Study on arrangement of pollination varieties for dominant Macadamia variety Own Chioce
To determine the optimal pollination cultivars for leading Macadamia variety Own Chioce(O.C)in Macadamia orchards,with O.C as the maternal plant and other eight varieties as the paternal plants including HAES863,D,D4,HAES816,HAES906,HAES294,HAES900 and A4,nut set rate of racemes,the degree index of cross incompatibility,the number of nut set per inflorescence and infructescence,abscission rate and transverse diameter of shell nuts of different pollination treatments were analyzed.The results indicated that the hybrid affinities between males HAES863,D,D4,HAES816,HAES906 and female O.C were stronger than those between males A4,HAES294,HAES900 and female O.C according to the index of cross incompatibility based on nut set rate and nut set rate of racemes.There was a positive correlation between nut set rate and nut set rate of racemes.It was inferred that nut set rate of racemes could be used to replace nut set rate as an essential index to evaluate the degree of cross-compatibility between maternal O.C and different paternal varieties.The average nut set rate of racemes of the eight hybrid combinations was 40.6％,which could be used to determine the degree of cross incompatibility between the maternal O.C and any male parents.Based on the comprehensive analysis of the degree of hybridization affinity between the dominant variety O.C of macadamia and 8 male parents,combined with the flowering phenology of O.C,varieties HAES863 and D4 were selected as the optimal male parents for O.C.According to the local microclimate,D,HAES906 and HAES816 were the optional male parents for planting with O.C.
MacadamiaOwn Choicevarieties of pollinationnut set ratenut set rate of racemescross incompatibility
万方数据
维普
