منابع مشابه
Nutrient Management in Recirculating Hydroponic Culture
INTRODUCTION There is an increasing need to recirculate and reuse nutrient solutions in order to reduce environmental and economic costs. However, one of the weakest points in hydroponics is the lack of information on managing the nutrient solution. Many growers and research scientists dump out nutrient solutions and refill at weekly intervals. Other authors have recommended measuring the conce...
متن کاملGrowth Culture Conditions and Nutrient Signaling Modulating Yeast Chronological Longevity
The manipulation of nutrient-signaling pathways in yeast has uncovered the impact of environmental growth conditions in longevity. Studies using calorie restriction show that reducing glucose concentration of the culture media is sufficient to increase replicative and chronological lifespan (CLS). Other components of the culture media and factors such as the products of fermentation have also b...
متن کاملNutrient and metabolite ana lysis : understanding cell culture
ISSN 2048-9145 Natarajan Vijayasankaran Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA E-mail: [email protected] “ challenges are associated with the need to achieve high levels of productivity to reduce operational cost while maintaining acceptable and consistent product quality to ensure safety and efficacy of the drugs produced. ”
متن کاملEffect of Different Nutrient Solutions on The Yield, Chemical Composition and Nitrate Accumulation of Lettuce in Soilless Culture System
An experiment was conducted to select the optimum nutrient solution for growing lettuce (Lactuca sativa L.) under hydroponic conditions (open system) and Shahrekord climate, as a completely randomized design with five different nutrient solutions and three replicates, in Shahrekord University. The nutrient solutions were: 1) Research Station for Floriculture and Greenhouse Vegetables (the Nethe...
متن کاملEffect of aflatoxin culture on intestinal function and nutrient loss in laying hens.
The negative effects of aflatoxins (AFLA) on hepatic necrosis and total tract digestibility of energy, N, and amino acids have been well documented. However, the question remains if this is an effect on nutrient metabolizability alone or an effect on the intestine, or both, resulting in increased endogenous nutrient loss or reduced nutrient retention, or both. Therefore, a 2-wk feeding study wi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sen'i Gakkaishi
سال: 1993
ISSN: 0037-9875,1884-2259
DOI: 10.2115/fiber.49.8_p306