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Vārānasi, India

Saha R.,Banaras Hindu University | Saha R.,UP College | Singh K.,Banaras Hindu University | Upadhyay A.,Banaras Hindu University | And 2 more authors.
Indian Journal of Agricultural Sciences | Year: 2012

A field experiment comprised of treatments comprising 14 crop sequences were conducted to study the effect of crop diversification in rice (Oryza sativa)-wheat (Triticum aestivum) cropping system on system productivity, economics and soil health. The results revealed that overall productivity of the system in terms of system rice grain equivalent yield was noticed significantly highest in rice-potato-blackgram (28.88 tonnes/ha/yr) compared to rest of the cropping sequences, followed by rice-maize (cob) + veg. pea (1:2) - greengram cropping sequence (25.67 tonnes/ha/yr). In addition to that inclusion of legumes either as green manure crop or grain/fodder legume proved crucial in maintenance of soil bio-physico-chemical properties of the soil. Therefore, diversification of rice-wheat system under irrigated condition by inclusion of moong crop after potato or wheat could enhance the overall productivity and profitability of the farm, besides improving the soil sustainability on long term basis.

Maurya S.K.,Narendra Dev University of Agriculture and Technology | Singh O.P.,Narendra Dev University of Agriculture and Technology | Singh O.P.,UP College | Srivastava S.,Narendra Dev University of Agriculture and Technology
Indian Journal of Animal Sciences | Year: 2013

Ascorbic acid levels were investigated in the seminal plasma of Murrah buffalo bulls and its relation was investigated with various parameters of sperm morphology. Semen samples were collected using bovine artificial vagina. Semen volume, sperm concentration, initial motility, livability, sperm abnormality, hypo osmotic swelling, acrosomal integrity and post thaw motility were assessed using standard procedures. Ascorbic acid contents in the seminal plasma were estimated by reverse phase high performance liquid chromatography (RP-HPLC) procedure using UV detection at 254 nm. Bulls were divided into 3 categories depending on the extent of sperm abnormality. The mean ± SEM values of seminal plasma ascorbic acid (mg/ dl) were 4.81 ± 0.08, 3.17 ± 0.09 and 1.79 ± 0.05 in good, medium and poor groups of Murrah buffalo bulls. The seminal plasma ascorbic acid differed significantly in all 3 groups. The seminal plasma ascorbic acid level was positively correlated with spermatozoa with volume/ ejaculate (r2 = 0.710), conc./ ejaculate (r2 = 0.915), initial motility (r2 = 0.944), livability (r2 = 0.933), acrosomal integrity (r2 = 0.955), HOS reactiveness (r2 = 0.946) and post-thaw motility (r2 = 0.906); whereas it was negatively correlated with sperm abnormality (r 2 = -0.896).

Sanwal S.K.,Indian Institute of Vegetable Research | Singh B.,Indian Institute of Vegetable Research | Verma S.S.,Indian Institute of Vegetable Research | Verma S.S.,UP College
Indian Journal of Agricultural Sciences | Year: 2012

Sixty-seven germplasm lines of okra [Abelmoschus esculentus (L.) Moench] of diverse eco-geographical origin were undertaken in present investigation to determine the genetic divergence following multivariate and canonical analysis for fruit yield and its eight component traits. The 67 genotypes were grouped into five clusters depending upon the genetic architecture of genotypes and characters uniformity and confirmed by canonical analysis. Eightynine per cent of total genotypes (60/67) were grouped in two clusters (I, II), while apparent diversity was noticed for 11% genotypes (7/67) that diverged into three clusters (III, IV and V). The maximum intercluster distance was noticed between IV and V (23.38), followed by III and V (21.46), I and V (16.84). The cluster IV was very unique having genotypes of high mean values for most of the component traits. Considering high mean and inter cluster distance breeding plan has been discussed to select desirable plant types.

Sanwal S.K.,Indian Institute of Vegetable Research | Singh B.,Indian Institute of Vegetable Research | Singh V.,UP College
Indian Journal of Agricultural Sciences | Year: 2015

Genetic variance was evaluated in one hundred sixty genotypes of garden pea (Pisum sativum L.) for nine morphological traits through multivariate analysis. Analysis of variance indicated that the genotypes varied significantly among themselves in respect of 9 characters studied. The genotypes were grouped into 14 clusters depending upon their morphological similarity through principal component analysis. Clustering pattern indicated that majority of genotypes, i.e. 113 (70%) were genetically close to each other and grouped in 3 clusters, while apparent diversity was mainly noticed due to 47 genotypes (30%) distributed over 11 clusters. The maximum inter-cluster distance was noticed between III and XIV (61.49) followed by III and VII (51.33) and III and XII (53.27). Considering cluster mean, the genotypes of cluster III might be selected as a suitable parent for future hybridization programme. The contribution of each character towards the expression of genetic divergence indicated that 10-pod weight contributed maximum (58.29) followed by days to 50% flowering (23.83), plant height (11.31) and shelling percent (4.95%). These four characters contributed more than 98% to the total genetic divergence in the genotypes studied.

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