Contribution and Nutritive Value of the Major Plant Components of Oats Through Progressive Stages of Development

Kilcher, M. R.; Troelsen, J. E.

doi:10.4141/cjps73-047

Cited by 32 publications

(19 citation statements)

References 3 publications

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“…Kilcher and Troelsen (1973) and Cherney and Martin (1982b) reported that leaves have higher forage quality than stems in cereals, hence Barley-IC and Oat-IC mixtures had higher (P ≤ 0.001) protein content than either spring cereal grown as a monocrop (Table 5). These findings agree with those of Baron et al (1992).…”

Section: Discussionmentioning

confidence: 99%

Cropping systems for annual forage production in northeast Saskatchewan

McCartney¹,

Townley-Smith²,

Vaage³

et al. 2004

Can. J. Plant Sci.

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, J. 2004. Cropping systems for annual forage production in northeast Saskatchewan. Can. J. Plant Sci. 84: [187][188][189][190][191][192][193][194]. Herbage production for silage and pasture production of annual species was investigated near Melfort in northeastern Saskatchewan. Barley (Hordeum vulgare L.) and oats (Avena sativa L.) were seeded as spring monocrops (SMC) and in binary intercrop (IC) mixtures with fall species including winter wheat (Triticum aestivum L.), fall rye (Secale cereale L.), winter triticale (X Triticosecale Wittmack L.), biennial Italian ryegrass (Lolium multiflorum Lam.) and annual Westerwolds ryegrass (Lolium multiflorum Lam.). Fall species were also seeded as monocrops (FMC). Silage Spring harvest occurred when barley (early-silage cut) and oats (late-silage cut) reached soft dough stage and again late in the autumn. An additional deferred grazing (DG) treatment containing each one fall species was harvested once in the autumn. Mean ranking of spring herbage silage yield was Oat-SMC (100%) > Oat-IC (91%) > Barley-SMC (83%) = Barley-IC (78%) > late-cut FMC (53%) > early-cut FMC (42%) (P ≤ 0.001). SilageSpring herbage yield of IC combinations was similar, but FMCs containing annual ryegrass were 26% to 34% (P ≤ .01) greater than other treatments. Crude protein content (g kg -1 ) was 14 to 35% higher (P ≤ 0.001) in IC systems than the corresponding SMC. Neutraleutral detergent fibre (NDF) and acid detergent fibre (ADF) content (g kg -1 ) of barley based systems was 15 and 22% lower (P ≤ 0.001) than those with oats. Ranking and relative productivity for fall pasture was DG (100%) > early-cut FMC (67%) > late-cut FMC (49%) > Barley-IC (30%) > Oat-IC (24%) = Barley-SMC (14%) (P ≤ 0.001). Cropping systems that contained no spring cereal produced 2.37-fold higher (P ≤ 0.001) fall pasture yield than those with spring cereals. Among FMCs, ICs and DG systems, mean yield of ryegrass treatments were generally higher (P ≤ 0.05) than that of fall cereals. . La récolte a eu lieu quand l'orge (coupe hâtive) et l'avoine (coupe tardive) avaient atteint le stade pâteux mou puis de nouveau à la fin de l'automne. On a aussi essayé un régime de mise à l'herbe tardive (MHT) en vertu duquel chaque espèce automnale a été récoltée une fois à l'automne. Le rendement printanier moyen en herbages se classe comme suit : avoine-MCP (100 %) > avoine CI (91 %) > orge-MCP (83 %) = orge-CI (78 %) > MCA coupe tardive (53 %) > MCA coupe hâtive (42 %) (P ≤ 0,001). Les combinaisons CI donnent un rendement printanier en herbages similaire, mais le rendement de la MCA de ray-grass annuel dépasse le rendement des autres régimes de 26 à 34 % (P ≤ 0,01). Les systèmes à CI se caractérisent par une concentration de protéines brutes (en g par kg) de 14 à 35 % plus élevée (P ≤ 0,001) que les régimes MCP correspondants. Les systèmes à base d'orge donnent une teneur en fibres au détergent neutre (FDN) et en fibres au détergent acide (FDA) (en g par kg) de 15 % et de 22 % inférieure à celle des systèmes à base d'avoine. Le classement...

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Section: Discussionmentioning

confidence: 99%

Cropping systems for annual forage production in northeast Saskatchewan

McCartney¹,

Townley-Smith²,

Vaage³

et al. 2004

Can. J. Plant Sci.

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“…This is particularly so with cereal forages, where a rapid accumulation of stem dry matter occurs up to anthesis and, by then, the percentage contribution of leaf biomass to the total harvest is relatively small (Kilcher & Troelsen 1973;Cherney & Martin 1982). However, the decline in the digestibility of leaf with age was relatively slow (Cherney & Martin 1982;Terry & Tilley 1964).…”

Section: Introductionmentioning

confidence: 94%

Relationship between growth stage and digestible organic matter in triticale

1989

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S U M M A R YIn two experiments the yield, digestibility, protein and cell wall contents of several autumn-sown triticale cultivars were compared with rye at defined growth stages. Yields at each growth stage were highest in the triticale cultivars. The content of leaf blade and sheath fell with increased maturity while stem and ear content increased. There were differences between cultivars in the contribution of individual stem internodes. Digestibility also declined with maturity for all plant parts, and differences were apparent between pla"nt parts and between cultivars. Leaf blade showed a slow decline in digestibility whereas stem digestibility showed a rapid reduction so that, at growth stage 43, young stem internodes were of much higher quality than older ones. Spring-type triticales (A208 and A476) had the highest digestibility at stages from flag leaf emergence to anthesis. The relationships between digestibility, plant part contents and cell wall characteristics are discussed.

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“…At harvest, oats had the highest ADF concentration with no differences among the other cereals. Leaves have a lower cell wall concentration than stems and grain has a lower fiber concentration than either stems or leaves (Kilcher and Troelsen 1973;Cherney and Marten 1982b). Thus, a lower fiber concentration early in the season before the leaves started to die and late in the season as the grain filled would be expected.…”

Section: Chemical Composition Of Crops During Growthmentioning

confidence: 99%

Influence of stage of maturity on yield components and chemical composition of cereal grain silages

Khorasani¹,

Jedel²,

Helm³

et al. 1997

Can. J. Anim. Sci.

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. 1997. Influence of stage of maturity on yield components and chemical composition of cereal grain silages. Can. J. Anim. Sci. 77: 259-267. The objectives of this study were to determine changes in yield of total grain, stem and leaf DM, leaf:stem ratio and chemical composition during the growth period (boot to softdough stage) and during ensiling of whole-crop barley (Hordeum vulgare L. 'Noble'), oats (Avena sativa L. 'Cascade'), triticale (X Triticosecale Rimpani Witt. 'Wapiti'), and a 1:1 barley (Noble):winter triticale (cv. Pika) mixture. Data for whole-crop cereals were compared with a second cut alfalfa (Medicago sativa L. 'Algonquin'). Crude protein and nitrate concentrations of all crops decreased with advancing maturity. Neutral detergent fiber (NDF), acid detergent fiber (ADF), and cellulose concentrations of all crops initially increased and then decreased with advancing maturity whereas acid detergent lignin (ADL) concentrations increased with advancing maturity. During the growth phase, oats and triticale had higher NDF and ADF concentrations, but by harvesting these differences had disappeared. Leaf as percentage of total DM and leaf:stem ratios were higher and the stem as percentage of total DM was lower for the barley:winter triticale mixture compared with the cereal monocrops. Cereal forages were ranked in order of decreasing quality as barley, barley:winter triticale, triticale, and oats.Key words: Alfalfa, barley, oats, triticale, silage, quality Khorasani, G. R., Jedel, P. E., Helm, J. H. et Kennelly, J. J. 1997. Influence du stade de croissance sur les composantes du rendement et sur la composition chimique des ensilages de céréales plante entière. Can. J. Anim. Sci. 77: 259-267. L'objet de nos travaux était de suivre l'évolution du rendement total en grain, en tiges et en feuilles des céréales, ainsi que celle du rapport feuilles-tiges et de la composition chimique durant la période de croissance soit de la fin montaison au stade pâteux mou et durant la conservation en silo. Les céréales plante entière considérées étaient l'orge (Hordeum vulgare L. 'Noble'), l'avoine (Avena sativa L. 'Cascade'), le triticale (X Triticosecale Rimpani Witt. 'Wapiti') et une association à parts égales d'orge (Noble) et de triticale d'hiver (Pika). Les données recueillies étaient comparées à celles d'un premier regain de luzerne (Medicago sativa L. 'Algonquin'). Les concentrations de protéines et de nitrates dans toutes les cultures diminuaient en fonction du degré d'avancement de la végétation. Après une hausse initiale, les concentrations de fibres au détergent neutre (NDF), de lignocellulose (ADF) et de cellulose diminuaient avec l'avancement de la culture alors que les teneurs en LDA (lignine au détergent acide) augmentait régulièrement tout au long de la croissance. Durant la phase de croissance, l'avoine et le triticale révélaient des concentrations de NDF et de lignocellulose plus élevées, mais à la récolte ces différences avaient disparu. La part des feuilles dans le rendement total (m.s.) et le rappor...

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Contribution and Nutritive Value of the Major Plant Components of Oats Through Progressive Stages of Development

Cited by 32 publications

References 3 publications

Cropping systems for annual forage production in northeast Saskatchewan

Cropping systems for annual forage production in northeast Saskatchewan

Relationship between growth stage and digestible organic matter in triticale

Influence of stage of maturity on yield components and chemical composition of cereal grain silages

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