Correlation and path coefficient analysis were studied in a set of 52 diverse genotypes of roselle (Hibiscus sabdariffa) during kharif, 2018 at ARS Amadalavalasa for eleven important traits. Fibre yield per plant was found to be significantly and positively correlated for all the characters plant height, base diameter, mid diameter, petiole length, number of nodes per plant, green fresh weight per plant, dry stick weight per plant and fibre wood ratio; whereas days to 50% flowering showed significant negative association both at phenotypic and genotypic levels. All these yield component characters also exhibited strong positive correlation among themselves. Partitioning of correlation coefficients of various yield components upon fibre yield into direct and indirect contributions revealed that dry stick weight per plant has maximum direct effect upon fibre yield per plant followed by fibre wood ratio. Therefore, these characters may serve as potent characters for selection in crop improvement programmes for high fibre yield in roselle.
A field study was carried for two consecutive kharif and rabi seasons of 2013-14 and 2014-15 on farmer’s fields across 15 locations each year during kharif and 9 locations each year - during rabi in Srikakulam district, Andhra Pradesh. We tested five crop establishment methods viz., dry direct sowing using fertilizer-cum seed drill under irrigated conditions, drum seeding, systems of rice intensification (SRI), mechanized transplanting using rice 8 row yanmar transplanter, and manual transplanting. Study findings revealed that transplanting with rice planter emerged as high yielding method of establishment where the grain yield was higher by 9.21% over manual transplanting. Dry direct sowing was found to be highly profitable method of rice establishment by recording higher net returns Rs. 12596/ha compared to manual planting. Dry direct sowing and SRI proved as water productive rice establishment methods which took lesser water by 22.45% and 18.78% compared to manual transplanting during kharif. Whereas during rabi, drum seeding proved as profitable and water saving method of crop establishment in rice.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.