Results 71 to 80 of about 821 (184)
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
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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
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]
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
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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.
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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
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
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Severe Diseases Induced by Viruses and Phytoplasmas in Hydrangea in Italy
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
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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
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Gamma Rays and EMS Induced Chlorophyll Mutations in Grasspea (Lathyrus sativus L.)
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
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