os tratamentos zero cortes (850 kg/ha) e um corte (794 kg/ha) não diferindo estatisticamente entre si. O mesmo foi observado no rendimento de sementes puras viáveis, com 555 kg/ha para zero cortes e 505 kg/ha para um corte. A maior porcentagem de germinação foi obtida nos tratamentos zero (64 %) e um corte (60 %). / Paspalum guenoarum Arech., Azulão ecotype, is frost and drought tolerant and has good forage production. The aim of this study was to evaluate different cutting schemes effects on seed quality and production. The experiment was carried out in the EEA/UFRGS (Federal University of Rio Grande do Sul), Eldorado do Sul. The experimental design was completely randomized blocks (4 treatments), with four replications. The plots area was 7,2 m² (3,6m x 2m). Also the following variables were evaluated: total number of tillers/plant, number of vegetative tillers/plant, number of reproductive tillers/plant by non destructive weekly samplings. The number of racemes/inflorescence, number of seeds/raceme, weight of 1000 seeds, weight of seed/inflorescence, seed/area yield, seed germination in laboratory and dry matter yield. Data were subjected to variance analysis and means were compared by Tukey test (5%) in case of significant difference. The variance analysis showed a significant effect of cutting schemes for all evaluated variables. There was decrease in seed production and flowering delay when two or three cuttings were permormed. When three cuttings were performed there was serious decrease in seed productions, and the seeds development occurred in unfavorable period. Seeds production was influenced by the number of racemes/inflorescence and number of seeds/raceme. Zero cutting and one cutting presented the higher seed yield, 850 kg/ha and 794 kg/ha respectively. The higher germination was 64% (without cutting) and 60% (one cutting).

O objetivo deste trabalho foi avaliar o efeito do número de cortes na produção e qualidade de sementes de Paspalum guenoarum ecótipo “Azulão” no segundo ano de cultivo. Foram avaliados quatro tratamentos de corte: zero (testemunha), um, dois e três cortes quando o dossel das plantas atingia altura de 40 cm. O delineamento experimental foi de blocos completos casualizados, com quatro repetições. As parcelas tinham 7,2 m² (3,6 m x 2 m) com as plantas em linhas espaçadas a 0,4 m. As avaliações foram semanais de dezembro de 2013 a março de 2014. As variáveis estudadas foram: número de perfilhos/planta, número de perfilhos reprodutivos/planta através de amostragens não destrutivas. O número de racemos/inflorescência, número de sementes/inflorescência, número de sementes/racemo, peso de mil sementes, rendimento de sementes/área, germinação e índice de velocidade de germinação, foram obtidos através de amostragens destrutivas após a colheita das sementes. As médias foram comparadas pelo teste de Tukey a 5%. O tratamento de um corte (719 kg.ha-1 de sementes e 75% de plântulas normais) não diferiu da testemunha, não apresentando impactos negativos na produção e qualidade de sementes. Entretanto, a partir de dois cortes, houve a diminuição do número de perfilhos reprodutivos/planta, adiamento da colheita e redução da produção de sementes. A realização de um corte permitiu a produção de boa quantidade de forragem (2500 kg.ha-1 de MS) sem prejudicar o rendimento e a qualidade das sementes. / This study was aimed to evaluate the effect of the number of cutting in seed production and quality of Paspalum guenoarum, “Azulão” ecotype on the second year of crop. Treatments of zero (control), 1, 2, and 3 cuts were evaluated. The experimental design was a completely randomized block with four repetitions. The plots were of 7.2 m² (3.6 m x 2 m) with plants in 0.4 m rows spacing. Assessments were performed weekly from December, 2013 to March, 2014. The studied variables were number of tillers/plant, number of reproductive tillers/plant, and number of racemes/inflorescence through nondestructive sampling. The number of seeds/inflorescence, number of seeds/raceme, weight of thousand seeds, seed yield/area, germination, and germination speed index were obtained through destructive sampling after harvesting seeds. The means were compared by Tukey test at 5%. One cutting treatment (719 kg.ha-1 of seeds and 75% normal seedlings) doesn’t differ significantly comparing to the control, so, it didn’t appear negative impacts in seed production and quality. However, from two different cutting, there was a decrease in the number of reproductive tillers/plant, causing a delay harvest and reduced seed production. The achievement of one cutting allowed a utilization of good quantity of forage (2500 kg.ha-1 DM) without harming significantly the seed yield and quality.

O objetivo deste trabalho foi avaliar o efeito do número de cortes na produção e qualidade de sementes de Paspalum guenoarum ecótipo “Azulão” no segundo ano de cultivo. Foram avaliados quatro tratamentos de corte: zero (testemunha), um, dois e três cortes quando o dossel das plantas atingia altura de 40 cm. O delineamento experimental foi de blocos completos casualizados, com quatro repetições. As parcelas tinham 7,2 m² (3,6 m x 2 m) com as plantas em linhas espaçadas a 0,4 m. As avaliações foram semanais de dezembro de 2013 a março de 2014. As variáveis estudadas foram: número de perfilhos/planta, número de perfilhos reprodutivos/planta através de amostragens não destrutivas. O número de racemos/inflorescência, número de sementes/inflorescência, número de sementes/racemo, peso de mil sementes, rendimento de sementes/área, germinação e índice de velocidade de germinação, foram obtidos através de amostragens destrutivas após a colheita das sementes. As médias foram comparadas pelo teste de Tukey a 5%. O tratamento de um corte (719 kg.ha-1 de sementes e 75% de plântulas normais) não diferiu da testemunha, não apresentando impactos negativos na produção e qualidade de sementes. Entretanto, a partir de dois cortes, houve a diminuição do número de perfilhos reprodutivos/planta, adiamento da colheita e redução da produção de sementes. A realização de um corte permitiu a produção de boa quantidade de forragem (2500 kg.ha-1 de MS) sem prejudicar o rendimento e a qualidade das sementes. / This study was aimed to evaluate the effect of the number of cutting in seed production and quality of Paspalum guenoarum, “Azulão” ecotype on the second year of crop. Treatments of zero (control), 1, 2, and 3 cuts were evaluated. The experimental design was a completely randomized block with four repetitions. The plots were of 7.2 m² (3.6 m x 2 m) with plants in 0.4 m rows spacing. Assessments were performed weekly from December, 2013 to March, 2014. The studied variables were number of tillers/plant, number of reproductive tillers/plant, and number of racemes/inflorescence through nondestructive sampling. The number of seeds/inflorescence, number of seeds/raceme, weight of thousand seeds, seed yield/area, germination, and germination speed index were obtained through destructive sampling after harvesting seeds. The means were compared by Tukey test at 5%. One cutting treatment (719 kg.ha-1 of seeds and 75% normal seedlings) doesn’t differ significantly comparing to the control, so, it didn’t appear negative impacts in seed production and quality. However, from two different cutting, there was a decrease in the number of reproductive tillers/plant, causing a delay harvest and reduced seed production. The achievement of one cutting allowed a utilization of good quantity of forage (2500 kg.ha-1 DM) without harming significantly the seed yield and quality.

O objetivo deste trabalho foi avaliar o efeito do número de cortes na produção e qualidade de sementes de Paspalum guenoarum ecótipo “Azulão” no segundo ano de cultivo. Foram avaliados quatro tratamentos de corte: zero (testemunha), um, dois e três cortes quando o dossel das plantas atingia altura de 40 cm. O delineamento experimental foi de blocos completos casualizados, com quatro repetições. As parcelas tinham 7,2 m² (3,6 m x 2 m) com as plantas em linhas espaçadas a 0,4 m. As avaliações foram semanais de dezembro de 2013 a março de 2014. As variáveis estudadas foram: número de perfilhos/planta, número de perfilhos reprodutivos/planta através de amostragens não destrutivas. O número de racemos/inflorescência, número de sementes/inflorescência, número de sementes/racemo, peso de mil sementes, rendimento de sementes/área, germinação e índice de velocidade de germinação, foram obtidos através de amostragens destrutivas após a colheita das sementes. As médias foram comparadas pelo teste de Tukey a 5%. O tratamento de um corte (719 kg.ha-1 de sementes e 75% de plântulas normais) não diferiu da testemunha, não apresentando impactos negativos na produção e qualidade de sementes. Entretanto, a partir de dois cortes, houve a diminuição do número de perfilhos reprodutivos/planta, adiamento da colheita e redução da produção de sementes. A realização de um corte permitiu a produção de boa quantidade de forragem (2500 kg.ha-1 de MS) sem prejudicar o rendimento e a qualidade das sementes. / This study was aimed to evaluate the effect of the number of cutting in seed production and quality of Paspalum guenoarum, “Azulão” ecotype on the second year of crop. Treatments of zero (control), 1, 2, and 3 cuts were evaluated. The experimental design was a completely randomized block with four repetitions. The plots were of 7.2 m² (3.6 m x 2 m) with plants in 0.4 m rows spacing. Assessments were performed weekly from December, 2013 to March, 2014. The studied variables were number of tillers/plant, number of reproductive tillers/plant, and number of racemes/inflorescence through nondestructive sampling. The number of seeds/inflorescence, number of seeds/raceme, weight of thousand seeds, seed yield/area, germination, and germination speed index were obtained through destructive sampling after harvesting seeds. The means were compared by Tukey test at 5%. One cutting treatment (719 kg.ha-1 of seeds and 75% normal seedlings) doesn’t differ significantly comparing to the control, so, it didn’t appear negative impacts in seed production and quality. However, from two different cutting, there was a decrease in the number of reproductive tillers/plant, causing a delay harvest and reduced seed production. The achievement of one cutting allowed a utilization of good quantity of forage (2500 kg.ha-1 DM) without harming significantly the seed yield and quality.

Plicatula is a taxonomic group within of the genus Paspalum that contains interesting species considering their phenotypic diversity for forage traits, and some of these species have been improved through artificial interspecific hybridization. Nitrogen (N) is an important limiting factor to produce biomass. Forage legumes contribute with symbiotic N2 fixation and can increase biomass yield and the nutritive value of the pastures. The objectives of this thesis were: (i) evaluate dry matter yield (DMY), N use efficiency (NUE), nutritive value, cold tolerance and plant persistence in hybrids of Paspalum plicatulum x P. guenoarum subjected to N application rates, (ii) compare biomass yield and nutritive value of the grass–legume system to a grass–N fertilizer system, and (iii) select the best hybrids for new steps within the breeding program. The study was conducted from September 2015 to May 2017. The experimental design was a randomized complete block in split-plot arrangement with three replicates. Treatments were five N rates (0, 60, 120, 240, and 480 kg N ha-1 N), and one grass-legumes mixture (Trifolium repens + Lotus corniculatus) as whole plots, and six genotypes (1020133, 102069, 103084, 103061, P. guenoarum ecotype Azulão and Megathyrsus maximus cv. Aruana used as a control) as subplots. Nitrogen rates of 240 and 480 kg N ha-1 increased Total-DMY, Leaf-DMY, cold tolerance and persistence but decreased NUE. Higher NUE was obtained with N rates between 60 and 120 kg N ha-1. Total-DMY for grass-legume mixture was similar to the N rates of 60 and 120 kg N ha-1. Hybrid 1020133 had Total-DMY similar to Azulão and Aruana, as well as Leaf-DMY greater than Aruana. Hybrid 1020133 showed greater cold tolerance and exhibited greater NUE at 60 kg N ha-1 than the other genotypes. At the N rate of 480 kg N ha-1 increased crude protein (27%) and digestibility (4%) and decreased neutral (6%) and acid (7%) detergent fiber compared to the 0 kg N ha-1. Grass-legume mixture showed greater nutritive value compared to N-fertilized grass. Hybrid 103061 had greater crude protein and digestibility and lower neutral and acid detergent fiber than Azulão and Aruana. Therefore, there is opportunity to increase DMY, NUE, cold tolerance and plant persistence, and improve the nutritive value through genotype selection and N management. In addition, grass-legume mixture showed greater nutritive value than N-fertilized grass and can be an alternative practice to replace to the application of N fertilizer up to the rate of 120 kg N ha-1. Hybrids 1020133 and 103061 should be indicated for new studies, such as seed production and animal performance.

Plicatula is a taxonomic group within of the genus Paspalum that contains interesting species considering their phenotypic diversity for forage traits, and some of these species have been improved through artificial interspecific hybridization. Nitrogen (N) is an important limiting factor to produce biomass. Forage legumes contribute with symbiotic N2 fixation and can increase biomass yield and the nutritive value of the pastures. The objectives of this thesis were: (i) evaluate dry matter yield (DMY), N use efficiency (NUE), nutritive value, cold tolerance and plant persistence in hybrids of Paspalum plicatulum x P. guenoarum subjected to N application rates, (ii) compare biomass yield and nutritive value of the grass–legume system to a grass–N fertilizer system, and (iii) select the best hybrids for new steps within the breeding program. The study was conducted from September 2015 to May 2017. The experimental design was a randomized complete block in split-plot arrangement with three replicates. Treatments were five N rates (0, 60, 120, 240, and 480 kg N ha-1 N), and one grass-legumes mixture (Trifolium repens + Lotus corniculatus) as whole plots, and six genotypes (1020133, 102069, 103084, 103061, P. guenoarum ecotype Azulão and Megathyrsus maximus cv. Aruana used as a control) as subplots. Nitrogen rates of 240 and 480 kg N ha-1 increased Total-DMY, Leaf-DMY, cold tolerance and persistence but decreased NUE. Higher NUE was obtained with N rates between 60 and 120 kg N ha-1. Total-DMY for grass-legume mixture was similar to the N rates of 60 and 120 kg N ha-1. Hybrid 1020133 had Total-DMY similar to Azulão and Aruana, as well as Leaf-DMY greater than Aruana. Hybrid 1020133 showed greater cold tolerance and exhibited greater NUE at 60 kg N ha-1 than the other genotypes. At the N rate of 480 kg N ha-1 increased crude protein (27%) and digestibility (4%) and decreased neutral (6%) and acid (7%) detergent fiber compared to the 0 kg N ha-1. Grass-legume mixture showed greater nutritive value compared to N-fertilized grass. Hybrid 103061 had greater crude protein and digestibility and lower neutral and acid detergent fiber than Azulão and Aruana. Therefore, there is opportunity to increase DMY, NUE, cold tolerance and plant persistence, and improve the nutritive value through genotype selection and N management. In addition, grass-legume mixture showed greater nutritive value than N-fertilized grass and can be an alternative practice to replace to the application of N fertilizer up to the rate of 120 kg N ha-1. Hybrids 1020133 and 103061 should be indicated for new studies, such as seed production and animal performance.

Plicatula is a taxonomic group within of the genus Paspalum that contains interesting species considering their phenotypic diversity for forage traits, and some of these species have been improved through artificial interspecific hybridization. Nitrogen (N) is an important limiting factor to produce biomass. Forage legumes contribute with symbiotic N2 fixation and can increase biomass yield and the nutritive value of the pastures. The objectives of this thesis were: (i) evaluate dry matter yield (DMY), N use efficiency (NUE), nutritive value, cold tolerance and plant persistence in hybrids of Paspalum plicatulum x P. guenoarum subjected to N application rates, (ii) compare biomass yield and nutritive value of the grass–legume system to a grass–N fertilizer system, and (iii) select the best hybrids for new steps within the breeding program. The study was conducted from September 2015 to May 2017. The experimental design was a randomized complete block in split-plot arrangement with three replicates. Treatments were five N rates (0, 60, 120, 240, and 480 kg N ha-1 N), and one grass-legumes mixture (Trifolium repens + Lotus corniculatus) as whole plots, and six genotypes (1020133, 102069, 103084, 103061, P. guenoarum ecotype Azulão and Megathyrsus maximus cv. Aruana used as a control) as subplots. Nitrogen rates of 240 and 480 kg N ha-1 increased Total-DMY, Leaf-DMY, cold tolerance and persistence but decreased NUE. Higher NUE was obtained with N rates between 60 and 120 kg N ha-1. Total-DMY for grass-legume mixture was similar to the N rates of 60 and 120 kg N ha-1. Hybrid 1020133 had Total-DMY similar to Azulão and Aruana, as well as Leaf-DMY greater than Aruana. Hybrid 1020133 showed greater cold tolerance and exhibited greater NUE at 60 kg N ha-1 than the other genotypes. At the N rate of 480 kg N ha-1 increased crude protein (27%) and digestibility (4%) and decreased neutral (6%) and acid (7%) detergent fiber compared to the 0 kg N ha-1. Grass-legume mixture showed greater nutritive value compared to N-fertilized grass. Hybrid 103061 had greater crude protein and digestibility and lower neutral and acid detergent fiber than Azulão and Aruana. Therefore, there is opportunity to increase DMY, NUE, cold tolerance and plant persistence, and improve the nutritive value through genotype selection and N management. In addition, grass-legume mixture showed greater nutritive value than N-fertilized grass and can be an alternative practice to replace to the application of N fertilizer up to the rate of 120 kg N ha-1. Hybrids 1020133 and 103061 should be indicated for new studies, such as seed production and animal performance.