http://www.erepo.iihr.ernet.in/handle/123456789/37 2013-05-15T13:15:37Z 2013-05-15T13:15:37Z M R, Dinesh R B, Tiwari http://www.erepo.iihr.ernet.in/handle/123456789/470 2012-11-23T08:57:33Z 2001-01-01T00:00:00Z

Title: Evaluation of seven exotic red-fleshed guava varieties for processing into RTS Beverage Authors: M R, Dinesh; R B, Tiwari Abstract: Seven exotic red fleshed guava varieties including the local variety (red- fleshed) were screened for making Ready- To- serve (RTS) beverage. These varieties are characterised by their acidic taste and varying pulp colour from light pink to pinkish red. The range of values for various characteristic compositions of pulp was TSS 8.0 to 10.20Brix, acidity 0.51 to 2.05%, reducing sugars 1.41 to 4.34% and ascorbic acid 146.8 to 200.00 mg/ 100g. Pulp yield was in the range of 72.1 to 84.8%. RTS beverage containing 15% pulp, 180Brix TSS and 0.3% acidity was prepared. Based on the physic-chemical composition of pulp and RTS beverage, the guava variety ‘7-12 EC 147036’ was found to be the best. The beverage samples were found acceptable after 6 months of storage at RT.

2001-01-01T00:00:00Z Dinesh, M R http://www.erepo.iihr.ernet.in/handle/123456789/270 2011-05-31T09:10:42Z 2003-01-01T00:00:00Z

Title: Genetical studies in mango(Mangifera indica L.) Authors: Dinesh, M R Abstract: Mango is highly heterozygous crop and result of genetical studies can be used for selection of parents in hybridization programme. A study in this direction was taken up at India Institute of Horticulture Research, Bangalore by carrying out half sib analysis. The study shows that non-additive variance controls the characters studies in mango. Heritability is low and the chances of hybrid vigour manifesting for the characters in the F generation are bright. Selection of progenies can be made based on fruit size i.e., medium sized fruits will have good TSS and selecting was more than the genotypic coefficient emphasizing the greater manifestation of characters and lesser influence of environment.

2003-01-01T00:00:00Z M R, Dinesh Reddy, B M C http://www.erepo.iihr.ernet.in/handle/123456789/269 2011-05-31T09:08:57Z 2001-01-01T00:00:00Z

Title: Evaluation of Psidium guajava accessions and some other Psidium species for fruit characters Authors: M R, Dinesh; Reddy, B M C Abstract: Thirty seven accessions of Psidium guajava and six Psidium species were studies four dimensions weight, volume, length, breadth, TSS, titrable acidity, skin colour and pulp colour. The variety Kamsari was found to have maximum fruit weight. The TSS was maximum in the variety Bangalore Local (12.70o Brix), however this variety has hard seeds. In most of the varieties, the skin colour was yellow and varieties like Apple Colour and Chittidar had spots on the skin. The varieties Beaumont, EC-147039, 147037, 162904, 147036,147034, G-6, Kamsari, Pati, Portugal, Red Flesh were found to have pink to red flesh colour. The evaluation of species showed that the species P. quadrangularis and P. guinees produced big sized fruits. The TSS was maximum in the species P. friendrichsthaliaum. The hybridization programme carried out has result in the isolation of one superior red fleshed variety H-21.

2001-01-01T00:00:00Z Pious, Thomas Sima, Kumari Ganiga, K Devalakere P Prakash Swarna M R, Dinesh http://www.erepo.iihr.ernet.in/handle/123456789/268 2011-05-31T09:06:43Z 2007-01-01T00:00:00Z

Title: Ubiquitous presence of fastidious endophytic bacteria in filed shoot and index- negative apparently clean shoot- tip cultures of papaya’ Authors: Pious, Thomas; Sima, Kumari; Ganiga, K; Devalakere P Prakash Swarna; M R, Dinesh Abstract: This study establishes the widespread prevalence of fastidious or viable but non- culturable endophytic bacteria in unsuspicious shoot –tip cultures of papaya (Carica papaya L.) against the norm of asepsis in vitro. A total of 150 shoot – tips (approximately 10 mm) were inoculated on Ms-based culture medium after surface sterilization of field-derived auxiliary shoots of cv. Surya during November or January(100 and 50, respectively) when 35-50% cultures showed endophytic microbial growth on culture medium. Indexing of apparently clean cultures using bacteriological media helped in detecting and removing additional 14 -17 % stocks with covert bacteria during the first two passages. The rest of the stocks stayed consistently index-negative during the first subculture cycles, but appeared positive in PCR product yielded overlapping nucleotide data signifying mixed template or the presence of diverse endophytic microorganisms. This was confirmed by light microscopy of tissue sap revealing viable bacteria in considerable number, which were detected under phase contrast or with negative staining. Planting tissue segments or applying homogenate from these stocks on diverse bacteriological media did not induce the organisms to grow in vitro. The shoot cultures displayed variation in growth and rooting potential, the onus of such variation was solely attributable to the associated microorganisms. The findings were confirmed with additional filed shoots and fresh in vitro stocks established subsequently. The observations have implications in micro propagation and all other applications involving plant cell, tissue, organ, and protoplast culture.

2007-01-01T00:00:00Z