灰色关联度对腰果新品种的综合评估

对选育的11个腰果(Annacardium occidentale L，)品种从产量、品质、花期和果实形态等16个性状应用灰色关联度分析法进行综合评估。结果表明：GA-63和FL-30的关联度大，与参考品种最接近，综合性状表现优，具有产量高、品质优、雌花比例高、着果率和成果率高等特点：同时，FL-30还具有坚果大、果仁大的特点：GA-63也具有出仁率高、早熟等特点。GA-51的关联度小，综合性状表现最差，其余各参试品种综合性状经加权后，由好到差的排序为CP-63-36、HL-2-21、HL-2-13、CP-6-15、B-1、HL-7-23、CP-5-Ⅱ、HL-6-23。结果分析指出，灰色关联度综合评估排序结果是符合各品种的客观实际的。

Comprehensive Evaluation of Some New Cashew (Annacardium occidentale L.) Varieties by Using the Grey Relation Degree

Eleven cultivars of cashew (4 nnacardium occidentals L.) varieties were evaluated by using the relation degree of grey system theory. They were analyzed in terms of 16 traits including yield, flowering phase, quality and cashew nut characters. The comprehensive evaluation results showed that FL-30 ranked first: high yield, big nut, good-quality, high percentage of perfect flowers and high fruit-setting percentage . GA-63 ranked second: early maturing, high yield, good-quality, high fruit-setting ratio and high percentage of kernel recovery. The weighted relation degree of other tested varieties was ranked in the order of CP-63-36 > HL-2-21 > HL-2-13 > GP-6-15 > B-l > HL-7-23 > CP-5-11 > HL-6-23 > GA-51.The unweighted relation degree was in the order: GA-63 > FL-30 > CP-63-36 > HL-2-13> B-l> HL-2-21> HL-7-23 > CP-5-11 > HL-6-23 > GA-51. These ranking orders by the grey relation degree are tally with the actual observations.