品种产量的改良中，黄河、长江和新疆棉区基因型效应分别为18.7%、21.8%和38.8%；

• In the yield improvement, the genotype effect contributed to the yield increase in HCR, CCR and XCR with the rate of 18.7%25, 21.8%25 and 38.8%25, respectively;