Tag: hydroponic

The work reported here has focused on addressing two issues: which species will puncture intact fruit skin and the morphological evolution of the ovipositor. Future research, carried out in a comparative context, may lead to more insights on both the agricultural and evolutionary implications of our findings. A thorough analysis of any interspecific differences in…

To protect water quality, California regional water quality control boards have adopted different measures to regulate pollutants in water from agricultural operations, including implementation of best management practices . Typical pollutants in areas with exceedances of total maximum daily loads include nitrogen, sediment, phosphorus and pesticides, such as chlorpyrifos. Many surface water TMDL exceedances occur during the…

The differences were exacerbated in cluster weight , berries/cluster , and yield when 66% of the leaf area was removed. In 2018, the effect of defoliation was evident with a 12% decrease in berry weight. As in the previous year, we saw a diminution in cluster weight, berries/cluster, and yield. However, the decline in yield in…

A functional annotation was obtained using the RefSeq plant protein database as in Minio et al. .Berries from Cabernet Franc grapevines grafted to Kober 5BB or MGT 101-14 and infected with GLRaV-1 , GLRaV-3 , GLRaV-4 , GLRaV-1 and GLRaV-2 , or GLRaV-1 and GLRaV-3 were sampled during ripening in 2017 and 2018. In both years, fruits…

Controlled atmospheres or modified atmospheres are created by reducing O2 and/or elevating CO2 concentrations and have the general effect of slowing senescence and extending shelf life . The fundamental difference between CA storage and MA packaging systems is that in the CA storage system, gas levels are rigidly maintained, whereas in the MAP system, the gas mixture is…

When weather conditions are favorable in spring, sclerotia germinate and develop conidia that serve as inoculum for new infections . Sporulation on infected fruit or receptacles can also contribute to airborne inoculum able to infect canes . In geographic regions where raspberry is produced ina single cycle during the summer, symptoms of cane Botrytis first…

Treatment, time, and distance all impacted the number of CBB removed by ants. Ants removed more CBB from the natural vegetation treatment plants than from the string plants and removed more CBB on the string plants compared to the control plants . The overall number of CBB removed from the vegetation plants decreased with time…

These samples were then subjected to high resolution mass spectrometry using an Agilent 6545 quadrupole time-of-flight mass spectrometer , using conditions previously established for elderberry phenolic compounds. Data were then analyzed using Agilent MassHunter Workstation Qualitative Analysis 10.0 . To tentatively identify compounds, the mass to charge ratio of the precursor and fragment ions were compared to…

Rows were oriented along a north-south direction on an east facing slope. Three treatments , were included with ~0.056 ha plots. No pesticides were applied during the experimental period. Here, there were 28 GUM and buffer plots each and 18 UTC plots. GUM dispensers were applied on 10 October and ten berries were collected from…

Over the past three decades, California farmers hired 20% fewer workers directly, reducing average direct-hire employment in crops from 203,000 to 160,000. Meanwhile, crop-support employment rose by 60%, from an average of 132,000 in 1990 to 212,000 in 2020. Combined crop and crop-support employment accounts for over 90% of California’s agricultural employment. Within crop support employment , the…