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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: Agronomy × Author: DOBARIYA, D. K. × End date: 1995 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    EFFECT OF IRRIGATION MANAGEMENT IN CONJUNCTION WITH NITROGEN AND ASCORBIC ACID ON GROWTH, YIELD AND QUALITY OF MUSTARD Cv. GM-1
    (AAU, Anand, 1994) DOBARIYA, D. K.; MEHTA, H. M.
    A field experiment was conducted on loamy sand soil of College Agronomy Farm, Gujarat Agricultural University, Anand Campus, Anand, to study the effect of irrigation management in conjunction with nitrogen and ascorbic acid on growth, yield and quality of mustard Cv. GM-1 during the year 1991-S2 and 1992-93. The treatments comprised combincitions of three levels of irrigation (irrigation at critical stages, 0.4 and 0.6 IW:CPE) and two levels of irrigation depth (50 and 75 mm], relegated to main plots,. The sub-plot treatments comprised combinations of three levels of nitrogen (25, 50 and 75 kg N ha-1 ) and two levels of ascorbic acid (0 and 25 ppm). Thus, thirty six treatment combinations were tested with three replications. The recommended dose of P2O5 (50 kg ha-1) was given common, to all the experimental plots. The results revealed that irrigation schedule based on IW:CPE 0.6 markedly increased LAI, CGR, RGR and NAR during both the yeara. The yield atributes viz., seeds siliqua" , siliquae p1-1 and seed wt p1-1 were significantly increased in 0.6 IW:CPE over 0.4 IW:CPE, though remained at par with irrigation at critical stages. Seed yield was significantly increased in 0.6 IW:CPE (2001, 2821 and 2411 kg ha-1) and irrigation at critical stages (1979, 2649 and 2314 kg ha-1), when compared with 0.4 IW:CPE (1647, 2394 and 2021 kg ha-1 during both the years and in pooled analysis The stalk yield and HI remained unaffected due to irrigation during both the years. Irrigation with 75 mm depth increased LAI during both the years. The CGR, RGR and NAR were higher in 50 ram irrigation depth during first year, and 75 mm irrigation depth during second year of study. Higher number of seeds siliqua-1 were recorded in 75 mm irrigation depth while siliquae p1-1 were recorded in 50 ram irrigation depth during first year. The highest seed yield was produced with 50 ram (1955 kg ha-1) over 75 mm (1796 kg ha-1) irrigation depth during first year, however, trend remained the same during second year and in pooled analysis though not significant. The stalk yield and HI were not influenced by irrigation depth. Fertilizing mustard with 75 kg N ha-1 recorded y remarkably increased LAI, CGR, RGR and NAR during both the years. Similarly, yield attributes viz., number of siliquae p1-1 and seed wt p1-1 also increased during both the years and in pooled analysis. This level also yielded ^significantly the highest seed yield (2086, 2727 and 2406 kg ha-1) over 50 kg N ha-1 (1902, 263Sand 2269 kg ha-1) and 25 kg N ha-1 (1639, 2503 and 2071) during both the years as well as in pooled analysis. This level produced higher stalk yield during both the years, whereas HI remained unaffected due to nitrogen levels. Higher LAI was recorded under 25 ppm ascorbic acid during both the years, whereas, CGR, RGR and NAR remained unaffected. Among yield attributes, the number of siliquae p1-1 ,• seed wt p1-1 and 1000-seed wt were increased in 25 ppm ascorbic acid during both the years. This treatment also yielded significantly higher seed yield (1962, 2674 and 2318 kg ha-1 ) over no application of ascorbic acid (1789, 2569 and 2179 kg ha-1 ) during both, the years and in pooled analysis. The stalk yield and HI remained unaffected due to ascorbic acid treatment. Irrigation at 0.6 IW:CPE or at critical stages increased oil content over 0.4 IW:CPE during first year. The protein content remained unaffected due to irrigation during both the years. The higher oil and protein yield were recorded under 0.6 IW:CPE and irrigation at critical stages over 0.4 IW:CPE during both the years. Similarly, N, P and K uptake were increased in 0.6 IW:CPE.and also in irrigation at critical stages over 0.4 IW:CPE during both the years. The higher CU (265.8 and 278.1 mm) was found in 0.6 IW:CPE during both the years. Higher WUE was recorded in irrigation at critical stages (8.89 kg seed ha-mm-1) during first year and in 0.4 IW:CPE (12.19 kg seed ha-mm-1) during second year. The oil content, oil yield, protein content and protein yield were not influenced by irrigation depth during both the years. Similarly, N, P and K uptake remained unaffected due to irrigation depth during both the years. The CU was not affected by irrigation depth, whereas WUE was higher in 50 ram (8.14 and 11.51 kg .seed ha-mm-1 ) irrigation depth during both the years. Increasing levels of N significantly decreased oil content but increased protein content but oil and protein yield were increased with increase in N levels, during both the years. Among N levels, 75 kg N ha-1 significantly increased N, P and K uptake over 50 and 25 kg N ha-1 during both the years. Application of nitrogen markedly increase CU and WUE and it was found to increase with increasing levels of N. The oil and protein contents remained unaffected,whereas oil and protein yields were higher in 25 ppm ascorbic acid over no application of ascorbic acid. The N uptake was higher in first year and P uptake was higher during both the years in 25 ppm ascorbic acid, whereas K uptake remained unaffected. No appreciable differences were found in CU and WUE by ascorbic acid during both the years. The interaction effect I x D and I x D x N exhibited significant effect on seed yield and yield attributing characters, raore or less similar trend was also observed on analytical growth parameters as well as in respect to P uptake. The results of present study indicated that the highest production and profit (Rs. 18209 ha-1) from mustard can be secured by scheduling irrigation at TW:CPE ratio 0.6 with 50 mm irrigation depth and fertilizing the crop with 75 kg N ha-1 + seed soaking with 25 ppm ascorbic acid along with the recommended dose of P2O5 (50 kg ha-1) under middle Gujarat Agro-climatic zone-Ill on loamy sand soil.