Rice is a food crop of world-wide importance and forms the foundation of the diet of over 3 billion people, constituting over half of the World’s population. The best performing five hybrids with respect to the single plant yield and their parents were analysed for cooking quality and physico-chemical characteristics. The cross combination, ADT 43 x Anna (R) 4 with the high milling per cent of 50 had medium slender grains with KLAC of 9.55 mm. The LER is also less than 2.00 (0.58), with intermediate gelatinization temperature and amylose content. It had desirable feature of soft gel consistency.
The quest for plants with medicinal properties continues to receive attention as scientist survey plants, particularly with ethnobotanical, significance for complete range of biological activities ranges from antibiotic to anti-tumor. The anti-microbial compounds present in medicinal plants are degradable and selective in their toxicity and so they are considered as valuable ingredients for controlling plant diseases caused by virus, bacteria and fungi. The antifungal compounds of two medicinal plants viz., Lantana camara and Bougainvillea glabra was extracted by using ethyl acetate. Active spots identified by thin layer chromatography assay and were further purified using preparative HPLC. The purified compounds were subjected to chemical analysis and found to contain phenolic group of compounds. HPLC purified Lantana camara ethyl acetate extract was found to be more active against Pythium aphanidermatum than the Bougainvillea glabra extract. The compound was further analysis and confirmed by GCMS. The partially purified phenolic compounds can be used against plant pathogens. However further study in the purified compounds must be under taken to validate the results.
A line x tester analysis was carried out with seven lines and five testers of sesame genotypes in respect of ten quantitative traits for association study to assess the relationship among yield and its components for selection criteria Observations were recorded on ten traits viz days to 50% flowering, plant height, number of branches per plant, number of capsules on main stem, number of capsules on branches, number of capsules per plant, number of seeds per capsule, 1000 seed weight, oil content and single plant yield. Character association analysis revealed an intensive selection in the positive side for number of capsules on main stem, number of capsules on branches will improve the seed yield since these traits expressed significantly positive correlation with seed yield and among themselves.
The present investigation was carried out to study the response of two quality rice varieties viz., White Ponni and BPT 5204. This study focused to evaluate the genotypes for their callus induction frequency, relative growth rate of callus and regenaration capacity using Murashige and Skoog medium. Among the two varieties under investigation, the mean callus induction percentage, embryogenic callus induction percentage and relative growth rate of callus was higher in BPT 5204 when compared to White Ponni. BPT 5204 was more responsive for tissue culture than White Ponni.
