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Publisher: Indian Council of Agricultural Research   (Total: 6 journals)   [Sort by number of followers]

Showing 1 - 6 of 6 Journals sorted alphabetically
Fishery Technology     Open Access   (Followers: 2)
Indian Horticulture     Full-text available via subscription   (Followers: 10)
Indian J. of Agricultural Sciences     Open Access   (Followers: 14, SJR: 0.302, h-index: 0)
Indian J. of Animal Sciences     Open Access   (Followers: 6, SJR: 0.242, h-index: 0)
Indian J. of Fisheries     Open Access   (Followers: 2, SJR: 0.172, h-index: 0)
Indian Phytopathology     Open Access   (Followers: 2)
Journal Cover
Indian Phytopathology
Number of Followers: 2  

  This is an Open Access Journal Open Access journal
ISSN (Print) 0367-973X - ISSN (Online) 2248-9800
Published by Indian Council of Agricultural Research Homepage  [6 journals]
  • About the Journal

    • Authors: Editor IPS
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Integrated crop disease management in southern Rajasthan: ecofriendly
           practices in tune with biocontrol

      Pages: 407 - 412
      Abstract: The goal of integrated disease management is to reduce the economic and aesthetic damage caused by plant diseases. With the increasing environmental awareness, the focus has been shifted towards the search for viable alternatives of disease control methods. The various disease management practices like soil treatment with antagonistic fungus, organic manure, cakes; seed treatment with fungicides, Trichoderma spp., antagonistic bacteria like Bacillus subtilis, B. amyloliquefaciens and P. fluorescens, plant extracts; delivery methods like seed treatments, seedling root dip and spray of antagonistic bacteria and microclimatic manipulation to prevent disease causing spores, etc. were experimentally practiced. In case of tomato crop affected by early blight caused by Alternaria solani, Tomato-marigold intercropping-plastic mulching treatment (T+M+P) showed significant reduction in disease intensity by 35.4-38.9% as compared to tomato crop alone. Management practice for rhizome rot in ginger, caused by Pythium aphanidermatum, Fusarium spp and Rhizoctonia solani complex was studied and farmers were advised to do hot water treatment (50°C for 30 min) + seed treatment with Trichoderma viride + soil application with neem cake followed by drenching with suspension of neem oil or ridomil MZ. The role of weather parameters on incidence of parawilt and its management was assessed. In another study, we assessed the synergism in consortia application of Trichoderma harzianum and Pseudomonas fluorescens against rice blast and bacterial leaf blight of rice. Garlic extract (10%) against leaf spot diseases in groundnut was found very effective and at the same time stem and root rot complex in groundnut and wet root rot were also managed by application of T. harzianum Th3. The success of these ecofriendly measures essentially emphasised our research needs to reassess the ecofriendly system of plant disease management.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Detection of Xanthomonas campestris pv. campestris in imported germplasm
           of cabbage during post entry quarantine

      Pages: 413 - 417
      Abstract: Black rot is a devastating bacterial disease causing considerable yield losses in cabbage. Xanthomonas campestris pv. campestris (Xcc) is a regulated non-quarantine pest for India and detection of Xcc in imported germplasm is very important to prevent the introduction and spread of pathogen in the country. A total of 175 germplasm accessions of cabbage were imported by Syngenta India Pvt. Ltd. from China and grown in post entry quarantine (PEQ) growing area of Syngenta Farm, Karnal. During PEQ inspection of crop, 35 accessions showed typical black rot symptoms. Out of 35 accessions, eight representative accessions were used and found to be positive for Xcc based on mophological, cultural and biochemical assay. Xcc specific primers gave a specific band of 769 base pairs, which confirmed the presence of Xcc in the infected samples. 16S rRNA sequencing of one isolate (XccP1) was used to further confirm the presence of the pathogen. 16S rRNA sequence showed 100% sequence similarity with Xcc strains already deposited in NCBI database. Black rot infected germplasm accessions grown in PEQ area were up-rooted and incinerated to prevent further spread of disease.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Virulence and genetic diversity of Puccinia striiformis f. sp. tritici
           isolates in Punjab, India

      Pages: 418 - 425
      Abstract: Virulence diversity was determined among 16 isolates of Puccinia striiformis f. sp. tritici was analyzed by inoculating isolates collected from diverse areas of Punjab on differential lines carrying known resistance genes. Pathotypes 78S84, 46S119 and 110S119 obtained from IIWBR, Regional Station, Flowerdale, Shimla were also included as check. All the Pst isolates were virulent on lines carrying genes Yr2, Yr3, Yr4, Yr6, Yr7, Yr8, Yr9 and were avirulent on genes Yr1, Yr5 and Yr10. Variation for virulence was recorded among isolates on lines having genes YrSD, YrSU and Yr9+. Genetic diversity of the isolates was studied using EST-derived SSR markers. Cluster analysis based on UPGMA algorithm and principal coordinate analysis (PCoA) classified these 19 isolates into three separate clusters which indicated genetic diversity among the isolates from Punjab.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Implication of fungicide application regimes and post spray irrigation on
           late leaf spot and its residual impact on stem rot of groundnut

      Pages: 426 - 431
      Abstract: A field experiment was conducted during rabi season of 2015-16 and 2016-17 to study the efficacy of different protectant and systemic fungicides in different application regimes on late leaf spot disease of groundnut and to assess the impact of post spray irrigation timing on the severity of late leaf spot and as well as management of stem rot disease through deposition of foliar applied fungicides. Three sprays of chlorothalonil @ 2g/l (1th, 3rd, 5th) alternated with three sprays of pyraclostrobin @ 1g/l at 2nd, 4th and 6th spray (T8) reduced the highest disease severity (40.74%) as compared to seven spraying of chlorothalonil (T2) at 10 days interval (60.00%). The AUDPC values were significantly different among various treatments. Highest yield (28.89 q/ha) was also recorded in T8. The number of late leaf spot lesion decreased with the increase in gap between spraying and irrigation time. Irrigation after 96 h of fungicide spray caused only 2.02 leaf spot lesion per leaflet and highest pod colonization of 43.63% due to stem rot. Negative correlation was found between pod colonization and number of leaf spot lesion.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Identification of resistance sources against post flowering stalk rot in

      Pages: 432 - 439
      Abstract: Post-flowering stalk rot (PFSR) complex caused by Fusarium verticillioides (Sacc.) and Macrophomina phaseolina (Tassi) Goid, is among the important constraints that limits the productivity of maize (Zea mays L.). The absence of high levels of stable resistant sources to the pathogens has necessitated the continued search and identification of new sources of resistance. The principal goal of this work was once to identify new sources of resistance to PFSR and validate their stability across multi-environments by multi-year testing. A set of 80 elite inbred lines screened in the field against PFSR for three consecutive years at four hotspots in India (Hyderabad, Ludhiana, New Delhi and Udaipur) under artificially created disease epiphytotics. The scores on the scale of 1 to 9 based on the disease reaction were recorded by splitting the stems of each plant. Significant (p=<0.05) interactions of genotype, location and genotype x locations interaction were observed for PFSR resistance. Out of 80 elite inbreds, only 12 inbreds (PFSR/51016-1, CM144, HKI 193-1, PFSR-R2, PFSR-R9, JCY2-1-2-1-1B-1-2-3-1-1, CM117-3-4-1-2-5-2, 42048-2-2-1-1-1-2, JCY3-7-1-2-2-1-3-1-1-2-7-1-1-1, JCY2-7-1-2-1-B-1-2-1-1, LM13 and CM117-3-4-1-2-2-3) had mean disease incidence ≤ 3.0 on the 1-9 scale and the reactions were consistent across the environments. Thus, the identified 12 stable disease resistance sources could be used for developing promising maize hybrids with inbuilt resistance to PFSR disease for different maize agroecologies in India.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Influence of weather parameters, nitrogen and potassium levels on foliar
           blight severity of barley under three different sowing dates

      Pages: 440 - 445
      Abstract: A field experiment was conducted to assess influence of ten weather parameters (maximum temperature, minimum temperature, maximum relative humidity, minimum relative humidity, wind velocity, bright sunshine hour, evaporation, total rainfall, soil temperature and vapour pressure) and three different levels of N (40,60,80 kg ha-1) and K (20, 40,60 kg ha-1) on the foliar blight severity of barley under three different dates of sowing (early: 30th Oct., timely: 15th Nov. and late: 15th Dec.). The experiment was conducted in Gangetic alluvial soil of West Bengal during rabi season at Bidhan Chandra Krishi Viswavidyalaya, Kalyani, Nadia in three consecutive years (2010-11, 2011-12 and 2012-13). Results showed minimum disease severity in high N and K combinations (N80 K60) irrespective of other treatment combinations in all the three dates of sowing. Whereas, late sown crop shows maximum disease severity irrespective of different N and K combinations. Timely and early sown crop recorded minimum foliar blight severity and maximum grain yield under maximum N and K combinations. Among the ten meteorological factors, maximum temperature, minimum temperature, minimum relative humidity, wind velocity, bright sunshine hour, evaporation were the influential to express disease severity under three different dates of sowing in different N and K combinations. Growth functions of disease severity were developed and based on correlation co-efficient (r) value and among the two growth functions (Logistic and Gompertz) Gompertz was found to be fit better for linearising the disease severity in comparison to Logistic growth model.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Morphological and molecular variability of Podosphaera pannosa causing
           rose powdery mildew in Himachal Pradesh, India

      Pages: 446 - 451
      Abstract: Rose powdery mildew caused by Podosphaera pannosa (Wallr.) de Bary is one of the most serious and devastating diseases of roses grown worldwide including Himachal Pradesh in natural as well as protected cultivation. Different isolates of six districts were morphologically distinguished from one another with respect of size of mycelium, conidia and conidiophores which ranged between 4.0 to 4.8, 22.8 × 12.4 and 72.0 to 78.0 μm, respectively. Molecular characterization of ten isolated from six districts were studied with seven RAPD markers. The dendrogram revealed similarity index among ten fungal isolates ranged between 19 to 73 per cent with an average of 46 per cent. Maximum similarity of 73 per cent was observed between isolate-5 and isolates-8 of district Mandi Himachal Pradesh. Least similar was isolate-7 which had 19 per cent similarity with other isolates.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Identification of secondary metabolites produced by fluorescent
           Pseudomonads for controlling fungal pathogens of apple

      Pages: 452 - 456
      Abstract: Antibiosis is often implicated as an important mechanism of biological control and can be used for the suppression of many phytopathogens. Fluorescent Pseudomonas species viz., P. putida, P. fluorescens and P. aeruginosa isolated from apple rhizosphere were tested for their antifungal activity against Dematophora necatrix, Fusarium oxysporum, Phytophthora cactorum and Pythium ultimum. P. putida and P. aeruginosa inhibited the mycelia growth of all the four pathogens in dual culture tests (8.3-19.3 %I) while P. fluorescens inhibited growth of three pathogens viz., D. necatrix, F. oxysporum and P. ultimum (8.5-16.6 %I). In the present study three antifungal metabolites viz., phenazine, pyrrolnitrin and 2,4-diacetylphloroglucinol produced by P. putida, P. fluorescens and P. aeruginosa were isolated from apple rhizosphere using thin layer chromatography (TLC). The Rf value obtained by the ethyl acetate extracted metabolite of all the three Pseudomonas species ranged from 0.6 to 0.82 which is in accordance to the spot showed by standards. These extracted compounds were re-tested for antifungal activity against P. ultimum which showed inhibition in the range of 15.7 to 28.9 %. The results indicated that fluorescent Pseudomonas species used in this study produced a combination of diverse antifungal compounds and provided resistance against a broad spectrum of pathogens.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Crop-specific growth promoting effect of native Trichoderma species

      Pages: 457 - 462
      Abstract: The present study was conducted to explore the occurrence of crop specificity in the growth promoting effect of rhizosphere and rhizoplane resident Trichoderma spp. The isolates from rhizosphere and rhizoplane of healthy wheat, rice and chickpea plants collected from the diseased fields were evaluated for their growth promoting potential in vitro and in glasshouse. The isolates were tested by inoculation in their native crops and by cross-inoculation in other two crops as well. Results revealed that Trichoderma isolates, namely, TRS-R8 (rice), TRP-W8 (wheat) and TRP-C4 (chickpea), exhibited growth promoting effect in all the crops used in the study but performed significantly better in their native crops, measured as seedling vigour index (SVI) and plant vigour index (PVI) as compared to other isolates, standard check (PBAT-1, i.e. strain Th-14) and control. The SVI and PVI for the above isolates were 4115 and 6204, 3865 and 9919, and 5303 and 5212, respectively as compared to 3342 to 4402 and 4863 to 8770 for the standard check. The finally selected promising isolates (TRS-R8, TRPW8 and TRP-C4) were identified as Trichoderma asperellum (=T. viride) by using BiOLOG microstation system.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Bioactivity of various ethanolic plant extracts against Pectobacterium
           carotovorum subsp. carotovorum causing soft rot of potato tubers

    • Authors: K.A. BHAT*; H.S. VISWANATH, N.A. BHAT T.A. WANI
      Pages: 463 - 470
      Abstract: Bacterial soft rot of potato caused by Pectobacterium carotovorum subsp. carotovorum (Pcc) is the most destructive disease worldwide mainly during storage. The pathogen has a wide host range affecting a number of vegetable species. Use of various chemicals and antibiotics has been reported previously against this disease with variable degrees of success, besides, excessive use of antibiotics and chemicals causes various health hazards and also leads to the development of resistance to various other human pathogenic bacteria. In the present study various ethanolic plant extracts were evaluated against Pcc (syn. Erwinia carotovora subsp. carotovora) in-vitro by both disc and Agar well diffusion method. Among them seed extract of Datura stramonium gave highest inhibition zone of 26mm (agar well method) followed by leaf extract of Urtica dioica with 25.33mm. Other plant extracts with their decreasing order of efficacy were Datura stramonium (leaves), Trigonella foenumgraecum (seeds), Syzygium aromaticum (cloves), Salix alba (leaves), Hibiscus rosa-sinesis (leaves), Eucalyptus sp. (leaves), Azadirachta indica (leaves), Conyza canadensis (leaves), Cupressus torulosa (leaves), Morus alba (leaves), Ficuscarica (leaves), Polygonum hydropiper (leaves) and Juglans regia (leaves). Extracts which were found effective under in-vitro conditions were further evaluated on potato tubers. Among them, seed extract of Datura stramonium showed highest control (18.4% disease severity), when applied 12 hours prior to the inoculation of the pathogen and 20%, when applied simultaneously with the inoculation of the pathogen followed by Urtica dioica (leaves) with severity of 20.8% when applied 12 hours prior and 21.6% when applied simultaneously with the pathogen inoculation up to 6 days of storage as against 84.8% in case of inoculated control.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Enhancing sporulation and determination of virulence of Alternaria solani
           isolates infecting tomato

      Pages: 471 - 477
      Abstract: In order to study the effect of media, incubation condition and calcium carbonate (CaCO3) amendment on mycelial growth and sporulation in Alternaria solani, 13 different media were examined under different incubation conditions. Out of these, potato dextrose agar, phytone agar and Czapeck’s Dox agar supported maximum mycelial growth at 14 days after incubation at 25±1°C. Incubation condition T2 (One week continuous fluorescent light at 25±1°C followed by one week period dark at 21±1°C) supported sporulation in all isolates of A. solani. Moreover, pearl millet-CaCO3 agar media supported sporulation in all A. solani isolates and found to be the best medium supporting sporulation in A. solani. However, all the CaCO3 supplemented media (HPDA + CaCO3, CaCO3 agar and pearl millet - CaCO3) supported sporulation in A. solani. We further grew a random isolate As-4 under two growth condition viz., (i) subcultured on pearl millet + CaCO3 media and incubated under T2 incubation condition-denoted as isolate As-P and (ii) subcultured on PDA and incubated for 14 days under alternate light and dark condition at 25°C-designated as isolate As-Q. Effect of these growth conditions on virulence of A. solani were evaluated by inoculating both the isolate As-P and As-Q on different tomato germplasm/cultivars under glasshouse condition. Disease severity recorded on tomato germplasm indicated that EC-519795 and Pant bahar were highly susceptible and moderately susceptible to As-P and As-Q respectively. Germplasm Shalimar 2, Palam Pink and Arka Saurabh showed susceptible reaction against As-P while moderately susceptible reaction against As-Q. Disease reaction shown by Roma, Arka Vikas, EC-519770, Palam Pride and Arka Samrat appeared same against both the isolates. Results of glasshouse experiment indicated that A.solani isolate As-P, grown on pearl+CaCO3 under T2 incubation condition appeared more virulence than isolate As-Q, grown on PDA.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Occurrence of Groundnut bud necrosis virus on potato in North Western
           hills of India

      Pages: 478 - 482
      Abstract: Groundnut bud necrosis virus (GBNV) is a serious problem in many crops including potato where it causes potato stem necrosis disease. During a field visit in Shimla, potato plants showing clear symptoms of concentric necrotic rings along with necrosis on the stem were observed. The virus was sap inoculated onto cowpea followed by back inoculation on potato plants in insect-proof cages under glasshouse conditions. Characteristic chlorotic spots which later turned into necrotic local lesions were recorded on cowpea and necrotic spots on potato leaves. Samples were processed for RT-PCR based detection, wherein an amplicon of expected size i.e., 560 bp was visible indicating the presence of suspected GBNV in the field collected potato leaf samples and also in sap inoculated cowpea and back inoculated potato plants as well. Insect vector thrips were also examined by print capture RT-PCR based detection and found viruliferous i.e., carrying GBNV. The other host like tomato was also examined for the presence of GBNV and the RT-PCR assay revealed the presence of GBNV in tomato, serving as an important reservoir of inoculum in North western (NW) hills of India. It was also found that the virus under study was present in the majority of the potato growing areas. Hence, the above observations suggest that GBNV started appearing on potato, especially in the NW hills of India despite unfavourable conditions.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Screening of tea cultivars tolerant to branch canker disease using
           histopathological studies

      Pages: 483 - 485
      Abstract: A glass house experiment was carried out for screening tea cultivars against Macrophoma theicola causing canker. One year old nursery plants viz. TRF-1, UPASI-3, Yabukita, UPASI-6, TRF-2, CR-6017, UPASI-9, UPASI-17, UPASI-26, TRF-4 and TRI- 2025 were selected. This study revealed that TRF-1 (19.67±1.20) and UPASI-3 (21.00±1.53) showed more number of pycnidiospores productions and bigger size of canker. The lesion size was bigger in clones UPASI-3 (2.57±0.09) and TRF-1 (2.03±0.09) followed by Yabukita. These clones were categorized as highly susceptible. In CR-6017 (3.00±0.58), TRF-2 (1.67±0.67) and UPASI-6 (1.33±0.33) noticed less number of spore production in the epidermis layer of cell. The canker size was also recorded small in size. The tolerant clones of UPASI-9, UPAS-17, UPASI-26, TRF-4 and TRI-2025 were characterized by the absence of spore formation and below 1.0 cm of canker size. These clones have been identified as tolerant varieties through histopathological studies and can be recommended for planting disease prone areas.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Detection of 16Sr XI group of phytoplasma in non-symptomatic sugarcane
           cultivars in Eastern Uttar Pradesh, India

      Pages: 486 - 488
      Abstract: Twenty six non-symptomatic leaf samples from six different sugarcane varieties (CoS 07250, CoS 96268, CoS 91269, CoSe 01424, CoS 08272, CoS 08279) grown at Sugarcane Research Institute farm at Shahjahanpur were analyzed for phytoplasma presence by using P1/P6 and R16F2n/R2 primer pairs. The amplification product of 1.2 kb was obtained in 17 out of the 26 non-symptomatic leaf samples in nested PCR assays. The amplified products from 17 positive samples were directly sequenced, aligned and analyzed using BLASTn. The obtained 16SrRNA gene sequences of all the 17 nonsymptomatic sugarcane phytoplasma isolates were found identical (99-100%) among themselves and showed 99% sequence identity to member strains of a 16SrXI group of phytoplasma. The information of phytoplasma association with nonsymptomatic sugarcane varieties at early stage is important and needs immediate attention because at crop maturity the disease may become serious and responsible for major losses to yield and sugar recovery.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Pathogenicity of Sclerotium spp. on common weeds in Meghalaya, India

      Pages: 489 - 492
      Abstract: Sclerotium spp. are the major soil borne plant pathogens causing important plant diseases throughout the world. Two isolates SL 1 (Sclerotium rolfsii) and SU (S. delphinii) were used in pathogenicity test. Forty six common weeds (detached leaf and stem) were collected and used in pathogenicity test. Isolate SL1 (S. rolfsii) was pathogenic on both leaf and stem of all the common weeds except stem of Spilanthes paniculata. Isolate SU (S. delphinii) was pathogenic on both leaf and stem of all the common weeds. Incubation period on most of the common weeds was 1- 3 days except 6 days on Ageratum houstonianum and 4 days on Alternanthera philoxeroides, A. sessilis and Ischaemum rugosum with isolate SL1. Minimum days for sclerotia formation of SL1 isolate was 5 days on Emilia sonchifolia, maximum sclerotia production (38 nos.) was observed on Sonchus aspera. Incubation period on all the common weeds was 1- 3 days with SU isolate. Minimum days for sclerotia formation of SU isolate was 5 days on E. sonchifolia, Mikania micrantha and Urena lobata, maximum sclerotia production (46 nos.) was observed on Crassocephalum crepidioides. The weed A. sessilis was susceptible and U. lobata was most susceptible to isolate SL1 based on AUDPC. The weed A. houstonianum was susceptible and Commelina benghalensis was most susceptible to isolate SU.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Cultural characterization of Colletotrichum gloeosporioides causing
           anthracnose of pomegranate

      Pages: 493 - 495
      Abstract: Pomegranate is an important commercial fruit grown worldwide. The productivity of pomegranate is hampered by different diseases, among them anthracnose is one of the important disease caused by Colletotrichum gloeosporioides. Therefore, for better understanding of the nature of the pathogen cultural studies carried out. In cultural studies on different solid media, maximum radial growth of the fungus (87.5 mm) was recorded on malt extract agar, while sporulation was excellent in the case of malt extract agar which was at par with oat meal agar and potato dextrose agar medium. Colony growth varies from flat to fluffy with regular to irregular margin and pigmentation varies from white or yellow or orange. In growth phase study the maximum dry mycelial weight of C. gloeosporioides was observed on 12th days of incubation on potato dextrose broth (451.9 mg).
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Powdery mildew of Populus deltoids under temperate agro-climatic
           conditions of Kashmir, India

      Pages: 496 - 497
      Abstract: During August 2015 and 2016, white powdery colonies were found on the lower surface of the poplar (Populus deltoides) leaves in Kashmir province, India. White powdery patches were observed embedded with scattered, black fruiting bodies late in the growing season. The disease caused premature defoliation. The fungus associated with the white colonies was identified as Phyllactinia guttata (Wallr.) Lev. by morphological characterization. This is the first report of Phyllactinia guttata causing powdery mildew disease on Populus deltoides from Jammu and Kashmir, India.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Rust resistance in Mucuna pruiens accessions

      Pages: 498 - 499
      Abstract: Mucuna is considered to be an important source of chemical which is useful in Parkinson’s disease and other neurological disorders. Mucuna accessions collected from various agroecological zones were screened for rust resistance at ICAR Research Complex for NEH region in Meghalaya. Only three accessions viz. WBN 3, WBN 6 and NGL 25 were identified as highly resistant. Seven accessions were found to be resistant and nineteen accessions were found to be moderately resistant. These accessions can be used in future breeding programs of this important crop.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • Identification of resistant sources and management of rice blast through

      Pages: 500 - 502
      Abstract: Surveys conducted during Kharif 2014 and 2015 in major Basmati rice growing areas of Haryana revealed that the neck blast (Pyricularia grisea) incidence ranged from traces to 20% in commercially grown Basmati varieties. The average disease incidence was highest in Basmati CSR 30 (1.20-2.12%) followed by Pusa Basmati 1121 (1.09-1.60%) while it was the lowest (traces) in Pusa Basmati 1509. Out of 88 scented genotypes, five genotypes viz. HKR 08-425, HKR 10-579, HKR 11-509, PAB 21-663 and Pusa 1485-06-8-10-5-15-11 showed consistent resistance to leaf blast under natural epiphytotic conditions of uniform blast nursery during kharif seasons 2014 and 2015. Amongst fungicides evaluated against neck blast, combination of tricyclazole 45% + hexaconazole 10% WG @ 1.0 g/l was found to be the most effective and statistically at par with standard fungicide tricyclazole @ 0.6 g/l in reducing the neck blast incidence and enhanced grain yield of paddy variety, Basmati CSR 30 followed by combination of tricyclazole 18% + mancozeb 62% @ 2.5 g/l.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • A.P. Misra Memorial Lifetime Achievement Award (2015: A.N. Mukhopadhyay)

    • Authors: Editor IPS
      First page: 503
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • A.P. Misra Memorial Lifetime Achievement Award (2016: B.B. Nagaich)

    • Authors: Editor IPS
      First page: 504
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
  • NEWS

    • Authors: Editor IPS
      First page: 505
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)

    • Authors: Editor IPS
      First page: 506
      Abstract: Plant Viruses, Diseases and Their Management, ISBN: 978-93-84588-81-6, Author: Dr. Kajal Kumar Biswas, Principal Scientist, Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi by
      Publisher: IK International, N Delhi, 2017, 632 pp.
      PubDate: 2018-03-14
      Issue No: Vol. 70, No. 4 (2018)
School of Mathematical and Computer Sciences
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