扁桃品种花和果实特性的引种调查研究

通过对新疆引进Nonpareil、Sonora、Mission、Thompson、Ne pulus ltera 和Butte 6个扁桃品种花和果实特性进行对比试验.结果表明:引进的6个品种开花期要比新疆当地品种晚7～9 d,成熟期晚1～2月,6个品种的完全花比例、坐果率高于当地品种,并且Nonpareil、Sonora和Thompson有一定的自花结实能力,生理落果率除品种因素外还和果实间的营养竞争剧烈有关.6个品种中,Nonpareil和Ne pulusu ltera最为丰产,平均株产分别达2.1 kg和2.2 kg;落花后至5月上、中旬为扁桃幼果迅速增长期, 占总生长量的90%左右,在扁桃的生产中加强这一时期肥水管理,对促进果实和种子生长至关重要;Nonpareil平均种仁最大达1.346 g,出仁率最高达78.31%,且壳薄,种子和种仁大小整齐,双仁率低,商品价值最高.

The Research on Flower and Fruit Characteristics of Introducted Almond Varieties of Xinjiang

The comparison of six types of almond: Nonpareil,Sonora,Mission,Thompson,Ne pulus ltera and Butte follows the results that:The initial period of blossom of the introduced almonds was seven to nigh days later than local genres and the start of mature period was one to two months later,however,they possess a higher proportion of complete flower and a higher rates of fruit Setting than local counterparts,particularly,the Nonpareil,Sonora and Thompson had the ability of self-fertilize to some degree and their n...