Variation and Correlations among European and North American Orchardgrass Germplasm for Herbage Yield and Nutritive Value

Robins, Joseph G.; Bushman, B. Shaun; Feuerstein, Ulf; Blaser, Greg

doi:10.3390/agronomy6040061

Cited by 3 publications

(1 citation statement)

References 32 publications

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“…Orchardgrass produces forage that is of lower quality than perennial ryegrass ( Lolium perenne ), but it has a high yield during the summer months and is more tolerant of abiotic stress, for example, moderate fertile soils and extreme weather conditions (Hill, 1997; Robins et al, 2016; Sanada, Gras, et al, 2010). The challenges of climate change and the associated increased frequency of severe droughts present serious challenges for grass breeding and grassland utilization.…”

Section: Introductionmentioning

confidence: 99%

Effect of fertilization and plant protection treatments on seed yield and seed quality of orchardgrass (Dactylis glomerata L.)

et al. 2022

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The propagation and seed multiplication of site‐adapted and drought‐tolerant grass varieties are essential to provide high‐quality forage in temperate grasslands. A field experiment was conducted from 2016–2019 on orchardgrass (Dactylis glomerata L.) in the province of Styria, Austria. Treatment effects of sulfur, fungicide application and a plant growth regulator, singly and in combination, on seed yield and its reproduction parameters were tested under two different fertilizer nitrogen management systems (single application [N1] and split application [N2]). In terms of seed yield, a combination of all treatments compared to fertilization‐only treatment showed a significant increase of 22% under N2 fertilization. In terms of the thousand seed weight, the fungicide treatments and a combination of all treatments performed significantly better than other treatments within N1 and N2. The use of fungicide and a combination of all treatments also significantly increased the germination capacity in N1. Therefore, a combination of all plant protection treatments is recommended to optimize seed yield, thousand seed weight and germination capacity.

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Section: Introductionmentioning

confidence: 99%

Effect of fertilization and plant protection treatments on seed yield and seed quality of orchardgrass (Dactylis glomerata L.)

et al. 2022

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The effects of organic grass and grass-birdsfoot trefoil pastures on Jersey heifer development: Herbage characteristics affecting intake

Rose

Waldron

Isom

et al. 2021

Journal of Dairy Science

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Low dietary energy and decreased intake of herbage have been attributed to the reduced performance of grazing dairy cattle. We hypothesized that grasses with inherently greater energy would interact in a complementary way with condensed tannins (CT) in birdsfoot trefoil to increase herbage intake by grazing dairy heifers. Eight pasture treatments comprising high-sugar perennial ryegrass (Lolium perenne L.), orchardgrass (Dactylis glomerata L.), meadow bromegrass (Bromus riparius Rehmann), and tall fescue [Schendonorus arundinaceus (Schreb.) Dumort] were established in Lewiston, Utah as monocultures and binary mixtures with birdsfoot trefoil (Lotus corniculatus L.; BFT). Pasture treatments were rotationally stocked by Jersey heifers for 105 d in 2017 and 2018, and herbage samples were collected pre-and postgrazing for each 7-d grazing period and analyzed for herbage mass, nutritive value, and apparent herbage intake. We observed differences among pasture treatments in herbage quantity and nutritive value, as well as differences in herbage intake by grazing Jersey heifers. On average, grass-BFT mixtures had greater herbage intake than grass monocultures, and every grass-BFT treatment individually had greater herbage intake than their respective grass monocultures. Using multivariate analyses, we determined that approximately 50% of the variation in herbage intake was due to nutritive and physical herbage characteristics, with the most explanatory being characteristics related to fiber and energy, followed by those related to the percent of BFT in the herbage. Grass monocultures exhibited a range of inherent dietary energy, but there was indication that an imbalance of energy to crude protein (e.g., protein deficient) reduced intake of grass monocultures. Moreover, there was some evidence of a complementary effect between increased dietary energy and CT; however, low CT levels made it impossible to determine the effect of CT on herbage intake per se. This study confirmed that chemical and physical characteristics inherent to different pasture species have a large effect on herbage intake by grazing cattle. Pastures planted to binary mixtures of nutritious grasses and birdsfoot trefoil increase herbage intake of temperate pastures by grazing Jersey heifers.

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The Effect of Drought on Agronomic and Plant Physiological Characteristics of Cocksfoot (Dactylis glomerata L.) Cultivars

Gaier,

Poetsch,

Graiss

et al. 2024

Agriculture

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Cocksfoot (Dactylis glomerata L.) is becoming increasingly important for grassland farming due to climate change, which alters precipitation and increases droughts. Although it is generally considered to be drought-tolerant, little is known about the differences between cultivars. This study aimed to investigate the effects of four different field capacity (FC) levels (80%, 60%, 40%, and rewetting to 80% after a period of 40% FC) on the yield, crude protein content, water consumption, water use efficiency (WUE), and drought susceptibility index of five European cocksfoot cultivars (cv). A pot experiment was conducted in a greenhouse subjected to the specified irrigation treatments over three growth periods. The results revealed significant differences in the cultivars’ responses to the irrigation treatments. Dry matter yield decreased under simulated drought conditions, while crude protein content and WUE increased. Prolana cv achieved the highest yield under drought conditions, Tandem cv had the highest WUE, and Laban cv exhibited the highest crude protein content. Rewetting to 80% FC in the last growth period resulted in similar dry matter and crude protein yields for all cultivars compared to full irrigation. These findings highlight the importance of selecting and breeding drought-tolerant cocksfoot cultivars to maintain high yields and quality in perennial grassland farming under future climate conditions.

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Variation and Correlations among European and North American Orchardgrass Germplasm for Herbage Yield and Nutritive Value

Cited by 3 publications

References 32 publications

Effect of fertilization and plant protection treatments on seed yield and seed quality of orchardgrass (Dactylis glomerata L.)

Effect of fertilization and plant protection treatments on seed yield and seed quality of orchardgrass (Dactylis glomerata L.)

The effects of organic grass and grass-birdsfoot trefoil pastures on Jersey heifer development: Herbage characteristics affecting intake

The Effect of Drought on Agronomic and Plant Physiological Characteristics of Cocksfoot (Dactylis glomerata L.) Cultivars

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