Phenotypic Screening of Drought-Tolerant Lines for Brown Planthopper, Blast and Phytic Acid Content Assay of Rice (Oryza sativa L.)

Advanced drought tolerant lines were analysed for blast disease, brown planthopper (BPH), and phytic acid content. Thirsty lines of BC2F4 derived from OMCS2000/ IR75499-73-1 were used to screen for BPH and blast resistance. Three good resistant lines were screened against blast (45, 54, and 310) under greenhouse condition. As eight lines were identified to be resistant to BPH. The results further reveal that BC2F4-45 was the best line resistant to both BPH and blast disease. These lines will be useful in reducing grain phytic acid and improving the nutritional value of rice grain. Based on an assay for high phosphate germination stage of rice, the lowest content was found in the I5 variety (line 45). Hence, this line provides the urgent objective for breeders in cultivars of these crops to genetically enhance a healthy and functional diet. These characters will then need to be incorporated into high yield under drought stress with others such as disease and insect resistance

X Ray investigation of high oriented (1-x)PbMg1/3Nb2/3O3-(x)PbTiO3

Textured Tape Cast Ceramics were prepared by homo epitaxial template grain growth from (1-x)PbMg1/3Nb2/3O3-(x)PbTiO3 (PMN-PT) particles and cubic templates. The texture fraction of (0 0 1) oriented ceramics was estimated by the Lotgering method at RT, in the ferroelectric phase, and above T-c in the cubic phase. Textured Tape Cast Ceramics display quasi complete (0 0 1) texture (f= 0.99). The (0 1 1) pole figure reveals (0 0 1) fibre texture and small orientation distribution

Phase diagram of high T-c Pb(In1/2Nb1/2)O-3-PbTiO3 ceramics

Dense(1-x)Pb(In1/2Nb1/2)O-3-xPbTiO(3) (PIN-PT) ceramics were synthesised by hot forging and thermal grain growth. (1-x)PIN-xPT phase diagram was investigated by X-ray diffraction and dielectric measurements. The morphotropic phase boundary zone was found to be between a rhombohedral phase region for low PT contents and a tetragonal phase region for high PT contents, i.e. in the 0.34-0.39x range. A mixture of tetragonal and probably monoclinic phases was observed for x = 0.37 at room temperature