Comprehensive evaluation of adaptability and nutritional quality of zuc-chini for open-field cultivation in Huangnan Tibetan area of Qinghai province
OUYANG Tianyu
DU Zhongping
FAN Luze
SUN Pengyuan
WEI Xiangcheng
REN Yanjing
Abstract：To screen suitable zucchini varieties for open-field cultivation in the Huangnan Tibetan area of Qinghai(with an average altitude of 2324.6 m),an adaptability evaluation was carried out on 15 introduced varieties.A total of 37 agro-nomic traits(18 quantitative traits and 19 qualitative traits)and 8 nutritional indicators were determined,and a comprehen-sive evaluation of the above traits and indicators was conducted by adopting correlation analysis,principal component analysis and membership function analysis.The results showed that the tested varieties had abundant genetic diversity(the coefficient of variation of the 37 indicators ranged from 0 to 1.02),and the cumulative contribution rate of the first seven principal components reached 80.53%.Four excellent varieties including Jingyuan,Mocui,Jingang and Huangdi were se-lected through comprehensive evaluation:Jingyuan had a melon transverse diameter of 14.08 cm and vitamin C content(b)of 4 370.37 nmol·g-1 in the flesh;Mocui had a yield per plant of 30.25 kg and a rate of female flower nodes of 79.05%;Jingang had a yield per plant of 30.48 kg and a total sugar content(w,the same below)of 18.68 mg·g-1 in the skin;Huangdi had a soluble protein content of 4.96 mg·g-1 in the flesh.These four varieties exhibited prominent perfor-mance in agronomic adaptability,yield and nutritional quality such as crude fiber and soluble protein,which can provide a scientific reference for the local high-yield and high-quality cultivation of zucchini.
Keywords：ZucchiniHigh cold regionNutritional qualityMembership function analysisComprehensive evaluation
Publication Date：2026-03-05
Online Publishing Date：2026-03-26(First online date of this platform, not the publication date of the document)
Pages：16( 133-148 )