- BB
Tác giả: Mounir, Amr M.; Người hướng dẫn: -; Người tham gia: El-Hefny, A. M.; El-Tanahy, A. M. M.; Mahmoud, S. H. (2022) - Vegetative characteristics
Data presented in Table 2 show the effect of different low doses of gamma irradiation on growth characters of Jerusalem artichoke plants, and from the obtained results, it could be concluded that there was significant difference among different doses and 5 Gy of gamma irradiation scored the tallest plant, the highest number of branches, shoot fresh and dry weight as well as leaf area per plant compared to others doses during the two successive seasons, followed insignificantly by both irradiation doses 2.5 and 10 Gy. It was shown that all irradiation doses caused a remarkable amelioration of plant vegetative growth parameters compared to un-irradiated tubers.
|
- BB
Tác giả: Sadak, M.S.; Người hướng dẫn: -; Người tham gia: - (2019) - Foliar application of AgNPs with different concentrations (20, 40, and 60 mg/l) improved the growth parameters of fenugreek plant (e.g., shoot length, number of leaves/plant, and shoot dry weight) and increased some biochemical aspects such as photosynthetic pigment (chlorophyll a, chlorophyll b, and carotenoids) and indole acetic acid (IAA) contents thus enhanced the yield quantity (number of pods/plant, number of seeds/pod, weight of seeds/plant, and seed index) and quality (carbohydrate%, protein%, phenolics, flavonoids, and tannins contents) of the yielded seeds as well as increasing antioxidant activity of the yielded seeds.
|
- BB
Tác giả: Moustafa, A. R.; Người hướng dẫn: -; Người tham gia: Abdel-Hamid, N.; Abd El-Hamid, A.; El-Sonbaty, M. R.; Abd El-Naby, S. K. M. (2019) - The present results indicated that strand thinning by removing 30% of the total number of strands gave the lowest bunch weight and yield per palm compared to thinning 15% and control treatments during the two seasons of study. Also, removing 30% of the total number of strands improved some physical properties, i.e., fruit weight, flesh weight, fruit length, and fruit diameter than control in both seasons. All strand thinning treatments improved some chemical properties such as TSS %, total sugars %, and reducing sugars % than control (without thinning). However, both 15 and 30% strand thinning treatments had no significant effect on nonreducing sugars %, total acidity %, and tannins content in the two studied seasons.
|
- BB
Tác giả: Sadak, Mervat Sh.; Người hướng dẫn: -; Người tham gia: Abd El-Hameid, Asmaa R.; Zaki, Faten S. A.; Dawood, Mona G.; El-Awadi, Mohamed E. (2020) - Cysteine treatments could alleviate the adverse effect of salinity stress on growth and yield of soybean plant through increasing photosynthetic pigments; proline content; N, P, and K contents; superoxide dismutase and catalase activities; and oil% accompanied by decreases in H2O2 and MDA contents as compared with their corresponding controls. In addition, cysteine treatments and/or salinity stress exhibited differences in protein pattern from 112 to 19 kD molecular weight. The appearance of new protein bands reflected the expression of cysteine treatments and salinity stress.
|
- BB
Tác giả: Jiku, Md. Abu Sayem; Người hướng dẫn: -; Người tham gia: Alimuzzaman, Md.; Singha, Ashutus; Rahaman, Md. Arifur; Ganapati, Ratan Kumar; Alam, Md. Ashraful; Sinha, Shata Rupa (2020) - In this study, six levels of K viz. 0, 100, 125, 150, 175, 200, 250 kg ha−1 were used as treatments. All the parameters, i.e., plant height, number of leaves plant−1, fresh and dry weights of leaves (g plant−1), fresh and dry weights of bulb (g plant−1), bulb diameter, and number of cloves bulb−1 significantly varied due to different doses of K application. The maximum total yield and size of garlic bulb were obtained with potassium application at 200 kg ha−1. Potassium at 200 kg ha−1 produced the highest fresh and dry weights of bulbs and leaves, diameter, moisture content, number of cloves, and yield as compared to the other treatments. The uptake of nutrients like N, P, K, S, Ca, Mg, B, and Na significantly varied due to the application of different doses of K. The highest conten...
|
- BB
Tác giả: Hassan, Nagwa M. K.; Người hướng dẫn: -; Người tham gia: Marzouk, Neama M.; Fawzy, Zakaria F.; Saleh, Said A. (2020) - The results showed that American cassava cultivar recorded the highest vegetative growth characters (plant height, leaves number, main stems, lateral branches, leaf area, and chlorophyll content), tuber yield (number and weight), and tuber quality (length, diameter, dry matter, and tubers-shoots ratio) as well as chemical composition (starch, total carbohydrates, N, P, and K). The foliar application of glutamine at the rate of 200 mg/L increased vegetative growth characters and tuber yield as well as tuber quality and improved chemical contents of cassava tubers. On the contrary, the lowest values of cassava growth and its productivity as well as chemical composition were associated to Brazilian cultivar when foliar sprayed by yeast at the concentration of 2 g/L.
|
- BB
Tác giả: Hozayn, M.; Người hướng dẫn: -; Người tham gia: Abd-Elmonem, A. A.; Samaha, Ghada M. (2020) - The results revealed that the pre-soaking in tryptophan treatments (2.5 mM) were the most effective treatments under different salinity levels and caused significant increases in all tested parameters of this study. Moreover, increasing salinity levels decreased significantly the root purity parameters and increased impurity parameters of sugar beet. The DS-9004 cultivar gave the highest values of all studied parameters compared with the LP-15 cultivar under different salinity levels with tryptophan (2.5 mM). Chlorophyll a content and chlorophyll a/b ratio, as well as carotenoids content, were highest in DS-9004 cultivar, while chlorophyll b content was highest in LP-15 cultivar at 75 days.
|
- BB
Tác giả: Abd El-Razek, E.; Người hướng dẫn: -; Người tham gia: Haggag, Laila F.; El-Hady, Eman S.; Shahin, M. F. M. (2020) - The result showed that all treatments improve the nutrient status (N, P, K, Ca, Mg, Fe, Zn, Mn, Cu) of the leaves, yield (kg/tree) and fruit quality, i.e., fruit weight, volume, specific gravity, dimension, and shape index, as well as fruit moisture content percentage and oil percentage in FW and DW than the control. Within all treatments, the bio-humic treatment (T4) is recommended, since it had the highest value of these parameters in comparison with the other treatments or control.
|
- BB
Tác giả: Wali, Asal M.; Người hướng dẫn: -; Người tham gia: Kenawey, M. K.; Ibrahim, O. M.; Lateef, E. M. Abd El (2022) - Introducing new crops to reduce the nutritional gap in Egypt is an important target. One of these crops is Quinoa which is characterized by high nutritional value with multiple food uses. However, it will compete with other winter crops, so it is candidate to grow in marginal lands like calcareous soils. Meanwhile, planting density and N requirements are not known under such conditions; therefore, this work was undertaken in calcareous soil Caco3 > 50%.
|
- BB
Tác giả: El-Migeed, M. M. M. Abd; Người hướng dẫn: -; Người tham gia: El-Razek, E. Abd; Ali, Hassan A. M.; Abdel-Hamid. N. (2022) - The current experiment was done during the 2018 and 2019 seasons on ‘Ewais’ mango trees (Mangifera indica) grown in Research Station, El-Nubaria district, Egypt, to study the impact of spraying ammonium nitrate (NH4NO3) and irrigation time on vegetative growth, yield and fruit quality. All experimental plants have been received the same care, i.e. control of pests & weeds, fertilization, and irrigation until the 1st week of October. The irrigation was adapted to apply 5m3/feddan (4200 m2)/week to control leaves damage due to low temperature after this period and the treatments included: (T1) Water spraying at 1st week of November + start normal irrigation program at the same time after four weeks of adapted irrigation as 5m3/feddan (4200 m2)/week (Control)...
|
