heterosis

As a general, boll number usually has high midparent or competitive heterosis, the boll weight has middle heterosis, but there is have no midparent heterosis in lint percentage.

一般而言，单株铃数具有较高的种优势，铃重具有中等的种优势，衣偏向双亲一或居于中间，有种优势。

The heterosis use model mainly is the Kafir×kaoliang, the kaoliang×kaoliang, trend Kafir×trend kaoliang, the Shallu×trend kaoliang.

种优势利用模式主要是南非高粱×中国高粱，中国高粱×中国高粱，倾南非高粱×倾中国高粱，印度高粱×倾中国高粱。