Khargon, India
Khargon, India

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Tyagi S.K.,Krishi Vigyan Kendra | Jain R.C.,ZARS
International Journal of Agricultural and Statistical Sciences | Year: 2015

Plastic mulching techniques are widely applied by commercial producers of watermelon. In order to define the influence of mulching on growth and yield of watermelon, an experiment was laid out as on farm trials entitled "Effect of plastic mulch on growth, yield and economics of watermelon [Citrullus lanatus (Thumb.) Matsum et Nakai] under tropical climate of Madhya Pradesh" at farmer's field in five locations at Dogaon village, Khargone district of Madhya Pradesh during two consecutive spring growing season of 2011 and 2012. Watermelon was grown on silver-on-black plastic mulch and without mulch field. The main vine length, number of branches, number of fruits per plant, average fruit weight and yield per hectare were recorded. It was noticed that plastic mulch had significant response on vegetative growth, yield and net profit. Plants in plastic mulch treatment had higher yields ascribed due to higher length of vine, number of branches, number of fruits per plant and average fruit weight. The study revealed that silver-on-black plastic film could be conducive and beneficial in enhancing the yield which lead to 75.29% and 82.10% increase over farmers practice during 2011 and 2012, respectively with a mean value of 78.70% increase over farmers practice and net profit of watermelon found suitable for an early spring sowing under the Nimar Zone conditions of Madhya Pradesh.


Venkataramana P.B.,Bangalore | Venkataramana P.B.,University of Agricultural Sciences, Bangalore | Gowda R.,Bangalore | Somta P.,Kasetsart University | And 4 more authors.
Euphytica | Year: 2015

The damage caused to stored seed by bruchids (Callosobruchus maculatus) is considered to be a major production constraint in rice bean (Vigna umbellata). Breeding for genetically determined resistance is the most environmentally benign and cost-effective means to mitigate the losses to bruchid infestation. Here, a screen of rice bean germplasm identified two sources of resistance, and determined the genetic basis of the resistance using a quantitative trait locus (QTL) mapping approach. The two resistant accessions (LRB238 and JP100304) were each crossed to a common susceptible cultivar (LRB26) to generate F2 mapping populations, one of which (LRB238 × LRB26) was genotyped with a range of Vigna sp. microsatellite assays and by sequence related amplified polymorphism (SRAP) fingerprinting. The resulting linkage map comprised ten linkage groups and covered a genetic distance of 872.1 cM with a mean inter-marker distance of 32.05 cM. The subsequent QTL analysis detected the presence of 11 QTL, distributed over all ten linkage groups, most of which were associated with the % damage caused to the seed. Two major QTL, Cmpd1.5 (flanked by the SRAP markers E2M9-270 and E12M7-311) and Cmpd1.6 (flanked by the SRAP marker E7M10-141 and the microsatellite locus CEDG259) mapped within 11.9 cM and 13.0 cM of the flanking markers, respectively, accounted for, 67.3 and 77.4 % of the variance respectively, for % damaged seeds. A bulked segregation analysis carried out in the JP100304 × LRB26 population revealed that the resistance donor harboured some resistance factors not represented in LRB238. © 2015 Springer Science+Business Media Dordrecht


Meena P.D.,Directorate of Rapeseed Mustard Research ICAR | Gour R.B.,University of Rajasthan | Gupta J.C.,ZARS | Singh H.K.,NDUAT | And 7 more authors.
Crop Protection | Year: 2013

India is a leading producer of oilseed Brassicas, contributing approximately 23 percent of the country's total oilseed production. In India, the Indian mustard [. Brassica juncea (L.) Czern. & Coss.] crop is ravaged by various diseases, including Alternaria blight, white rust, downy mildew, Sclerotinia rot and powdery mildew, which can contribute to fluctuations in crop yields. A field experiment examining an integrated disease management system for Indian mustard (B. juncea) was conducted under the All India Coordinated Research Project on Rapeseed-Mustard (Indian Council of Agricultural Research or ICAR) during three crop seasons (2006-09) at 11 locations to assess treatments suitable for the management of crop disease. The data from the different locations and years regarding disease severity and incidence were pooled and analyzed. Seed treatments with freshly prepared Allium sativum bulb aqueous extract (1 percent w/v) resulted in significantly higher initial plant stands, across locations and years. Seed treatment with A.sativum bulb extract, followed by its use as a foliar spray, resulted in significantly reduced Alternaria leaf and pod blight severity, reduced white rust severity, fewer stag heads per plot, reduced downy mildew and Sclerotinia rot incidence, and reduced powdery mildew severity, across locations and years. The combination also provided significantly higher seed yields compared with the control across locations and years and was at par with treatment by chemical fungicides. The combination used in the present study was as effective as the combination of seed treatment with Trichoderma harzianum and foliar spraying with Pseudomonas fluorescens and T.harzianum. Economic returns were higher when using biorational treatments (A.sativum bulb extract, T.harzianum, P.fluorescens) compared with chemical fungicides. The combination of seed treatments with T.harzianum followed by its use as a foliar spray (17.22), and the similar combination of seed treatments and foliar spraying with the A.sativum bulb extract (17.18), resulted in a higher benefit to cost ratio. This eco-friendly technology can help oilseed Brassica growers in India safeguard the crops from major diseases and increase the stability and productivity of the Indian mustard crop. © 2013 Elsevier Ltd.


Venkataramana P.B.,UAS | Venkataramana P.B.,University of Agricultural Sciences, Bangalore | Gowda R.,NSP | Ramesh S.,UAS | And 4 more authors.
Euphytica | Year: 2016

The damage caused to stored seed by bruchids (Callosobruchus maculatus) is considered to be a major production constraint in rice bean (Vigna umbellata). Breeding for genetically determined resistance is the most environmentally benign and cost-effective means to mitigate the losses to bruchid infestation. Here, a screen of rice bean germplasm identified two sources of resistance, and determined the genetic basis of the resistance using a quantitative trait locus (QTL) mapping approach. The two resistant accessions (LRB238 and JP100304) were each crossed to a common susceptible cultivar (LRB26) to generate F2 mapping populations, one of which (LRB238 × LRB26) was genotyped with a range of Vigna sp. microsatellite assays and by sequence related amplified polymorphism (SRAP) fingerprinting. The resulting linkage map comprised ten linkage groups and covered a genetic distance of 872.1 cM with a mean inter-marker distance of 32.05 cM. The subsequent QTL analysis detected the presence of 11 QTL, distributed over all ten linkage groups, most of which were associated with the % damage caused to the seed. Two major QTL, Cmpd1.5 (flanked by the SRAP markers E2M9-270 and E12M7-311) and Cmpd1.6 (flanked by the SRAP marker E7M10-141 and the microsatellite locus CEDG259) mapped within 11.9 cM and 13.0 cM of the flanking markers, respectively, accounted for, 67.3 and 77.4 % of the variance respectively, for % damaged seeds. A bulked segregation analysis carried out in the JP100304 × LRB26 population revealed that the resistance donor harboured some resistance factors not represented in LRB238. © 2015, Springer Science+Business Media Dordrecht.


Madhu G.K.,UAS | Yogananda S.B.,ZARS | Thimmegowda M.N.,Agronomist ORP on Dryland Agriculture | Mallesha,UAS | Sanju H.R.,UAS
Ecology, Environment and Conservation | Year: 2014

A field experiment was conducted during Kharif 2012 at Zonal Agricultural Research Station, VC Farm, Mandya in maize and field bean intercropping system with different row proportion and nutrient management practices. The results revealed that, application on nutrients based on SSNM produced significantly higher growth, yield components and kernel yield (82.96 q ha-1) of maize as compared to LCC (75.23 q ha-1) and RDF (71.23 q ha -1). Among the row ratios, significantly superior growth, yield components and kernel yield (78.09 q ha-1) of maize were recorded in sole maize followed by maize + field bean in 4:1 row proportion (77.68 q ha -1). Among the interaction, sole maize with SSNM recorded significantly superior growth, yield components and kernel yield (84.33 q ha-1) and it was on par with maize + field bean in 4:1 row proportion with SSNM (84.13 q ha-1). The net returns (Rs. 133606 ha -1), was superior in maize + field bean in 4:1 row proportion with SSNM while, the B:C ratio (5.26) in 4:1 proportion with LCC. Higher MEY was recorded in maize + field bean in 4:1 row proportion with SSNM (8972.6 kg ha-1). Further, Maize + field bean in 4:1 row proportion with SSNM accounted for maximum LER (1.27), ATER (1.16), and minimum aggressivity (0.024). Copyright © EM International.


Sanju H.R.,UAS | Mudalagiriyappa,ZARS | Madhu G.K.,UAS | Mallesha,UAS
Ecology, Environment and Conservation | Year: 2014

A field experiment was conducted during kharif 2012 to study the effect of fertigation with different sources and levels of fertilizers on nutrient removal, water use efficiency (WUE) and economics in groundnut at Zonal Agricultural Research Station, University Agricultural Sciences, Bengaluru. It was observed that significantly higher nitrogen, phosphorus, and potassium uptake (116.9,24.5 and 48.1 kg ha-1, respectively) at harvest in plant with drip fertigation of 100% recommended dose of fertilizers (RDF) as water soluble fertilizers (WSF) followed by drip fertigation of 75% RDF as WSF. Similarly higher WUE was noticed in drip fertigation of 100% RDF as WSF (69.08 kg/ha -cm) as compared to surface and drip irrigation at 100% RDF through NF (25.36 and 49.76 kg/ha-cm, respectively). However, due to high cost of WSF, drip fertigation of 100% RDF through normal fertilizers (NF) recorded the highest net returns (Rs. 67,970 ha-1) and B:C ratio (2.54). Copyright © EM International.


Shruthi M.K.,ZARS | Vishwanath A.P.,ZARS | Narayanaswamy S.,University of Agricultural Sciences, Bangalore
Ecology, Environment and Conservation | Year: 2014

A field experiment was conducted at Agronomy Field Unit, Zonal Agricultural Research Station, University of Agricultural Sciences, G.K.V.K., Bengaluru during Kharif, 2012 to study the effect of foliar application of water soluble NPK fertilizer on yield and seed characteristics of lima bean (Phaseolus lunatus L.). The experiment was laid out in a Randomized Complete Block Design with three replications and eight treatments using a bush type lima bean variety. The results revealed that application of 25:50:25 kg NPK ha-1 + foliar application of WSF at branching, 50% flowering and pod development stage (T 8) recorded significantly higher seed yield of 1408 kg ha -1 than the control (1007 kg ha-1). Similarly the root length (15.1 cm) and vigor index-I (2040) were significantly higher in T 8 than the other treatments. Copyright © EM International.

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