Title : New opaco black bean lines, Jamapa type, for the high valleys of the central area of Mexico, with high protein content
In the central area of Mexico, where Mexico City and its metropolitan area are included, virtually all commercial dry bean classes are consumed, and one of the most important is the opaque black Jamapa type. This type of dry bean is not produced in the High Valleys of the Central Table, but in the low and tropical areas of Mexico, mainly in the states of Veracruz and Nayarit. In recent years, new bean lines of this type have been developed, which has high yield, resistant to harmful organisms and good nutritional and culinary characteristics and are well adapted to the conditions of the high areas of México. During the spring-summer crop season 2009, 2010, 2011, 2013, 2014, 2015 and 2017, experimental nurseries opaque black bean genotypes, product of the cross between Jamapa x J-117 . including Jamapa variety as control, were established under rainfeed conditions,at Texcoco, Estado de Méx., At an altitude of 2,250 meters above sea level. The results show good genotypes for these production conditions, with seven experimental lines with average values exceeding 1,300 kilograms per hectare. The average yield of Jamapa has been 940 kg / ha. In the advanced stages of these genotypes, selection is being made based on grain quality characteristics, mainly cooking time and protein content, whose values detected in the 2014 and 2015 harvests, show that four genotypes have similar cooking times than Jamapa variety, between 71 and 75 minutes, and exceed it in protein content above 24%, such as genotypes Jamamante (Exp) and Jamatam (Exp).