The gca variances of female parent were larger than that of male parent in brix,stalk diameter and clump weight. The broad sense heritability of clump available stalk numbers, plant biomass and brix were beyond 50%.

• 茎径、锤度和丛重母本gca方差大于父本 gca方差 ；丛有效茎数、锤度和地上部鲜重的广义遗传力在 5 0%25以上 .