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Institution

Central Tuber Crops Research Institute

FacilityThiruvananthapuram, Kerala, India
About: Central Tuber Crops Research Institute is a facility organization based out in Thiruvananthapuram, Kerala, India. It is known for research contribution in the topics: Starch & Fermentation. The organization has 475 authors who have published 587 publications receiving 10285 citations.


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Journal ArticleDOI
TL;DR: The effect of moisture content/equilibrium relative humidity of cassava chips on the population growth and damage‐causing capacity of Araecerus fasciculatus DeGeer and Rhyzopertha dominica (Fabricius) was investigated.
Abstract: The effect of moisture content/equilibrium relative humidity of cassava chips on the population growth and damage‐causing capacity of Araecerus fasciculatus DeGeer and Rhyzopertha dominica (Fabricius) was investigated. A. fasciculatus is the most common and important pest of cassava in India and other humid tropical countries. A. fasciculatus did not survive or breed in well‐dried chips equivalent to 40% r.h. Apparent weight loss caused by insect feeding and population growth increased with moisture content and was higher at 70–80% r.h. The insect did not survive when the r.h. was higher (90%) and when mould growth was profuse. R. dominica survived and multiplied even at low m.c./r.h.

3 citations

Journal ArticleDOI
TL;DR: In this paper, the rheological behavior of micellar solutions of cationic surfactant, cetyl trimethyl ammonium bromide in the presence of a salt (KBr) and a co-surfactant (n-octanol) were analyzed.
Abstract: The rheological behavior of micellar solutions of cationic surfactant, cetyl trimethyl ammonium bromide in the presence of a salt (KBr) and a co-surfactant (n-octanol) were analyzed. Shear viscosity and shear moduli were measured as a function of concentrations of the co-surfactant and additive. When these concentrations attained a certain critical threshold value, the micellar solution was found to exhibit a nonlinear viscoelastic behavior. It is due to the formation of supramolecular structures, which has been described by the Maxwell model of a viscoelastic fluid typical of worm-like micelles. The rheological behavior was also analyzed using Carreau and Carreau–Gahleitner models which were found to be in good agreement with the experimental results.

3 citations

Journal ArticleDOI
TL;DR: Genotypes with purple colour flowers and fruits had greater eggplant fruit and shoot borer (EFSB) infestation, and the long slender fruit shape and clustered fruiting habit promoted the EFSB infestation.
Abstract: The association of the fruit and shoot borer (Leucinodes orbonalis Guen) Infestation in eggplant with morphological, yield, quality and weather variables was studied at Bidhan Chandra Krishi Viswavidyalaya, West Bengal, India, during the spring–summer (February–June) of 2012–2013 and 2013–2014 and autumn–winter (September–March) of 2013–2014 and 2014–2015. Earlier infestation occurred on the plants during the spring–summer, while late infestation of the pest was observed during the autumn–winter. The Number of infested shoots per plant, per cent shoot infestation, number of infested fruits per plant, per cent fruit infestation and larvae per fruit were greater during the spring–summer months than during the autumn–winter months. The fruit infestation had a significant negative association with fruit yield per plant. The number of infested fruits per plant was positively and significantly associated with primary branches per plant, fruits per plant and fruit yield per plant. A significant negative correlation was observed between spines on stem and number of infested shoots per plant, and the correlation of number of infested fruits per plant with the spines on the stem, petiole and pigmentation on leaf lamina was positively significant. Genotypes with purple colour flowers and fruits had greater eggplant fruit and shoot borer (EFSB) infestation. The long slender fruit shape and clustered fruiting habit promoted the EFSB infestation. The TSS and anthocyanin in peel were found as the phagostimulants, while the high total phenols content and 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging capacity were the feeding deterrents. The per cent of infested fruits per plant exhibited a positive correlation with maximum (Tmax), average (Tavg) and day temperatures. Larvae per fruit had a positive association with maximum temperature (Tmax), day temperature and helio-thermal units.

3 citations

Journal Article
TL;DR: The progenies OW4, OW27, OW37, OW43, OW126 and OW169 recorded the highest dry matter, β-carotene as well as high starch content and the most predominant tuber flesh colour observed was light orange, orange, deep orange and deep orange colour respectively.
Abstract: Sweet potato ( Ipomoea batatas (L.) Lam.) is one of the valuable crops producing the highest root dry matter content for human consumption. Sweet potato breeding is very challenging due to its genetic complexity. The tuber flesh colour variation ranges from white, cream, yellow, orange and purple. High dry matter content, carotene and anthocyanins are the main tuber characters preferred by consumers and processors. In this study, a population consisting 200 F 1 progenies from a cross of S-1 (white fleshed) and ST-14 (orange fleshed) were analyzed for dry matter, starch and β-carotene content. The dry matter content of the progenies ranged from 18.58% (OW48) to 45.7% (OW15) and 30 per cent of the progenies showed dry matter content of 35 - 40%. The starch content accounted variations from 9.80 to 32.7 per cent and only 9 per cent showed starch content above 30%. Among the progenies, the β-carotene ranged from 0.02 – 11.03 mg/100g FW. The progenies OW4, OW27, OW37, OW43, OW126 and OW169 recorded the highest dry matter, β-carotene as well as high starch content. The tuber flesh colour variation in the progenies was done phenotypically based on 1 - 6 score. Among the progenies orange flesh colour was predominant and from the OFSP progenies, the most predominant tuber flesh colour observed was light orange (28%), orange (22%) and deep orange (4%) colour respectively.

3 citations

Journal Article
TL;DR: Petiole and corm explants based propagation for cultivated species of Amorphophallus paeoniifolius var.
Abstract: In vitro propagation method using petiole and corm explants for the cultivated species of Amorphophallus paeoniifolius var. campanulatus (Decne) Sivad. cv. Gajendra is reported. The petiole slices cultured on Murashige and Skoog (MS) medium containing 6-Benzyladenine (BA) and 1-Naphthaleneacetic acid (NAA) produced callus within four weeks of culture. Continuous maintenance of original explant along with developed callus in respective medium showed initiation of adventitious shoot buds, roots and protocorm like bodies (PLB) or corm like structures (CLS). The CLS subsequently developed into complete plants. MS medium supplemented with NAA (2.5 μM) in combination with BA (5.0 μM) was identified as the best medium for CLS induction. Histological studies of the callus revealed three developmental stages. Complete plantlets were obtained from CLS within 16-24 weeks, by maintaining the culture continuously on the same combination of initiation medium. The culturing of apical bud explants of corms on BA or Thidiazuron (TDZ) in combination with NAA resulted in the proliferation of adventitious buds. But further development was arrested. The response of corm explants to callus induction and CLS formation was very slow as compared to petiole explants. The corm explant based propagation recorded less number of CLS compared to petiole based method. Thus, plant development through CLS from petiole explants can be adopted for the large scale production of plantlets.

3 citations


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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20231
20225
202129
202032
201927
201823