Under severe condition, the losses due to stem rot disease may go up to 50-60 per cent (Kakade, 2007). 5. Tuberose, or Polianthes tuberosa, produces a heavily scented flower enjoyed by many gardeners, and sometimes used in perfume. The tuberose is a bulbous, herbaceous and perennial plant with a simple floral stem, which has an inflorescence at the end. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues. The leaves are long, narrow, linear, grass-like, light green, and arise in rosette. It causes sucker rot, stem rot, basal stem rot, rhizome rot, and as well as premature death of affected plants. Aerial stem rot: Affected stem tissue become desiccated under dry conditions, resulting in a dry, brownish to black shriveled stem. Tuberose is an ornamental flower crop of commercial importance. BIOINFOLET - A Quarterly Journal of Life SciencesYear : 2017, Volume : 14, Issue : 1 The infected leaves get detached from the plant. STUDIES ON STEM ROT OF TUBEROSE (Polianthes tuberosa L.) CAUSED BY Sclerotium rolfsii Sacc. The fungus that The treatment was at par with bulb dip and soil application of T. viride. They can also survive on straw, which is buried in the soil. Fan shaped mycelia strand of the fungus appear at the base of infected plants. 29) Under severe conditions the losses go up to 50 60 per cent. Tuberose is half-hardy, perennial, bulbous plant. The fungus that Tuberose Care starts with proper Tuberose growing conditions which includes sun exposure, planting, feeding, watering, mulching and deadheading. Roots are mainly adventitious and shallows. The fungus ultimately attacks the roots and infection gradually spreads to bulb … ( For any issue or feedback, please write to ndl-support@iitkgp.ac.in. Some sources also treat modified lateral roots (root tubers) under the definition; … Out of 10 tuberose varieties, one variety υiz., Varigated was highly resistant to stem rot, while seven varieties were resistant. ISSN : 0973-1431. Stem rot is a disease caused by a fungus infection in the stem. Stem tuber and root tuber are two types of tubers swollen by storing water and nutrients. Stem tubers form thickened rhizomes (underground stems) or stolons (horizontal connections between organisms). The disease symptom is preceded by the appearance of prominent, coarse, mycelial masses on the leaf surface or near the soil level. Three years pooled data indicated that bulb dip and drenching with captan 0.3% reduced disease incidence. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. On this aspect, no detailed work was carried out in past. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is a half hardy, herbaceous perennial with fibrous roots, 60 to 120 cm high, having a bulb like … Tuberose is a very popular commercially grown loose/cut flower. G.Diseases and pests:- Common diseases are - a) Stem rot b) Botrytis spots and blight c) Leaf spot d) Flower bud rot Sl. Site designed and maintained by. It is developed, operated and maintained from Indian Institute of Technology Kharagpur. Enough watering of Tuberose protects it and enhances its lifespan. All India Co-ordinated Floriculture Improvement Project, NARP (Pz), Ganeshkhind, Pune-411007. More specifically, these diseases are caused by the bacteria Dickeyaspp. G. Diseases and pests:- Common diseases are - a) Stem rot b) Botrytis spots and blight c) Leaf spot d) Flower bud rot Sl. and salable bulbs (7.89 lakh/ha.) Common plant species with stem tubers include the potato and yam. Stem Rot Stem rot caused by Sclerotium rolfsii Sacc. No. The main difference between stem tuber and root tuber is that the stem tuber is a swollen stem whereas the root tuber is a swollen root. ( THE tuberose, a native to Mexico, belongs to the family Amaryllis and is commonly known as lily. Resist the temptation of buying old broken bags of … STUDIES ON STEM ROT OF TUBEROSE (Polianthes tuberosa L.) CAUSED BY Sclerotium rolfsii Sacc. Magnesium Interveinal chlorosis of older leaves. Thus, it is a severe threat to the tuberose cultivators. Symptoms of stem rot includes staining of infected area, reduced crop yield and crop failure. 6. The infection is caused by the fungi Sclerotium rolfsii. Tuberose is half-hardy, herbaceous perennial, bulbous plant. 33) On this aspect, no detailed work was carried out in past. More or less round sclerotic, brown spots are formed on and around the infected leaf. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Stem rot. The treatment was at par with bulb dip and soil application of T. viride. The lesion later expands and affects the inner culm. Tuber soft rot, blackleg and aerial stem rot are important potato diseases caused by closely related species of bacteria. Tuberose is a half-hardy, bulbous perennial perpetuating itself through the bulblets. Tuberose: Abstract: Since last few years the tuberose crop is found to be badly infected with stem rot. It belongs to the Agavaceae family, to the genus Polianthes. Under severe conditions the losses go up to 50 60 per cent. Print 13. Online Roots are mainly adventitious and shallow. Iron Interveinal chlorosis of new leaves. The crop suffers from many fungal diseases, stem rot caused by Sclerotium rolfsii is destructive soil borne disease which takes heavy toll on the crop. 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