Relations source-puits et sélection du maïs pour la  résistance à la pourriture des tiges

Barrière, Yves; Panouillé, A.; Cassini, Roger; Duburcq, Jean-Benoît; Dupin, M.

doi:10.1051/agro:19810813

Cited by 3 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…We reveal, furthermore, a new effect of a So-Si ratio change on the fruit quality potential: when the sink is decreased by removal of many hands, the fruit susceptibility to crown rot decreases. Few studies on various plants have linked the importance of So-Si ratio, and thus photosynthetic assimilate distribution, in plant-pathogen interactions (Dood, 1980;Barrière et al, 1981;Barrière, 1985;Pegg, 1986;Seetharama et al, 1991). However, in the case of bananas, the present results contrast with the previously reported observation that modifying the So-Si ratio has no effect on fruit susceptibility to anthracnose or on the fruit conservation potential (Chillet et al, 2006).…”

Section: Discussioncontrasting

confidence: 99%

Hand position on the bunch and source–sink ratio influence the banana fruit susceptibility to crown rot disease

Lassois

Bastiaanse

Chillet

et al. 2010

Annals of Applied Biology

View full text Add to dashboard Cite

Keywords AbstractThe postharvest development of crown rot of bananas depends notably on the fruit susceptibility to this disease at harvest. It has been shown that fruit susceptibility to crown rot is variable and it was suggested that this depends on environmental preharvest factors. However, little is known about the preharvest factors influencing this susceptibility. The aim of this work was to evaluate the extent to which fruit filling characteristics during growth and the fruit development stage influence the banana susceptibility to crown rot. This involved evaluating the influence of (a) the fruit position at different levels of the banana bunch (hands) and (b) changing the source-sink ratio (So-Si ratio), on the fruit susceptibility to crown rot. The fruit susceptibility was determined by measuring the internal necrotic surface (INS) after artificial inoculation of Colletotrichum musae. A linear correlation (r = −0.95) was found between the hand position on the bunch and the INS. The So-Si ratio was found to influence the pomological characteristics of the fruits and their susceptibility to crown rot. Fruits of bunches from which six hands were removed (two hands remaining on the bunch) proved to be significantly less susceptible to crown rot (INS = 138.3 mm 2 ) than those from bunches with eight hands (INS = 237.9 mm 2 ). The banana susceptibility to crown rot is thus likely to be influenced by the fruit development stage and filling characteristics. The present results highlight the importance of standardising hand sampling on a bunch when testing fruit susceptibility to crown rot. They also show that hand removal in the field has advantages in the context of integrated pest management, making it possible to reduce fruit susceptibility to crown rot while increasing fruit size.

show abstract

Section: Discussioncontrasting

confidence: 99%

Hand position on the bunch and source–sink ratio influence the banana fruit susceptibility to crown rot disease

Lassois

Bastiaanse

Chillet

et al. 2010

Annals of Applied Biology

View full text Add to dashboard Cite

show abstract

“…7,73 ± 0,6 3,57 ± 0,6 2,88 ± 0,4 8,90 ± 0,7 7.09 ± 0,6 4,68 ± 0,5 14,63 ± 1,1 1,78 ± 0,2 3,21 ± 0,4 . 0,72 ± 0,2 3,29 ± 0,3 4,14 ± 0,3 1,96 ± 0,1 un moment critique a partir duquel le puits physiologique constitue par les graines en train de grossir vide les racines et les tiges des glucides qui y etaient emmagasines (DODD 1980, BARRIERE et al 1981. BLANCHET et al (1982) ont d'ailleurs montre que la tige et les feuilles du tournesol atteignent leur contenu maximum en assimilats au stade de la floraison, puis transferent ensuite une partie de ces assimilats vers les graines.…”

Section: Moyenneunclassified

Relation Entre la Teneur en Sucres Réducteurs des Tissus du Tournesol (Helianthus annuus L.) et leur Invasion par Macrophomina phaseolina (Tassi) Goid.

Davet

Serieys

1987

Journal of Phytopathology

View full text Add to dashboard Cite

Relation between the amount of reducing sugars in sunflower tissues and their invasion by Macrophomina phaseolina (Tassi) Goid. Reducing sugars (R.S.) were measured with Bernfeld colorimetric method. In the roots, the amount of R.S. increased up to a maximum, then decreased from the beginning of flowering, and remained constant, at a very low level, from the outset of seed maturation. The same evolution was observed, with a delay of one week, in stem bases, but the amounts of R.S. were a little higher. Roots, and thereafter, stems, were invaded by Macrophomina phaseolina only after the minimum level of R.S.was reached. Varietal differences were observed, in a collection of sunflower hybrids, in response to invasion by M. phaseolina. R.S. levels in stem bases were higher in the resistant than in the susceptible hybrids.

show abstract

“…Il semblerait donc que, tout comme c'est le cas pour la pourriture des tiges du maïs (BARRIÈRE et al, 1981) (BLANCHET et al, 1983 …”

unclassified

Effet de quelques facteurs intrinsèques ou extrinsèques d'affaiblissement des tournesols sur leur sensibilité au dessèchement précoce

Davet¹,

Herbach²,

Michel³

et al. 1986

Agronomie

View full text Add to dashboard Cite

show abstract

Relations source-puits et sélection du maïs pour la résistance à la pourriture des tiges

Abstract: en-Chaussée, F 80200 Péronne ( * ) I. N. R. A., Station expérimentale du Mai's, F 40590 Saint-Martin-de-Hinx ( ** ) LN.R.A., Station de Pathologie végétale, Route de Saint-Cyr, F 78000 Versailles.

Cited by 3 publications

References 1 publication

Hand position on the bunch and source–sink ratio influence the banana fruit susceptibility to crown rot disease

Hand position on the bunch and source–sink ratio influence the banana fruit susceptibility to crown rot disease

Relation Entre la Teneur en Sucres Réducteurs des Tissus du Tournesol (Helianthus annuus L.) et leur Invasion par Macrophomina phaseolina (Tassi) Goid.

Effet de quelques facteurs intrinsèques ou extrinsèques d'affaiblissement des tournesols sur leur sensibilité au dessèchement précoce

Contact Info

Product

Resources

About