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Upadhyaya H.D.,Indian International Crops Research Institute for the Semi Arid Tropics | Ravishankar C.R.,Zonal Agricultural Research Station | Narasimhudu Y.,Regional Agricultural Research Station | Sarma N.D.R.K.,Regional Agricultural Research Station | And 9 more authors.
Field Crops Research | Year: 2011

Foxtail millet is an important staple crop in some parts of China, India and Japan, and a potential bioenergy source. The grains are rich source of protein, fiber, minerals and vitamins. We had earlier reported the development of a core collection (155 accessions) of foxtail millet. This study was initiated to identify trait-specific germplasm for agronomic and nutritional traits, and to develop a mini core through multilocational evaluation of the foxtail millet core collection. One hundred and fifty-five accessions together with five controls (four common and one location-specific control) were evaluated for 21 descriptors at five agro-ecologically diverse locations in India during the 2008 rainy season. The experiment was conducted in an alpha design with three replications at Patancheru, and in an augmented design with one of the five controls repeated after every nine-test entries at other locations. A number of diverse germplasm accessions with agronomically (earliness and high grain yield) and nutritionally (high seed protein, calcium, iron and zinc) superior traits were identified for use in foxtail millet breeding. The hierarchical cluster analysis of data using phenotypic distances resulted in 25 clusters, from each cluster, ~10% or a minimum of one accession was selected to form a mini core, which comprised of 35 accessions. The comparison of mean, variance, frequency distribution, diversity (H') and phenotypic correlations revealed that the mini core indeed captured adequate variability from the core collection. This mini core collection is an ideal pool of diverse germplasm for studying population structure and diversity, and identifying new sources of variation for use in breeding and genomics studies in foxtail millet. © 2011 Elsevier B.V.

Tiwari D.K.,Zonal Agricultural Research Station | Kushwaha H.S.,MGCGVV | Sharma R.S.,JNKVV
Ecology, Environment and Conservation | Year: 2016

A field experiment was conducted in skeletal soil during Kharif season for two consecutive years of 2007-08 and 2008-09 at Dindori district of Madhya Pradesh to evaluate 8 intercropping system in kodon millet and pigeonpea. Sole kodon millet and pigeonpea gave highest yield. Association of short duration kodon millet cv DPS-19 and medium duration spreading type pigeonpea cv No. 148 in 2:1 rows proved to be best intercropping system with regard to total productivity of 4151 kg/ha in terms of kodon millet equivalent yields and land equivalent ratios of 1.60. Economics of the treatment significantly fetched maximum gross monetary returns (' 33316/ha), net monetary returns (' 18124/ha) and benefit-cost ratio (2.19) among all intercropping systems as well as sole cropping of either crops. Copyright © EM International.

Murumkar D.R.,Central Sugarcane Research Station | Nalawade S.V.,Central Sugarcane Research Station | Indi D.V.,Zonal Agricultural Research Station | Pawar S.M.,Central Sugarcane Research Station
Sugar Tech | Year: 2016

A field experiment was conducted for three consecutive years to study the effect of set treatment of Gluconacetobacter diazotrophicus and PSB on seed yield, quality and saving of chemical N and P fertilizers for sugarcane seed plot. The set inoculation of Gluconacetobacter diazotrophicus + PSB coupled with 75 % recommended N and 75 % recommended P2O5 significantly improved the growth, two eye bud-set yield and quality. Among fertilizer levels, 75 % recommended N and 75 % recommended P recorded the highest yield of two eye bud-sets (883.63 and 885.44 thousands/ha, respectively). Between the inoculation treatments, fresh planting material inoculated with Acetobacter recorded higher two eye bud-sets (858.96 thousands/ha) than the uninoculated planting material from previous-year Acetobacter inoculated plot (828.47 thousands/ha); however, they were statistically indistinguishable. Moreover, the higher population and activity of G. diazotrophicus were observed at 75 % recommended N and 75 % recommended P. Among various interactions, the interaction of 75 % N and inoculation treatment showed significantly highest Acetobacter count in cuttings (7.38 × 104). The available N and P status of soil at harvest was significantly influenced by different fertilizer levels (N and P levels), inoculation treatments and their interactions as well. © 2016 Society for Sugar Research & Promotion

Sidde Gowda D.K.,Zonal Agricultural Research Station
Pestology | Year: 2010

Indoxacarb 14.5% SC (Kingdoxa), was field tested for its bio-efficacy on rice yellow stem borer (YSB), Scirpophaga incertulas (Walker) and the leaf folder, Cnaphalocrosis medinalis (Guenee). The study was conducted for two years (Kharif 2006 and 2007) with five dosages viz., 22.5, 30,37.5,40 and 60 g. a.i./ha. in comparison with chlorpyriphos 20 EC (500 # a././ha). Mean of two years data revealed indoxacarb @ 37.5 g. a.i./ha recorded lower per cent of dead hearts (10.09 to 6.39), white ears (5.56 to 4.50) by stem borer and less number of freshly damaged leaves(25.01 to 22.16) and higher grain yield(40.8q/ha) compared to chlorpyriphos 20EC @ 500 g. a.i./ha (12.68 to 11.39% dead hearts, 8.21 to 6.78% white ears, 26.52 to 28.32 freshly damaged leaves and grain yield of 38.17 q/ha).

Raju B.R.,University of Agricultural Sciences, Bangalore | Narayanaswamy B.R.,University of Agricultural Sciences, Bangalore | Mohankumar M.V.,University of Agricultural Sciences, Bangalore | Sumanth K.K.,University of Agricultural Sciences, Bangalore | And 4 more authors.
Functional Plant Biology | Year: 2014

Reduced spikelet fertility appears to be one of the major factors responsible for the decreased rice grain yield when cultivated under semi irrigated aerobic condition. We demonstrate that genotypes with better root systems coupled with higher cellular level tolerance (CLT) can significantly improve spikelet fertility under semi-irrigated aerobic condition in the field. A set of 20 contrasting rice accessions differing in root traits and CLT with significant molecular diversity were subjected to specific soil moisture regimes during a period between five days before and 10 days after anthesis. Lowest spikelet fertility was observed among the plants grown under water limited (WL) conditions followed by the plants grown aerobically in field conditions (AF). Deep rooted genotypes generally maintained higher spikelet fertility under both WL and AF conditions. Furthermore, genotypes that had high roots biomass as well as high CLT recorded the lowest reduction in spikelet fertility under WL and AF compared with the low root and low CLT genotype. This study emphasised the relevance of combining water acquisition and CLT for improving field level tolerance of rice to water limitation. Such genotypes recorded significantly higher grain yield under stress as well as well watered conditions. The study led to the identification of promising trait donor genotypes which can be exploited in breeding to develop superior trait pyramided cultivars suitable for semi irrigated aerobic cultivation. © CSIRO 2014.

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