Genetic Relationship and Structure Analysis of Root Growth Angle for Improvement of Drought Avoidance in Early and Mid-Early Maturing Rice Genotypes   总被引：1，自引：0，他引：1  

Pandit Elssa  Kumar Panda Rajendra  Sahoo Auromeera  Ranjan Pani Dipti  Kumar Pradhan Sharat 《水稻科学》2020,27(2):124-132

Deeper rooting 1(Dro1) and Deeper rooting 2(Dro2) are the QTLs that contribute considerably to root growth angle assisting in deeper rooting of rice plant. In the present study, a set of 348 genotypes were shortlisted from rice germplasm based on root angle study. Screening results of the germplasm lines under drought stress identified 25 drought tolerant donor lines based on leaf rolling, leaf drying, spikelet fertility and single plant yield. A panel containing 101 genotypes was constituted based on screening results and genotyped using Dro1 and Dro2 markers. Structure software categorized the genotypes into four sub-populations with different fixation index values for root growth angle. The clustering analysis and principal coordinate analysis could differentiate the genotypes with or without deeper rooting trait. The dendrogram constructed based on the molecular screening for deep rooting QTLs showed clear distinction between the rainfed upland cultivars and irrigated genotypes. Eleven genotypes, namely Dular, Tepiboro, Surjamukhi, Bamawpyan, N22, Dinorado, Karni, Kusuma, Bowdel, Lalsankari and Laxmikajal, possessed both the QTLs, whereas 67 genotypes possessed only Dro1. The average angle of Dro positive genotypes ranged from 82.7° to 89.7°. These genotypes possessing the deeper rooting QTLs can be taken as donor lines to be used in marker-assisted breeding programs.  相似文献   

Comparative evaluation of raw and roasted soybean in lactating crossbred cows     

Sirohi SK  Walli TK  Mohanta RK 《Tropical animal health and production》2011,43(3):725-731

An experiment was conducted to evaluate the effect of roasting whole soybean in the local level on their chemical composition, nitrogen fractions, in situ degradability, and feeding performance in crossbred (Karan Swiss and Karan Fries) dairy cows. Twelve lactating crossbred cattle (369.08 ± 17.53 kg body weight) were randomly divided into two groups on the basis of milk yield (10.18 kg/day) and day of calving (89 days) in a randomized block design. Cows were fed green maize fodder and concentrate mixtures with 1 kg raw soybean as fed basis (7.6% of total diet) in the control group, where as roasted soybean replaced raw soybean in the treatment group to make both diets isonitrogenous and isocaloric. The roughage to concentrate ratio was around 55:45 in both diets. The cows were housed in individual byres and fed experimental diet for 90 days. The total dry matter intake per animal in both groups was similar. The digestibility of dry matter, organic matter, crude protein, ether extract, and neutral detergent fiber was comparable in both groups. The average milk production and fat-corrected milk yield per day was similar during the trial. Milk fat, milk protein, and solids not fat content remained unaffected and similar in both groups. All the animals maintained their body weight in both groups. Thus, rumen bypassing of protein fractions at the present method of bypassing did not have the desired level of beneficial effect in medium producing crossbred cows.  相似文献   

Comments on the manuscript “Fungal degradation of chlorpyrifos by <Emphasis Type="Italic">Acremonium</Emphasis> sp.strain (GFRC-1) isolated from a laboratory-enriched red agricultural soil”     

Ranjan Kumar Bhagobaty 《Biology and Fertility of Soils》2011,47(2):235-235

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INTERACTION EFFECT OF POTASSIUM AND SULFUR FERTILIZATION ON PRODUCTIVITY AND MINERAL NUTRITION OF SUNNHEMP     

Suprakash Saha  Monidipta Saha  Amit Ranjan Saha  Sabyasachi Mitra  Surja Kumar Sarkar  Ashesh Kumar Ghorai 《Journal of plant nutrition》2013,36(8):1191-1200

The interactive effect of potassium (K) and sulfur (S) fertilization on productivity and mineral nutrition of sunnhemp (Crotalaria juncea L.) was evaluated in a field experiment during 2008 and 2009 cropping seasons at Uttar Pradesh, India. Potassium and sulfur fertilizers increased fiber yield and nutrient uptake of sunnhemp. It was observed that an application of K and S at 40 kg ha^?1 each significantly increased the total dry matter, fiber yield, and nutrient uptake of sunnhemp. The crop yield response to the added S was greater than for K and the nutrient use efficiency was also higher at lower levels of fertilizer addition. The increased levels of K and S improved the number of nodules and crude protein content of sunnhemp leaves.  相似文献   

Evaluation of a new composting method in terms of its biodegradation pathway and assessment of compost quality,maturity and stability     

Antara Seal  Ranjan Bera  Ashis Kumar Chatterjee  Ajit Kumar Dolui 《Archives of Agronomy and Soil Science》2013,59(9):995-1012

The need for scientific composting methods for effective utilization of organic waste is increasing day by day. In this respect, a new process called the Novcom composting method is being increasingly adopted by the organic tea planters of Assam and Darjeeling (India) for large-scale composting. Study of the biodegradation process under this method and quality evaluation of the end product was carried out at Maud tea estate (Assam) during 2008–2009 and 2009–2010. Generation of high temperatures (>65°C) within the compost heap during the biodegradation process provided an indication regarding the destruction of pathogens and weed seeds in the composted material. Samples collected on day 0, 7, 14, 21 and 30 of composting, were analyzed for physicochemical properties, nutrient status, microbial population, stability and phytotoxicity parameters. The most significant finding was the high microbial population (in the order of 10¹⁶ cfu g^?1) in the final product, which was generated naturally during biodegradation. Assessment of the maturity and stability parameters of the compost indicated that biodegradation was complete in ～3 weeks. The study provided an indication of the potential of the Novcom composting method for the production of good quality, stable and mature compost, within a short period.  相似文献   

OsSUV3 transgenic rice maintains higher endogenous levels of plant hormones that mitigates adverse effects of salinity and sustains crop productivity     

Ranjan Kumar Sahoo  Mohammad Wahid Ansari  Renu Tuteja  Narendra Tuteja 《Rice》2014,7(1):17

Background

The SUV3 (suppressor of Var 3) gene encodes a DNA and RNA helicase, which is localized in the mitochondria. Plant SUV3 has not yet been characterized in detail. However, the Arabidopsis ortholog of SUV3 (AT4G14790) has been shown to be involved in embryo sac development. Previously, we have reported that rice SUV3 functions as DNA and RNA helicase and provides salinity stress tolerance by maintaining photosynthesis and antioxidant machinery. Here, we report further analysis of the transgenic OsSUV3 rice plants under salt stress.

Findings

The transgenic OsSUV3 overexpressing rice T₁ lines showed significantly higher endogenous content of plant hormones viz., gibberellic acid (GA₃), zeatin (Z) and indole-3-acetic acid (IAA) in leaf, stem and root as compared to wild-type (WT), vector control (VC) and antisense (AS) plants under salt (200 mM NaCl) stress condition. A similar trend of endogenous plant hormones profile was also reflected in the T₂ generation of OsSUV3 transgenic rice under defined parameters and stress condition.

Conclusions

In response to stress, OsSUV3 rice plants maintained plant hormone levels that regulate the expression of several stress-induced genes and reduce adverse effects of salt on plant growth and development and therefore sustains crop productivity.  相似文献   

Comparison of pharmacokinetic variables for two injectable formulations of netobimin administered to calves   总被引：1，自引：0，他引：1  

C E Lanusse  S Ranjan  R K Prichard 《American journal of veterinary research》1990,51(9):1459-1463

In a 4 x 4 crossover-design study, pharmacokinetic variables of 2 injectable formulations of netobimin (trisamine salt solution and zwitterion suspension) were compared after SC administration in calves at dosage of 12.5 mg/kg of body weight. Netobimin parent drug was rapidly absorbed, being detected between 0.25 and 12 hours after treatment, with maximal plasma drug concentration (Cmax) values of 2.20 +/- 1.03 micrograms/ml achieved at 0.75 +/- 0.19 hour (trisamine) and 1.37 +/- 0.59 micrograms/ml at 0.81 +/- 0.18 hour (zwitterion). Netobimin area under the plasma concentration-time curve (AUC) was 7.59 +/- 3.11 micrograms.h/ml (trisamine) and 6.98 +/- 1.60 micrograms.h/ml (zwitterion). Elimination half-life (t1/2 beta) was 2.59 +/- 0.63 hours (trisamine) and 3.57 +/- 1.45 hours (zwitterion). Albendazole was not detected at any time. Albendazole sulfoxide was detected from 4 hours up to 20 hours (trisamine) and from 6 hours up to 24 hours (zwitterion) after administration of the drug. The Cmax values were 0.48 +/- 0.16 micrograms/ml and 0.46 +/- 0.26 micrograms/ml for trisamine and zwitterion formulations, respectively, achieved at time to peak drug concentration (Tmax) values of 9.50 +/- 1.41 hours (trisamine) and 11.30 +/- 1.04 hours (zwitterion). Albendazole sulfoxide AUC was 3.86 +/- 1.04 micrograms.h/ml (trisamine) and 4.40 +/- 3.24 micrograms.h/ml (zwitterion); t1/2 beta was 3.05 +/- 0.75 hours (trisamine) and 3.90 +/- 1.44 hours (zwitterion). Albendazole sulfone was detected from 4 (trisamine) or 6 hours (zwitterion) to 24 hours after treatment.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   

Evidence of subclinical foot-and-mouth disease virus infection in young calves born from clinically recovered cow under natural condition     

Ranjan  Rajeev  Biswal  Jitendra K.  Subramaniam  Saravanan  Dash  Bana B.  Singh  Karam P.  Arzt  Jonathan  Rodriguez  Luis L.  Pattnaik  Bramhadev 《Tropical animal health and production》2018,50(5):1167-1170

Tropical Animal Health and Production - Foot-and-mouth disease (FMD) is a highly contagious and economically important, transboundary viral disease of cloven-hoofed animals. It is known that an...  相似文献   

Rapid diagnosis of tuberculosis in dromedary camel (Camelus dromedarius) using lateral flow assay-based kit     

Ranjan  Rakesh  Narnaware  Shirish D.  Nath  Kashi  Sawal  R. K.  Patil  N. V. 《Tropical animal health and production》2018,50(4):907-910

Accurate early antemortem diagnosis of tuberculosis in dromedary camels is difficult due to the lack of reliable diagnostic test. The present study aimed to evaluate a lateral flow assay-based kit (rapid assay kit) in tuberculosis diagnosis that employs immuno-chromatographic detection of antibodies in serum, plasma, or whole blood. In a dromedary camel herd comprising 337 animals located at Bikaner, Rajasthan, India, 50 adult weak camels (11 males and 39 females) were tested by applying a single intradermal tuberculin test (SIDT) and rapid assay kit. A total of 14 animals (2 males, 12 females) were found positive in rapid assay. In SIDT, four animals revealed a positive reaction in the neck region and seven animals in the tail base. Another male animal was found SIDT positive but negative in rapid assay; it died after 12 months. Nine rapid assay positive animals died asymptomatically in 1- to 11-month period revealing postmortem tuberculosis lesions that were confirmed by Ziehl-Neelsen staining and histopathology. No tuberculous lesion was evident in the animal found positive in SIDT alone. Results of the present study indicated that serological tests like rapid assay kit can serve as a reliable test for antemortem diagnosis of tuberculosis in dromedary camel.

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Erythrocyte Lipid Peroxides and Blood Zinc and Copper Concentrations in Acute Undifferentiated Diarrhoea in Calves     

Ranjan R  Naresh R  Patra RC  Swarup D 《Veterinary research communications》2006,30(3):249-254

Undifferentiated acute calf diarrhoea is a major concern for the dairy industry and its aetiopathogenesis remains diverse. The present study aimed to examine the role of oxidative stress through estimation of erythrocyte lipid peroxide levels and blood zinc and copper concentrations using natural cases of diarrhoea in calves aged 15–30 days old. The calves were kept under identical managemental conditions and were provided with pooled whole colostrum during the first three days and thereafter with only whole milk until they were 1 month old. Diarrhoeic (n = 11) and normal calves (n = 11) of the same age group (15–30 days old) were randomly selected from an organized dairy farm for the study. The mean blood zinc concentration (50.01±2.45 μmol/L vs 66.06±3.06 μmol/L) was significantly (p < 0.05) lower and copper concentration was significantly (p < 0.05) higher in diarrhoeic calves (12.90±0.31 μmol/L vs. 9.44±0.16 μmol/L) than in the healthy calves. The erythrocyte lipid peroxides level was higher (p < 0.05) in diarrhoeic calves (6.88±0.23 nmol malondialdehyde (MDA) per mg of haemoglobin (Hb)) than healthy calves (6.27±0.07 nmol MDA per mg Hb). From the results of the study it is concluded that oxidative stress and antioxidant minerals (zinc and copper) might play important roles in the aetiopathogenesis of bovine calf diarrhoea.  相似文献