Abstract

MALDONADO MORENO, Nicolás  and  ASCENCIO LUCIANO, Guillermo. Huasteca 200, soybean cultivar less sensitive to short photoperiod for the Mexican Tropic. Rev. Mex. Cienc. Agríc [online]. 2010, vol.1, n.5, pp.707-714. ISSN 2007-0934.

For tropical or short days environments, cultivar with long juvenile period or low sensitivity to short photoperiod are required to ensure proper plant growth and acceptable yield potential. Huasteca 200 is a cultivar that has low sensitivity to tropics short photoperiod so it has an excellent adaptation in "late" summer sowings. Flowering occurs 52 days after sowing; their plants reach 109 cm height. Has a cycle of 118 days. It is resistant to diseases and pests in southern Tamaulipas and other regions of Mexican tropic. The average yield of several trials was 2 160.4 kg ha^-1, 8% superior to that of cultivar Tapachula 86. Is adapted to tropical lowland regions with humid and subhumid climate with average annual rainfall from 800 to 1 000 mm, and average temperature from 25 to 27 °C.

Keywords : adaptation; variety; yields.