Glad to hear you got some rain! That your cultivars survive severe drought is remarkable, and encouraging. I always get a chuckle about how some folks rant & rave about GMO crops, not realizing how much we depend on that, whether by crossbreeding or genetic engineering. Heck, we pondmeisters do the same when we buy HSB, HBG, Tiger Muskie, or Tiger Bass!
Also, your crop probably benefits from rising atmospheric CO2 levels. It's well established that most plants need to open their stoma less in CO2 enriched environments, thus losing less water to evaporation. One reason why the deserts are greening.