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SUMMARY :Rice, Oryza sativa L. is the most economically important food crop grown by millions of people in India. It plays a major nutritional role in the diet of people of many developing nations (Norman and Kebe, 2006; FAO, 2013).The productivity of rice is threatened by a wide range of pre and post harvest pests (Ashamo and Akinnawonu, 2012). Stored product insect pests such as Sitophilus oryzae (Linnaeus), Sitophilus zeamais (Motschulsky), Rhyzoperthadominica (Fabricius) and Sitotroga cerealella (Olivier) are usually seen on rice in most of the stores. An experiment was conducted at Seed Research and Technology Centre, Rajendranagar, Professor Jayashankar Telangana State Agricultural University, Hyderabad during 2015-16 to study the efficacy of botanicals on storability of paddy seeds through seed treatments. The storage studies revealed that among botanical seed treatments, significantly highest seed germination was recorded inseeds treated with Acorus calamus @ 10ml per kg seed (96.33%) followed by Karanj oil @ 5ml per kg seed (90.33%) and the lowest in untreated seeds (80.67%). Significantly highest seedling vigour was also observed in Acorus calamus @ 10ml per kg seed (1947) followed by Karanj oil @ 5ml per kg seed (1853) while significantly lowest seedling vigour index was recorded in untreated control (1458). Though lowest seed infestation was recorded in Karanj oil @ 5 ml/kg seed (5.3 %) but it was on par with Acorus calamus (8.0 %) at the end of twelve months of storage. Among the various treatments, Acorus calamus and Karanj oil were found to be superior in maintaining seed quality through out the storage period over control. In all the treatments, seed quality parameters declined progressively with increase in storage period. The average germination per cent age and vigour index of the seed at the beginning of storage period was 99.10 per cent and 3556, respectively, which declined to 90.71 per cent and 1766.71, respectively at the end of 12 th month of storage.How to cite this article : Padmasri, A., Srinivas, C., Kumar, B. Anil and Parimala, K. (2017). Evaluation of botanicals and insecticides against Sitotroga cerealella (Olivier) on stored paddy seeds.

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Abstract-Pseudomonas fluorescens is one of the major fungal biocontrol agents found in the soil and the rhizosphere of various crop systems. Ten isolates of P.fluorescens were isolated from rhizosphere soil samples collected from various tomato-growing fields and evaluated for their efficacy in increasing seed quality variables of tomato and in inhibiting the mycelial growth of Fusarium oxysporum. Pseudomonas isolate 2 produced effective results and was selected and mass multiplied. Talc and sodium alginate formulations of mass multiplied using different agents were prepared and evaluated for their effects against fusarium wilt under greenhouse conditions. Fresh cultures of Pf2 isolate was found to increase seedling emergence and reduce fusarium wilt disease incidence when compared to the control and the formulations.

Crop yield prediction is an application that helps farmers to improve crop yield. As selection of every crop is very important in agricultural planning, it mainly depends on market price, climate and production rate. The proposed project predicts the crop yield quantity, based on the following factors Temperature, Humidity, Moisture level of soil and area of field. The rate of yield predicted by our proposed project is displayed as an output to the user that aids the farmer to harvest the crop.

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Cottondora Sannalu (MTU 1010) and Jagtial Sannalu (JGL 1798) are widely cultivated rice varieties in Telangana and Andhra Pradesh and very well-accepted among the farmers because of their high yield, slender grain and preferred cooking quality. Despite being popular, these varieties are susceptible to different pests and diseases including bacterial blight (BB), caused by Xanthomonas oryzae pv. oryae (Xoo). Two BB resistance genes viz., xa13 and Xa21 were introgressed in these two varieties using marker assisted backcross breeding. Homozygous lines possessing BB resistance genes xa13 or Xa21 and their combination were evaluated for BB resistance with multiple Xoo isolates under controlled condition in glass house and also at different hot spot locations in the states of Telangana and Andhra Pradesh, India. Both the recurrent parents (MTU 1010 and JGL 1798), TN1 (susceptible check variety) and Improved Samba Mahsuri (resistant check variety) were also subjected for resistance evaluation. All the gene-pyramided lines were highly resistant to BB both under glasshouse and field condition. Individually, BB resistance gene xa13 showed higher level of resistance than Xa21. The resistance level was higher in the lines possessing both the BB resistance genes in comparison to the lines possessing single BB resistance genes. The results showed that combination of BB resistance genes xa13 and Xa21 can provide broad level of resistance against BB in Telangana and Andhra Pradesh.

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