番茄组合主要性状杂种优势表现及差异分析

Performance and Variance Analysis of Main Characters of Tomato Reciprocal Crosses

以3个番茄杂交组合B×C、K×B、B×I F1代及其亲本B、C、I、K为试材,以"小红"和"凤珠"为对照,研究分析了3个杂交组合的主要性状及杂种优势。结果表明:在3个杂交组合中,B×I的产量最高,为1 397.52kg/667m2;单果重最大为9.77g,显著高于I和C,坐果率最大为73.84%;B×I的维生素C含量较高,为7.93mg/100g,显著高于I;首花序节位最低,为第5节,结果期最短为135d;K×B较优。亲本中亲本I的产量最高,为1 462.86kg/667m2,极显著高于C;坐果率达83.55%。

Abstract： With 3 combinations B ×C, K × B and B × I （F1 generation） and its parents B, C, I. K as materials, using ‘Xiaohong＇ and ‘Fengzhu＇ as contrasts,the main performance and variance of main characters of tomato reciprocal crosses were studied. The results showed that BXI had the highest yield with 1 397. 52 kg/667m^2 ,and the single fruit weight was the highest with 9. 77 g, significantly higher than that of I and C, fruit setting rate was the highest with 73. 84 % l vitamin C of B × I was the higher with 7. 93 rag/100g, significantly higher than that of I;first inflorescence nodes was the minimum of 5,fruit setting stage was the minimum of 135 d. K× B was better. The yield of parent I was the highest with 1 462. 86 kg/667m^2 ,significantly higher than that of C;fruit setting rate reached 83. 55%.