SpkPho Computation Textile treatment is used to inhibit photosynthesis of the spikes through shading(comparison between control and treated spikes). Randomly selected spikes (for example: 12 spikes) per plot are covered with a special designed textile 10 days after anthesis under irrigation and drought or 10 days after heading under heat environments. Then, at physiological maturity the spikes are harvested together with 12 control spikes and the number of grains and weight are recorded and compared the treated spikes with the control ones (Sanchez-Bragado et al., 2016). method_of scale_of attribute variable_of acronym entity