ISA

022144 Lakkangoudar S G;Biradar S S;Rudra Naik V; Desai S A;Yashavanth K J;Sindhigeri B (NO, All India Coordinated Research on Wheat, UAS, Dharwad-580 005, Email: biradar.suma@gmail.com) : Genetic variability studies for yield, yield attributes and leaf rust resistance in F₃ population of the cross NIAW 1415 X parula in bread wheat (Triticum aestivum L.). Res Envir Life Sci 2017, 10(1), 39-42.

Information on the extent of genetic variability and heritability for important quantitative traits is a requirement to obtain a suitable plant breeding material. Present study was undertaken to evaluate fifty six F₃ lines of the cross NIAW 1415 X Parula for grain yield, its attributing traits and leaf rust resistance. To estimate the genetic parameters like GCV, PCV, h^-2, GA and GAM, the F₂ progenies were evaluated under normal as well as under artificial epiphytotic condition for all the nine quantitative characters. One of the ways in which the variability assessed is through the simplest approach of examining the variance component. The genetic variability studies in both the parents (NIAW 1415 and Parula) was found to be similar for most of the quantitative traits indicating, no much influence of rust pathogen on these traits. Whereas, the traits like SPS (Seeds Per Spike), TGW (1000 grain weight) and YP (Yield per plant) has recorded reduced level of expression with the respective values of 43.56, 35.45 (SPS), 30.25, 30.00 (TGW) and 25.45, 27.0 (YP) for respective parents indicating there is an influence of rust pathogen on yield contributing traits. Similar trend was recorded in F₃- segregating population. High GCV (Genotypic Coefficient of Variation) and PCV(Phenotypic Coefficient of Variation) with the values of 21.20, 21.75 (GCV) and 28.57, 28.80 (PCV) were recorded for the traits such as PTP and YP respectively. This suggested the greater effectiveness of selection and improvement to be expected for these characters in future breeding programme. On the contrary, in protected experiment low GCV and PCV values were recorded for the traits such as, DFF (Days to Fifty percent Flowering), DM (Days to Maturity) and PH (Plant Height) indicating, less scope for selection as they are under the influence of environment. Interestingly some of the traits like PTP 9 productive tillers per Plant), SL (Spike Length), SKS (Spikelets per Spike) and YP (Yield per Plant) have recorded reduced level of GAM (Genetic Advance over Mean) in rust condition, hence the selection is not suitable for these traits in disease condition as they are effected by rust pathogen. Traits like PTP and YP recorded higher GAM hence, selection is desirable for these traits in protected condition.

1 illus, 1 table, 16 ref

Micro-watersheds prioritization for effective soil coservation planning of sub-watershed

Lakkad A P;Nayak D;Patel G R;Shrivastava P K

022143 Lakkad A P;Nayak D;Patel G R;Shrivastava P K (College of Agril. Engg. & Technology, NAU, Dediapada-393 040, Email: larunp@nau.in) : Micro-watersheds prioritization for effective soil coservation planning of sub-watershed. Res Envir Life Sci 2017, 10(3), 275-9.

Among the major causes of soil degradation in India, water erosion is considered to be the most severe one which covers almost 68.39% of the affected area resulting into the annual soil loss of about 5.3 billion tons through erosion. In the present study an attempt has been made to measure and model the water erosion to identify priority of micro-watersheds for watershed management planning of study area using the ArcGIS interface. Sub-watershed (5D1A5c) that catches water from main stream of Dediapada region (Dist.-Narmada, Gujarat) was selected for the study purpose. The sub-watershed covers 7 micro-watersheds i. e. d, e, f, g, h, j and k. Revised Universal Soil Loss Equation (RUSLE) was used to estimate cell wise gross soil erosion of study area. The - 379 - parameters of RUSLE were estimated separately by adopting standard procedure. The erosion susceptibility map was derived using gross erosion rate and soil loss tolerance limit of the study area using standard formula. Two different approaches were adopted for prioritization of micro-watersheds. In the first approach, gross erosion values of each micro-watershed were arranged in descending order to decide the priority of micro-watersheds while in second approach, the priority of micro-watersheds was decided based on the highest area under very high priority (<62> 35 ton/ha/yr) with lowest area under safe zone (<60> 0 ton/ha/yr) for each micro-watershed. The prioritization of micro-watersheds from both the approaches gives same priority. The priorities of micro-watersheds were decided as d, g, j k, e, f and h for micro-watershed planning, execution and management program.

8 illus, 6 tables, 18 ref

Effect of nitric oxide and iron sulphate on groundnut morphology grown on a calcareous soil

Koti K K R V;Mukkund R

Effect of date of sowing and nutrient management on yield and economics of bread wheat (Triticum aestivum L.) genotypes under late sown irrigated condition

Kiran R G;Alagundagi S C

Molecular marker-based validation of blast resistance gene Pi54 and identification of potential donors in temperate high altitude rice (Oryza sativa L.)

Khan G H;Najeeb S;Bhat Z A;Padder B A;Parray G A;Wani S A;Shikari A B

Role of pheromones in farm animals

Kekan P M;Ingole S D;Sirsat S D;Barucha S V; Kharde S D;Nagvekar A S

Seasonal abundance and predatory potential of Serangium parcesetosum Sicard (Coleoptera: Coccinellidae) against whitefly, Bemisia tabaci on cotton

Kedar S C;Saini R K;Kumaranag K M

Identification of superior parental lines for seed quality and storability through GGE biplot analysis of line x tester data in grain sorghum

Kannababu N;Rakshit S;Madhusudhana R;Tonapi V A;Das I K;Raghunath K

Performance of tasar silkworm, Antheraea mylitta drury under different chawki rearing methods

Kamaraj S;Pandiaraj T;Prabhu I G;Ranjan V; Sinha A K

Estimation of combining ability for growth, yield and its components in pumpkin (Cucurbita moshcata Duch. Ex. Poir)

Kakamari G S;Jagadeesha R C

Effect of irrigation (drip/surface) on sunflower growth, seed and oil yield, nutrient uptake and water use efficiency

Kadasiddappa M M;Rao V P;Reddy K Y;Ramulu V; Devi M U;Reddy S N

Effect of nanofertilizers on growth and yield of selected cereals

Jyothi T V;Hebsur N S

022133 Jyothi T V;Hebsur N S (Soil Science and Agricultural Chemistry Dep, UAS, Dharwad-580 005, Email: veeranna.jyothi@gmail.com) : Effect of nanofertilizers on growth and yield of selected cereals. Agric Rev 2017, 38(2), 112-20.

Nanoscience coupled with nanotechnology has emerged as possible cost-cutting measure to prodigal farming and environmental clean-up operations. Nanoscale science, engineering, and technology, which is more widely known using the novel term 'nanotechnology', is an emerging multidisciplinary field that can have enormous potential impact on our society. Nanofertilizers facilitate slow and steady release of nutrients and thereby reduce the loss of nutrients and enhance the nutrient use efficiency. The full recommended rate of conventional and nanofertilizer (FRR-CF+FRR-NF) enhanced the plant height, chlorophyll content, number of reproductive tillers, panicles, and spikelets in rice. The magnitudes of increase over the FRR-CF were 3.6%, 2.72%, 9.10%, 9.10%, and 15.42%, respectively. In rice, an exposure to Zn NP (at 0, 25, 50, 75, 100 & 150 mg L^-1) caused significant changes in root and shoot length and mass (fresh and dry mass). The ZnO nanoparticles increased the shoot dry matter and leaf area indexes by 63.8% and 69.7% respectively in mineral poor soils. The effect of TiO₂ Nano particles was significant on number of corn in plant, maize dry weight and corn yield in P≤0.05 in. Mean comparison showed that the highest number of corn in plant (10.10), maize dry weight (2396.35 kg ha^-1) and corn yield (1744.13 kg ha^-1) were achieved by flowering stage. Silver nanoparticles in 25 ppm concentration have showed significant improvement in maximum leaf area and highest grain yield while 75 ppm concentration resulted in decrease in grain yield in wheat. Maximum number of grains per spike was recorded with 25 ppm followed by 50 ppm whereas maximum 100-grain - 375 - weight was obtained for 25 and 125 ppm soil applied silver nanoparticles in wheat.

^iia4 illus, 9 tables, 37 ref

Control of parasitoid invaders limiting production of the flour moth

Junior D P Da C;Peixoto M L;Zampieron S L M; Putti F F