نتایج جستجو برای: crop breeding
تعداد نتایج: 122339 فیلتر نتایج به سال:
This presentation is a concept review paper dealing with a central dilemma in understanding, designing, and acting upon crop plant improvement programs for drought conditions. The association among yield potential (YP), drought resistance (DR), and water-use efficiency (WUE) is often misunderstood, which in turn can lead to conceptual oversight and wrong decisions in implementing breeding progr...
For grains and oilseed crops, increasing food production most often means the ability to produce better yields under the same conditions or, more generally, the ability to better resist weeds, insects and diseases. Many important improvements have been achieved by ordinary breeding, but it is a slow process. Given the rate at which the demand for food is likely to increase in future years, subs...
Crop wild relatives of sweetpotato [Ipomoea batatas (L.) Lam., I. series Batatas] have the potential to contribute to breeding objectives for this important root crop. Uncertainty in regard to species boundaries and their phylogenetic relationships, the limited availability of germplasm with which to perform crosses, and the difficulty of introgression of genes from wild species has constrained...
Genotypic adaptation involves the incorporation of novel traits in crop varieties so as to enhance food productivity and stability and is expected to be one of the most important adaptation strategies to future climate change. Simulation modelling can provide the basis for evaluating the biophysical potential of crop traits for genotypic adaptation. This review focuses on the use of models for ...
Food legumes play an important role in attaining both food and nutritional security along with sustainable agricultural production for the well-being of humans globally. The various traits of economic importance in legume crops are complex and quantitative in nature, which are governed by quantitative trait loci (QTLs). Mapping of quantitative traits is a tedious and costly process, however, a ...
1. Eruptions occur when a species appears in unusually high densities within and often outside of its normal range. We used 30 years of Christmas Bird Counts combined with cone/seed-crop data on boreal coniferous trees, breeding bird surveys, and weather records to test correlates of winter eruptions by 11 species of primarily boreal North American seed-eating birds. 2. Eruptions of six species...
The ISU Crop Bioengineering Consortium (CBC) was organized to address the urgent, grand challenge to provide sufficient food, feed, biofuels and biorenewable chemicals for the world’s burgeoning population, through basic and applied research, to enable the bioengineering of valuable traits in a variety of crops. Importantly, the novel technologies employed can produce bioengineered crops that c...
Plant tissue culture comprises a set of in vitro techniques, methods and strategies that are part of the group of technologies called plant biotechnology. Tissue culture has been exploited to create genetic variability from which crop plants can be improved, to improve the state of health of the planted material and to increase the number of desirable germplasms available to the plant breeder. ...
the era of transgenic breeding or GMO technologies, the 21st century is silently turning to non-transgenic breeding or non-GMO technologies. Due to significant regulatory issues, cost of development and technology constraints, transgenic breeding technologies have been limited to a few crops grown on large acreages, i.e. about 10% of the available cultivated acres globally1. The promise of non-...
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