Across between two pea plants results in 732 purple and 268 white plants. what is (are) the genotype(s) and phenotype(s) of the parents that produced these offspring

You want to cultivate some exotic plants at your farm. however, the climate is chillier than the temperature range favorable to the crop. which is the best method to use for the cultivation of this exotic crop? a. use a crop rotation method b. use a lot of fertilizer c. prepare the seed bed properly d. use a greenhouse e. use irrigation