n Bestudering van die fitotoksiese eienskappe van koringstrooi en die invloed daarvan op die opkoms, vegetatiewe ontwikkeling en opbrengs van koring (Triticum aestivum) by Raath, Neville Clifford

Subjects: “…Plant growth inhibiting substances…”
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The significance of auxins and growth inhibiting substances in relation to dormancy of the potato tuber and the peach tree by Blommaert, K. L. J

Subjects: “…Plant growth inhibiting substances…”
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Characterisation of soda lignins as raw materials soil improving materials by Ngqebane, Ayanda

Subjects: “…Plant growth inhibiting substances…”
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