Thumbnail Image

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.

Browse

20111
Reset filters
Subject: Horticulture × End date: 2019 × Thesis Type: M.Sc ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    Studies Genetic Diversity of Citrus in East Siang District Arunachal Pradesh
    (College of Horticulture and Forestry, Central Agricultural University, Pasighat, 2011-12-09) Rabha, Archan; Singh, Barun; Hazarika, B.N.
    Abstract Assessment of variability for yield and its components with the aid of suitable genetic parameters becomme absolutely essential before designing an effective breeding programme. Hence, in the present investigation, an attempt has been made to study the available genetic varialility and to select superior genytypes with the help of suitable genetic parameter in citrus by utilizing 32 genytypes based on 20 important quantitative characterss and 34 qualitative characters. From genetic parameters like genotypc and phenotypic coefficient of variability and genetic advance, it could be concluded that characters like, leaf lamina lenght , leaf lamina width, ratio (leaf lamina length/leaf lamina width), leaf thickness, fruit length, fruit breadth, fruit weight, rind weight , rinn thickness, juice content, number of seeds per fruit, seed weight, seed length, seed breadth, TSS, titrable acidity, vitamin C, reducing sugar, total sugar and fruit yield per tree could be used as selection criteria for development of effective and productive plant types in citrus Narrow differences were oblserved between the values of GCV and PCV for almost all the characters. The highest heritability was recoreded for juice content, fruit length followed by rind thickness. Moreover, on the basis of correlation studies it has been found that, leaf lamina length, leaf lamina width, rind thickness, seed length, frit length , ratio (leaf lamina length/leaf lamina width) were found to be major contributors towards fruit yield per tree. Present study on isozymes revealed a good variability among the genytypes collected. In peroxidase assay, 12 loci and 52 alleles were identified among the 32 genytypes. The relative mobility values (Rm values) of theloci / bands ranges between 0.20 and 0.09.