Mustard crop is the third important source of vegetable oil randomly below soybean L. and palm, all over the world. Brassica crop is extremely susceptible to some biotic and abiotic stresses and they significantly influence the quality and quantity of the crop. In the past generally breeding techniques are used to develop resistance in mustard to avoid diseases though various pathogens are soon able to overcome that resistance by modifying their metabolic cycles. To bear the challenge there is an urgent need to develop abiotic as well as biotic stress tolerant plants using advanced techniques by understanding metabolic and biochemical pathways of plants and pathogens. Several techniques such selection of stress tolerance microbes, metabolite, enzymes, and genes are very important to avoid stresses. Whereas several techniques such as deployment of molecular markers for breeding, identification of Quantitative trait loci (QTL), in vitro tissue culture etc. can be more useful to improve biotic and abiotic stress tolerance in mustard. To develop healthy and high yield varieties, the mix of these techniques is needs to be implemented.

Field studies were conducted to evaluate the impact of transplanting dates and weather parameters on the incidence of rice leaf folder Cnaphalocrocis medinalis (Guenee). During 2018 kharif season, the first incidence was noticed during 27th standard meteorological week (SMW) irrespective of the transplanting dates, with peak being in the 28th SMW (1.67% damaged leaves/hill). Least damage was observed in 4th date of transplanting (20th July), while maximum incidence was with 20th June transplanting. The correlation of incidence with temperature showed negative correlation, while rainfall and relative humidity showe positive relationship.

India is one of the major producers of oilseed crops in the global oilseed market. Rapeseed-mustard is one of the seven edible oilseed crops grown in India, and it holds a unique place in the country’s agricultural economy and social structure. Of all the biotic and abiotic stresses that threaten mustard crop, white rust caused by an obligate biotrophic fungus Albugo candida is one of the most devastating. The experiments were conducted at Guru Kashi University, Talwandi sabo (Punjab) under the field and laboratory conditions to study the management of white rust during Rabi season 2018-2019. In the present study, Correlation analysis of disease intensity with weather factors indicated that maximum temperature (17.9-22.1°C) and minimum temperature (2.2-9.4°C), maximum relative humidity (85.4–92.6%), and total rainfall (mm) has significant positive correlation with disease intensity, while minimum relative humidity (45.0-63.7%) has a significant negative correlation. Temperature (min.) and Rainfall were found to have maximum positive correlation and significantly with disease intensity than other weather parameters. Hence, it means temperature (Min.) and rainfall increases the disease intensity of white rust of mustard.