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Titolo:
EFFECTS OF ASCOCHYTA BLIGHT (MYCOSPHAERELLA-PINODES BERK-AND-BLOX) ONBIOMASS PRODUCTION, SEED NUMBER AND SEED WEIGHT OF DRIED-PEA (PISUM-SATIVUM L) AS AFFECTED BY PLANT-GROWTH STAGE AND DISEASE INTENSITY
Autore:
GARRY G; JEUFFROY MH; TIVOLI B;
Indirizzi:
INRA,PATHOL VEGETALE STN,BP 29 F-35650 LE RHEU FRANCE
Titolo Testata:
Annals of Applied Biology
fascicolo: 1, volume: 132, anno: 1998,
pagine: 49 - 59
SICI:
0003-4746(1998)132:1<49:EOAB(B>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
POD;
Keywords:
ASCOCHYTA BLIGHT; DRIED-PEA; SEED NUMBER; SEED WEIGHT; BIOMASS PRODUCTION; PLANT STAGE; DISEASE INTENSITY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
G. Garry et al., "EFFECTS OF ASCOCHYTA BLIGHT (MYCOSPHAERELLA-PINODES BERK-AND-BLOX) ONBIOMASS PRODUCTION, SEED NUMBER AND SEED WEIGHT OF DRIED-PEA (PISUM-SATIVUM L) AS AFFECTED BY PLANT-GROWTH STAGE AND DISEASE INTENSITY", Annals of Applied Biology, 132(1), 1998, pp. 49-59

Abstract

The effects of ascochyta blight due to Mycosphaerella pinodes on biomass production, seed number and seed weight according to physiologicalstage and disease intensity were examined. Pea plants were grown in aglasshouse and inoculated with various concentrations of conidia before flowering, at flowering of the second fructifer node (FLO2), at thestart of seed filling of the first fructifer node (FSSA1) or the second fructifer node (FSSA2). Uninoculated plants were used as controls. Whatever the stage of inoculation (FLO2 or FSSA2), the disease reducedplant growth and the decrease depended on disease intensity on foliarorgans. The seed number was reduced for plants inoculated before flowering, at FLO2 and at FSSA1 and the reduction was linked to disease intensity on foliar organs. At each node, seed number was reduced if thedisease occurred before FSSA of the node. The mean seed weight per plant was decreased in plants inoculated at FSSA1 and FSSA2 and the higher the disease intensity on aerials organs, the greater was the reduction of the seed weight. For individual nodes, only inoculations after the beginning of seed filling had a negative effect on mean seed weight at harvest. We found that the decrease of seed number induced by thedisease was proportional to aerial biomass production before the end of the period of seed production.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 10:44:17