-
On-farm mechanization was closely tied to inventive efforts of local mechanics
Employment of state-of-the-art feed lots and modern science and veterinary medicine along with favorable climatic conditions allowed ranchers in California and Arizona to achieve significant efficiencies in converting feed to cattle weight. In the 1960s, larger commercial feedlots started to become more prevalent in the Southwest and in the Corn Belt.Thus, as in other cases,…
-
What Is The Most Profitable Hydroponic Crops To Grow
The profitability of hydroponic crops can vary based on multiple factors such as market demand, local climate, production costs, and personal expertise. However, here are some hydroponic crops that are generally considered to have good profit potential: It’s crucial to conduct thorough market research, analyze production costs, and consider your specific local conditions before deciding…
-
One of the most significant challenges reported by urban farmers is crop pests
All measures except open-ended surveys were repeated in 2015. Subsequently, in proceeding research years six additional sites were added for a total twenty-nine farms that participated in this research . Due to variability in support, turnover of garden managers, and a variety of other factors, some farms only participated in portions of the research .…
-
This has greatly diminished the utility of groundwater as a drought supply
The economic toll of the drought is fewer jobs and smaller value of output and economic contribution that would have otherwise occurred. Based on 564,000 idled acres, Howitt et al. estimates farm revenue losses of $1.8 billion, economy-wide revenue losses of $2.7 billion, and 18,600 fewer jobs due to the agricultural drought. That these economic…
-
Many factors influence the evolution of herbicide resistance in weed populations
Herbicide resistant weeds have become especially challenging problems in California’s signature cropping systems, which are characterized by little or no crop rotation due to soil limitations or long cropping cycles and relatively few opportunities for mechanical weed control. Although large by specialty crop standards, the approximately 3 million acres devoted to orchard, vineyard and rice production in California…
-
Transgenic technologies provide powerful tools for crop improvement
An identical peristaltic pump pushed deionized water through the flow cell. The in-line sampling protocol was as follows: 1.5 min of flushing the optical cell with water, 1.5 min with water “reference” measurement, 1.5 min of wine flowing through the cell, and 1.5 min of sample measurement. A total of 100 mL of wine is…
-
The expression of both transgenes was quantified by using a specific assay
No differences in the vegetative growth were observed for any of the six and nine lines selected carrying VviINO.1 and VviINO.2, respectively , even though some variability was observed in the size of silique in mature plants . Careful observation of ovule phenotypes both by stereo and optical microscope showed that both VviINO.1 and VviINO.2…
-
Almond is the most important tree nut crop in California in terms of acreage and production value
As seen in Figure 3.6 however, the only significant change produced by 24 hour cytokinin treatments was a doubling of the fluorescent signal, which affected both modified reporters and the pWUS:eGFP-WUS control alike. Expression of pWUS:NLS-eGFP-WUS was more clearly nuclear localized than pWUS:eGFP-WUS as expected, while pWUS:eGFP-NESWUS produced very little fluorescent signal under either treatment.…
-
A similar declining pattern was also found in continually de-fruited plants
The steady decline in the distance between meristems as previously observed, may simply reflect the decreasing size of the central area. Such an effect may be widespread among angiosperms, as bud rates increased following induction in chrysanthemums and Chenopodium amaranticolor, Protea spp., while increased meristem sizes following induction have been found in apple, strawberry, chrysanthemums,…
-
These findings are robust to use of quantitative or qualitative descriptors of polygyny
Decades of both theoretical and empirical research based on the polygyny threshold model have suggested that polygyny should be more common and more pronounced in populations in which males differ substantially in resource control. In humans, this will be in socio-cultural contexts where wealth is held predominately by men, and where there is high inequality…