‘Mexican June’ was a popular white, open-pollinated maize variety grown in the southwestern and southern USA. It was well adapted to both semi-arid and humid, hot environments and it was utilized for forage and grain. Its production waned with the maize hybrid revolution of the 1930s and 1940s—even though it was proven to outperform the new hybrids in hot, dry climates of the Southwest. The rising popularity of locally grown heirloom crops has increased interest in landrace varieties. There is also increasing focus on desert-adapted crop genetic resources as the need for more climate resilient crops is recognized. We tested the yield performance of six accessions of ‘Mexican June’ in comparison with organic certified commercial hybrids in southern New Mexico. We also documented several plant and ear traits to distinguish variation across the accessions. Several accessions yielded at or near commercial hybrid levels, attesting to the adaptation of ‘Mexican June’ to hot, semi-arid environments. This finding demonstrates that ‘Mexican June’ may prove useful in non-GMO production systems, and as a genetic resource for the improvement of abiotic stress tolerance in new, more resilient varieties. Variation in plant, ear, and kernel traits between accessions of ‘Mexican June’ was consistent with the hypothesis that there is not a single variety of ‘Mexican June’, but multiple varieties that form a complex.

“墨西哥六月”是一种在美国西南部和南部种植的流行白色，开放授粉的玉米品种。它非常适合半干旱和潮湿，炎热的环境，并用于饲料和谷物。其产量随着1930年代和1940年代玉米杂交技术的革命而衰落，尽管事实证明，在西南炎热干燥的气候下，玉米杂交技术的表现要优于新的杂交种。当地种植的传家宝作物越来越受欢迎，这使人们对地方品种的兴趣增加。由于人们认识到需要更多具有气候适应力的农作物，因此也越来越关注适应沙漠的农作物遗传资源。我们与新墨西哥州南部经过有机认证的商业杂交品种相比，测试了六种“墨西哥六月”品种的产量表现。我们还记录了几种植物和耳朵的性状，以区分不同种质的变异。几种品系的产量达到或接近商业杂种水平，证明了“墨西哥六月”适应炎热，半干旱的环境。这一发现表明，“墨西哥六月”在非转基因生产系统中可能是有用的，并且可以作为提高新的，更具抗逆性的品种的非生物胁迫耐受性的遗传资源。“墨西哥六月”种质之间植物，穗和籽粒性状的变化与“墨西哥六月”没有单一变种，而是形成一个“墨西哥六月”的多个变种的假说是一致的。这一发现表明，“墨西哥六月”在非转基因生产系统中可能是有用的，并且可以作为提高新的，更具抗逆性的品种的非生物胁迫耐受性的遗传资源。“墨西哥六月”种质之间植物，穗和籽粒性状的变化与“墨西哥六月”没有单一变种，而是形成一个“墨西哥六月”的多个变种的假说是一致的。这一发现表明，“墨西哥六月”在非转基因生产系统中可能是有用的，并且可以作为提高新的，更具抗逆性的品种的非生物胁迫耐受性的遗传资源。“墨西哥六月”种质之间植物，穗和籽粒性状的变化与“墨西哥六月”没有单一变种，而是形成一个“墨西哥六月”的多个变种的假说是一致的。复杂的。