Correlation and Path Analysis About Yield Component Factors of Seed-used Pumpkin (Cucurbita pepo L.)(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Correlation and Path Analysis About Yield Component Factors of Seed-used Pumpkin (Cucurbita pepo L.)

Author(s):: WANG Ping¹; ZHANG Yan¹; BAI Li-hua²; LIU Jie-cai¹; YANG Wen-xiu¹; 1.College of Agronomy,Inner Mongolia Agricultural University，Key Laboratory of Wild Peculiar Vegetable Germplasm Resource and Germplasm Enhancement of Inner Mongolia Autonomous Region，Huhhot，Inner Mongolia 010019;
2.Inner Mongolia Bayannaoer Academy of Agricultural Science，Bayannaoer，Inner Mongolia 015400

Abstract:: 125 seed-used pumpkin cultivated species (Cucurbita pepo L.) were used as the materials,the correlation，path and regression analysis were made between seed yield of single fruit and eight yield factors including length of fruit,width of fruit,weight of single fruit，seeds of single fruit,seed length,seed width,seed thickness and 100-seed weight.The results showed that most of yield factors was very closely related each other，but through further path analysis，it found that only seeds of single fruit and 100-seed weight played the directly influence on seed yield of single fruit,other factors just existed the indirect effect on seed yield singler fruit through the above two major factors.When other yield factors remained the average level，it was effective to increase the seed yield of single fruit by adding seeds of single fruit,100-seed weight and weight of single fruit;the relationship between the fruit shape index and seed yield of single fruit was that seed yield of single fruit showed firstly increased and then decreased with increasing fruit shape index，and when the fruit shape index was 3.2，seed yield of single fruit reached the most.

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Last Update: 2014-08-31