نتایج جستجو برای: incompatible cultivars developed by breeding are available therefore self
تعداد نتایج: 9438067 فیلتر نتایج به سال:
Breeding progress in black raspberry (Rubus occidentalis L.) has been limited by a lack of genetic diversity in elite germplasm. Black raspberry cultivars have been noted for showing very few phenotypic differences and seedlings from crosses between cultivars for a lack of segregation for important traits. Despite these challenges, little molecular work has been done to explore genetic diversit...
Quantitative trait loci for whiteness of cooked rice detected in improved rice cultivars in Hokkaido
Improving the eating quality of cooked rice has been one of the most important objectives in rice breeding programs. Eating quality of cooked rice is a complex trait including several components, such as external appearance, taste, aroma, and texture. Therefore, dissection of these components followed by marker-assisted selection of detected QTL(s) may be a useful approach for achieving desirab...
Floral phenology and breeding system of Tillandsia streptophylla (Bromeliaceae) were studied in a low inundated forest in Yucatan, Mexico. During the flowering season, from March to August, terminal scapose 1-branched, paniculate inflorescences are produced with one flower per branch opening per day, over a period of 11-29 days. Flowers are tubular, light violet, with the stigma placed below th...
We used empirical and modeling approaches to examine effects of plant breeding systems on demographic responses to habitat fragmentation. Empirically, we investigated effects of local flowering plant density on pollination and of population size on mate availability in a common, self-incompatible purple coneflower, Echinacea angustifolia, growing in fragmented prairie habitat. Pollination and r...
Background: Date palm (Phoenix dactylifera L.) is a cultivated woody plant with agricultural and economic importance in many countries around the world. With the advantages of next generation sequencing technologies, genome sequences for many date palm cultivars have been released recently. Short sequence repeat (SSR) and single nucleotide polymorphism (SNP) can be identified from these genomic...
Analysis of genetic diversity changes in existing gene pools of cultivated crops is important for understanding the impact of plant breeding on crop genetic diversity and developing effective indicators for genetic diversity of cultivated plants. The objective of this study was to assess genetic diversity changes in 75 Canadian hard red wheat (Triticum aestivum L.) cultivars released from 1845 ...
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
Classical breeding of many crops has been instrumental for ensuring food security by developing new varieties that are higheryielding, resistant to pests and diseases, drought-resistant or regionally adapted to different environments and growing conditions. A total of 513 cultivars of different pulse crops including chickpea, pigeonpea, mungbean, urdbean, lentil, fieldpea and rajmash were devel...
Self-incompatibility is one of the most prominent inhibiting factors in almond production which reduces fruit set, making orchard management difficult. Therefore, breeding of almond to produce self-compatible genotypes is indispensably important. In this research work, pollen tube growth rate was studied in 38 genotypes obtained from crossing between Touno (male parent) and Shahrood 12 (female ...
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