5个番木瓜品系比较试验

【目的】选育出综合农艺性状优良、抗病性强、适宜在华南地区种植的番木瓜新品种。【方法】对5个杂交选育的大果型番木瓜品系与对照品种穗中红48号的植物学特征、主要经济性状、产量和抗病性等进行比较。【结果】品系200919的平均单果重和单株产量均最高,分别为1.60和20.77kg,平均产量也最高,为46110kg/ha,较对照差异达显著水平,其横径、可溶性固形物含量、果汁等较对照均有明显的优势;品系200915和200917产量分别为40530和39555kg/ha,均较对照增产,但差异不显著;品系200916和200918较对照减产;5个供试品系的抗病性均为高抗水平,调查初期,品系200919未发现感病病株,后期调查发病率较低,仅为4.2%,病情指数为0.8。【结论】品系200919具有树势强壮、高产、优质、抗环斑花叶病等优势,可继续参加下一年的品比试验。

Comparative analysis of different Carica papaya L. lines

[Objective]The present study was conducted to select some new high quality varieties with better agronomic traits, strong disease resistance and suitability for planting in Southern China. [Method]A comparative analysis of some botanical, economic and yield characteristics and disease resistance of five Carica papaya L. hybrid lines (with large fruits) was performed by using papaya variety Suizhonghong 48 as control. [Result]The hybrid line 200919 showed better average single fruit weight (1.60 kg) and yiel...