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在果树育种过程中,对杂种实生苗的早期鉴定与预选,早已为育种者所关注。Luther Burbank与I.V.Michurin很重视这项研究工作,提出了一些树种在形态特征方面的相关指标,但多限于经验。随着科学的进展,不少育种工作者从生物学、解剖学、生理、生化等方面进行了预选研究。在木量杂种实生苗中。根据形态特征的相关进行预选,比较切实可行。Brown(1975)指出,所有的相关与预选,必须达到下列两点要求:(1)相关程度必须很高;(2)
In the process of fruit tree breeding, early identification and preselection of hybrid seedlings have long been of interest to breeders. Luther Burbank and I.V.Michurin attach great importance to this research work, and put forward some relevant indicators of morphological characteristics of tree species, but are limited to experience. With the progress of science, many breeders have conducted pre-selection studies in biology, anatomy, physiology and biochemistry. In the woody hybrid seedlings. According to the morphological characteristics of the pre-selection, more practical. Brown (1975) pointed out that all relevant and pre-selection must meet the following two requirements: (1) the degree of correlation must be high; (2)