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1 穗行测交提纯法第一年:自交和测交: 在自交系繁殖区,选择具有典型性状的优良单株100～200株。各株除了人工自交外,分别用每株的花粉与特定的自交系进行测交(即原定杂交组合的另一亲本作测验种,如提纯中单二的母本,就以中单二的父本作测验种)。一般每株各测交5～6穗。各自交穗与测交穗要成对编号。同一测交穗可混合脱粒供下年作配合力测定。自交穗收获后淘汰非典型穗,同时也淘汰相应的测交穗。当选的自交穗,单穗脱粒,备下一年作穗行鉴定。第二年:穗行鉴定和配合力测定: 将上一年当选的自交穗在隔离区种成穗行。在当
1 ear line to test the first purification method: selfing and test: in the inbred breeding area, select the typical traits of 100 to 200 excellent single plant. In addition to artificial selfing, each strain was pollinated with the specific inbred lines of each strain separately (ie, another parent of the original crossed combinations was used as the test species. For example, if the single parent was purified, Two paternal for test species). The general test of each plant 5 to 6 spike. Spike and test spike each pair to be paired numbers. The same test spike can be mixed for threshing next year for determination of combining ability. Self-spike earning atypical spike after harvest, but also eliminate the corresponding test spike. Elected self-spike, single spike threshing, preparation for the next year for ear identification. Year Two: Identification of Ear Lines and Determination of Combining Ability: Self-made spikes elected in the previous year were sprouted in isolation areas. At the moment