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Anand Agricultural University, Anand

Anand Agricultural University (AAU) was established in 2004 at Anand with the support of the Government of Gujarat, Act No.(Guj 5 of 2004) dated April 29, 2004. Caved out of the erstwhile Gujarat Agricultural University (GAU), the dream institution of Sardar Vallabhbhai Patel and Dr. K. M. Munshi, the AAU was set up to provide support to the farming community in three facets namely education, research and extension activities in Agriculture, Horticulture Engineering, product Processing and Home Science. At present there seven Colleges, seventeen Research Centers and six Extension Education Institute working in nine districts of Gujarat namely Ahmedabad, Anand, Dahod, Kheda, Panchmahal, Vadodara, Mahisagar, Botad and Chhotaudepur AAU's activities have expanded to span newer commodity sectors such as soil health card, bio-diesel, medicinal plants apart from the mandatory ones like rice, maize, tobacco, vegetable crops, fruit crops, forage crops, animal breeding, nutrition and dairy products etc. the core of AAU's operating philosophy however, continues to create the partnership between the rural people and committed academic as the basic for sustainable rural development. In pursuing its various programmes AAU's overall mission is to promote sustainable growth and economic independence in rural society. AAU aims to do this through education, research and extension education. Thus, AAU works towards the empowerment of the farmers.

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Subject: Agricultural Statistics and Informatics × Author: Patel, Jayantibhai Sankabhai × End date: 1999 × Start date: 1990 × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    ON COMPARISON OF PLANT BREEDING DESIGNS FOR GENETIC ANALYSIS
    (AAU, Anand, 1997) Patel, Jayantibhai Sankabhai; Patel, N. M.
    The progenies developed through North Carolina designs I, II and III in two F2 populations of crosses GT 5 X A 119 and GT 7 x A 145 of bidi tobacco alongwith the progenies developed through a 5 x 5 diallel mating design in all possible ways were used to study the genetic variances. The mean performance of the progenies of all NC designs and their selfed progenies of parent plants (F3s) were also studied. Among the progenies developed through North Carolina designs I, II and III, the progenies of NCD II recorded higher mean performance for cured leaf yield and leaf length in both the crosses, while they were superior in plant height and leaf breadth in cross 2. They also showed early flowering in both the crosses. In cross 1 progenies of NCD I showed higher mean performance for plant height and number of leaves. Higher mean performance for cured leaf yield and leaf length with early flower initiation in both the crosses and for plant height in cross 2 was observed in NCD II and III than their selfed progenies (F3). NCD I progenies were superior for plant height and number of leaves/plant in cross 1 than their F3s. Mean performance of leaf breadth was higher in all NC designs than their respective Fas in both the crosses. Additive variances for all the characters were found nonsignificant in NCD I (both the crosses) and in NCD II in cross 2. Number of leaves/plant in NCD II and days to flower in NCD III in cross 1 and cured leaf yield and plant height in both the crosses exhibited significant additive variances. Barring leaf breadth all the additive variances in diallel were significant. In cross 1 none of the dominance variances in NCD II and III was significant. In NCD I dominance variances for cured leaf yield and leaf length in both the crosses, number of leaves and leaf breadth in cross 1 and days to flower and plant height in cross 2 were significant. In cross 2 cured leaf yield in NCD II and plant height in NCD III exhibited significant dominance variance. Dominance variances for plant height, leaf length and leaf breadth were significant in diallel design. Dominance ratio were inconsistent in different NC designs within crosses barring the plant height which showed partial dominance in all NC designs. Barring the plant height in cross 1 all characters in NCD III and diallel design expressed partial dominance of genes. The highest percentage of significant additive and dominance variances were observed in diallel design and NCD I, respectively. All the additive variances were positive in NCD II and diallel design. The highest percentage of variances with SE lower than their estimates was observed in diallel and NCD I for additive and dominance variances, respectively. Significance and standard errors of both the variances and signs of additive variance were found to be dependent on the type of mating design. Considering significance, signs and SE of the estimated variances and practical application in field diallel design was found to be most suitable design for the study of genetic variances in quantitative traits.