The phenotyping of field crops quantifies a plant’s structural and physiological characteristics to facilitate crop breeding. High-throughput unmanned aerial vehicle (UAV)-based remote sensing platforms have been extensively researched as replacements for more laborious time-consuming manual phenotyping. This review aims elucidate the advantages challenges UAV-based techniques. is comprehensive overview summarizing UAV platforms, sensors, data processing while also introducing recent...

By providing both spatial and temporal information remote sensing may function as an important source of data for site-specific crop management. This technology has been used nitrogen application strategies to obtain optimum yield grain quality. Here, the objective was use early repeated remotely sensed multi-spectral predict quality winter wheat ( Triticum aestivum L.) spring barley Hordeum vulgare L.). The crops were sown with two different seeding rates a wide range applied. Multi-way...

Abstract Multispectral imaging is a new technology that being deployed to assess seed quality parameters. Examples of applications in the detection and identification fungi on seeds are presented, together with an example used for maturity determination sugar beet seed. Results from multispectral compared reference methods, high correlation found. Applications technique varietal discrimination insect damage also presented. There need non-destructive, reliable fast techniques, it concluded...

Abstract In two loblolly pine stands ( Pinus taeda L.), 11 and 32 years of age at study inception, nutrients in litterfall throughfall were measured, declines nutrient content observed as forest floor layers decomposed for up to 8 years. The floors the had similar rates release. After decomposition, 67% C, 27% N, 63% P, 91% K, Ca, 79% Mg released from materials. younger stand, release accounted 34, 59, 47, 65%, respectively, assimilated annually into aboveground biomass. older 86, 104, 73,...

Grain characteristic, chemical composition, and functional properties of rye were measured in 19 different cultivars grown one location up to 3 years. The included 8 adapted hybrids, 7 population cultivars, 4 nonadapted cultivars. results showed a significant influence both harvest year genotype on grain characteristics, the grain. Multivariate data analysis confirmed that variations explained by yearly differences. Calculations variance components plant height, yield, protein content mainly...

Abstract Nitrogen increases of 23 kg/ha/year were associated with annually burned loblolly pine ( Pinus taeda L.) in the lower Coastal Plain South Carolina. Unburned areas showed no increase N. fixation cores from forest floor and at depths 0–1 3–4 cm was assayed using acetylene‐ethylene technique, ethylene produced related to N fixation. In 0–4 mineral soil on plots more than 4 g/ha fixed 24 hours, but only 0.2 unburned areas. Up 61 hours individual samples Most took place 14% samples; half...

Application of rapid and time-efficient health diagnostic identification technology in the seed industry chain could accelerate required analysis, characteristic description also ultimately availability new desired varieties. The aim study was to evaluate potential multispectral imaging single kernel near-infrared spectroscopy (SKNIR) for determination variety separation winter wheat (Triticum aestivum L.) triticale (Triticosecale Wittm. & Camus). carried out autumn 2013 at AU-Flakkebjerg,...

The objective of seed testing is to provide high-quality seeds in terms high varietal identity and purity, germination capacity, health. Across the industry, it widely acknowledged that quality assessment needs an upgrade improvement by inclusion faster more cost-effective techniques. Consequently, there a need develop apply new techniques alongside classical methods, increase efficiency, reduce analysis time, meet stakeholders testing. Multispectral imaging (MSI) near-infrared spectroscopy...

SUMMARYPopulations of soil microorganisms were examined to determine the effects prescribed burning in loblolly pine stands on coastal plain. Burning had no effect number fungi per gram soil, although annual did reduce their total numbers through a decrease weight organic horizon (F + H layer). The bacteria and actinomycetes F+H layer was reduced by burning. Treatment produced only minor differences genera or species isolated.

Intake of phytosterols (and -stanols) has been shown to decrease the level low-density lipoprotein cholesterol and thus protect against development cardiovascular diseases. Therefore, studies on cultivar year-to-year variation in phytosterol content rye grains have performed. The composition different cultivars, grown under identical conditions same field three consecutive years, were analyzed. Both sterol statistically significant (p < 0.0001). total varied from 1007 ± 21 mg/kg highest...

In the present study a set of 108 spring barley (H. vulgare L.) accessions were cultivated under predicted future levels temperature and [CO2] as single factors in combination (IPCC, AR5, RCP8.5). Across all genotypes, elevated (700 ppm day/night) slightly decreased protein concentration by 5%, while (+5 °C substantially increased 29%. The combined treatment across 8%. This was an increase less than from strictly additive effects individual treatments. Despite grain concentration, decrease...

Septoria tritici blotch (STB) is among the most devastating diseases in European wheat production. In recent years, there has been increased interest using cultivar mixtures as part of an integrated control strategy against diseases. This study investigated different for their ability to STB across three years and at seven trial sites Denmark with a range fungicide strategies, yielding total 194 individual mixture combinations. The were composed two, three, or four cultivars that either...

Respiration was determined manometrically for 136 samples of field-grown loblolly pine roots collected over a period several months. Mean [Formula: see text] values ranged from 0.028 to 3.68, depending upon root size, type, mycorrhizal condition, and temperature. Roots with vigorous, active mycorrhizae respired more than twice as fast, on dry weight basis, less vigorous or no mycorrhizae. Unsuberized root-tip meristems times faster any other type.

SUMMARYPopulations of soil microorganisms were examined to determine the effects prescribed burning in loblolly pine stands on coastal plain. Burning had no effect number fungi per gram soil, although annual did reduce their total numbers through a decrease weight organic horizon (F + H layer). The bacteria and actinomycetes F+H layer was reduced by burning. Treatment produced only minor differences genera or species isolated.