求翻译：为了研究不同种紫花苜蓿对播种密度的响应，在 5 个播种密度下对紫花苜蓿（Medicago sativa）的两个品种WL903和WL525的3个主要性状进行了研究。结果表明, 在不同播种密度下, 紫花苜蓿的出芽率、株高、2个性状随播种密度的增加而减少，而植株在生长发育中的死亡情况随着密度的增大而增大.从而可以得知不用播种密度对紫花苜蓿的影响.是什么意思？

In order to study different kinds of alfalfa planting density response in the five planting density of alfalfa (Medicago sativa), two varieties wl903 and wl525 the three main characters studied. Results show that different planting density, the budding rate of alfalfa, plant height, two traits decre

In order to study the different types of alfalfa seeding density response, one of the 5 seed density of alfalfa (Medicago sativa) of the two species WL WL 903 and 525 of the three main symptoms were studied. Results indicate that, in a different planting densities, alfalfa, insensitiveness, plant he

In order to study the different kind of alfalfa to the thickness of sowing response, under 5 thicknesses of sowing to alfalfa (Medicago sativa) two variety WL903 and the WL525 3 main characters have conducted the research.The result indicated that, under the different thickness of sowing, alfalfa's

In order to study different kinds of responses of alfalfa sowing density, in 5 of sowing density on alfalfa (Medicago sativa), two varieties of WL903 study and WL525 of the 3 main characters. Results show that under different sowing densities, sprouting rate of alfalfa, plant height, 2 characters wi

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