Effect of nano, bio, chemical fertilization and leaves extract of moringa plant on flowering and chemical constituents of gladiolus plant

Abstract

Pot experiments were carried out during two successive seasons of 2018/2019 and 2019/2020 at the experimental farm of Horticulture Research Institute, Agricultural Research Center, Giza, Egypt to study the effect of different types of fertilizers, traditional NPK (t-NPK) at 2.0 g/pot, nano NPK (n-NPK) at 0.5 and 1.0 g/l, active dry yeast extract (ADYE) at 5.0 and 10.0 g/l, moringa leaves extract (MLE) at 5.0 and 10.0%, and some combinations (ADYE at 5.0 g/l + MLE at 5.0%, MLE at 10% + n-NPK at 1.0 g/l and ADYE at 10.0 g/l + n-NPK at 1.0 g/l) as well as untreated plants (control) on flowering and some chemical constituents of Gladiolus grandiflorus cv. Rose Suprem. The results showed that MLE at 10% produced the highest values for number of florets/spike and spike stem length (cm) followed by MLE at 10% + n-NPK at 1 g/l which gave the highest values in case of spike stem diameter (cm), flower diameter (cm), fresh and dry weights of cut spike (g). On the other hand, chemical constituents of chlorophyll a, b, carotenoids of fresh leaves (mg/g), N, P, K and total carbohydrates (%) were influenced by different fertilization treatments, the mastery in this concern was to application of MLE at 10% + n-NPK at 1 g/l. It could be recommended that application of Gladiolus grandiflorus cv. Rose Suprem by MLE at 10% + n-NPK at 1 g/l to get the best results regarding flowering and chemical constituents.

Effect of NPK nano fertilizer on vegetative, flowering, and content traits of Kalanchoe blossfeldiana

“…al., (2008) who reported that number of flowers was in consistence with leaves number under P treatments. The outcomes were also in compatible with Sarhan et. al.…”

“…Each of nano-NPK treatment (0.5 ,1 g L -1 ) was superior over treatments of traditional NPK and control in chlorophyll a, b, and carotenoids, and carbohydrates. The same nano treatment also recorded the higher percentages of N%, P%, K% compared to basic treatment or control (Sarhan et. al., 2022).…”

Impact of Some Bio-Stimulants on Performance of Zinnia Elegans Seedlings

“…It is noticed from the former studies that there are some plants gave similar results to obtained in this study when treated with yeast extract such as Vicia faba plant (Mady, 2009), Citrus aurantifolia (Mustafa et al, 2019), potato (Manea et al, 2019), Ocimum basilicum (Mohamed et al, 2022), Gladiolus grandiflorus (Sarhan et al, 2022). The improvement effect of the foliar application of yeast extract may be attributed to its bioregulator role in plants, affecting the balance of photosynthesis and photorespiration (Olaiya, 2010) and delaying the leaf senescence by reducing the degradation of chlorophyll, improving protein and RNA synthesis (Youssef et al, 2022).…”

“…The effect of yeast extract was reported also by Parađiković et al (2019) on some horticultural plant species. In this aspect, many studies showed that the enhancement effect of algae extract on macronutrient elements content (Tarraf et al, 2015), total sugars content (Hamouda et al, 2022).The similar results for the effect of yeast extract on macronutrient elements were obtained by many authors on (Mady, 2009;Mustafa et al, 2019;Manea et al, 2019;Sarhan et al, 2022 andYoussef et al, 2022).…”