Genetic resources in high-rainfall hill pastures of New Zealand

Forde, M. B.; Suckling, F. E. T.

doi:10.1080/00288233.1980.10430785

Cited by 22 publications

(13 citation statements)

References 10 publications

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“…factorial analysis followed by a clustering method) has been used by Falcinelli et al (1987) (Forde & Suckling, 1980); between perennity and ceno-ecological indices in Romania (Kovacs, 1981) …”

Section: Discussionmentioning

confidence: 99%

Agronomic evaluation of perennial ryegrass wild populations from Ireland for use in French plant breeding programmes

Charmet¹,

Bion²,

Balfourier³

1989

Agronomie

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(Figs. 2 et 3). Les 4 premières composantes expliquent 85% de l'inertie totale du nuage, avec un premier axe très corrélé positivement à toutes les notes de vigueur et à la résistance au froid. L'axe 2 oppose l'aiternativité à la tardiveté d'épiaison tandis que l'axe 3 oppose la sensibilité à la rouille et à la remontaison.Une classification hiérarchique ascendante à partir des 6 premières composantes principales permet d'obtenir une partition en 4 classes (Fig. 1) (Fig. 4)

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Section: Discussionmentioning

confidence: 99%

Agronomic evaluation of perennial ryegrass wild populations from Ireland for use in French plant breeding programmes

Charmet¹,

Bion²,

Balfourier³

1989

Agronomie

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“…S. Easton inter-pollinated a subset of plants from the same ryegrass collection (Forde & Suckling 1980) to create a population of half-sibling (HS) families. The HS families were tested in lowland and hill country (Easton 1988).…”

Section: Methodsmentioning

confidence: 99%

“…Assuming that the Ballantrae resident ryegrass was typical of the hill-country collection (Forde & Suckling 1980), Populations C and E, selected from the collection, have moved from this starting point. Population C was expected to be coarser than E, but despite a different breeding history this was not the case.…”

Section: Adaptive Value Of Morphogenetic Traitsmentioning

confidence: 99%

“…Forde & Suckling (1980) documented a range of morphological types within the collection, including vigorous, erect, and coarseleaved plants among ecotypes from eastern districts of the North Island. In 1979, groups of plants of different type were split and transplanted to constitute dense plots at the Ballantrae hill-country research farm, 20 km north-east of Palmerston North (described by Lambert et al 1983).…”

Section: Introductionmentioning

confidence: 99%

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Morphogenetic adaptation to defoliation and soil fertility in perennial ryegrass (Lolium perenne)

Hazard

Barker

Easton³

2001

New Zealand Journal of Agricultural Research

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Morphogenetic adaptation, plasticity, and mortality of four perennial ryegrass populations, representing different selection histories, were compared in response to soil fertility and to defoliation severity. In a second experiment, morphogenetic adaptation and plasticity in response to defoliation frequency were studied in two divergent sub-populations. Genetic variability was found between ryegrass populations for leaf appearance and elongation rates, leaf size, and tiller number. All populations exhibited plasticity in response to defoliation severity and soil fertility. There was no genetic variation for plasticity, the morphological response to the environment. defoliation. Both leaf length and rate of leaf appearance were positively correlated with greater mortality. The ryegrass ideotype for hill country is a compromise between yield and persistence.

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“…Finally, in herbage grasses, most work relating to the relationships between ecological and agronomic traits has been aimed at perennial ryegrass in Europe (studies undertaken by the Welsh Plant Breeding Station: Breese, 1966, 1968;Lorenzetti et al, 1971;Tyler andChorlton, 1976, 1978;Tyler et al, 1984;Humphreys and Eagles, 1988) and also in New Zealand (Forde and Suckling, 1980). But some studies have also been performed on cocksfoot (Tyler, 1979;Lumaret, 1984) and tall fescue (Veronesi and Falcinelli, 1988 Charmet et al, 1990).…”

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confidence: 99%

Relationships between agronomic characters and ecogeographical factors in a collection of French perennial ryegrass populations

Balfourier

Charmet

1991

Agronomie

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Summary — Relationships between agronomic traits of natural populations of perennial ryegrass and ecogeographical (ie climatic, ecological and geographical) factors of their original sites were studied using multivariate correspondence analysis. Initially, only agronomic variables were used to describe relationships within agronomic traits. These different variables were projected on the same 1-2 factorial plan. The

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Genetic resources in high-rainfall hill pastures of New Zealand

Cited by 22 publications

References 10 publications

Agronomic evaluation of perennial ryegrass wild populations from Ireland for use in French plant breeding programmes

Agronomic evaluation of perennial ryegrass wild populations from Ireland for use in French plant breeding programmes

Morphogenetic adaptation to defoliation and soil fertility in perennial ryegrass (Lolium perenne)

Relationships between agronomic characters and ecogeographical factors in a collection of French perennial ryegrass populations

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