Yield and Nutritive Value Responses of Forage Barley Cultivars and Lines

Nakano, Hiroshi; Kawada, Naoyuki; Hattori, Ikuo; Morita, Satoshi; Araki, Hideki

doi:10.2134/agronj2012.0468

Cited by 3 publications

(3 citation statements)

References 20 publications

(24 reference statements)

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“…Thus, in double harvesting of Ruriaoba, reducing the row spacing (similar to broadcast seeding) and increasing the seeding rate were effective for increasing both DM and TDN yields. A previous study identified forage barley cultivars with high DM yields and nutritive values at heading or dough ripe in paddy fields of southwestern Japan (Nakano et al 2013). Combining such forage barley cultivations in the winter growing season with double harvesting following the direct seeding of forage rice into well-drained paddy fields in the summer growing season should result in a new labor-and cost-effective cropping system for roughage production in temperate regions in the near future.…”

Section: Discussionmentioning

confidence: 99%

Dry Matter Yield Response to Seeding Rate and Row Spacing in Direct-seeded and Double-harvested Forage Rice

Nakano

Hattori

Morita

2019

JARQ

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Forage rice (Oryza sativa L.) must be cost competitive with other fodders, and thus an important goal is increasing its dry matter (DM) and total digestible nutrient (TDN) yields, while reducing labor and costs. Although the direct seeding of rice does not have higher yield stability than transplanting, it has the potential to reduce labor and costs. The objective of this study was to determine the effects of seeding rate (2, 4, or 6 g m -2 ) and row spacing (10 or 30 cm) on DM and TDN yields in direct-seeded and double-harvested forage rice in a well-drained paddy field. The seeding rate did not affect the total DM and TDN yields of the first and second crops, although those total yields were higher at 10 cm row spacing than at 30 cm row spacing. The DM yield and tiller number of the first crop increased with increasing seeding rate. Both were higher at 10 cm row spacing than at 30 cm row spacing. The seeding rate did not affect the DM and TDN yields of the second crop harvested at heading, although those yields were higher at 10 cm row spacing than at 30 cm row spacing. Neither seeding rate nor row spacing affected the DM and TDN yields of the second crop harvested at dough ripe. Thus, increasing the seeding rate is effective for increasing the DM and TDN yields of the first crop and reducing row spacing is effective for increasing total DM and TDN yields of the first and second crops. This cultivation method is expected to facilitate forage rice production by reducing labor and costs in temperate regions.

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Section: Discussionmentioning

confidence: 99%

Dry Matter Yield Response to Seeding Rate and Row Spacing in Direct-seeded and Double-harvested Forage Rice

Nakano

Hattori

Morita

2019

JARQ

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“…Subsequent research (Oba & Swift, 2014) showed that this conclusion was based on the inclusion of the hulless variety Falcon (Helm et al., 1996) shown to have high fiber digestibility. Researchers have continued to find varietal differences in forage nutritive value of barley (Gill et al., 2013; Nakano et al., 2013; Surber, Stowe et al., 2001; Surber et al., 2002), but breeding programs did not take the information to the crossing and selection levels. Generally, FA has been the main factor in the choice of cereal forage types.…”

Section: Introductionmentioning

confidence: 99%

Breeding strategies in evaluation of forage barley

et al. 2021

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Producers on the Canadian Prairies grow barley (Hordeum vulgare L.) as a forage crop for ruminants, especially cattle. The purpose of our study was to determine methods to improve our selection of barley lines with superior forage value for ruminants. Data from the Western Cooperative Forage Barley Registration Test were used with permission of the Prairie Recommending Committee for Oat and Barley (PRCOB) and the breeders. Data were analyzed from 20 environments collected from 3 yr (2012–2014) and seven sites. We measured forage accumulation (FA) at the soft dough stage, five nutritive value traits, and three derived cow–calf variables. Although the variation in FA and forage nutritive value traits attributed to environment (E) was large, significant genotypic (G) effects were found for all traits measured. Whereas G× E effects were also significant, the mean square effect for G was up to 40 times higher than the mean squares for G×E. The proportion of variance attributed to G was greater for nutritive value traits than for FA. Significance of G means there was variability in the germplasm tested, and improvement through selection should be possible. The two parametric methods of stability analyses (Francis–Kannenberg method and Eberhart–Russell method) often identified the same lines as superior. Lines that were superior for FA and carrying capacity (cow on swath grazing, CC) were often different from those identified as superior for nutritive value, empty body weight gain (cow, EBWG) and average daily gain (backgrounding calf, ADG). A nonparametric method used to determine dynamic stability (Nassar–Hühn method) identified different lines as superior from the parametric methods. Breeders can use a combination of these selection criteria in breeding forage barley varieties with enhanced forage value for ruminants.

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“…β-Glucan and flavonoids present in barley grain have received attention due to their biomedical effects 6,7 . In south western Japan, barley, which is generally sown in late November after harvesting rice in early October as a double-cropping system, is a very important crop and studies on using barley for whole-crop silage as well as for food are in progress 8 .…”

Section: Introductionmentioning

confidence: 99%

Barley Yield Response to Nitrogen Application under Different Weather Conditions

Tanaka

Nakano

2019

Sci Rep

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Barley, one of the most important crops worldwide, will be exposed to high air temperatures as a result of global warming. Since global warming is projected to progress with annual fluctuations, weather-adaptive cultivation techniques are needed in the area of barley production. This study aimed to determine the effect of nitrogen (N) application rate at heading on the grain yield of barley grown under different weather conditions based on two years of field experiments. Grain yield increased markedly with increasing N application rate in the 2017–2018 cropping season but not in the 2016–2017 cropping season. In contrast, late-emerging tillers clearly increased with increasing N application rate in the 2016–2017 cropping season but not in the 2017–2018 cropping season. Plants grown in the 2016–2017 cropping season produced relatively few grains due to the short period of tillering as a results of high air temperatures compared with those grown in the 2017–2018 crop season. Thus, in the 2016–2017 cropping season, N application could be used for the production of late-emerging tillers as a consequence of the limited sink capacity, whereas, in the 2017–2018 cropping season, it could be used effectively to increase grain yield.

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Yield and Nutritive Value Responses of Forage Barley Cultivars and Lines

Cited by 3 publications

References 20 publications

Dry Matter Yield Response to Seeding Rate and Row Spacing in Direct-seeded and Double-harvested Forage Rice

Dry Matter Yield Response to Seeding Rate and Row Spacing in Direct-seeded and Double-harvested Forage Rice

Breeding strategies in evaluation of forage barley

Barley Yield Response to Nitrogen Application under Different Weather Conditions

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