苏丹草、甜高粱与高粱雄性不育系杂交父本生产性能的初步评价

试验选用苏丹草、甜高粱品种(系)与高粱雄性不育系进行杂交,选育优势杂交组合。共参试15个品种(系)。为避免后续杂交育种工作中选择亲本的盲目性,使针对性更强,首先,通过8个农艺性状指标和两个产量指标先对15个父本进行选择,以减轻工作量,为日后选育高产草量、高产籽量和适中含糖量的杂交育种工作提供理论性依据。最后,共选择了7个父本:W010、T03、N0601、06-071⑤、DxK、B8①和B9⑤。在这7个入选的父本中,同等种植密度下,B8①为籽粒产量高的苏丹草品种,而鲜草产量偏低;甜高粱DxK的籽粒产量最低,鲜草产量较高;其余5个父本的籽粒产量和鲜草产量兼得,是理想的父本材料。

Evaluation of Male Parent Production Performance of Sudan Grass,Sweet Sorghum and Sorghum Male Sterile Line

In this study,we chose Sudan grass and sweet sorghum to hybridize with Sorghum male sterile lines,to select advanced interspecific combinations.There are 15 kinds of male parent materials,to avert the blindness of follow-up crossbreeding,make it more pertinent,we firstly chose fifteen male parents through eight agronomic characters index and two production index to minimise workload,meanwhile,to Provide theoretical basis for breeding high green forage yield、high seed yield and moderate sugar content in future.Finally,we selected 7 kinds of materials as the male parents:W010、T03、N0601、06-071⑤、DxK、B8①和B9⑤.Among all these materials,under the same planting destiny,the seed yield of B8① is high,while the green forage yield is lower than the others;Relatively,the seed yield of DxK is the lowest,then the green forage yield is high;The seed yield of the five remaining materials is high,so is the green forage yield,all of them is good male parent materials.