This study was carried out in the nursery of the Ornamental Plant Research Department, Horticulture Research Institute, Giza, Egypt during the period from February to November of the two successive seasons of 2009 and 2010. A factorial experiment, in a randomized complete block design (RCBD), with three replicates, was conducted, to investigate the effects of different watering regimes (irrigation with 300, 450 and 600 cm 3 /pot/week) comprising the main plot and potting media (peat moss, water hyacinth compost, rice hulls compost, date palm leaf compost and a mixture of the four components at equal volume parts) representing the sub-plots on Ficus nitida "Hawaii" plants grown in 25 cm dia. plastic pots. Results show that performance of plants grown in the mixed compost and watered with 450 cm 3 /pot/week was the best in all characters studied, followed by plants grown in the same medium and watered with either 600 cm 3 /pot/week (in the second position) or with 300 cm 3 /pot/week (in the third one). Performance of plants grown in rice hulls compost and watered with 450 cm 3 /pot/week came in the fourth rank, followed by those grown in peat moss and watered either with 450 or 600 cm 3 /pot/week, occupying the fifth position in this concern. In contrast, plants grown in date palm leaf compost and watered with 300 cm 3 /pot/week scored the lowest records in almost all parameters studied, preceded by those grown in the same medium and watered either with 450 or 600 cm 3 /pot/week.
This work was carried out in the Tissue Culture Egypt from the period elapsed from 2014 to 2016 to study the effect of sterilization on propagation of Phytolacca dioica, L.. Results of this study could be briefed in the following outlines: Chlorox concentrations at 30 or 35 % gave the highest survival percentage of Phytolacca dioica, L.. In addition, soaking explants in the sterilant solution for 20 or 25 minutes resulted in the highest survival percentage. Similarly, the interaction treatment demonstrated that using chlorox at 35% for 25 minutes resulted in the highest survival%. In the multiplication stage it was found that using BAP at 10 ppm resulted in the highest number of shoots and leaves. BAP at 6 or 8 ppm induced the highest content of total chlorophyll. The longest shoots were a result of applying BAP at 3 ppm. Inoculating explants on half strength medium resulted in the highest values of number of shoots and leaves, as well as highest contents of total chlorophyll and carotenoids. MS medium at 3 quarters strength shared in the first position of number of leaves. The longest shoots were a result of using MS medium at full strength. The interaction between BAP levels and MS medium strength, indicated that using MS medium at half strength supplemented with BAP at 10 ppm produced highest number of shoots. The same medium strength with BAP at 8 or 6 ppm gave the highest contents of total chlorophyll and carotenoids. MS medium at 3 quarters strength combined with PAP at 10 ppm gave highest number of shoots and leaves. MS medium at full strength plus BAP at either 3 or 10 ppm resulted in the highest shoot length and number of leaves.
This study was carried out at the nursery of Horticulture Research Institute, Giza, Egypt in the two seasons, 2016 and 2017, aiming to investigate the effect of salicylic acid at different level (0, 0.5, and 1.0 g/l) with different levels of field capacity (25,50,75 and 100%) on growth and chemical constituents of Taxodium distichum and also to reduce the amount of water needed for irrigation. Main results of this study could be summarized as follows: The highest value was achieved by the following treatments: salicylic acid at 0 g/l with100% of field capacity level (concerning root fresh and dry weights); salicylic acid at 0.5 g/l with 75% of field capacity level (for plant height, branch number, shoot dry weight, root fresh and dry weights); salicylic acid at 0.5 g/l with 100% of field capacity level (regarding plant height, branch number and root length); salicylic acid at1.0 g/l with 75% of field capacity level (for plant height, root length and root fresh weight); and salicylic acid at 1.0 g/l with 100% of field capacity level (for shoot fresh weight, total carbohydrate and total chlorophyll). The lowest value was obtained by the following treatments: salicylic acid 0 g/l with 25% of field capacity level (for plant height, branch number, shoot fresh and dry weights, root fresh weight, total carbohydrate and total chlorophyll); salicylic acid at 0 g/l with 50% of field capacity level (for plant height and shoot dry weight); salicylic acid at 0.5 g/l with 25% of field capacity level and salicylic acid at 0.5 g/l with 50% of field capacity level (for root fresh weight); salicylic acid at 0.5 g/l with 100% of field capacity level (for root dry weight); salicylic acid at 1.0 g/l with 25% of field capacity level (for root length and shoot dry weight); and salicylic acid at 1.0 g/l with 50% of field capacity level (for shoot dry weight). It is recommended to treat plants with salicylic acid at 0.5 g/l and to apply irrigation at 75% of field capacity level capacity to obtain the highest values of plant height, branch number, shoot dry weight, root fresh and dry weights. This will also save as much water as 25% of field capacity level.
during the period from 2015 to 2017, to investigate the effect of cytokinin type and concentration (BAP, 2-iP and kin, at either 0.0, 1.0, 2.0 and 3.0 ppm) as well as medium type (MS or B5) on micro-shoots multiplication of in vitro cultured rare ornamental plant, Vangueria edulis.
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.