Early growth of selected indigenous tree species in response to watering regime

B. A. Olaoye, M. Oyun
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引用次数: 3

Abstract

: The research was carried out to investigate the early growth of selected indigenous tree species in response to watering regime. Four different tree species Terminalia ivorensis, Terminalia superba, Mansonia altissima and Cleistopholis patense were collected from Aponmu Forest in Ondo state, Nigeria The seeds were subjected to cold water pre-treatment for 24 hours before sowing as a means of breaking the seed dormancy. Upon removal, the pretreated seeds of the respective species were sown in polypots and distributed to the experimental treatments which include three levels of watering regime (daily, twice weekly and thrice weekly) and replicated thrice. The planted seeds were subsequently watered ones daily; twice weekly and thrice weekly for a period of 96 days. The seedlings growth parameters: seedling height, branchlets count and collar diameters were monitored and assessed for 96 days. The result obtained shows that watering twice weekly was best for Mansonia altisima and Cleistopholis patens seedlings while thrice watering was best for Terminalia ivorensis and Terminalia superba seedlings. It is therefore recommended that the seedlings of Terminalia ivorensis, Terminalia superba, Cleistopholis patens and Mansonia altisima may be effective for improving the physiological growth which can enhance the domestication and cultivation of these seedlings in the environment when watered with well water, subjected to full light intensity and watered twice or
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某些本地树种的早期生长对浇水制度的响应
研究了不同浇水条件下一些本地树种的早期生长情况。在尼日利亚Ondo州Aponmu森林采集了4种不同树种Terminalia ivorensis、Terminalia superba、Mansonia altissima和Cleistopholis patense,在播种前对种子进行了24小时的冷水预处理,以打破种子休眠。去除后,将各自物种的预处理种子播种在多盆中,并分配到实验处理中,实验处理包括三个水平的浇水制度(每天,每周两次和每周三次),并重复三次。种下的种子随后每天浇水;每周2次,每周3次,共96天。对幼苗生长参数:苗高、小枝数、树冠直径进行了96 d的监测和评价。结果表明,每周浇水2次对山楂苗和细穗苗效果最好,而每周浇水3次对毛刺苗和细穗苗效果最好。因此,建议在井水浇灌、充分光照、两次或两次浇水的环境下,对鸢尾、长尾、鸢尾和山楂幼苗的生理生长有一定的促进作用
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