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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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19892
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Author: PATEL, H. R. × End date: 1989 × Start date: 1982 ×
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    ThesisItemOpen Access
    SOLAR RADIATION, PAR AND PHOTOSYNTHETIC EFFICIENCY IN RELATION TO GORWTH AND YIELD OF PIGEONPEA (Cajanus cajan [L.] Millsp.) BASED DIFFERENT INTERCROPS WITH DIFFERENT LEVELS OF FERTILIZER
    (AAU, Anand, 1989) PATEL, H. R.; Mehta, A. N.
    A field experiment with twenty eight different treatments was conducted in collaboration with Agronomy Department at Anand during the kharif season of the year 1987-88 with the broad-based objectives of evaluating the role of intercepted PAR in the most suitable companion intercrop, assessment of economics of fertilizer use under different intercropping systems and to determine growth, light use efficiency, attenuation of PAR and yield stability of different intercrops in pigeonpea based intercropping system in Middle Gujarat conditions. The statistical analysis on the data of grain yield of pigeonpea and pigeonpea equivalent revealed that different cropping systems had significant effect on grain yield. Intercropping with soybean, groundnut, cowpea, blackgram and greengram did affect pigeonpea yield in comparison to solid stand of pigeonpea, while pearlmillet competed with pigeonpea owing to being a C-4 type and reduced the pigeonpea grain yield. Pigeonpea equivalent grain yield analysis also revealed that pearlmillet, groundnut, cowpea, greengram, soybean and blackgram intercrops appears to be most remunerative with pigeonpea. For yield stability of both the component crops in terms of grain yield, the order of intercrops viz., pigeonpea + groundnut, pigeonpea + cowpea, pigeonpea + greengram and pigeonpea + blackgram is preferred, while for in terms of gross return (Rs/ha ), the same 6rder is found suitable for intercropping. In a solid stand of pigeonpea, due to absence of companion crop, LAI peak occurred earlier (85 DAS). But for intercropped pigeonpea, LAI peak attained in latter part of reproductive stage and seems to have resulted higher rate of assimilates and partitioned for higher pigeonpea grain yield except for pigeonpea + pearlmillet cropping system. Different cropping systems, growing periods and their interaction had a significant effect on absorption coefficient of PAR light interception for pigeonpea. Per cent interception dropped after 155 DAS for pigeonpea sole, while except pigeonpea + pearlmillet rest of the cropping systems achieved higher per cent PAR interception during reproductive stage and benefited for partitioning higher grain formation for intercropped pigeonpea. The periodic photosynthetic conversion efficiency (DM produced per unit of intercepted PAR (kg ha-1 /MJM-2 ) for intercropped pigeonpea observed more or less suppressed in early stage and after harvest of intercrop, the conversion efficiency of intercropped pigeonpea was highly accelerated with canopy development which seems to have contributed for partitioning higher grain formation compared to sole stand of pigeonpea, except pigeonpea + pearlmillet system. The conversion efficiency of sole pigeonpea, during reproductive stage remained more or less constant, resulted in highest straw and lower grain formation. Looking to the overall conversion efficiency of both the component crops, except pigeonpea + pearlmillet and pigeonpea + soybean, rest of the cropping systems found superior.
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    ThesisItemOpen Access
    STUDIES ON IMMUNE RESPONSE TO NEWCASTLE DISEASE VIRUS VACCINES IN CHICKENS
    (AAU, Anand, 1989) PATEL, H. R.; JHALA, V. M.
    Studies on immune response to Newcastle disease virus (NDV) vaccines i n cockerel chicks, layers , broilers and pullets were undertaken experimentally at the Department of Bacteriology, Veterinary College, Anand. In the first experiment, 196 day-old White Leghorn (WLH) cockerel chicks from immunized parent flock were used to assess the levels of maternal antibodies at different ages and their effect on immune response to 'F' strain of NDV. The maternal antibody titres in chicks were ranging from log2 1.0 to 3.0 before vaccination. They were highest in day-old chicks and lowest in 15 day-old chicks which were significantly ( P < 0.05) different . In control chicks, the titre declined at a constant rate and was undetectable at 19th day of age, determining five days as half life time for maternal antibodies. Post-vaccination titres at 7th, 14th and 21st day in chicks vaccinated at 1st, 5th, 10th and 15th day of age were not significantly different in between the groups, though the difference was significant within the groups. This indicated that maternal antibody titres upto logp 3.0 did not interfere the immune response when chicks were vaccinated even at one day of age. The ohallenge study at three weeks post-vaccination revealed that the minimum HI titre of log2 3.0 was protective in cockerel chicks. In second experiment, 45 WLH birds of 18 week-old were used for comparative study of immune response to inactivated OE and live R2B vaccines and their effect on egg production. Peak antibody response was observed at 20 weeks of age in birds vaccinated at 18 weeks of age either with inactivated OE or live R2B vaccines. There was no significant difference in HI titres in between the two groups upto 26 weeks except 24th week. Twenty eighth week onward, the HI titres were significantly higher in birds vaccinated with inactivated OB vaccine (Group A) than those vaccinated with live R2B vaccine (Group B). The overall serological response was higher in birds of group A than birds of group B. During the period of 18 weeks of lay, the birds of group A averaged 99.3 eggs (71.09 per cent) per hen, whereas those of group B averaged 83.7 eggs (59.51 per oent) per hen. Control birds (Group C) produced 89.6 eggs (63.84 per oent) per hen. Thus comparing with control group, inactivated OE vaccine did not affect the egg production but rather boosted it , whereas live R2B vaccine suppressed the egg production.