Herbivore cycles are often synchronized over larger areas than what could be explained by dispersal. In Norway, the 3-4 year lemming cycle usually show no more than a one-year time lag between different regions, despite distances of up to 1000 km. If important food plants are forced to reallocate defensive proteins in years with high seed production, spatially synchronized herbivore outbreaks m...

Early detection of within-field yield variability for high-value commodity crops, such as cotton (Gossypium spp.), offers growers potential to improve decision-making, optimize yields, and increase profits. Over recent years, publicly available datasets have become increasingly at a resolution where prediction is possible. However, the viability using these with machine learning predict lint ke...

Peak bloom is one of the most recognizable periods in cotton development Fields may become blanketed with white blooms as boll loading accelerates to a maximum. This landmark developmental stage signals that a shift is occurring in the crop's biology and your management priorities. This newsletter will profile the crop at peak bloom and outline some management considerations that can affect per...

It is commonly believed that colonization of early-season cotton, Gossypium hirsutum L., by overwintered boll weevils, Anthonomus grandis grandis Boheman, is concentrated on field margins. However, supporting experimental evidence is not available. In 1999 and 2000, we examined colonization patterns of overwintered boll weevils in Central Texas cotton on the bases of adult collections by a pneu...

this study was carried out in order to identify the effects of soil water depletion (swd) on monogerm sugar beet (cv. shirin) seed growth trend at different growth stages. an experiment was conducted in randomized complete block design (rcbd) with three replications in ardebil agricultural research station. during 2002 and 2003 cropping seasons, nine treatments including control (irrigation aft...

Year to year change in weather poses serious threats agriculture globally, especially developing countries. Global climate models simulate an increase global temperature between 2.9 5.5 °C till 2060, and crop production is highly vulnerable warming trends. Extreme causes a significant reduction yields by negatively regulating the phenology. Therefore, evaluate impact on cotton (Gossypium hirsut...

In crop growth and development, boron (B) is an essential trace element. Boron deficiency is common in highly leached, acidic sandy soils of cotton (Gossypium hirsutum L.) growing regions in the world. Boron is particularly important in pollen germination and pollen tube growth resulting in successful fruit setting. Therefore, B deficiency during flowering and fruiting may significantly reduce ...