EFFECT OF IRRIGATION RATES AND ORGANIC FERTILIZATION ON GROWTH, YIELD AND ACTIVE CONSTITUENTS OF QUINOA (CHENOPODIUM QUINOA WILLD) PLANT

Abstract

the current study was conducted at the experimental Farm of South Tahrir in Al-Behira governorate, Horticulture Research Station, Horticulture Research Institute (HRI), during the two successive seasons of 2016/2017 and 2017/2018. The main target of this work was to identifying the effective rate of applied irrigation at 3 rates of (400, 500 and 600 m3/fed.) combined with organic compost fertilizers at levels (0, 5, 7.5 and 10 m3/fed.) on growth yield and chemical composition of quinoa (Chenopodium quinoa Willd) plant. The obtained data showed that, application of irrigation at moderate rates (500m3) +10m3compost/fed./season) to quinoa plant recorded the maximum values of plant height, number of branches/plant, dry weight of herb/plant (g), seed weight /plant (g), seed index، protein, carbohydrates, N, P and K contents in both seasons. While, minimum values were obtained by irrigation rates 400m3/fed./seasons + 5m3compost /fed. Irrigation rate (400m3 + 10m3compost/fed./season) resulted in the highest values of saponins and phenols. While, the lowest values were obtained by irrigation rates 600m3/fed.+5m3compost/fed.