natural hybrid 指野生植物不同的种间在自然条件下所产生的杂种，与人工杂交所产生的杂种相区别。
非常强健的自然杂交种 intermedia x rotundifolia
GS豫豆8号是用系谱法从郑74046品系与尖叶桥梁亲本自然杂交株的杂种后代中选育成的窄叶型大豆新品种。
GS Yudou 8 is a narrow-leafed soybean variety derived from the natural hybrid of Zheng 74046 line and a tip soybean parent material (paternal) with a pedigree selection method.
杂种优势作为自然界一种普遍的生物学现象，是提高作物产量的一种有效途径。
Heterosis as a common biological phenomenon in nature is an efficient approach to increase crop yield.
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