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Adaptability and Stability of Yield and Industrial Grain Quality with and without Fungicide in Brazilian Oat Cultivars  [PDF]
José Antonio Gonzalez da Silva, Maisa Didoné Wohlenberg, Emilio Ghisleni Arenhardt, Antonio Costa de Oliveira, Gustavo Mazurkievicz, Mariele Müller, Lorenzo Ghisleni Arenhardt, Manuel Osorio Binelo, Guilherme Arnold, Rafael Pretto
American Journal of Plant Sciences (AJPS) , 2015, DOI: 10.4236/ajps.2015.69155
Abstract: The use of productive cultivars with adaptability and stability and less demanding to fungicide use are critical to the sustainability of production factors. The objective of this work was to determine the per se performance of white oat cultivars and parameters of adaptability and stability on yield and grain quality in the proposition of cultivars more responsive in reducing the use fungicide. The study was conducted in Augusto Pestana, RS, Brazil, between the years 2010 and 2013. The experimental design was randomized blocks with six replicates, three with and three without fungicide. The study evaluated 14 white oat cultivars for yield and industrial capability. The white oat cultivars FAEM 4 Carlasul and URS Corona indicate high grain yield with stability and general adaptability, independent of chemical control. The cultivar URS Corona shows together high yield and thousand grain weight and hectoliter with general adaptability and stability in the absence of fungicide. Although no stability has been detected in industrial yield without the use of fungicides, cultivars of URS Charrua, URS Corona and URS Taura show high means with general adaptability.
CULTIVAR RELEASE - FAEM Chiarasul: new white oat cultivar with high yield and grainprocessing quality  [PDF]
Antonio Costa de Oliveira,Fernando Irajá Félix de Carvalho,Luciano Carlos da Maia,José Antonio Gonzalez da Silva
Crop Breeding and Applied Biotechnology , 2012,
Abstract: The white oat cultivar FAEM Chiarasul was developed from a cross between UFRGS 17 and UFGS 10/ Coronado2/Cortez3/Pendek/ME 1563. It is characterized by reduced plant height, and high yield, grain quality and grain-processing quality
Barbarasul: a high-yielding and lodging-resistant white oat cultivar
Fernando Irajá Félix de Carvalho,Antonio Costa de Oliveira,Igor Pirez Valério,Giovani Benin
Crop Breeding and Applied Biotechnology , 2009,
Abstract: The white-oat cultivar Barbarasul was developed by the Universidade Federal de Pelotas. It resulted from across between UPF18 and CTC5. It is adapted to the southern region of Brazil, with excellent grain yield potential, shortstature and high lodging tolerance.
Pollination dynamics, grain weight and grain cell number within the inflorescence and spikelet in oat and wheat  [PDF]
Ari Rajala, Pirjo Peltonen-Sainio
Agricultural Sciences (AS) , 2011, DOI: 10.4236/as.2011.23037
Abstract: Oat (Avena sativa L.) and wheat (Triticum aestivum L.) vary in the structure of their inflores-cences and also in how pollination proceeds within the inflorescence. In both species the grain position in the spikelet determines grain weight potential. Primary grains in oat and proximal grains in wheat weigh more than secondary and distal grains. This variation in grain weight can potentially result from differences in post-pollination cell division in the grain. In this study pollination duration and dynamics were analyzed from head samples collected at two-day intervals, starting from the pollination of the most advanced floret. The number of grain cells was determined for individual grains throughout the inflorescence, starting from the pollination event. When mature, grain position in the spikelet and spike was noted and grain weight assessed. Pollination advance in oat proceeded from the uppermost primary floret towards the basal spikelets in ten to eleven days. Within the spikelet, the primary floret was pollinated on average one day earlier than the secondary floret. In wheat, pollination duration was four to five days, starting from the proximal florets in the mid-section of the inflorescence progressing towards the apical and basal spikelets. Proximal florets were pollinated one to two days earlier than distal florets. Maximum cell number in primary grains exceeded that of secondary grains in two oat cultivars. Similarly, primary grains were heavier than secondary grains. Cell number and single grain weight were correlated in terms of grain position in the spikelet (primary – secondary) and cultivar. Oat cultivar Belinda had a higher single grain weight than Fiia, which was also expressed as larger grain cell number. In wheat, proximal grains had higher maximum cell numbers and were also heavier than distal grains. This grain weight gradient was apparent throughout the inflorescence. Consequently, grain cell number is one of the possible regulators of grain-filling capacity in both cereal crops.
Tillering does not interfere on white oat grain yield response to plant density
Almeida, Milton Luiz de;Sangoi, Luís;Ender, Márcio;Wamser, Anderson Fernando;
Scientia Agricola , 2003, DOI: 10.1590/S0103-90162003000200008
Abstract: plant density is one of the cropping practices that has the largest impact on individual plant growth. this work was conducted to evaluate the response of white oat (avena sativa) cultivars with contrasting tillering patterns to variations in plant density. two field experiments were carried out in lages, sc, brazil, during the 1998 and 1999 growing seasons. a split plot experimental design was used. four oat cultivars were tested in the main plots: ufrgs 14, ufrgs 18, upf 16 and upf 17 using five plant densities split plots: 50, 185, 320, 455 and 550 plants m-2. five plant samples were taken 25, 34, 48, 58 and 70 days after plant emergence to assess the treatment effects on dry matter partition between main stem and tillers. ufrgs 18 promoted dry matter allocation to tillers whereas upf 17 directed dry mass mostly to the main stem. differences in dry mass allocation between the main stem and tillers had no impact on grain yield, upf 16 presenting the highest values for both growing seasons. the lack of interaction between population density and cultivar and the small effect of plant population on grain yield indicates that the oat tillering ability is not fundamental to define its grain yield.
Tillering does not interfere on white oat grain yield response to plant density  [cached]
Almeida Milton Luiz de,Sangoi Luís,Ender Márcio,Wamser Anderson Fernando
Scientia Agricola , 2003,
Abstract: Plant density is one of the cropping practices that has the largest impact on individual plant growth. This work was conducted to evaluate the response of white oat (Avena sativa) cultivars with contrasting tillering patterns to variations in plant density. Two field experiments were carried out in Lages, SC, Brazil, during the 1998 and 1999 growing seasons. A split plot experimental design was used. Four oat cultivars were tested in the main plots: UFRGS 14, UFRGS 18, UPF 16 and UPF 17 using five plant densities split plots: 50, 185, 320, 455 and 550 plants m-2. Five plant samples were taken 25, 34, 48, 58 and 70 days after plant emergence to assess the treatment effects on dry matter partition between main stem and tillers. UFRGS 18 promoted dry matter allocation to tillers whereas UPF 17 directed dry mass mostly to the main stem. Differences in dry mass allocation between the main stem and tillers had no impact on grain yield, UPF 16 presenting the highest values for both growing seasons. The lack of interaction between population density and cultivar and the small effect of plant population on grain yield indicates that the oat tillering ability is not fundamental to define its grain yield.
The Dynamics of Relation Oat Panicle with Grain Yield by Nitrogen  [PDF]
Rubia Diana Mantai, José Antonio Gonzalez da Silva, Emilio Ghisleni Arenhardt, Airam Tereza Zago Romcy Sausen, Manuel Osório Binello, Vidica Bianchi, Dionatas Rodrigues da Silva, Luiz Michel Bandeira
American Journal of Plant Sciences (AJPS) , 2016, DOI: 10.4236/ajps.2016.71003
Abstract: The oat panicle components were changed by the forms of nitrogen use influencing productivity. The aim of the study was to determine the direct and indirect effects of oat panicle components on grain yield by N-fertilizer rates in succession systems of high and reduced release of N-residual. The study was conducted in the years 2013 and 2014 in a randomized complete block with four replications in a factorial 3 × 2, for nitrogen rates (30, 60 and 120 kg·ha-1) and oat cultivars (Barbarasul and Brisasul) the soybean/oat and corn/oat systems. The panicle weight and grain per panicle show greater sensitivity to the change of nitrogen rates. Grain yield was favored by the direct effect of harvest index panicle and indirect by grain weight per panicle. In the system soybean/ oat, the grain weight of panicle shows greater efficiency in promoting positive direct effects on grain yield.
GRAIN YIELD STABILITY OF WINTER OAT (AVENA SATIVA L.) CULTIVARS IN THE CENTRAL ANATOLIAN REGION OF TURKEY  [PDF]
Mevlut AKCURA,Sait CER?,Seyfi TANER,Yuksel KAYA
Journal of Central European Agriculture , 2006,
Abstract: The objectives of this research were to assess genotype environment interaction and determine stable oat (Avena sativa L.) cultivars for grain yield in Central Anatolian Region of Turkey. Stability analysis [9] were to performed on results for grain yield of 5 oat cultivars (Chekota, Yesilkoy-1779, Yesilkoy-330, Faikbey-2004, Seydisehir-2004) from 24 trials (6 irrigated, 18 rain fed ) was conducted over 6 years in the Central Anatolian Region, Turkey. There was considerable variation in grain yield within and across environments. Year by location and location variability were dominant sources of interactions. The cultivar, “Seydisehir-2004” with respective regression coefficient value of 1.03, the smallest deviations from regressions (S2di) value and the highest grain yield could be considered the most widely adapted cultivar. The other test cultivars were sensitive to production-limiting factors, their wider adaptability, stability and general performance to the fluctuating growing conditions within and across environments being lowered.
The effects of genotype and environment on selected traits of oat grain and flour
Anna Czubaszek
Plant Breeding and Seed Science , 2009, DOI: 10.2478/v10129-010-0005-7
Abstract: The purpose of the investigation was to study the effects of variety properties of oat cultivars and environmental conditions on physical traits and chemical composition of grain and flour. Nine oat cultivars had been grown in the experimental plots (stations) located in two experimental stations in Jelenia Góra and Bobrowniki. The samples were collected in two harvest years. As it has been found, the genetic factors affected physical traits of the grain. The chemical composition of oat grain depended to a large extent on the weather conditions during the growing season. The genetic factors affected only total protein content of the oat grain. The grain of the oat cultivars under investigation was high in total protein but low in starch. Its proteolytic and amylolytic activities were on average levels. Total protein and pentosan content as well as proteolytic activity of the oat flour were lower than those of grain, but starch content and the falling number were higher.
CULTIVAR RELEASE - Brisasul: a new high-yielding white oat cultivar with reduced lodging  [PDF]
Ant?nio Costa de Oliveira,Maraisa Crestani,Fernando Irajá Félix de Carvalho,José Antonio Gonzalez da Silva
Crop Breeding and Applied Biotechnology , 2011,
Abstract: The white oat cultivar Brisasul was developed from the cross OR 2 x UPF 18 at the Centro de Gen mica e Fitomelhoramento, Faculdade de Agronomia ‘Eliseu Maciel’, Universidade Federal de Pelotas. The most important traits are high yield, low stature and high lodging resistance.
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