A field experiment was conducted during the two successive seasons of 2018/2019 and 2019/2020 at the experimental farm of Horticultural Research Station at Sides, Beni-Suef Governorate to improve the growth, productivity and seed oil yield of black cumin plants to foliar application with α-tochopherol (vitamin E), amino acids (Aminoactal) and moringa leaf extract (MLE). Obtained results revealed that the best vegetative growth criteria (Plant height, stem diameter, number of main branches and plant weight at harvest), yield parameters (number of capsules per plant, and seeds yield per plant and per fed.), oil determinations characters (volatile and fixed oil percentages and oil yield /plant and /fed.) and chemical properties such as photosynthetic pigments, herb percentages of N, P and K, free fatty acid contents, iodine and saponification values were obtained due to foliar spray of the high dose of moringa extract at 5 ml/ l then amino acids 2ml/ l and α-tochopherol (vitamin E) at 100 ppm and with no significant differences being detected between such three concentration of the stimulants treatments. There for, it could be recommended that spraying Nigella sativa L. plants with the high concentration of moringa leaf extract (5 ml/ l) to enhance growth, seeds yield / plant and /feddan and fixed oil components under the same environmental conditions.

wo field experiments were conducted to evaluate the efficacy of different garlic treatments against basal stem rot, root rot and broomrape of geranium and its productivity at the Exp. Farm of Sids Hort. Res. Stat., Agric. Res. Center, Beni-Sweif governorate during 2016 and 2017 growing seasons. It was observed that using garlic as intercropping with geranium, soil amendment in addition to spraying garlic extract effectively controlled basal stem and root rot as well as decreased the infection by broomrape. These treatments enhanced plant growth, oil and its chemical composition, where, intercropping of garlic with geranium plants as a treatment gave the highest mean values of oil (%) and oil yield (kg/fed.), respectively for the two plant cuts followed by soil amendment with garlic and spraying geranium plants with garlic extract.

Two field experiments were carried out during 2016/2017 and 2017/2018 winter seasons at Sids Horticultural Research Farm, Egypt, to evaluate the efficacy of eleven weed control treatments on weeds and coriander productivity with monitoring chemically herbicidal residues by HPLC in both soil and coriander seeds in randomized complete block design with four replicates. The results show that coriander seed yield losses due to weed competition varied from 56.6-55.5 percent through the course of this study. Hand hoeing thrice, black polyethylene mulch, rice straw mulch and Stomp extra at 1.7 l/feddan treatments gave 91-96 percent of weed control accompanied with coriander increases seed yield varied from 200.9-230.5 percent than unweeded check. Such increases in seed yield per feddan are positively correlated with various studied yield components and negatively with various studied weed categories emphasizing the need of good weed control program in coriander crop production with less herbicide residues, which determined by HPLC in both soil and seed coriander were below than the maximum residue allowable level expect with Ultra afalon at 1.0 l/fed. in the soil. Economic evaluation, showed that seed yield of coriander is a profitable enterprise for coriander growers by using hand hoeing thrice or Stomp extra or black polyethylene mulch and rice straw mulch treatments which can be recommended as good and clean alternatives for weed control in coriander crop.

ield experiments were carried out under natural infection of Septoria leaf spot in the Experimental Farm of Sids Agricultural Research Station, Agric. Res. Center, Beni-Sweif governorate in 2015/2016 and 2016/2017 to evaluate the efficacy of hot water, organic acids, natural oils and bioagents on Septoria leaf spot and productivity of celery plants. Generally, all treatments were effective in reduction of disease severity. Also, a significant increase in fresh and dry weights of the herb, total chlorophyll as well as essential oil percent and oil yield was observed at the end of experiment. The use of the tested materials individually as seed treatments and foliar spray were less effective in reducing the disease incidence and severity than combined treatments with hot water-treated seeds and foliar spray with any of the tested materials. The highest efficacy was obtained from plots received hot water-treated celery fruits combined with phycare + thyme oil as a foliar spray in addition to the fungicide Ridomil gold MZ 68 WG. Furthermore, all the treatments showed significant increases in the defence-related enzymes, peroxidase (POD) and polyphenoloxidase (PPO) as compared with the untreated control.

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