Morphological and Growth Characteristics of Perennial Grass Cultivars Grown under Semi-Arid Conditions of the Algerian High Plateaus

Mefti, Mohamed; Bouzerzour, H.; Abdelguerfi, A.; Nouar, Hind

doi:10.3923/ja.2008.138.147

Cited by 7 publications

(5 citation statements)

References 17 publications

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“…A positive correlation (r= 0.70, P < 0.0001) was found between spring biomass and plant height, which are two parameters determining plant production. A similar correlation was reported by Metfi et al [23] and Volaire [24] on perennial grasses. In summer, genotypes produced less biomass compared to other harvests because a majority of genotype ceased production during this period.…”

Section: Dry Matter Yieldsupporting

confidence: 91%

Characterization of cocksfoot (Dactylis glomerata L.) population for growth traits and summer dormancy

Zhouri¹,

Kallida²,

Shaimi³

et al. 2017

JMES

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Cocksfoot is one of the four most important forages in the world, it is persistent and summer drought tolerant. Under Mediterranean climate, one way to produce without irrigation is to use plants resistant to drought, such as some perennial grasses as cocksfoot. The present work was conducted during 2011/2012 cropping season to evaluate some traits of progeny generated from a cross between a summer dormant genotype Kasbah cv and a summer active genotype from Medly cv under Mediterranean climate.The aim of this study was to gather hybrids pools according to common features with relation to summer dormancy. Measurements of dry matter yield, heading date, plant height, plant growth rate, senescence and summer dormancy were taken for the 229 F1 hybrids. Results showed a large variability between hybrids for all traits. 4% of hybrids were more dormant than the parent Kasbah, 35 % of hybrids yielded more than Medly, 73.8 % of progeny exceeded parents growth rate, 60 % had the greatest biovolume, more important than both parents. Significant correlations (P <0.0001) were found between all traits except heading date and senescence. Cluster analysis (CA) revealed eight groups and subgroups which showed 80 % of phenotypical similarities within hybrids and parents.

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Section: Dry Matter Yieldsupporting

confidence: 91%

Characterization of cocksfoot (Dactylis glomerata L.) population for growth traits and summer dormancy

Zhouri¹,

Kallida²,

Shaimi³

et al. 2017

JMES

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“…Qiu et al (2008) reported that the greatest WUE variation occurred among growing stages rather than among irrigation treatments. Besides, WUE was positively associated with DM yield (R 2 = 0.641) as was reported by Saeed and El-Nadi (1997) and Mefti et al (2008). A significant relationship was observed between WUE and seed production (R 2 = 0.823) as was indicated in several studies such as Hu et al (2006) and Neal et al (2011).…”

Section: Discussionsupporting

confidence: 63%

“…But no relationship was observed between DM yield and RGR ( Figure 5). Mefti et al (2008) reported that DM yield performance was independent from RGR.…”

Section: Discussionmentioning

confidence: 99%

Agronomic performances of three vetch species growing under different drought levels

Mezni

Chaïbi

2014

Chilean J. Agric. Res.

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The current challenge of agriculture is to get the best yields while overcoming frequent water deficit conditions. The objective of this study was to compare performances of three vetch species (Vicia narbonensis L., V. sativa L., and V. villosa Roth) subjected to water stress. Plants were sown in pots under rainout shelter and submitted to four water regimes: control (100% field capacity [FC]), 80%, 60%, and 40% FC through 3 yr experiment. Results showed that V. narbonensis had the smallest declines in all the studied variables in response to water restriction but the highest water use efficiency (WUE) and stress tolerance index (STI) in both control and water-treated plants. This indicates the greater tolerance of this species to water constraint and its better water use. Vicia villosa was characterized by drastic declines in leaf area and DM yield (75% and 64%, respectively). It had also the smallest WUE and STI suggesting its low adaptation to water stress. Vicia sativa showed severe reductions in seed yield and yield components; accordingly, it was the most sensitive species in terms of seed yield. The three species implied avoidance strategies to cope with water stress. The different levels of drought tolerance explain the species ecological distribution in Tunisia.

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“…Nevertheless, although plant, shoot and root mass, and rooting depth, are important variables explaining leachate volume and uptake of N, as indicated by the regression analyses, there were some apparent differences among the grass species which could not be explained by these variables. Variation among the species in water‐use efficiency, which occurs in grasses (Mefti et al. , 2008), may have influenced rates of water uptake, and incidentally, nitrate absorption.…”

Section: Discussionmentioning

confidence: 99%

Influence of different forage grasses on nitrate capture and leaching loss from a pumice soil

Popay

Crush

2010

Grass and Forage Science

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Nitrogen (N) uptake and loss in leachate from a pulse of 15 N-labelled synthetic cow urine applied to a pumice soil were compared in a glasshouse lysimeter experiment among the grass species, Agrostis capillaris, Dactylis glomerata, Phalaris aquatica, Lolium multiflorum, L. perenne and a L. multiflorum ⁄ A. capillaris mixture. In addition, four L. perenne treatments investigated the effect of infection by Neotyphodium lolii strains. Leachate volumes and leachate nitrate concentrations were measured. At final harvest 24 weeks after sowing, dry matter (DM) mass of shoots and roots, plant N and 15 N contents, soil residual mineral N, and root diameters and lengths were measured. Endophyte had no effect on plant or nitrate variables. Lysimeters planted with L. perenne (pooled endophyte treatments) leached 48 mg of NO 3 -N compared with <3 mg N for the other grasses. Recovery of 15 N was highest in A. capillaris (0AE99), followed by D. glomerata and P. aquatica (0AE89), the L. multiflorum ⁄ A. capillaris mixture (0AE87), L. multiflorum (0AE60) and L. perenne (0AE44). Low 15 N recoveries and high leaching losses from L. perenne were associated with low plant and root masses of DM and low rooting depth. High aerial mass of DM, root systems extending below 20 cm and high root masses of DM in lysimeters with A. capillaris, P. aquatica and D. glomerata contributed to a high rate of nitrate interception by these species and low leachate losses. The L. multiflorum ⁄ A. capillaris mixture was intermediate between the two species for most of the variables measured.

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Morphological and Growth Characteristics of Perennial Grass Cultivars Grown under Semi-Arid Conditions of the Algerian High Plateaus

Cited by 7 publications

References 17 publications

Characterization of cocksfoot (Dactylis glomerata L.) population for growth traits and summer dormancy

Characterization of cocksfoot (Dactylis glomerata L.) population for growth traits and summer dormancy

Agronomic performances of three vetch species growing under different drought levels

Influence of different forage grasses on nitrate capture and leaching loss from a pumice soil

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