Results 71 to 80 of about 821 (184)

Hydrangea virescence. I.- Description of the disease and its transmission to differential host plant Catharanthus Roseus by Cucusta Subinclusa

open access: yes, 1986
A virescence disease has recently been observed in France on Hydrangea macrophylla. This ornamental plant is cultivated in a rather particular way, comprising two successive phases : "production of mature plants" and "production of flowering plants ...
Poitevin, J.P.   +4 more
core  

Soil Conservation Measures of the Highway and Its Ecological Benefit——Taking YichangⅣ,Hubei,Hurongxi Highway as a Case

open access: yesShuitu baochi yanjiu, 2007
Based on YichangⅣ,Hubei,Hurongxi highway,the situation of the soil and water loss in the highway’s slope and spoil disposal area was analyzed,also the kinds and the layout of the soil conservation measures were studied.The results showed that it was ...
ZHANG Rui~1 ZHANG Hong-jiang~1 JIANG Yu-lin~2 CHEN Zong-wei~2 CHENG Jin-hua~1 CHEN Xue-ping~2
doaj  

La virescence de l’hortensia. I. - Description de la maladie et transmission par Cuscuta subinclusa à un hôte différentiel, Catharanthus roseus

open access: yes, 1986
International audienceA virescence disease has recently been observed in France on Hydrangea macrophylla. This ornamental plant is cultivated in a rather particular way, comprising two successive phases : "production of mature plants" and "production of ...
Poitevin, J.P.   +4 more
core  

Etude de la transmission par Orosius cellulosus (Lindbert) (Homopt. Cicadellidae) de la virescence florale du cotonnier et de Sida sp. [PDF]

open access: yes, 1973
Le rôle vecteur d'O, cellulosus dans la transmission de la virescence florale du cotonnier est pleinement établi. Plus de 250 transmissions ont été réussies de cotonnier (G. hirsutum L.) à cotonnier, de cotonnier à Sida cordifolia L. (Malvaceae) et de S.
Van Offeren, A.L.   +2 more
core  

Molecular identification of two phytoplasma strains associated with the gladiolus virescence disease in Iran

open access: yes
Severe symptoms of virescence in gladiolus flowers were observed in the Chaharmahal-Bakhtiari province of Iran in 2023. In the areas surveyed the disease incidence ranged from 5% to 40% and has a substantial economic impact, posing a serious threat to ...
Bertaccini A., Babaei G., Siampour M.
core   +1 more source

Virescence of tenweeks stock associated to phytoplasma infection in Sicily (S.Davino, A.Calari, M.Davino, M.Tessitori, A.Bertaccini & M.G.Bellardi) . 12-15.11.2007. Bullettin of Insectology 60(2), 279- 280.

open access: yes, 2007
In April 2007, a severe disease occurred in Sicily (Italy) in a glasshouse cultivation of tenweeks stock (Matthiola incana R. Br.; Brassicaceae) belonging to the cultivar White-Beach.
CALARI, ALBERTO   +5 more
core   +1 more source

Hydrangea virescence. II - Diagnosis by fluorescence microscopy and detection of infection in resin-embedded samples with bright field and phase contrast microscopy

open access: yes, 1986
We have investigated the mild virescence disease of Hydrangea macrophylla by the use of the fluorochrome bisbenzimid H, Hoechst reagent 33258. In the sieve tubes of virescent plants, brilliant white-blue fluorescence was observed under ultra-violet ...
Marie-Thérèse COUSIN   +7 more
core   +1 more source

Severe Diseases Induced by Viruses and Phytoplasmas in Hydrangea in Italy

open access: yes, 2015
Epidemiological surveys were carried out in Liguria and Lazio regions to detect virus and phytoplasma infections in Hydrangea machrophylla. Plants showing stunting, flower virescence and phyllody, yellowing, necrosis and redness of the leaf edge ...
PALTRINIERI, SAMANTA   +11 more
core   +1 more source

Characterisation of the tolerance to the beet leafhopper transmitted virescence agent phytoplasma in the PI128655 accession of Solanum peruvianum

open access: yes, 2014
International audienceIn 1992, Thomas and Hassan reported an apparent immunity and tolerance to the beet leafhopper transmitted virescence agent (BLTVA) phytoplasma in the PI128655 accession of Solanum peruvianum (Plant Disease 76: 139).
Garcion, Christophe   +2 more
core   +1 more source

Gamma Rays and EMS Induced Chlorophyll Mutations in Grasspea (Lathyrus sativus L.)

open access: yesInternational Journal of Bio-Resource and Stress Management, 2019
The present investigation was undertaken at department of Genetics and Plant Breeding, BCKV, Mohanpur Nadia (W.B.). A comparative study of frequency and spectrum of chlorophyll mutations induced by Gamma rays (400, 500 and 600 Gy), EMS (0.5% and 1%) and
Prabhat K. Singh   +3 more
doaj  

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