幼苗徒长程度对黄瓜植株生长发育及产量品质的影响

Effects of Different Leggy Extent Seedlings on Cucumber Growth,Yield and Quality

以华北型黄瓜品种津春4号和欧洲温室型黄瓜品种戴多星为试材,采用遮光处理获得不同徒长程度的黄瓜幼苗,研究了幼苗徒长程度对黄瓜植株生长发育及果实产量和品质的影响。结果表明:在遮光条件下,黄瓜幼苗发生不同程度徒长,定植后对植株生长发育和果实产量品质影响显著。徒长苗株高和下胚轴长显著高于对照苗,茎粗、叶面积、干质量、干物质含量以及根冠比和壮苗指数均显著低于对照苗。定植后,植株株高、茎粗、叶片数和叶面积仍与对照苗差异显著。与对照苗相比,徒长苗初花期延后,第1雌花节位升高,平均单株结果数、单果质量、单株产量和前期产量均显著下降,果实可溶性固形物、可溶性糖、可溶性蛋白和VC含量也显著降低。说明黄瓜徒长苗定植后对植株生长发育和果实产量与品质有显著的不利影响。

Using 2 different ecotypes of cucumber(Cucumis sativus L.)variety Jinchun No.4 and Daiduoxing as materials to obtain a couple of cucumber seedlings with different leggy extent by shading,the effects of seedlings leggy extent on cucumber plant growth,fruit yield and quality were studied.The results showed that different degrees of cucumber seedlings leggy growth occurred under shading conditions,and planting had significant impact on plant growth,fruit yield and quality.The plant height and hypocotyl length...