Response of Night-Blooming Jessamine (Cestrum nocturnum L.) Plants to Phosphorus-Zinc Relation. 1-Growth, Flowering and Uptake of Phosphorous and Zinc. | ||||
| Assiut Journal of Agricultural Sciences | ||||
| Article 9, Volume 48, Issue 3, June 2017, Page 123-137 PDF (1.4 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ajas.2017.4527 | ||||
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| Abstract | ||||
| Night blooming jessamine (Cestrum nocturnum L.) plants were grown in pots to study P-Zn relations as the behavior of both P and Zn affecting the absorption of each other by the plant that reflect on growth and flowering. Phosphorus was applied to soil at rates of 0 to 560 ppm with addition of Zn at rates of 0 to 48 ppm. Greatest plant height, branch number, flowering (earliness and duration) and maximum dry weight accumulation in the different plant parts were occurred by the combination of 280 ppm P and 24 ppm Zn applied. In the absence of added P, shoot/root ratio was increased with increasing Zn level up to 24 ppm. Phosphorus at 70 and 560 ppm with Zn levels, this ratio was a nearly constant, while P at 140 and 280 ppm with low Zn level added, the ratio was decreased. Total uptake of P and Zn indicated that P and Zn fertilization had altered the uptake of both nutrients by the plant. Total uptake of P was increased by high P and low Zn. Total Zinc uptake varied opposite to that of P. The maximum of P and Zn were obtained by P280 Zn24 as the greatest growth and flowering occurred. | ||||
| Keywords | ||||
| Night-blooming jessamine; P applied; Zn applied; Growth and Flowering; P uptake; Zn uptake; P-Zn interaction | ||||
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