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Effect of good viticultural practices to reduce bunch compactness and berry size improvement in grapes cv. ‘Crimson Seedless’.

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Title Effect of good viticultural practices to reduce bunch compactness and berry size improvement in grapes cv. ‘Crimson Seedless’.
Not Available
 
Creator Harikanth Porika, PS Kumar, J Satisha, KK Upreti and Mohan Kumar
 
Subject viticultural, thinning, bunch compactness and Crimson Seedless
 
Description Not Available
The Grape variety, Crimson Seedless suffers from berry size and bunch compactness, which has bearing with its marketability and economic returns. The objective of this study was to evaluate various viticultural techniques, such as berry thinning (at 8-10 mm berry size), basal leaf removal, bunch covering and ethrel dip @ 500 ppm (at veraison stage) either in single or in different combinations to prevent bunch compactness and physiological loss in weight, and improve in berry size. The experiment was conducted during two consecutive seasons (2015-2017) in a vineyard located at ICAR-Indian Institute of Horticultural Research, Bengaluru, India. The prevalence of bunch compactness was evaluated considering the levels of compact ratio. The physical characteristics of bunches and the berries were also evaluated. Among the treatments, the highest mean bunch weight of 699.83 and 663.40 g, better bunch compactness ratio of 1.799 and 1.617, berry diameter of 18.31 and 19.03 mm, 50 berry weight of 230 and 274.40 g, and pulp to peel ratio of 9.246 and 9.243, and lower physiological loss in weight (PLW) of 24.82 and 15.49% during season-I and season-II, respectively were recorded under the combinations of berry thinning + 500 ppm ethrel dip + basal leaf removal. Berry thinning at 8-10 mm in diameter is efficient for reducing bunch compactness, as it resulted in a higher incidence of medium loose and lower incidence of very dense bunches with optimum PLW and higher berry size in Crimson Seedless grapes
Not Availabl. Its roots and leaves are used in a number of preparations for their anti-inflammatory, anticonvulsive, antitumor properties besides promoting vigour and stamina. Ashwagandha contains very high concentration of metabolites like steroidal lactones (Withanolides), alkaloids and fl avonoids, so it is used in more than 200 commercially ayurvedic formulations. The annual requirement of Withania sominifera in India is about 9127 MT where as the estimated production in India is only 5905 MT. This requirement can be met by mass cultivation of adventitious roots using bioreactors. Adventitious roots induced by this form are considered to be genetically uniform, true to its type that gives rise to mass production of desired pharmaceutical compound. Seeds of varieties like Jawahar Ashwagandh-20 (JA-20), Arka Ashwagandha (AA), IIHR WS-48 and IIHR WS-32 have been raised in in-vitro conditions. Adventitious roots were induced from in-vitro leaves by varying factors. Half strength MS medium yielded more roots than full strength MS medium, combination
of IAA and IBA (ranging from 0.025-0.01mg/l) were found to be ideal for adventitious root induction for each variety. Sucrose concentration (3-4%) in half strength MS media yielded more adventitious roots, with a light
intensity of 16 hours photoperiod than darkness.
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2019-05-21T08:59:00Z
2019-05-21T08:59:00Z
2018-09-19
Article
Sindhu Rangaraju, A.N. Lokesha and Chenna Reddy Aswath. 2018, Standardization of various factors for production of adventitious roots in selected varieties of Withania somnifera and estimation of total withanolides by High Performance Liquid Chromatography. Biosci. Biotech. Res. Comm. 11 (3): 451-460.
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http://krishi.icar.gov.in/jspui/handle/123456789/19768
English
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A Society of Science and Nature Publication

oai:krishi.icar.gov.in:123456789/199282019-05-29T01:06:39Zcom_123456789_108com_123456789_8col_123456789_513
IDENTI FICATION OF EST DERIVED MARKER ASSOCIATED WITH AAI_LTSS SUPERFAMILY FOR PLANT DEFENSE RESPONSE IN SOLANUM MELONGENA
REENA ROSY THOMAS AND M. K. CHANDRA PRAKASH
AAI_LTSS, Biotic stress, EST, plant defense, Solanum melongena
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Biotic stress in plants affected by pathogen attack involves physiological
changes that affects the growth and productivity. To overcome such stresses, identification of
markers for development of superior crop varieties tolerant to biotic stress is essential. Brinjal
(Solanum melongena L.) is an important vegetable crop species, also a good source of
minerals and vitamins. EST collections of Solanum melongena are having abundant repeat
motifs, most of them are hexa repeats. Mathematical algorithm based motif identifier was
used to analyze around one lakh EST sequences of S.melongena and identified potential
markers associated with AAI_LTSS superfamily, a protein family that includes alpha
amylase inhibitors, lipid transfer proteins, seed storage proteins. These protein superfamily
are known to play primary role in protecting plants from pathogen, insects, lipid transport
between membranes and nutrient storage. Nine EST sequences associated with plant defense
response that belongs to AAI_LTSS superfamily have been identified and aligned with MSA.
The alignment showed conserved marker region with repeat motif pattern that occurs several
times inside the sequence. Identification of such potential marker sequences would be useful
for plant breeders in developing biotic stress tolerant crops.
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2019-05-28T05:51:14Z
2019-05-28T05:51:14Z
2019-02-01
Journal
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2454-6348
http://krishi.icar.gov.in/jspui/handle/123456789/19928
English
Not Available;
Life Science Informatics Publications

oai:krishi.icar.gov.in:123456789/197782019-05-28T22:45:27Zcom_123456789_108com_123456789_8col_123456789_513
Horticultural Genetic Resources Conservation and Management
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P.E. Rajasekharan
Horticultural genetic resources, conservation
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2019-05-21T09:05:45Z
2019-05-21T09:05:45Z
2017-09-11
Book chapter
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http://krishi.icar.gov.in/jspui/handle/123456789/19778
English
Not Available;
NBPGR

oai:krishi.icar.gov.in:123456789/197872019-05-28T22:48:42Zcom_123456789_108com_123456789_8col_123456789_513
Phytochemical Screening for Various Secondary Metabolites, Antioxidant, and Anthelmintic Activity of Coscinium fenestratum Fruit Pulp: A New Biosource for Novel Drug Discovery
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Kuntal DAS, Raman DANG, Gokul SIVARAMAN, Rajasekharan Punathil ELLATH
Antioxidant study, anthelmintic activity, Coscinium fenestratum, extracts, phytochemical study
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Objectives: Coscinium fenestratum (Gaertn.) Colebr. (CF, Family: Menispermaceae) is an important endangered woody climber in India. CF contains
various major secondary metabolites for the treatment of various disease conditions. The present study aimed to establish the antioxidant and
anthelmintic activity of Coscinium fenestratum fruit pulp.
Materials and Methods: The dried fruit pulp was subjected to aqueous, methanol, and mixed aqueous and methanol (1:1) solvent extraction followed
by phytochemical investigations, estimations of alkaloids, phenolics, flavonoids, antioxidant potentiality (DPPH and hydrogen peroxide scavenging
methods), and anthelmintic activity tests were carried out.
Results: Preliminary phytochemical screening of CF fruit extracts revealed the presence of alkaloids phenols, flavonoids, tannins, steroids,
and resins, which are responsible for biologic properties. The combined aqueous and methanol extract resulted in significant anthelmintic and
antioxidant properties in a dose-dependent manner. The DPPH free radical scavenging assay and H2O2 assay exhibited IC50 values of 42.38±0.012
μg/mL and 46.80±0.011 μg/mL, respectively. Thereafter, the anthelmintic activity test was carried out against Pheretima posthuma and Taenia solium
with the extract at varying concentrations of 25, 50, 100 and 150 mg/mL and compared with standard albendazole (25 and 50 mg/mL) and saline
(0.9%) as a control. All the extracts exhibited concentration-dependent paralytic effect, followed by death on the test organism, but significant
activity was observed with the combined methanol and aqueous extract.
Conclusion: The study was conducted in order to find possible isolated compounds as a biosources for future novel antioxidants in food and
pharmaceutical formulations. Our findings indicate for the first time that the CF fruit pulp has therapeutic values with prominent antioxidant and
anthelmintic properties.
Key words: Antioxidant study, anthelmintic activity, Coscinium fenestratum, extracts, phytochemical study
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Date 2019-05-22T06:58:04Z
2019-05-22T06:58:04Z
2017-01-11
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/19787
 
Language English
 
Relation Not Available;
 
Publisher Not Available