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Central Agricultural University, Pasighat

The Central Agricultural University has been established by an act of Parliament, the Central Agricultural University Act, 1992 (No.40 of 1992). The Act came into effect on 26th January, 1993 with the issue of notification by the Department of Agricultural Research and Education (DARE), Govt. of India. The University became functional with the joining of first Vice-Chancellor on 13th September, 1993. The jurisdiction of the University extends to six North-Eastern Hill States viz., Arunachal Pradesh, Manipur, Meghalaya, Mizoram, Sikkim and Tripura, with headquarters at Imphal in Manipur. College of Horticulture & Forestry, a constituent College of the Central Agricultural University, Imphal, Manipur, was established on 7th March 2001 at Pasighat, Arunachal Pradesh on the bank of beautiful river Siang.

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20173
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Subject: Vegetable Science × End date: 2017 × Start date: 2017 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Evaluation of Dolichos Bean [Lablab purpureus (L.) Sweet] Genotypes against Aluminium Toxicity
    (College of Horticulture and Forestry, Central Agricultural University, Pasighat, 2017-07-25) Ansari, Mohd. Talha; Warade, S. D..; Mailappa, A.S.
    The present investigation was carried out in the year 2016-2017 in naturally ventilated polyhouse of Vegetable Experimental Farm, Department of Vegetable Science, College of Horticulture and Forestry, Central Agricultural University, Pasighat, Arunachal Pradesh. The experiment was laid out in Factorial Completely Randomized Design with 2 factors (twenty dolichos bean genotypes with four aluminium (Al) level i.e. 0, 15, 30, 45 ppm) and three replications. Individual main effect and their interaction effects were studied for vine length at weekly interval (2nd -4th), morpho-physiological characters (biomass, root length, root tolerance index, root dry matter, shoot dry matter, leaf dry matter, total dry matter, uptake of P and Al), quality parameters (total protein, proline and total chlorophyll), parameters of soil (pH, EC, available P and extractable Al) at 4th week after sowing whereas yield parameters (pod weight, pod length, pod width, no of seed per pod and yield) at harvesting. In the present study, genotypes of dolichos bean exhibited significant differences for all characters. Aluminium treatment also expressed significant differences for all characters. However, interaction effect was found significant for all studied characters except vine length at all stages. Vine length at weekly interval, biomass, root length, root dry matter, shoot dry matter, leaf dry matter, total dry matter, uptake of phosphorus reduced significantly due to Al treatment except Al uptake. There was significant increase in total protein and proline content of plants at 4th week due to Al treatment, whereas significant reduction in chlorophyll content was observed. In soil parameters, pH and available P decreased with Al treatment, while EC and extractable Al increased significantly with respect to control. All the yield parameters were significantly reduced due to Al treatment. At lower concentration (15 ppm) there was no significant effect on vine length and yield parameters whereas morpho-physiological, soil and quality parameters were significantly affected. At higher concentrations (30 and 45 ppm) all the parameters were significantly influenced. From the present study it can be concluded that G1, G2, G4, G5, G10 and G16 are tolerant based on morpho-physiological characteristic and root tolerance index. Genotypes G1, G2, G4, G11 and G18 were found superior for yield characteristics whereas, G4 and G5 were superior for quality parameters. Overall genotypes G1 (Pusa Sem 3), G2 (VRSEM-207), G4 (VRSEM-601) were found tolerant to aluminium toxicity as well as high yielding.
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    ThesisItemOpen Access
    Studies on genetic diversity among indigenous landraces of cucumber (Cucumis sativus L.) of North Eastern India through morphological traits and seed protein profiling
    (College of Horticulture and Forestry, Central Agricultural University, Pasighat, 2017-07-25) Chakraborty, Dhiman; Warade, S. D.; Wangchu, L.
    Analysis of variance revealed significant differences among the genotypes for all the characters studied. High PCV and GCV, heritability and genetic gain were observed for average fruit weight, fruit yield per plant, number of fruits per plant, fruit length, number of branches per plant, number of seeds per fruit and 100 seed weight. Correlation studies indicated that fruit yield per plant was positively and significantly correlated with average fruit weight, fruit length, fruit diameter and number of seeds per fruit which indicated the importance of these traits in selection for yield. Path analysis revealed that maximum positive direct effect on fruit yield per plant was imposed by average fruit weight followed by number of fruits per plant, node bearing first pistillate flower, days to first pistillate flower anthesis, 100 seed weight and total soluble solids at genotypic level. This indicated that these are the real independent characters and have maximum contribution towards increase in fruit yield per plant. Divergence study revealed average fruit weight contributed maximum per cent to the diversity followed by 100 seed weight, number of branches per plant, fruit yield per plant, fruit diameter and days to first harvest. Maximum inter cluster distance was observed between cluster IV and VI which indicated that the genotypes within these clusters were highly divergent. SDS-PAGE analysis showed considerable variation in band number of protein which ranged from 12-30. Protein banding profile showed that the genotype CHFC-4 was most distantly related to CHFC-26. Hence, it was recommended that these two genotypes could be utilized for crossing programme to create more genetic diversity. SDS-PAGE marker data provided more sub groupings and revealed higher amount of diversity as compared to morphological data in present study.
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    ThesisItemOpen Access
    Studies on Nutritive and Anti-nutritive Components of Important Underutilized Perennial Vegetables of Arunachal Pradesh (North East Region of India)
    (College of Horticulture and Forestry, Central Agricultural University, Pasighat, 2017-08-25) Bui, P. Mary; Warade, S. D.; Tayeng, Tissu
    The analysis of nutritional compositions exhibited that the maximum reducing sugar content was found in Houtttuynia cordata (11.15+ variance 0.02%), total carbohydrate content in leaves of moringa oleifera (40.43+0.02 g/100 g), starch content in Sauropus androgynus (1227.96+0.02 mg/100g),Cellulose contentd in Sauropus androgynus (332.05+0.02 mg/100g), crude fibre content in Litsea cubeba (43.41+0.03%), free fatty acid content in the leaf of Moringa oleifera (5.61+0.01 Mg/KOHg). The highest total free amino acid content was found in Passifora edule (30.54+0.02mg/100 g), protein content in Passiflora edule (45.73+0.02 umole/g), methionine content in Moringa oleifera (1.90+0.02 mg/g), crude protein content in Passiflora edule (7.88+0.02%), thiamine content in Polygonum chinense (47.97+0.03 mg/100g), vitamin C content in Passiflora edulis (329.87+0.02 mg/100g) and vitamin E content in Elatostema sessile (15.99+0.01 mg/100g). The highest chlorophyll a content was in the leaf Moring oleifera (0.40+0.02 mg/g), chlorophyll b and total chlorophyll content in Pouzolzia viminea were (0.65+0.02 mg/g) and (0.99+0.01 mg/g) respectively, carotenoids condtent in Passiflora edulis (22.08+0.01mg/100g). The N contentwas found highest in Pssiflora edulis (12.61+0.03 g/kg) whereas, other minerals like P, K and Na was found highest in malebud of Musa arunachalensis (0.76+0.01%), (8.00+0.01 mg/g) and (13.50+0.03 ppm) respectively. Iron content was found highest in Eryngium foetidum(9.2+0.03 mg/100g). The analysis of antinutritive components revealed that the highest cynogen content was found in Bambusa sp. (65.52+0.02 mg/100g) and lowest in Polygonu chinense (5.07+0.01 mg/100g), highest phytic acid content in Sauropus androgynus (735+0.02 mg/100g) and least in Pouzolzia viminea (57.00+0.03mg/100g), highest tannin content in Polygonum chinense (196+0.01 mg/100g) and least in Houttuynia cordata (23.52+0.03mg/100 g). From the above 24 perennial vegetable taken for analysis, leaves of Moringa oleifeara, Sauropus androgynus, Passiflora edulis, Piper pedicellatum, malebud of Musa arunachalensis and polygnum chinense were found to be rich in nutritional components with very low concentration of anti-nutritional components. But slightly higher concentration of anti-nutritional components were found in Moringa oleifera leaves, Sauropus androgynus and Passiflora edulis. The research work performed confirms that the wild edible plants are rich source of nutrient, vitamin and mineral supplements for indigenous tribal population and hence, reduce the vulnerability of local communities to nutrition food scarcity