Variability studies on 92 wild apricot (Prunus armeniaca L.) genotypes growing in Himachal Pradesh, India were carried out during 2015–2017. The aim was to determine genetic relatedness amongst the genotypes and to identify characters influencing yield for effective genetic improvement in apricot. All the genotypes exhibited a great deal of variation for most of the characters studied and fell into two broad clusters further divided into 11 sub-clusters. Higher genotypic and phenotypic coefficient of variation was observed for sugar-acid ratio, stone weight, pulp to stone ratio, titratable acidity, reducing sugar and trunk girth. High heritability with high genetic gain was recorded in trunk girth, reducing sugars, titratable acidity and stone weight. High heritability with moderate genetic gain was recorded for yield, non-reducing sugars, total sugars and fruit weight. Several characters namely reducing sugars, trunk girth, TSS, fruit weight, stone breadth, non-reducing sugars, leaf area, stone weight, stone length and sugar/acid ratio had direct positive effect on fruit yield suggesting their use as selection indices for affecting genetic improvement in apricot.

92种野生杏（李属杏）的变异性研究L.）在印度喜马growing尔邦生长的基因型于2015–2017年期间进行。目的是确定基因型之间的遗传相关性，并确定影响产量的性状，以实现杏的有效遗传改良。在研究的大多数字符中，所有基因型均表现出很大的变异性，并分为两个广泛的簇，进一步分为11个亚簇。观察到较高的基因型和表型变异系数，包括糖酸比，石头重量，果肉与石头比，可滴定酸度，还原糖和树干周长。在躯干周长中记录了高遗传力和高遗传增益，减少了糖分，可滴定的酸度和结石重量。记录了产量，非还原糖，总糖和果实重量的高遗传力和中等遗传增益。