Impact of Biofertilizer on Crop Yield of Isabgol (Plantago ovata) and Senna (Cassia alexandrina)
Isabgol (Plantago ovata Forssk.) is an important cash crop in western part of Rajasthan during Rabi season, making India top ranked in its production. It is widely used in Ayurveda due to its laxative property. Senna (Cassia alexandrina Mill.) is perennial undershrubs whose leaves and seed both have medicinal importance. Due to the low level of soil health, inadequate agricultural input, the uncertainty of rain, and no other source of irrigation in Rajasthan, the introduction of biofertilizers to improve the productivity of both the medicinal crops was studied. The biofertilizers used were Serendipita indica a culturable arbuscular mycorrhiza, which is able to increase biomass and yield of crop plants and to induce local and systemic resistance to fungal diseases and tolerance to abiotic stress, and Azotobacter sp. a free-living nitrogen fixer, individually as well as in combination. The results showed that S. indica performed better than all the other treatments. The mean yield in Isabgol seed and husk, respectively, increased to 57% and 33% in S. indica-treated seeds followed by 36% and 14% in consortia of the fungus and bacterium and 23% and 4% in Azotobacter sp.-treated seeds as compared to control. Similarly, mean yield of Senna seeds was maximum in S. indica-treated seeds (39.69 g), followed by consortia (20.04 g) and Azotobacter (19.16 g) as compared to control (16.30 g).
KeywordsCassia alexandrina Plantago ovata Serendipita indica
The authors would like to thank Department of Science and Technology for providing funds and the Director of Arid Forest Research Institute and Founder President of Amity University Uttar Pradesh, Noida, for providing necessary research facility, encouragement, and constant inspiration needed during the course of the investigation.
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