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.
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。
These clay minerals mainly come from parent material, a few from pedogenic processes, and dust input is minute.
它们主要来源于母质，其次来自成土过程，降尘输入量极有限。
Horizon C is relatively unweathered parent material form which the mineral components of the above layers are derived.
C 水平层是相对未风化的母质土，其它层的矿物都源于此。
Under the same parent material condition, urease activity was significantly correlated with forming time and maturity of soil.
在母质相同的情况下，脲酶活性高低又与成土时间的长短和土壤熟化程度呈正相关。
The variety of cotton with the later diseased time and the lower disease developing speed was the ideal parent material of disease-resisted breeding.
在抗病育种中，发病时间晚和发病速度慢的品种（系）是较为理想的抗病亲本。
The results showed that the principal factors affecting the metal background contents were landforms for plain area and soil parent material for mountain area.
分析结果表明，影响土壤元素背景值的主要因素，在平原地区是地貌条件，在山区是成土母质。
Tensile and microhardness tests show that the quality of joint is better and tensile strength of joint does not decrease greatly compared with that of parent material;
拉伸实验和显微硬度测试表明，接头质量良好，与母材强度相比，接头的抗拉强度未见有大幅度下降；
The contents and profile distributions of total Mn and available Mn of the dryland soil and paddy soil derived from the identical parent material were remarkably different.
同一母质发育的旱地土壤和水田土壤的全锰和有效锰含量在土壤剖面中的分布明显不同。
Parent material of Suining group is easy eroded, and the erosion material is of poor cohesion and structure and even easier being eroded by runoff.
遂宁组母质易风化，风化后的碎屑黏聚力弱、结构力差，易遭受径流侵蚀。
Parent material of Suining group is easy eroded, and the erosion material is of poor cohesion and structure and even easier being eroded by runoff.
遂宁组母质易风化，风化后的碎屑黏聚力弱、结构力差，易遭受径流侵蚀。
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