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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: Plant Breeding × Author: Patel, J. R. × Start date: 1976 × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    HETEROSIS AND COMBINING ABILITY STUDIES IN FORAGE SORGHUM
    (AAU, Anand, 1980) Patel, J. R.; PATEL, G. J.
    The expression of various characters in the hybrids/ recombinants depends upon tbe extent of genetic variation as well as genetic divergence existing among parents. Consequently, a high yielding genotype may not necessarily transmit its superiority in ciross combinations. The present investigation was, therefore, undertaken to estimate heterosis and combining ability for forage yield and its attributes in sorghum. The experimental material comprised seven male-sterile lines (KS-5, KS-9, KS-12, KS-18, Martin, Redlan and Craigmile), seven male parents (B.P.53, W-10, S.1049, Texas Sweet, Piper, Early Sumac and Atlas) and their 49 hybrids. The experiment was conducted for two years at the Gujarat Agricultural University, Anand Campus, using randomized block design with two replications. The material was seeded in two row plots, the inter and intra row spacings being 60 and 7.5 cm respectively. The study was confined to nine traits of which days to flower and green as well as dry fodder yields were recorded on plot basis, while for plant height, stem girth, number of leaves, leaf length and width as well as number of tillers , five random plants were selected from the net plot and the mean values were computed. Heterosis was estimated in relation to the mid-parental value, while the combining ability effects were estimated using line x tester analysis method. The estimates of heterosis were significant for all traits during both years, but the hybrids showed differential behaviour in relation to seasons for most of the traits. Martin x S.1049, and Martin x W-10 were consistent for heterotic estimates of green and dry forage yields respectively. Among males, Texas Sweet was found to be a better donor for stem thinness and tillering ability, while B.P.53 was a good nicker for leaf width. Anong females, Martin and Craigmile were better donors for plant stature and stem thinness respectively. The SCA estimates revealed the superiority of KS-18 x Atlas for early flowering, Martin x Piper for plant stature, KS-9 X Early Sumac and Craigmile x Early Sumac for stem thinness, KS-9 x B.P.53 for leaf attributes, KS-18 x W-10 and Craigmile x S.1049 for tillering ability and KS-18 x B.P.53 as well as KS-9 X Texas Sweet for green and dry fodder yields. The correlation coefficients worked cut for greea as well as dry fodder yields of hybrids and their mid-parental values revealed that higher yielding parents may not give superior hybrids probably because of lack of variation in their genetic make up. The predominance of nonadditive effects in the expression of yield and its attributes supports that the use of commercial hybrids is the best method for utilizing such type of gene effects to the benefit of human society. In case varietal improvement by recombination techniques is to be done, cyclic method of breeding will be more advantageous.