密刺类黄瓜不同品种果实性状的研究

STUDIES ON FRUIT CHARACTERS OF VARIOUS VARIETIES OF SPINE TYPE CUCUMBER

对70个密刺类黄瓜品种的果实性状进行了研究。正态分布测验表明，单果重、果长、把长、把瓜比分别符合正态分布N（0．206，0．01735^2）、N（32．8，2．60^2）、N（6．15，0．767^2）、N（0．188，0．0226^2），四者的变化范围为0．170～0．260kg、26．8～39．3cm、4．57～8．17cm、0．13～0．25。果长、把长、把瓜比三者相关性显著，而与单果重相关性不显著。对果长和单果重进行聚类分析，按聚类距离2．6计，可将70个黄瓜品种划分为6种类型：短轻型果、短重型果、中长轻型果、中长重型果、长轻型果、长重型果。

The fruit characters of seventy spine type cucumber varieties were studied. By exploring analysis and testing of normality for single fruit weight, fruit length, fruit neck length and the ratio of fruit neck to fruit , each of which accorded with normal distribution N （ 0. 206,0. 01735^2 ）, N （ 32.8,2.60^2 ）, N （ 6.15,0. 767^2 ）, N （ 0. 188,0. 0226^2 ）. The ranges of single fruit weight were 0. 170 - 0. 260 kg , fruit length were 26.8 - 39.3 cm , fruit neck length were 4.57 -8.17 cm , the ratio of fruit neck to fruit were 0.13 -0.25 . The correlation of fruit length , fruit neck length and the ratio of fruit neck to fruit were significant , each of which was not significantly correlated with single fruit weight . Through cluster analysis for fruit length and single fruit weight of the seventy cucumber varieties, they could be classified into six types ： short fruit with light fruit , short fruit with weight fruit , middle fruit with light fruit , middle fruit with weight fruit , long fruit with light fruit , long fruit with weight fruit .