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以6个珍汕97B改良新不育系珍品A、珍农567A、珍农711A、珍农256A、珍农257A、珍农060A为母本,珍汕97A为对照,以48-2为父本,进行了杂交制种产量比较试验。结果表明,与对照(珍汕97A/48-2)相比,不育系珍农257A、珍农256A、珍品A和珍农567A分别与48-2配制F1的制种产量极显著增加,平均产量分别为3.13,3.07,3.06和2.97 t/hm2,分别比对照增产14.31%,12.36%,11.81%和8.45%;这4个不育系柱头外露率和异交结实率均高于珍汕97A是制种产量显著提高的主要原因。
Six Zhenshan 97B improved new sterile line Treasures A, Zhennong 567A, Zhennong 711A, Zhennong 256A, Zhennong 257A, Zhennong 060A as female parent, Zhenshan 97A as control, 48-2 as male parent , The hybrid seed yield comparison test. The results showed that compared with the control (Zhenshan97A / 48-2), the yield of sterile lines Zhennong257A, Zhenin256A, Zhenpin A and Zhennong567A were significantly increased with that of 48-2F1. The average The yield was 3.13, 3.07, 3.06 and 2.97 t / hm2, respectively, which increased 14.31%, 12.36%, 11.81% and 8.45% respectively than the control. The stigma exsertion rate and outcrossing seed setting rate of these four lines were higher than that of Zhenshan 97A The main reason for the significant increase in yield.