The present investigation was conducted to study the effects of hydropriming and different sowing dates on growth and yield attributes of wheat (Triticum aestivum L.) during Rabi season of 2014-15.The experiment was conducted in Randomised Block Design with three replications. The highest germination percentage was recorded at T4 [hydropriming] 22nd Nov + 16 hrs. ( 94.04%), plant height highest was recorded at T4 (95.23cm), highest number of tillers at T4 (4.40), number of spikelet per spike highest at T4 (18.73), numbers of grains per spike highest at T4 (53.13), root length (16.07cm), test weight (43.33g), grain yield (42.79 q/ha), harvest index (63.46%) recorded similar result in same treatment. Therefore it may be concluded that 22nd Nov with 16 hrs. of hydropriming treatment can be recommended to PBW-343 wheat grower for obtaining better growth and yield.
The experiment was conducted to study the effect of insecticides and stages of insecticidal sprays on seed yield and yield components in greengram. The investigation was carried out in Department of Genetics and Plant Breeding, during Kharif 2012. The experiment was laid in factorial randomized block design (FRBD) consisted of 15 treatment combinations involving two factors with three replications. Among the five test insecticides, spraying of malathion @ 2 ml/l recorded significantly more number of pods/plant (20.75), pod weight (20.45g), seed yield/plant (3.17 g), seed yield/hectare (949 kg) and less percentage of infested pods (5.35%) as well as infested seeds/plant (2.66%). It was followed by nimbicidine and methyl parathion. Whereas reciprocal values for these seed yield parameters were noticed in the unsprayed control plants (16.13, 16.53g, 1.84g, 725 kg, 14.13% and 7.89%, respectively). Similar results were recorded in spraying of insecticides at 20 and 10 Days before harvest compare to 20 or 10 Days before harvest. Interaction effect between insecticides and stages of insecticidal spraying were found non-significant for most of the seed yield and quality parameters.
The present investigation with thirty-four accessions of rice (Oryza sativa L.) genotypes (26 Advanced breeding lines (ABL’s),7 Dhan varieties and one check) were investigated to study variability, correlation and path analysis for yield contributing characters carried out at the Field Experimentation Centre, Department of Genetics and Plant Breeding, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj during Kharif-2021 in Randomized Block Design with three replications. NDR 359 rice variety was used as the check. The data was recorded for 13 quantitative traits viz Days to 50% flowering, Plant height (cm), Flag leaf length (cm), Flag leaf width (cm), Number of total tillers per hill, Number of panicles per hill, Panicle length (cm), Number of spikelets per panicle, Days to maturity, Biological index, Harvest index (%), Test weight (g), Grain yield per hill (g) using agro-morphological traits. The mean sum of squares due to genotypes was highly significant for all the quantitative characters in ANOVA. The characters with high range estimates of GCV and PCV (Grain yield per hill), heritability (days to maturity) and genetic advance as percent mean (number of spikelets per panicle,) should be given top priority during selection. For character association, grain yield per hill showed positive significance with flag leaf length, number of spikelets per panicle, biological yield, harvest index, number of tillers per hill, biological yield because it help in determining the nature and extent of the relationship existing between the yield and its contributing components and their association.Path analysis further proved about the direct and indirect effect of characters on grain yield. Days to 50% flowering, flag leaf width, number of panicles per hill, biological yield, harvest index showed positive direct effect at both genotypic and phenotypic level indicating their importance in breeding programme. So direct selection of the above characters will be rewarding.
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