The erect panicle model super-rice can rationally transform the solar energy into accumulated organic matter (biomass) and increase grain yield. The phenotype of erect panicle architecture controlled by DENSE AND ERECT PANICLE 1 (DEP1) has been used in rice breeding for nearly a century owing to its high-yield, lodging tolerance with strong stem, reasonable population structure and high nitroge...

Soil phosphorus (P) deficiency is one of the major challenges for rice cultivation. The present study was carried out under low soil P condition (available P, < 2 kg ha-1) to genetic variability, correlation, path and principal component analysis (PCA) in a set 40 introgression lines derived from Samba Mahsuri (Oryza sativa ssp. indica) × Oryza rufipogon. High genotypic coefficient variation...

A study was conducted to evaluate the effects of liming materials on growth rice under rainshelter conditions and MR 219 variety used in this experiment. The treatments were: 1) T1, no application lime, 2) T2, 4 t ha-1 ground magnesium limestone (GML), 3) T3, 2 hydrated 4) T4, 20 L liquid lime. It found that GML had produced highest yield 8.2 ha-1. result showed as panicle length increase, spik...

To determine the effect of inorganic N fertilizer on the incidence of yellow stem borer (YSB), Scirpophaga incertulas Walker and on grain yield, yield attributes and bio-chemical characters of local paddy cultivar Tulaipanji, a field experiment for three consecutive years (2007-2009) was carried out by randomized block design in pesticide untreated field. Treatments comprised of seven different...

in order to study the effect of different nitrogen fertilizer rates and source-sink limitation treatments on yield and yield component of contrast rice (oryza sativa l.) cultivars, a field experiment was carried out in the rice research institute of iran-deputy of mazandaran (amol) during 2006. a split split experiment in the basis of randomized complete block design with 3 replications and 3 f...

The current paper has presented the study results of second-generation hybrid population ‘Bakhus x Kontakt’ combination. variety ‘Bakhus’ is large-kernelled, vigorously growing, tall, unresistant to lodging, ‘Kontakt short, resistant medium-kernelled. purpose was analyze inheritance a number quantitative traits in F 2 rice and select best plants for further breeding process. In process hybridol...

studies of genetic diversity of plant populations are very important tools for plant breeders. in this study, 110 rice genotypes, including 39 iranian local, 20 iranian improved and 51 foreign improved varieties were studied for 14 agronomic traits in the the rectangular lattice design at the rice research institute of iran (rasht). the analysis of variance showed that there were significant di...