Additional file 2: Supplementary Table 2. Correlation of phenological, physiological traits with ... more Additional file 2: Supplementary Table 2. Correlation of phenological, physiological traits with yield under water stress in trial 1.
A field experiment was conducted during kharif season of 2000 to study the effect of nitrogen lev... more A field experiment was conducted during kharif season of 2000 to study the effect of nitrogen levels and planting geometry on urdbean(Vigna mungo L. Hepper) cv Pant U-19. Twelve treatment combinations, comprising four nitogen levels(20 kg N/ha as basal, 20 kg N/ha as basal+ 10 kg N/ha as foliar, 30 kg N/ha as basal,+ 10 kg N/ha as foliar, and 30 kg N/ha as basal) and three spacing(20 x 10 cm, 25 x 10 cm and 30 x 10 cm) were tested in factorial randomized block design with three replications. The recommended doses of 40 kg P sub ...
A study was conducted to assess the effect of Bean common mosaic virus (BCMV) disease incidence o... more A study was conducted to assess the effect of Bean common mosaic virus (BCMV) disease incidence on yield potential and nodulation of cowpea genotypes. All the genotypes were artificially inoculated with virus inoculum collected from C-152 cowpea plants. The results showed BCMV could interfere with yield potential and rhizobium-cowpea symbiotic relationship. Based on extent of disease incidence, number of nodules plant−1 varied among the genotypes. The resistance control, V-5 produced more of number nodules plant−1 (22.8). The study indicated that genotype, IC 202782 was superior in terms of resistance, 100 seed weight (12.7 g), green fodder yield (17.8 t ha−1) and fodder quality under virus pressure. The genotype, IC 8996 was also found resistant to BCMV infection and good grain yielder (15.5 q ha−1) with maximum height (68.3 cm).The statistical analysis showed disease incidence and yield attributes were negatively associated whereas, number of nodules and fodder quality parameters had positive association. The genotypes obtained with superior characteristics in terms of resistance, grain and quality fodder yields, are expected to be useful to growers and to breeding programmes seeking to control yield losses caused by viruses, particularly BCMV.
Oat is grown as winter forage in India. It is a self-pollinated crop with less variability. Howev... more Oat is grown as winter forage in India. It is a self-pollinated crop with less variability. However, the variation for different morphological traits in oat germplasm may be available at genotypic level. The present study was conducted to find out the genetic diversity among 24 oat landraces using 9 morphological traits and 24 SSR primers. Morphological data observed across the 24 landraces showed wide variation and grouped various landraces into two clusters. GFY and DMY were positively and significantly correlated with most of the traits studied. The molecular analysis using 24 SSR primers resulted amplification of 62 polymorphic alleles with an average of 2.58 alleles per primer. Size of amplified alleles ranged from 70 to 480 bp. Mean polymorphic information content was 0.42 showing moderate level of SSR polymorphism. Cluster analysis based on SSR data differentiated 24 oat landraces into three major clusters. Bayesian model-based STRUCTURE analysis assigned landraces into two c...
Maize plays a significant role in human as food and livestock nutrition as feed. Quality protein ... more Maize plays a significant role in human as food and livestock nutrition as feed. Quality protein maize (QPM) contains, in general, 55% more tryptophan and 30% more lysine in protein than that of normal maize. The QPM hybrids are rich in nutrition with higher biological value (80%) and have more balanced amino acid composition than normal maize, and if, fed to animal that improves health and milk production. In the present experiment, attempt were made to develop QPM hybrids using eight QPM inbreds lines, 56 single cross hybrids including reciprocals were developed using Griffing (1956) full diallel to estimate the genetic components and heterosis for quality parameters of grain used for feed purpose. General combining ability and specific combining ability effect were significant for all the quality traits. The parents VQL-1 and BQPM-4 were found to be good general combiner for quality traits. The variance due to dominance effects were found to be much higher compared to the varianc...
About 80% kharif area of maize cultivation in India is under rainfed condition where uncertainty ... more About 80% kharif area of maize cultivation in India is under rainfed condition where uncertainty of rainfall is a ubiquitous phenomenon which limiting its productivity. Primary and secondary stress responsive traits are mainly on quantitative loci, which make the direct selection of traits difficult. The present experiment aimed to identify the maize hybrids suitable for dual purpose under low moisture stress condition, identification of secondary traits associated with fodder and grain yield and calculation of correlation which could be useful for effective selection for fodder and grain yield. Using 37 maize genotypes, evaluated under 3 moisture regimes for green fodder and grain yield. Association analysis was done among the secondary traits and yield. Among the genotypes significant variability was showed for all characters. The hybrids BAUIM-2 x HKI-1532 and BAUIM3 x HKI-1532 found suitable for dual purpose exhibited maximum GFY/P under irrigated, rainfed and stress (50kPa) con...
Fifteen million farmers in India engaged in Maize cultivation. India would require 45 MMT of Maiz... more Fifteen million farmers in India engaged in Maize cultivation. India would require 45 MMT of Maize by 2022. But, only 15% of cultivated area of maize is under irrigation and water shortage has been a challenge for sustainability of maize production. Water deficit stress (WDS) during pre-flowering and grain filling stages massively affects the plant performance due to imprecise traits function. Thus, the effect of WDS on non-drought tolerant (NDT) and drought tolerant (DT) maize lines were investigated. WDS increased the flowering days, days to maturity, anthesis silk interval, decreased the leaf number, abnormal expression of secondary stress responsive traits, loss of normal root architecture which overall lead to a reduction in GY/ha. WDS at flowering and grain filling stage leads to significant yield penalty especially in NDT lines than DT lines. The yield penalty was ranged from 34.28 to 66.15% in NDT and 38.48 to 55.95% in DT lines due to WDS. Using multiple statistics, traits ...
Additional file 2: Supplementary Table 2. Correlation of phenological, physiological traits with ... more Additional file 2: Supplementary Table 2. Correlation of phenological, physiological traits with yield under water stress in trial 1.
A field experiment was conducted during kharif season of 2000 to study the effect of nitrogen lev... more A field experiment was conducted during kharif season of 2000 to study the effect of nitrogen levels and planting geometry on urdbean(Vigna mungo L. Hepper) cv Pant U-19. Twelve treatment combinations, comprising four nitogen levels(20 kg N/ha as basal, 20 kg N/ha as basal+ 10 kg N/ha as foliar, 30 kg N/ha as basal,+ 10 kg N/ha as foliar, and 30 kg N/ha as basal) and three spacing(20 x 10 cm, 25 x 10 cm and 30 x 10 cm) were tested in factorial randomized block design with three replications. The recommended doses of 40 kg P sub ...
A study was conducted to assess the effect of Bean common mosaic virus (BCMV) disease incidence o... more A study was conducted to assess the effect of Bean common mosaic virus (BCMV) disease incidence on yield potential and nodulation of cowpea genotypes. All the genotypes were artificially inoculated with virus inoculum collected from C-152 cowpea plants. The results showed BCMV could interfere with yield potential and rhizobium-cowpea symbiotic relationship. Based on extent of disease incidence, number of nodules plant−1 varied among the genotypes. The resistance control, V-5 produced more of number nodules plant−1 (22.8). The study indicated that genotype, IC 202782 was superior in terms of resistance, 100 seed weight (12.7 g), green fodder yield (17.8 t ha−1) and fodder quality under virus pressure. The genotype, IC 8996 was also found resistant to BCMV infection and good grain yielder (15.5 q ha−1) with maximum height (68.3 cm).The statistical analysis showed disease incidence and yield attributes were negatively associated whereas, number of nodules and fodder quality parameters had positive association. The genotypes obtained with superior characteristics in terms of resistance, grain and quality fodder yields, are expected to be useful to growers and to breeding programmes seeking to control yield losses caused by viruses, particularly BCMV.
Oat is grown as winter forage in India. It is a self-pollinated crop with less variability. Howev... more Oat is grown as winter forage in India. It is a self-pollinated crop with less variability. However, the variation for different morphological traits in oat germplasm may be available at genotypic level. The present study was conducted to find out the genetic diversity among 24 oat landraces using 9 morphological traits and 24 SSR primers. Morphological data observed across the 24 landraces showed wide variation and grouped various landraces into two clusters. GFY and DMY were positively and significantly correlated with most of the traits studied. The molecular analysis using 24 SSR primers resulted amplification of 62 polymorphic alleles with an average of 2.58 alleles per primer. Size of amplified alleles ranged from 70 to 480 bp. Mean polymorphic information content was 0.42 showing moderate level of SSR polymorphism. Cluster analysis based on SSR data differentiated 24 oat landraces into three major clusters. Bayesian model-based STRUCTURE analysis assigned landraces into two c...
Maize plays a significant role in human as food and livestock nutrition as feed. Quality protein ... more Maize plays a significant role in human as food and livestock nutrition as feed. Quality protein maize (QPM) contains, in general, 55% more tryptophan and 30% more lysine in protein than that of normal maize. The QPM hybrids are rich in nutrition with higher biological value (80%) and have more balanced amino acid composition than normal maize, and if, fed to animal that improves health and milk production. In the present experiment, attempt were made to develop QPM hybrids using eight QPM inbreds lines, 56 single cross hybrids including reciprocals were developed using Griffing (1956) full diallel to estimate the genetic components and heterosis for quality parameters of grain used for feed purpose. General combining ability and specific combining ability effect were significant for all the quality traits. The parents VQL-1 and BQPM-4 were found to be good general combiner for quality traits. The variance due to dominance effects were found to be much higher compared to the varianc...
About 80% kharif area of maize cultivation in India is under rainfed condition where uncertainty ... more About 80% kharif area of maize cultivation in India is under rainfed condition where uncertainty of rainfall is a ubiquitous phenomenon which limiting its productivity. Primary and secondary stress responsive traits are mainly on quantitative loci, which make the direct selection of traits difficult. The present experiment aimed to identify the maize hybrids suitable for dual purpose under low moisture stress condition, identification of secondary traits associated with fodder and grain yield and calculation of correlation which could be useful for effective selection for fodder and grain yield. Using 37 maize genotypes, evaluated under 3 moisture regimes for green fodder and grain yield. Association analysis was done among the secondary traits and yield. Among the genotypes significant variability was showed for all characters. The hybrids BAUIM-2 x HKI-1532 and BAUIM3 x HKI-1532 found suitable for dual purpose exhibited maximum GFY/P under irrigated, rainfed and stress (50kPa) con...
Fifteen million farmers in India engaged in Maize cultivation. India would require 45 MMT of Maiz... more Fifteen million farmers in India engaged in Maize cultivation. India would require 45 MMT of Maize by 2022. But, only 15% of cultivated area of maize is under irrigation and water shortage has been a challenge for sustainability of maize production. Water deficit stress (WDS) during pre-flowering and grain filling stages massively affects the plant performance due to imprecise traits function. Thus, the effect of WDS on non-drought tolerant (NDT) and drought tolerant (DT) maize lines were investigated. WDS increased the flowering days, days to maturity, anthesis silk interval, decreased the leaf number, abnormal expression of secondary stress responsive traits, loss of normal root architecture which overall lead to a reduction in GY/ha. WDS at flowering and grain filling stage leads to significant yield penalty especially in NDT lines than DT lines. The yield penalty was ranged from 34.28 to 66.15% in NDT and 38.48 to 55.95% in DT lines due to WDS. Using multiple statistics, traits ...
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