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Birsa Agricultural University, Ranchi
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ThesisItem Open Access Morpho-Physiological Analysis of Yield in Different Rice Genotypes(Birsa Agricultural University, Ranchi, 2002) Rajesh Kumar; A.K.VermaAn experiment was conducted at the Birsa Agriculture University Farm,Ranchi, during rainy season of 1999 on sandy clay loam soil having 0.43% organic carban, 242.25, 22.30 and 187.23 Kgha-1 available N,p2o5 and K20, respectively with ph 6.2 to study the morpho-physiological analysis of yield in different rice genotypes under low land situation. Altogether eight rice genotype were tested under four replications in randomized block design. Seedlings of rice genotype were raised for transplanting and 21 days old seedling were transplanted. Introduction of hybrid rice brought in the necessities of testing their ability for higher production. The initial experience with hybrid rice in India shows that rice yield could be increased by about 1-2 tonnes /ha over high yielding verities of rice. For increasing the productivity of rice varieties the studies of morpho –physiological parameters was important for suitable crop type that can ensure maximum rice production. Keeping in view of the above necessities of this region, experiment was conducted with a view to select a suitable high yielding hybrid rice genotypes for increasing the production of rice as rice is a staple food of Jharkhand state. On the basis of one year of experimentation, it was observed that among 8 rice genotypes,PHB-71 (hybrid rice) showed its superiority over all the rice genotypes tested. Maximum grain weight/panicle (1.89 g ) , grain(60q/ha), Straw yield (75.4q/ha) and 1000 grain weight (27.70g) were recorded by the rice genotype PHB-71 and found to be significantly superior than rest of rice genotypes The grain yield recorded by PHB71 was 51.1 % higher as compared to the local check Birsa Dhan-201. Higher root length root volume and root dry weight as well as higher dry matter accumulation were also recorded by the rice genotype PHB-71 at all the growth stages, ie., 30,60,and 90 days after transplanting. It was also further observed that the rice genotype PHB-71 having higher value of crop growth rate, relative growth rate, net assimilation rate, leaf area index ,leaf area duration ,i.e. , 15-30,45-60,and 75-90 days after transplanting.ThesisItem Open Access Effect of Pre-Sowing Seed Soaking On Rice Productivity under Upland (Rainfed) Condition(Birsa Agricultural University, Ranchi, 2002) Manoj Kumar; A.K.VermaRice ( oryza staviya) I sone of the popular staple food crop in. India has largest area 40.2 million hectare followed by china and Bangladesh. Rice is primiarly a high energy or high calorie food .Rice, is primarily a high energy or high calorie food . However compares favorably who other cereals in amino – acid content . The biological value of this protein is high It is rice in Vitamin B and many other minerals with little amount of calcium It is commonly grown in almost all parts of plain sand plateau regions. Seed is protector and propagator of its kids and has paramount important in seed production. Seed production is affected by number of factors among these germination of seed play vital role , germination of seed decides the vigour health and good crop stand of the rive a little work has seed done on the effect of seed soaking under upland rainfed conditions of plateau region. Keeping these point in view an experiment entitled Effect of pre-sowing seed soaking on rice productivity under conditions was planned. The experiment was conducted in split plot desing and replicated thrice. Recommended dose of fertilizer was given in all the treatment and all due cares were taken during the period of investigation. The seed soaking (18hr water soaked) proved beneficial for getting higher percentage germination growth and yield .Maximum germination plant height number of spikelets number of filled grains number of seeds per plant 1000 – grain weight and grain yield were obtained by the use of 10 hr water soaked seeds. Minimum days to first flowering and 50% flowering were obtained by the use of 10 hr water soaked seeds. Maximum days for germination and 50% flowering were obtained when dry seeds were sown. Maximum Number of panicle (X1000/m2), Number of Spikelets (X1000/m2), number of filled grains (X1000/m2) were recorded by the rice genotype IET-15296 when 18 hr water soaked seeds were sown . Maximum percentage of filled grained was recorded by the rice genotype IET-15330 when 18 hr water soaked seed were used. Highest grain yield (451.50g/m2) was obtained by the rice genotype IET-15295 under 18 hrs water soaked seeds. The harvest index was maximum in rice genotype Birsa Gora 102(60%) when 18 hrs water soaked seeds were sown.ThesisItem Open Access Effect of Different Levels of Phosphate on Growth Parameters and Grain Yield Of Urd Bean (Vigna Mungo L.Hepper) Under Plateau Region of Chotanagpur(Birsa Agricultural University, Ranchi, 1998) Kishto Kumar; Dr.A.K.VermaThe Mango because of its great utility occupies a prominent place amongst the fruits crops of India and is acknowledged as the national fruit of our country. Bihar ranks next to U.P in area and production of mango, Since mango is a cross pollinated crop, vegetative propagations of paramount importance for this crop. Although inarching is still the chief technique of propagation in Bihar, but due to several disadvantages of this method, now-a- days the detached methods such as veneer, soft wood and stome grafting are being strongly advocated. The information available on the comparative performance of these detached methods at the nursery stage and also on the establishment in the nursery under agro-climatic conditions of chota Nagpur region and lacking. Very little work has been done to standardize the period of defoliation and storage of bud wood for this region. With a view to evaluate the different techniques of detached methods of grafting for Dashehari mango and to find the best defoliation and storage period, the present study was undertaken at Ranchi Agril. College kanke, during the monsoon season of 1991 and repeated in 1992. For this study three different sets of trials were conducted with action shoot of Dashehari mango under randomized block design. There were altogether 9 treatments in each set and were replicated thrice. There were 3 defoliation periods (6, 8, and 10 days) 3 storage period(0, 3 and 6 Days).ThesisItem Open Access Effect of Nitrogen on Grain Filling And Yield In Upland Rice(Birsa Agricultural University, Ranchi, 1996) Lakbindra Puran; A.K.VermaIt is rather difficult to give definite conclusion on the basis of one year’s experimental data. An attempt , however has been made to draw broad indications under the conditions of present experimentation. On the basis of the results obtained the following conclusion can be drawn. The variety Birsa Gora 102 gave highest yield at 45 Kg/N/ha (applied as three equal splits i.e. 1/3at sowing and 1/3 after 48 days of sowing)followed by BD 106 under upland condition of Bihar plateau.