Impact of Date of Sowing on incidence of chickpea Stunt Disease

Author: Saurav Kumar and Ramesh Nath Gupta

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Abstract

Chickpea is an important pulse crop in India. Crop suffers from various biotic and abiotic stresses during growing period. Among biotic stresses chickpea stunt disease caused by Bean (Pea) Leaf Roll Virus is an economical and emerging disease of chickpea in the country. Diseased plants are easily spotted in the field by their symptoms as yellow, orange or brown discoloration, small size and thickening of leaves, shortened internodes and stunted growth of plant. In Kabuli type chickpea, the colour of leaves becomes yellow while in Desi type chickpea leaves shows brown or red discoloration. Kabuli type chickpea is more susceptible than Desi type. Extent of incidence of stunt was observed 5-20 per cent in farmer’s fields. It causes 100 per cent yield loss when incidence of chickpea stunt disease in early stage of crop growth. Later stage infection during podding stage also causes yield loss 80-90 per cent. It is a limiting factor for chickpea cultivation. Present investigation was carried out to know extent of incidence of stunt disease and identify suitable date of sowing for least incidence. Chickpea was sown early on 1st November, mid sown on 15th November and late sown on 30th November. The incidence of stunt disease and its vector aphid was observed in early sown crop and found maximum disease incidence during second week of January and minimum during last week of December. In mid sown crop the incidence of stunt disease was maximum during first week of January and minimum during third week of February. During late sown crop, stunt disease was found maximum in second week of January and it was observed minimum in third week of February. The incidence of chickpea stunt disease and its vector was recorded highest in early sown crop followed by mid sown crop and least in late sown crop.

Keywords

chickpea, stunt disease, date of sowing, disease incidence

Conclusion

Stunt disease of chickpea is an important disease of chickpea. The severity of disease was depending upon its vector aphid. Maximum aphid population was observed during early sown crop followed by mid and late sown conditions. The incidence of chickpea stunt disease was recorded highest in early sown crop followed by mid sown crop and least in late sown crop. Late sowing crop on 30th November showed minimum incidence of chickpea stunt disease.

References

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How to cite this article

Saurav Kumar and Ramesh Nath Gupta (2019). Impact of Date of Sowing on incidence of chickpea Stunt Disease. Biological Forum – An International Journal, 11(1): 295-298.