<p>Global climate exchange especially rainfallspurs the growth of oil palm adapt to environmental conditions, so the development of oil palm plantations requires seeds that are able to adapt well in drought conditions.This study aims to determine whether water stress affects the growth of oil palm seedlings and sees the response of the level of resistance of oil palm seeds to drought stress.This research was carried out in the greenhouse garden experiment Medan STIPAP was conducted from January to June 2018. This study used Non-factorial Randomized Block Design (RBD), which consisted of 3 levels, 3 samples and 3 replications. Parameters to be observed were plant height, stem base diameter, leaf number, root wet weight, root dry weight, plant wet weight, plant dry weight, root volume, root length, stomatal density and number of stomata.The results showed that the difference in giving A1 water (100%) was significantly different from A2 (60%) and A3 (20%) on the parameters of oil palm seedling growth especially for the parameters of plant height, root wet weight, root dry weight, plant wet weight, plant dry weight, root volume, and root length while the base diameter of the stem, number of leaves, stomatal density and number of stomata give no significant effect. Drought stress effected to reduce the growth of stem diameter.</p>
The cultivation of wheat in Indonesia especially at medium-low altitude faces problems such as high temperatures whicheffect negativelyon the yield. The aims of this research was to obtain informations on performance PENDAHULUANGandum (Triticum aestivum L.) merupakan tanaman alloheksaploid yang berasal dari daerah subtropis. Menurut Nur (2013) pengembangan gandum di Indonesia selama ini diarahkan pada dataran tinggi dengan ketinggian > 800 m di atas permukaan laut (dpl) dengan suhu sekitar 22-24 o C. Apabila gandum dibudidayakan di dataran tinggi maka akan bersaing dengan komoditas sayuran dan tanaman hortikultura.Terbatasnya jumlah varietas gandum yang mampu beradaptasi dengan baik di dataran tinggi Indonesia juga merupakan kendala dalam usaha produksi gandum sehingga upaya untuk menghasilkan varietas gandum masih diperlukan. Sejauh ini, Indonesia telah memiliki tiga
Ganoderma boninense is a pathogen that can attack palm oil plants. This fungus can cause death, causing a decrease in the number of stands and palm oil production. One alternative to control Ganoderma boninense in palm oil is using the biological agent; ‘Trichoderma harzianum’. This research aimed to examine the inhibition of T. harzianum in various media on different spear leaves accumulations on G. boninense in palm oil plants. The research was arranged in a factorial randomized block design. The first factor was T. harzianum application with different media, the second factor was the accumulation of spear leaves on palm oil trees. The data from the observations were analyzed using the analysis of variance, followed by the DMRT at 5% level. The results of statistical tests showed that the application of T. harzianum in various media had no significant effect on the number of spear leaves at 1.5 months after application (MAA) and G. boninense mycelium at 3 MAA, but had a significant effect on the number of spear leaves at 3 MAA, G. boninense mycelium at 1.5 MAA, T. harzianum mycelium at 1.5 and 3 MAA and also significantly affected the root length at 1.5 and 3 MAA. The accumulation of spear leaves significantly affected at 1.5 and 3 MAA but had no significant effect on the observation of G.boninense mycelium, T. harzianum mycelium and the root lengths at 1.5 and 3 MAA. The interaction between T. harzianum in various media and the accumulation of spear leaves had a significant effect on decreasing the number of spear leaves at 1.5 MAA but had no significant effect on G. boninense mycelium, T. harzianum mycelium and the root lengths at 1.5 and 3 MAA. The application of T. harzianum, which was cultured in various media, was able to reduce the accumulation of spear leaves after 3 months of application. The lowest number of spear leaves was found in T. harzianum application with 25% OPEFB + 75% cow dung compost. The best of T. harzianum media in stimulating palm oil’s root growth was 50% OPEFB + 50% cow dung compost.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.