Increasing rice yield potential is essential to secure world food supply. The quantitative trait locus qTSN4 was reported to achieve yield increases by enhancing both source and sink capacity. Three greenhouse experiments and one field experiment in the Philippines were conducted to study near-isogenic lines (NILs) in two genetic backgrounds, subjected to treatments with restricted light resour...

An experiment was conducted with the objective of evaluating panicle architecture traits different genotypes rice in relation to yield during June November 2020. The randomized complete block design three replications and forty-two treatments. graphical user interface used image analysis tool Panicle Trait Phenotyping (PTRAP) record related traits. Among genotypes, highest found high yielding l...

The inheritance of resistance to white tip disease (WTDR) in rice (Oryza sativa L.) was analyzed with an artificial inoculation test in a segregating population derived from the cross between Tetep, a highly resistant variety that was identified in a previous study, and a susceptible cultivar. Three resistance-associated traits, including the number of Aphelenchoides besseyi (A. besseyi) indivi...

Wild species and derived introgression lines (ILs) are a good source of genes for improving complex traits such as heat tolerance. The effect of heat stress on 18 yield traits was studied in four treatments in two seasons, under field conditions by subjecting 37 ILs and recurrent parents Swarna and KMR3, N22 mutants, and wild type and 2 improved rice cultivars to heat stress using polycover hou...

The present experiment was carried out in twelve genotypes including IRRI introgression lines and a Japonica cultivar to analyse the genetic variability, heritability, gain. Significant differences were observed among genotypes. All traits under study recorded high phenotypic coefficient of variation (PCV) than genotypic (GCV) indicating presence environment controlling traits. But, less differ...

A total of 18 rainfed upland New Rice for Africa (NERICA) varieties were categorized as the heavy panicle and low tillering types and early heading, in compared with 32 different varieties. These chromosome components were clarified using 243 SSR markers which showed polymorphism among NERICA varieties and their parents, CG 14 (O. glaberrima Steud.) and one of the recurrent parents, WAB-56-104 ...

Abstract Panicle size and grain number are important agronomic traits influence yield in rice (Oryza sativa), but the molecular genetic mechanisms underlying panicle control remain largely unknown crops. Here we report that LARGE2 encodes a HECT-domain E3 ubiquitin ligase OsUPL2 regulates rice. The loss of function large2 mutants produce large panicles with increased number, wide grains leaves,...