Effect of spent mushroom substrate on growth parameters, yield and soft rot incidence of ginger
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Authors
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J S Remya
Department of Plant Pathology. College of Horticulture, Vellanikkara, Kerala Agricultural University, Thrissur-680656
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T Sheela Paul
Department of Plant Pathology. College of Horticulture, Vellanikkara, Kerala Agricultural University, Thrissur-680656
Abstract
A study was conducted at Vellanikkara, Thrissur (Kerala) during 2011-12 to assess the influence of spent mushroom substrate (SMS) from Pleurotus florida and P. sajor-caju on growth parameters, yield and soft rot incidence by Pythium aphanidermatum in ginger (Zingiber officinale). Evaluation of SMS against soft rot of ginger was conducted under pot culture condition. SMS used for the study were paddy straw, saw dust and neopeat SMS of P. florida and P. sajor-caju, and were used as mulch. The influence of SMS was compared with recommended inorganic fertilization along with control. The treatment paddy straw SMS of P. sajor-caju as mulch was significantly superior to all other treatments and the incidence of soft rot was not observed in the treatment, whereas control plants recorded 100 per cent disease incidence. Number of tillers, number of leaves per tiller, height of tillers and rhizome yield were also recorded highest in the treatment paddy straw SMS of P. sajorcaju. The other SMS as mulch treatments also showed better result compared to control. It was concluded that paddy straw SMS of P. sajor-caju as mulch can be used as an effective management practice against P. aphanidermatum in ginger.
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