Evaluation on the Adaptability of 10 Pecan Lines Introduced into Huangdao District
CUI Chenggang
ZHAO Dengchao
YANG Lin
Liang Yan
SHU Xiuge
HOU Liqun
YANG Lei
YAO Yuzhang
Abstract：Ten excellent strains of Carya illinoensis,such as Pawnee(Boni),YLC10 and YLC21,were used as test materials,and the introduction adaptability of Carya illinoensis was evaluated in Qingdao,Shandong Province.The results showed that Carya illinoensis generally grew well in the west coast new district of Qingdao,and there were obvious differences in tree growth,fruit bearing and fruit characters among different strains(species).The membership function method was used to comprehensively analyze and evaluate the growth vigor of YLC29,YLC13,YLC12 and YLC21,with obvious apical dominance,straight trunk and fast thickening.The height of 7-year-old trees was 7.77 m,7.70 m,8.03m and 7.30m respectively,and the basal diameters were 19.0 cm,17.83 cm,17.33cm and 18.0 cm,respectively.Pawnee,YLJ42,YLC21,YLC23 and YLC13 have good results,which are characterized by more fruits and excellent nut quality.The average yield of nuts per plant is 1.82 kg,0.50 kg,0.92 kg,0.32 kg and 0.29 kg respectively,and the contents of nut fat and protein are 74.60％,68.4％and 71.0 respectively.According to comprehensive evaluation and analysis,Pawnee,YLJ42 and YLC23 are better fruit varieties,YLC21 and YLC13 are both fruit and timber varieties,and YLC29 and YLC12 are better ecological reserve varieties.
Keywords：pecanexcellent systemintroduction and cultivationcomparative testevaluate
Publication Date：2024-12-28
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 31-36 )