Plant morphological characteristics and resistance to simulated trampling

Sun, David; Liddle, M. J.

doi:10.1007/bf02394666

Cited by 68 publications

(81 citation statements)

References 16 publications

(20 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The genetic materials used revealed wide genetic diversity for all the parameters studied under controlled greenhouse conditions, similar to that observed among cultivars/ecotypes of the same species in field trials (Costa et al, 1989;Alcantara et al, 1991;Sun & Liddle, 1993).…”

Section: % (H-31)supporting

confidence: 68%

“…Due to the important role of guinea grass in the expansion of animal production, a number of research projects have been carried out on this species in recent years, covering a wide range of topics including: plant breeding (Sukhchain & Sidhu, 1991;Noirot, 1993;Sukhchain & Sidhu, 1993); cytology (Nakagawa et al, 1993;Hamoud et al, 1994;Naumova & Willemse, 1995); herbage yield and/ or chemical composition (Hill et al, 1989;Santana, 1991;Bayorbor et al, 1992;Kawamoto et al, 1992;Singh et al, 1995); morphology (Costa et al, 1989;Alcantara et al, 1991); trampling resistance (Sun & Liddle, 1993); adaptation to acid soils (Thomas & Lapointe, 1989) among others.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Differential vegetative and reproductive performances among fifteen guinea grass hybrids

Usberti-Filho

Usberti²,

Paterniani

2002

Pesq. agropec. bras.

View full text Add to dashboard Cite

_ The main scope of this work was to detect (Panicum maximum Jacq.) genotype differences as to morphoagronomic and seed quality indices, and to establish character correlations useful for determining vegetative and reproductive trends. Besides the flowering cycle, eight phenological and two seed quality traits were scored in a greenhouse randomized complete block experiment, as follows: plant height (PH), reproductive tiller number/overall tiller number (RTN/OTN), panicle number/reproductive tillers (PN/RT), leaf length (LL), leaf width (LW), panicle length (PL), fresh weight (FW), dry weight (DW), number of seeds/g (NS/G) and seed sample physical purity (SPP). Very-early and early-flowering hybrids consistently showed the highest correlation values among flowering cycle and RTN/OTN (r = -0.59**), PN/RT (r = -0.48**), NS/G (r = -0.88**) and SPP (r = -0.80**) (reproductive parameters) while intermediate and late-flowering hybrids presented the highest values for LL (r = 0.53**), LW (r = 0.60**), PL (r = 0.77**), FW (r = 0.78**) and DW (r = 0.85**) (vegetative traits). The implications of these results for plant breeding and forage management purposes are discussed.Index terms: Panicum maximum, flowering, agronomic characters, vegetative propagation. Diferenças no desempenho vegetativo e reprodutivo entre quinze híbridos de capim-coloniãoResumo _ O principal objetivo deste trabalho foi o de determinar as tendências de desempenho vegetativo e reprodutivo de híbridos de capim-colonião (Panicum maximum Jacq.) recém desenvolvidos, com os genótipos variando quanto ao ciclo de florescimento (desde muito precoces até tardios). Além do ciclo do florescimento, oito parâmetros fenológicos e dois de qualidade das sementes foram testados, em experimento em blocos completos ao acaso em casa de vegetação, como segue: altura da planta (AP), número de perfilhos reprodutivos/número total de perfilhos (NPR/NTP), número de panículas/perfilhos reprodutivos (NP/PR), comprimento da folha (CF), largura da folha (LF), comprimento da panícula (CP), peso fresco (PF), peso seco (PS), número de sementes/g (NS/G) e pureza física das amostras de sementes (PFS). Os híbridos precoces e semiprecoces apresentaram sempre os maiores valores de correlação obtidos entre ciclos de florescimento e NPR/NTP (r = -0,59**), NP/PR (r = -0,48**), NS/G (r = -0,88**) e PFS (r = -0,80**) (parâmetros reprodutivos) enquanto os híbridos intermediários e tardios apresentaram valores de correlação mais elevados de CF (r = 0,53**), LF (r = 0,60**), CP (r = 0,77**), PF (r = 0,78**) e PS (r = 0,85**) (características vegetativas). Discutem-se as implicações desses resultados para o melhoramento genético e o manejo de pastagens.Termos para indexação: Panicum maximum, floração, características agronômicas, propagação vegetativa.

show abstract

Section: % (H-31)supporting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Differential vegetative and reproductive performances among fifteen guinea grass hybrids

Usberti-Filho

Usberti²,

Paterniani

2002

Pesq. agropec. bras.

View full text Add to dashboard Cite

show abstract

“…Overall, tolerance to trampling, i.e. the ability of vegetation to withstand a cycle of disturbance and recover, seems primarily a function of stature, erectness, and growth form (Cole 1995;Sun and Liddle 1993). The most tolerant plants are annuals, caespitose graminoids, rosette hemicryptophytes, and geophytes, whereas the least tolerant plants are the chamaephytes.…”

Section: Discussionmentioning

confidence: 99%

The response of plant community diversity to alien invasion: evidence from a sand dune time series

2014

View full text Add to dashboard Cite

This study examines the process of invasion of coastal dunes in north-eastern Italy along a 60-year time series considering alien attributes (origin, residence time, invasive status, and growth form strategy) and habitat properties (species richness, diversity and evenness, proportion of aliens, and proportion of focal species). Vegetation changes through time were investigated in four sandy coastal habitats, using a fine-scale diachronic approach that compared vegetation data collected by use of the same procedure, in four time periods, from the 1950s to 2011. Our analysis revealed an overall significant decline of species richness over the last six decades. Further, both the average number of species per plot and the mean focal species proportion were proved to be negatively affected by the increasing proportion of alien species at plot level. The severity of the impact, however, was found to be determined by a combination of species attributes, habitat properties, and human disturbance suggesting that alien species should be referred to as ''passengers'' and not as ''drivers'' of ecosystem change. Passenger alien species are those which take advantage of disturbances or other changes to which they are adapted but that lead to a decline in native biodiversity. Their spread is facilitated by widespread anthropogenic environmental alterations, which create new, suitable habitats, and ensure human-assisted dispersal, reducing the distinctiveness of plant communities and inducing a process of biotic homogenization.

show abstract

“…However, even in the absence of intense tourism and recreational facilities, dunes are particularly susceptible to destabilisation through recreational pressure involving humans, animals and vehicles (Andersen, 1995;Burden and Randerson, 1972;Curr et al, 2000;Hylgaard and Liddle, 1981;Kerbiriou et al, 2008;Kindermann and Gormally, 2010;Liddle and Greig-Smith, 1975a,b;Luckenbach and Bury, 1983;Quigley, 1991;Sun and Liddle, 1993). Because of this, conflicts frequently arise between those who want to use the dunes for recreational purposes and those who wish to see these fragile ecosystems protected.…”

Section: Coastal Dune Systems and Their Conservation Under European Lmentioning

confidence: 99%

Stakeholder perceptions of recreational and management impacts on protected coastal dune systems: A comparison of three European countries

Kindermann

Gormally

2013

Land Use Policy

View full text Add to dashboard Cite

Plant morphological characteristics and resistance to simulated trampling

Cited by 68 publications

References 16 publications

Differential vegetative and reproductive performances among fifteen guinea grass hybrids

Differential vegetative and reproductive performances among fifteen guinea grass hybrids

The response of plant community diversity to alien invasion: evidence from a sand dune time series

Stakeholder perceptions of recreational and management impacts on protected coastal dune systems: A comparison of three European countries

Contact Info

Product

Resources

About