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Performance of heat-tolerant lettuce cultivars in Southern New Mexico in 2020—21

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Performance of heat-tolerant lettuce cultivars in Southern New Mexico in 2020—21


Lettuce (Lactuca sativa) is a high-value crop cultivated worldwide. Harvested lettuce acreage in New Mexico, USA, trails the leading lettuce production states (California, Arizona), but growers in New Mexico are interested in expanding their production. For New Mexico farmers to increase lettuce production to reach new markets, information on heat-tolerant cultivar performance is needed.

Researchers from New Mexico State University have published new findings on the performance of heat-tolerant lettuce cultivars in Southern New Mexico. The study, conducted during the 2020-21 growing seasons, highlights the potential of specific lettuce varieties to thrive in high-temperature environments, offering significant benefits to local farmers and the agricultural industry.

The study evaluated six lettuce cultivars under the region’s challenging climatic conditions. Southern New Mexico’s high temperatures and intense sunlight can be detrimental to traditional lettuce varieties, making it crucial to identify cultivars that can withstand heat stress without compromising yield or quality.

To determine which cultivars and types of lettuce are better suited for southern New Mexico, researchers measured the following variables: marketable harvest weight, number of days from transplant to first bolt, and number of days from transplant to 50% bolted.

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Temperature is one of the main factors affecting the germination and growth rate of lettuce. Higher temperatures often reduce lettuce yield and cause physiological disorders such as premature bolting, tipburn, and ribbiness (protuberances of the outer ribs that prevent normal head development). One of the main methods of overcoming temperature limitations for lettuce production is cultivar selection. Seed companies have many listed heat-tolerant lettuce cultivars, some of which have been evaluated in different locations and many cultivars have been found to be heat-tolerant in specific locations. Heat tolerance is the capacity of plants to function and remain productive under high-temperature stress.

Bolting, when lettuce transitions from vegetative growth to reproductive growth, is promoted in lettuce when temperatures exceed 86 °F. After bolting occurs, the edible portion of lettuce can no longer be harvested. Early bolting could be related to a high sensitivity to increased temperature and is not a desirable trait for lettuce cultivation in warmer temperatures.

This research trial is the first to identify optimal lettuce cultivars for the southern New Mexico region. The consistently high yield of romaine-type lettuce cultivar Sparx makes it a suitable option for growers in southern New Mexico. ‘Sparx’ was productive into the warmer months of the summer, while ‘Mikola RG10’ (butterhead type) and ‘Muir’ (green leaf type), demonstrated slower bolting in 2021. These cultivar performance results offer an initial starting point for further research into appropriate planting dates for southern New Mexico lettuce growers.

The full article can be found on the ASHS HortTech electronic journal website at: https://doi.org/10.21273/HORTTECH05224-23

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Source: ashs.org



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New Mexico confirms latest measles case at a local jail

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New Mexico confirms latest measles case at a local jail


The number of confirmed measles cases in New Mexico increased to six after the state’s Department of Health confirmed Wednesday a new case inside a local jail in Las Cruces.

A federal inmate being held in the Doña Ana County Detention Center is the latest person to have tested positive for measles. The New Mexico Department of Health said others may have been exposed to the highly contagious disease from this confirmed case if they visited the U.S. District Court building in Las Cruces on Feb. 24.

State heath officials are now urging anyone who was at the courthouse that day to check their vaccination status and report any measles symptoms from now until March 17 to a health care provider.

“The New Mexico Department of Health continues to urge people to get the measles, mumps and rubella (MMR) vaccination,” Dr. Chad Smelser, New Mexico’s deputy state epidemiologist, said in a statement. “Vaccine is the best tool to protect you from measles.”

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Measles spreads through the air and people who contract the virus may experience symptoms such as runny nose, fever, cough, red eyes and a distinctive blotchy rash. These symptoms can develop between one and three weeks after exposure.

All of the six confirmed measles cases in New Mexico so far are federal detainees.

The first measles case was detected in the Hidalgo County Detention Center on Feb. 25, when a detainee, whose vaccination status was unknown, tested positive for the disease by the New Mexico Department of Health’s Scientific Laboratory.

Two days later, a second federal inmate in the same jail tested positive for the virus alongside two detainees in the Luna County Detention Center and another in the Doña Ana County Detention Center.

Both the Luna County and Doña Ana detention centers are local jails that also serve as holding facilities for federal immigration enforcement.

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New Mexico health officials said they are the state’s first confirmed cases of this year, following a statewide outbreak in 2025 that sickened 100 people from mid-February to mid-September.

With two measles cases reported on each of the three local jails, Smelser said that the New Mexico Department of Health has sent vaccination teams to all three facilities.

State health officials are also “coordinating with all the facilities to assure all quarantine, isolation, testing and vaccination protocols are followed to minimize risk of measles spread.”

According to the NBC News measles tracker, more than 1,000 cases have been counted nationwide just in the first two months of this year. That’s nearly half the amount of cases confirmed in the United States in all of last year.

As 2026 already stands as one of the three worst years for measles infections in the country since 2000, another measles outbreak was confirmed this week in Texas inside the nation’s largest immigration detention facility.

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On Wednesday, an Immigration and Customs Enforcement spokesperson told NBC News that a least 14 cases of measles were confirmed inside Camp East Montana, which is located on the Fort Bliss Army base in El Paso.

The people who tested positive for measles have been “cohorted and separated from the rest of the detained population to prevent further spread,” the ICE spokesperson said.



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New Mexico legislation focusing on K-3 math education aims to improve stubbornly low scores

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New Mexico legislation focusing on K-3 math education aims to improve stubbornly low scores


Aaron Jawson regularly spends time reteaching the basics to his sixth grade math students.

They often have a bit of a complex around math, said Jawson, who teaches at Ortiz Middle School. They often have a lot going on at home, or a lot of stress about societal problems.

And in many cases they have been behind for years.

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The problem

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Why K-3?

Teacher preparation







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Jesus Dominguez ponders the next step in an equation during Aaron Jawson’s sixth grade math class Monday at Ortiz Middle School.

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Family involvement

Other changes







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Jesus Dominguez ponders the next step in an equation during Aaron Jawson’s sixth grade math class Monday at Ortiz Middle School.


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What more could be done?

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Retired Wright-Patterson general mentioned in UFO report missing in NM

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Retired Wright-Patterson general mentioned in UFO report missing in NM


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  • A retired U.S. Air Force general, Maj. Gen. William Neil McCasland, has been reported missing in New Mexico.
  • McCasland formerly commanded the Air Force Research Laboratory at Wright-Patterson Air Force Base in Ohio.
  • His name was mentioned in a 2016 WikiLeaks email release in connection to UFO research.

A retired U.S. Air Force general who once commanded a research division at Wright-Patterson Air Force Base near Dayton, Ohio, has gone missing in New Mexico.

This is what we know.

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McCasland commanded Air Force Research Laboratory at Wright-Patterson Air Force Base

The Bernalillo County Sheriff’s Office has issued a Silver Alert for Maj. Gen. William Neil McCasland, 68, who has been missing since last week, Newsweek reports. He was last seen on Feb. 27 in Albuquerque. McCasland is 5 feet 11 inches tall and weighs about 160 pounds. He has white hair and blue eyes, and he has unspecified medical issues, per the sheriff’s office, which is worried about his safety.

McCasland was the commander of the Air Force Research Laboratory at Wright-Patterson Air Force Base near Dayton, according to his Air Force biography. He managed a $2.2 billion science and technology program as well as $2.2 billion in additional customer-funded research and development. He joined Wright-Patterson in 2011 and retired in 2013.

He was commissioned in 1979 after graduating from the U.S. Air Force Academy with a Bachelor of Science degree in astronautical engineering. He has served in a wide variety of space research, acquisition and operations roles within the Air Force and the National Reconnaissance Office.

McCasland mentioned in WikiLeaks release in connection to UFOs

McCasland was described as a key adviser on UFO-related projects by Tom DeLonge, UFO researcher and guitarist for Blink-182, Newsweek reports. The general’s name appears in the 2016 WikiLeaks email release from John Podesta, then Hillary Clinton’s campaign manager.

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In emails to Podesta, DeLonge said he’s been working with McCasland for months and that the general was aware of the materials DeLonge was probing because McCasland has been “in charge of the laboratory at Wright‑Patterson Air Force Base where the Roswell wreckage was shipped,” per Newsweek.

However, there is no official record of DeLonge’s claims, and McCasland has neither confirmed nor denied it.

Wright-Patterson Air Force Base home to UFO project

The Dayton Air Force base was home to Project Blue Book in the 1950s and 60s, according to “The Air Force Investigation into UFOs” published by Ohio State University.

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During that time, it logged some 12,618 UFO sightings, with 701 of those remaining “unidentified.” The U.S. government created the project because of Cold War-era security concerns and Americans’ obsession with aliens.



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