However, in both types seed yield is negligible in the seedling year, unless plants are put in spaced plantings and established early in the growing season. Specific genotypes, as clones, differ in seed production. The differences appear to be related mostly to flower production, with other components being involved to a lesser but variable degree. Some of these differences are probably specific interactions of clones with environmental stresses. Others are intrinsic to the clone, for reasons unknown.
Information is likewise lacking on compensatory relationships among components of seed yield.