云南特色香蕉新品种主要农艺性状及产量比较

Analysis of Main Agronomic Characters and Yield of Yunnan Characteristics Banana

以红研二号、红研三号、巴西蕉为对照,观测了新选育的红研五号和滇蕉一号的农艺性状及产量。结果表明:香蕉产量与假茎高、假茎基部粗、果穗长、果指总数、果指长、果指粗6个农艺性状呈显著正相关;新选育的红研五号和滇蕉一号的株产较巴西蕉、红研三号高,较红研二号低;其中红研五号和滇蕉一号的单株产量较巴西蕉一造蕉分别增加12.2%、8.1%,二造蕉分别增加7.9%、5.7%,三造蕉分别增加4.8%、5.5%;红研五号和滇蕉一号一造蕉亩产分别为2.54、2.43 t,二造蕉亩产分别为2.89、2.67 t,三造蕉亩产分别为2.45、1.92 t。三造蕉以后所有品种收获率均严重下降,亩产减少幅度较大,建议收获第三造香蕉后更新植株。

‘Hongyan No.2’,‘Hongyan No.3’and‘Brazil banana’were used as control,the agronomic traits and yield of two new varieties‘Hongyan No.5’and‘Dianjiao No.1’were observed.The results showed that there were significant positive cor-relations between banana yield and six agronomic traits,included false stem height,false stem base diameter,ear length,total number of fruit fingers,fruit finger length and fruit finger diameter.The yield per plant of‘Hongyan No.5’and‘Dianjiao No.1’was higher than that of‘Brazil banana’,the first generation increased by 12.2%and 8.1%,the second generation increased by 7.9%and 5.7%,and the third generation increased by 4.8%and 5.5%.The yield per mu of‘Hongyan No.5’and‘Dianjiao No.1’were 2.54 and 2.43 t in the first generation respectively,2.89 and 2.67 t in the second generation,2.45 and 1.92 t in the third generation,which were higher than that of‘Brazil banana’.The yield per mu was the highest of second banana and then de-creased of third banana.After the third generation,the harvest rate decreased seriously and the yield per mu decreased greatly,it is suggested to renew after harvesting the third generation in this area.