Early leaf blight in tomato

The genetic variance of any morphometric or quantitative trait is indicated additive variance (heritable) and non-additive variance and comprise dominance and epistasis (non-allelic interaction) altered by environmental conditions (Iqbal et al., 2014; Kumar et al., 2017; Spaldon and Kumar, 2017).

15p caygaocaolon11 21-04-2021 10 1   Download

Early blight is the most devastating disease of tomato it is caused by pathogens i.e. Alternaria solani. In tropical and subtropical countries it creates hazardous effect. It is also a common problem in United Kingdom, Australia, India, Nepal and United States. It is one of the most common foliar diseases of tomatoes. The disease can occur over a wide range of climatic conditions, but is most prominent in areas with heavy dew, rainfall and high relative humidity. Every year sever disease appears in north India.

6p chauchaungayxua10 19-03-2021 18 3   Download

The tomato crop attacked by early blight, late blight, leaf spots, anthracnose, Dampimg off, buckeye rot, wilts and root rots. Among these Damping off diseases in tomato caused by Rhizoctonia solani is very common to see in nurseries, an increased incidence of blight caused by Rhizoctonia solani was noticed in recent past in major tomato growing areas of Ranga Reddy district of Andhra Pradesh.

7p nguathienthan8 20-10-2020 11 2   Download

Studies were undertaken to evaluate the plant extracts, fungicides and bio-agents against early blight disease of tomato caused by Alternaria solani under in vitro and vivo conditions. Among the four evaluated plant extracts against A. solani, neem leaf extract at 15% (w/v) was found to be most effective in inhibiting the mycelial growth of the pathogen with inhibition of 52.36 per cent, followed by combination of garlic clove and green chilli extract with the inhibition of 50.42 per cent.

7p angicungduoc6 22-07-2020 17 1   Download

Early blight is potentially destructive disease in tomato occurring on the oldest leaves as small, brownish which are due to foliar blight disease and it was caused by a foliar fungal pathogen Alternaria solani. The disease causes considerable yield as well as post-harvest losses. A. solani produced blackish, fluffy mycelium with septate, beaked conidia on PDA Eight plant extracts and four biocontrol agents were evaluated following poison food technique and dual culture.

6p quenchua6 15-06-2020 8 2   Download

The front line demonstrations (FLD’s) on Arka Rakshak F1 Hybrid of tomato were conducted by Krishi Vigan Kendra of Ramanagara District, Karnataka. Akra Rakshak, a triple disease resistant (bacterial wilt, early blight and leaf curl virus) hybrid was released by Indian Institute of Horticultural Research (IIHR), Bengaluru. Improved crop management practices were demonstrated in farmers field for three consecutive years from 2014-15 to 2016-17. As an outcome of FLD, it was noticed that the average per cent Bacterial wilt affected plants was low in demo plots (1.

8p chauchaungayxua5 08-05-2020 14 1   Download

Tomato (Solanum lycopersicum L.) is the third most important crop in India that suffers from various biotic and abiotic stresses. Among the biotic stresses early blight caused by Alternaria solani [(Ell. and Mart.) Jones and Grout] is one of the most destructive diseases of tomato which leads losses up to 78 per cent. In the present study efficacy of cow by product and fungicides were evaluated against the pathogen in vitro and in vivo conditions.

10p caygaocaolon4 04-04-2020 16 0   Download

Tomato (Solanum lycopersicum L.) is the third most important crop in India that suffers from various biotic and abiotic stresses. Among the biotic stresses early blight caused by Alternaria solani [(Ell. and Mart.) Jones and Grout] is one of the most destructive diseases of tomato which leads losses up to 78 per cent.

8p caygaocaolon4 04-04-2020 10 0   Download

The tomato leaves infected with early blight recorded the highest leaf surface fungal species than non-infected leaves. In total twenty six fungal species (thirteen genera) were isolated from both diseased infected and noninfected leaf surface of tomato from seven districts of Meghalaya, following leaf impression, leaf washing and dilution plating and leaf washing and serial dilution plating methods. Among all the three methods used leaf impression method recovered the highest fungal population followed by serial dilution plating and leaf washing and dilution plating method.

9p trinhthamhodang3 12-02-2020 9 1   Download

Alternaria leaf blight of tomato caused by Alternaria solani is a soil inhabiting and airborne pathogen responsible for considerable loss in tomato production. In the absence of resistant cultivars, the use of fungicides and biocontrol agents to control the disease is one exercise training. When there is an epidemic outbreak for some reason, perhaps the use of fungicides are one of the best options available. These fungicides must be used judiciously according to the need, type of body involved and availability of new fungicides.

11p chauchaungayxua3 07-02-2020 13 2   Download

An experiment was conducted for evaluation of tomato genotypes both in uninoculated field conditions and by artificial inoculated controlled conditions against early leaf blight at Research farm, SKUAST-Kashmir. A total of 50 tomato genotypes were screened under uninoculated field conditions. Among these germplasms, 07 test lines viz., 2014/TODHYB-7, 2015/TODHYB-2, 2016/TODHYB-4, 2016/TODHYB-6, 2016/TODHYB-7, 2016/TODVAR-10 and 2016/TODVAR-12 exhibited complete resistant against early blight and 14 lines viz.

8p nguaconbaynhay3 07-02-2020 9 0   Download