scholarly journals Relative performance of oat (Avena sativa L.) varieties for their growth and seed yield

2014 ◽  
Vol 9 (3) ◽  
pp. 425-431 ◽  
Author(s):  
N. Siloriya P. ◽  
S. Rathi G. ◽  
D. Meena V.
Keyword(s):  
Seed Yield ◽  
Avena Sativa ◽  
Relative Performance

scholarly journals YIELD AND DISEASE-ESCAPE POTENTIAL OF FALL-SOWN OATS POSSESSING SEED DORMANCY

1970 ◽  
Vol 50 (4) ◽  
pp. 371-377 ◽  
Author(s):  
V. D. BURROWS
Keyword(s):  
Seed Size ◽  
Seed Dormancy ◽  
Seed Yield ◽  
Avena Sativa ◽  
Plant Morphology ◽  
Dormant Seed ◽  
Early Maturity ◽  
Spring Emergence

Several "dormoat" lines that resemble Avena sativa L. ’Clintland’ in seed and plant morphology but having the seed dormancy of A. fatua L. were synthesized to test the hypothesis that fall-sown dormant oats that do not germinate until the following spring will yield more grain in Canada than spring-sown oats. In 1966, seed yield increases of 13 and 24% were obtained at Ottawa from 1965 fall sowings of dormant seed compared with spring sowings of non-dormant seed of the same "dormoat" lines. Greater seed size and escape from diseases because of early maturity were mainly responsible for the higher yields of the fall-sown as compared with the spring-sown plots. In spite of these encouraging results, "dormoats" will not be commercially useful until the spring emergence of fall-sown seed is greatly increased.

scholarly journals Yield, its components and pest incidence in mixed intercropping of oats (Avena sativa) and field beans (Vicia faba)

1989 ◽  
Vol 61 (1) ◽  
pp. 15-31 ◽  
Author(s):  
Juha Helenius ◽  
Päivi Ronni
Keyword(s):  
Vicia Faba ◽  
Avena Sativa ◽  
Yield Components ◽  
Field Experiments ◽  
Relative Performance ◽  
High Fertility ◽  
Cropping Pattern ◽  
Mixed Cropping ◽  
Pest Incidence ◽  
Field Beans

Seed yields, yield components, pest incidence and damage were examined in two field experiments of mixed intercropping of oats (Avena sativa) with field beans (Vicia faba) in Southern Finland in 1984—1985.The stand types were monocrops and replacement series of mixtures with 2/3 and 1/3 or 1/3 and 2/3 of oats and beans, respectively, on plots treated or not treated with insecticide. In the first season when the overall performance of the crops was poor and the numbers of the main pest Rhopalosiphum padi (Horn., Aphididae) on oats low, the Land Equivalent Ratio (LER) index indicated an intercropping advantage in the bean yield and a disadvantage in the oat yield, the insecticide treatment having no effect on the overall nor on the relative performance of the component crops. The site used during the second season was of high fertility, thus favouring oats over beans. The LERs indicated no advantage or disadvantage in mixed cropping for either oats or beans when R. padi was not controlled. Spraying against R. padi improved the performance of oats, the mixture with 1/3 oats showing an advantage over the monocrop. Simultaneously, there were signs (p = 0.08) of a reduction in the relative performance of the beans. The indicative results support the hypothesis of interspecific dynamics in compensatory yielding as an element of improved reliability in intercropping. The yield components most sensitive to the change in cropping pattern were the number of panicles per plant in oats and the seed weight in beans, both increasing in the mixtures. Compared to known responses to stand density in monocrops, the beans responded to the mixed cropping in a more specific way than the oats. Mixed cropping increased the numbers of aphids in oats. There were signs of a reduced incidence, but not of a reduced average colony size, of Aphis fabae, and of a reduced rate of notching by Sitona spp. weevils on beans in mixed cropping. The results for damage by the frit fly (Oscinella frit) were inconclusive.

scholarly journals Effect of Mineral -Biofertilizer on Physiological Parameters and Yield of Three Varieties of Oat (Avena sativa L.)

2019 ◽  
Vol 32 ◽  
pp. 8-25
Author(s):  
Lamiaa M. Al-Freeh ◽  
Sundus A. Alabdulla ◽  
Kadhim H. Huthily
Keyword(s):  
Growth Rate ◽  
Grain Yield ◽  
Leaf Area ◽  
Seed Yield ◽  
Avena Sativa ◽  
Field Experiments ◽  
Sandy Loam ◽  
Mineral Fertilizer ◽  
Physiological Parameters ◽  
Area Index

To study the effect of biofertilizers on physiological parameters and yield  of three varieties of Oat (Avena sativa L.), field experiments were conducted during winter seasons 2016-2017 and 2017-2018 at Al- Zubair district (20 km. West of Basrah province) in sandy loam soils. A split plot arrangement, using RCBD with three replicates, the main plots contained varieties: V1 (Genzania), V2 (Shaffaa),  V3  (Carloup), Biofertilizer, treatments were at the sub plots: B0 (control), B1 (NPK mineral fertilizer as recommended), B2 (biofertilizers NPK), B3 (mineral fertilizer PK+ biofertilizers N), B4 (mineral fertilizer K+ biofertilizers NP), B5 (mineral fertilizer P + biofertilizers NK), B6 (mineral fertilizer N + biofertilizers PK). Data were collected on Flag leaf area FLA, Leaf area duration LAD, Leaf area index LAI, Crop growth rate CGR, Relative growth rate RGR, Net assimilation rate NAR, Plant high Tillers number m2 and grain yield t ha-1. The results showed that the adding of biofertilizers NPK (B2) led to a significant increase in the studied traits (FLA, LAD, LAI, CGR, RGR, NAR, and grain yield). The grain yield were increased about 189.96 and 197.3% as compared with control in each seasons respectively. Cultivar Genzania resulted in highest grain yield among studied varieties in the first season (5.774 t ha-1), while cultivar Shaffa  gave the highest grain yield in the second season (8.691 t ha-1). The interaction between Ganzania and B2 treatment recorded the highest seed yield (8.429 tan ha-1) in the first season. While, in the second season all varieties that interacted with B2 treatment produced the highest seed yield.

SEM Cold Stage Techniques for the Observation of Vegetative and Floral Apices of Oat (Avena sativa L.) Plants

1977 ◽  
Vol 35 ◽  
pp. 590-591
Author(s):  
B. K. Kirchoff ◽  
L.F. Allard ◽  
W.C. Bigelow
Keyword(s):  
Critical Point ◽  
Avena Sativa ◽  
Substantial Improvement ◽  
Fresh Tissue ◽  
Cold Stage ◽  
Critical Point Drying ◽  
Almost All ◽  
Cell Collapse ◽  
Conductive Paint ◽  
Carbon Based

In attempting to use the SEM to investigate the transition from the vegetative to the floral state in oat (Avena sativa L.) it was discovered that the procedures of fixation and critical point drying (CPD), and fresh tissue examination of the specimens gave unsatisfactory results. In most cases, by using these techniques, cells of the tissue were collapsed or otherwise visibly distorted. Figure 1 shows the results of fixation with 4.5% formaldehyde-gluteraldehyde followed by CPD. Almost all cellular detail has been obscured by the resulting shrinkage distortions. The larger cracks seen on the left of the picture may be due to dissection damage, rather than CPD. The results of observation of fresh tissue are seen in Fig. 2. Although there is a substantial improvement over CPD, some cell collapse still occurs.Due to these difficulties, it was decided to experiment with cold stage techniques. The specimens to be observed were dissected out and attached to the sample stub using a carbon based conductive paint in acetone.

PPARα and PPARβ/δ Activation by Oat (Avena sativa) Oil Stimulates Keratinocyte Differentiation and Ceramide Synthesis

Planta Medica ◽  
2013 ◽  
Vol 79 (10) ◽  
Author(s):  
S Chon ◽  
R Earland ◽  
A Pappas ◽  
KA Reynertson ◽  
MD Southall
Keyword(s):  
Avena Sativa ◽  
Keratinocyte Differentiation ◽  
Ceramide Synthesis

Estimación de biomasa aérea de forrajes de invierno bajo riego a través de un dron

2019 ◽  
Vol 12 (4) ◽  
Author(s):  
Francisco Gavi Reyes ◽  
César Botello-Aguillón ◽  
Leonardo Tijerina-Chávez ◽  
Arturo Galvis-Spíndola ◽  
Rodrigo Roblero-Hidalgo
Keyword(s):  
Medicago Sativa ◽  
Avena Sativa ◽  
Medicago Sativa L

E Objetivo: Desarrollar un procedimiento para estimar biomasa con imágenes digitales captadas desde un dron y modelación 3D (ID-Dron-3D) aplicable en alfalfa (Medicago sativa L.) y avena forrajera (Avena sativa L.). Diseño/metodología/aproximación: Con una cámara digital acoplada al dron se obtuvieron imágenes antes de la cosecha de los cultivos, que fueron procesadas con software para luego estimar volumen de biomasa. En cada cultivo se midió altura de la planta y área cosechada, volumen aparente y real de biomasa, y peso de biomasa fresca y seca. Resultados: Con base en el análisis de regresión se obtuvieron modelos lineales a una p<0.05 para predecir: biomasa fresca en avena (R2=0.70) y alfalfa (R2 =0.47); y biomasa seca en avena (R2=0.78) y en alfalfa (R2=0.31) mediante ID-Dron-3D. Limitaciones del estudio/implicaciones: Considerando las R2 de los modelos obtenidos, los resultados en la avena forrajera fueron mejores, respecto a los detectados en alfalfa, lo cual se puede deber a la mayor variabilidad de la cobertura vegetal, ya que, en algunas unidades de muestreo, las plantas de alfalfa no cubrían completamente el suelo. Hallazgos/conclusiones: El rendimiento de biomasa fresca y seca de ambos cultivos se correlacionó significativamente con su respectivo volumen aparente estimado con imágenes digitales tomadas desde un dron y su procesamiento 3D (ID-Dron-3D).

Neutral Lipids of Oats Fruit (Avena Sativa L.)

2020 ◽  
Vol 9 (4) ◽  
pp. 40-43
Author(s):  
N. K. Yuldasheva ◽  
S. D. Gusakova ◽  
D. Kh. Nurullaeva ◽  
N. T. Farmanova ◽  
R. P. Zakirova ◽  
...  
Keyword(s):  
Avena Sativa ◽  
Neutral Lipids ◽  
The Body ◽  
Biologically Active ◽  
Absorption Bands ◽  
Vital Functions ◽  
The Republic ◽  
Living Organisms ◽  
Main Components ◽  
Active Substances

Introduction. Lipids are a widespread group of biologically active substances in nature, making up the bulk of the organic substances of all living organisms. They accumulate in plants in seeds, as well as in fruits and perform a number of vital functions: they are the main components of cell membranes and the energy reserve for the body.Aim. Study of neutral lipids of sown oats (Avena sativa L.).Materials and methods. The objects of the study were fruits (grains) of oats of the sown variety "Tashkent 1," harvested in the Republic of Uzbekistan. Results and discussions. Neutral lipids of oat grains have been found to contain 13 fatty acids with a predominance of the sum of oleic, linolenic and linoleic acids. The total degree of unsaturation was almost 78%. Absorption bands characteristic of these substances were observed in the IR spectrum of MEGC.Conclusion. According to the results of the NL analysis, oat grains consisted of triacylglycerides and free LCDs, which were accompanied by hydrocarbons, phytosterols, triterpenoids and tocopherols.

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