Genetic Analysis Of Tolerance To Iron Toxicity In Rice (Oryza Sativa L.)

📄 Project Abstract

The objective of the present study was to determine genetic variability for some agronomic traits and iron toxicity, determine mode of gene action associated with tolerance to iron toxicity and the degree of association between iron toxicity, yield and yield components in rice. The study was carried out using eight (8) parents of rice which comprised of three (3) susceptible and five (5) tolerant to iron toxicity. These were crossed in a half diallel mating design and population generated 28 F1. The parents, F1 population along with two checks were evaluated during the 2017/2018 dry season at an iron toxicity spot in-situ at Edozhigi, Niger state. The experiment was laid in a randomized complete block design and replicated three times. Data were collected and analysed on grain yield, days to 50% flowering, number of tillers, number of leaves, plant height, panicle length, number of seeds per panicle, panicle exertion, number of effective tillers, 1000 grain weight, first iron toxicity ...