HE phenomenon of heterosis has generally been studied in relation to some Tarbitrarily selected trait such as size, weight, or yield. Heterosis is then regarded as being manifested by an increase in the chosen trait. Although various definitions have been proposed ( GOWEN 1952), heterosis is most commonly and most meaningfully defined as an increase in the chosen trait in crossbred individuals ...

Plant growth can be studied at different organizational levels, varying from cell, leaf, and shoot to the whole plant. The early growth of seedlings is important for the plant's establishment and its eventual success. Wheat (Triticum aestivum, genome AABBDD) seedlings exhibit a low early growth rate or early vigor. The germplasm of wheat is limited. Wild relatives constitute a source of genetic...

The genetic basis of seed germination and seedling vigor is largely unknown in Brassica species. We performed a study to evaluate the genetic basis of these important traits in a B. rapa doubled haploid population from a cross of a yellow-seeded oil-type yellow sarson and a black-seeded vegetable-type pak choi. We identified 26 QTL regions across all 10 linkage groups for traits related to seed...

Enhancement of performance in traits of economic importance by use of heterosis (hybrid vigor) is routine in poultry breeding. There is, however, no reliable method to predict the level of heterosis that will occur from the mating of individuals from two populations. DNA fingerprints (DFP) were used as a measure of genetic distance between mating pairs of chickens where each individual of a pai...

0092-6566/$ see front matter 2012 Elsevier Inc. A http://dx.doi.org/10.1016/j.jrp.2012.05.009 ⇑ Corresponding author. Address: Department of Ps Oregon, Eugene, OR 97403, USA. E-mail address: [email protected] (K.M. Living This research aimed to identify strategies people use to up-regulate positive emotions, and examine associations with personality, emotion regulation, and trait and state po...

Industrial Revolution 4.0 is a phenomenon that collaborates with cyber technology and automation technology. this research aims to conduct scientific on the role of work-life balance level welfare millennial employees through work engagement as variable intervening. The participation respondents study general millennials who has worked in Jakarta area, aged 21-36 years. Researchers used purposi...

We aimed to identify quantitative trait loci (QTL) for secondary traits related to grain yield (GY) in two BC1F2:3 backcross populations (LPSpop and DTPpop) under well-watered (4 environments; WW) and drought stressed (6; DS) conditions to facilitate breeding efforts towards drought tolerant maize. GY reached 5.6 and 5.8 t/ha under WW in the LPSpop and the DTPpop, respectively. Under DS, grain ...