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Attempts to eliminate chrysanthemum stunt from chrysanthemum by meristem‐tip culture after heat‐treatment
Author(s) -
HOLLINGS M.,
STONE OLWEN M.
Publication year - 1970
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1970.tb04592.x
Subject(s) - biology , meristem , cutting , sowing , shoot , horticulture , botany
SUMMARY ‘Mistletoe’ chrysanthemums infected with stunt were grown at 35°C for 14–37 weeks, and meristem‐tips cultured from them at intervals. Of 337 meristems, seventy‐two survived to plants but their development took 50% longer than did that of stunt‐free meristem‐tips. All plants were symptomless for at least 5 weeks after planting in 75 mm pots of soil‐mix, and only three showed symptoms after 9 weeks. No more plants developed symptoms during the next 5 (winter) months, but between mid‐March and late May sixty‐seven did so. Only two plants were freed from stunt. ‘Mini‐cuttings’ rooted from shoot tips of infected chrysanthemums grown at 35°C for 37 weeks all developed stunt symptoms within 27 weeks.