NOPR Collection:

In vitro adventitious shoot formation from leaf cultures of Clerodendnan inerme (L) Gaertn.

2013-11-27T16:38:16Z

Title: In vitro adventitious shoot formation from leaf cultures of Clerodendnan inerme (L) Gaertn. Authors: Baburaj, S; Ravichandran, P; Selvapandian, M Abstract: In vitro adventitious shoots (about 28) of Clerodendrum inerme were regenerated from leaf segments on MS medium containing BA (4 mg/L). These shoots developed directly from the leaf explants without callusing after 5 weeks. Leaf explant when cultured in MS medium containing BA (2 mg/L) and NAA (0.5 mg/L) developed compact callus that became nodular and regenerated shoots (about 50) after 5 weeks. The in vitro developed shoots were rooted in MS medium supplemented with IAA (2 mg/L). The hardened plantlets were successfully established in the field with 90% survival. Page(s): 1274-1276

Influence of growth regulators and explant type on in vitro shoot propagation and rooting of red sandal wood (Pterocarpus santalinus L.)

2013-11-28T16:38:58Z

Title: Influence of growth regulators and explant type on in vitro shoot propagation and rooting of red sandal wood (Pterocarpus santalinus L.) Authors: Arockiasamy, S; Ignacimuthu, S; Melchias, G Abstract: In vitro shoot regeneration in Pterocarpus santalinus L. was achieved when detached cotyledons from in vitro germinated seedlings were cultured on MS medium containing NAA (0.1 mg/L), BA (1 mg/L) and kinetin (1 mg/L). The regenerated shoots rooted on 1, 4 strength MS medium with IAA (1 mg/L) and the fully developed plantlets were successfully established in the soil. Page(s): 1270-1273

Response of Java citronella (Cymbopogon winterianus Jowitt) to toxic heavy metal cadmium

2013-11-29T16:37:58Z

Title: Response of Java citronella (Cymbopogon winterianus Jowitt) to toxic heavy metal cadmium Authors: Boruah, Hari Prasanna Deka; Handique, Arun Kumar; Borah, Gobin Chandra Abstract: Cadmium at 200 mg kg^-1 soil and above concentrations was fatal as growth was inhibited ultimately leading to death of Java citronella (Cymbopogon winterianus Jowitt.). The surviving plants at 50 and 100 mg kg^-1 treatments also exhibited pronounced retardation of growth and biomass yield. There was considerable reduction in the level of essential oil in herbage and oil quality deteriorated. Cadmium accumulation profile showed that highest accumulation was in root, followed by stem, leaf sheath and leaf. Very high accumulation in root for higher doses appeared to be the reason for fatality. Page(s): 1267-1269

Racial divergence in abdominal bristles among parental races and newly evolved cytoraces of nasuta-albomicans complex of Drosophila

2013-11-29T16:39:16Z

Title: Racial divergence in abdominal bristles among parental races and newly evolved cytoraces of nasuta-albomicans complex of Drosophila Authors: Harini, B P; Ramachandra, N B Abstract: Cytoraces are the products of interracial hybridization between Drosophila nasuta nasuta and D. nasuta albomicans. These races differ from their parents in the chromosome composition, mating preference, certain fitness phenotypes and also a few morphophenotypic traits. Now, these cytoraces are passing through 330 generations. Racial divergence in the 4^th and 5^th abdominal bristles among the parental races and the newly evolved cytorace 1 and 2 is reported. The results revealed that the parental races have more number of bristles than newly evolved cytoraces. Thus, these cytoraces are evolved/evolving with reduced abdominal bristle number and better fitness. Page(s): 1263-1266