05/01/2018 · What factors affect photosynthesis
There are three main factors that affect the rate of photosynthesis
Linseed () meal is the by-product ofextracting the seed for oil. The meal contains 350-380 g/kg CP that is low inprotein quality, being deficient in lysine. It has been a favourite proteinsource for horses and ruminants in the past. Today, soya meal is preferred as itis cheaper and of higher protein quality. The meal fed in large amounts islaxative, and excess amounts in rations have undesirable softening effects onbutterfat and give milk a rancid taste. The recommended maximum intake forcattle is 3 kg per day. Because of this softening property of the oil, linseedcake is unsatisfactory as a main ingredient in pig feeds. Up to 1 kg per day hasbeen used with good results, but not more than 8 percent linseed meal iscommonly included in rations. For young pigs and brood sows a maximum of 5percent linseed meal in the ration is usually recommended. Linseed meal is toxicto poultry except in very small proportions (under 3 percent). Larger amountsdepress growth. The toxicity can largely be eliminated by soaking the meal inwater for twenty-four hours or by adding pyridoxin, one of the B-vitamins to thediet (FAO, 2001c).
Factors Affecting The Rate Of Photosynthesis - Google …
The results of this experiment suggested that the performance in terms of tolerance to water stress and maintenance of root growth during a water deficit was similar in seedlings of small and big size, even under temperatures warmer than those generally occurring in typical boreal forests dominated by black spruce. Moreover, delayed stomatal closures were observed to occur in smaller seedlings, which allowed higher rates of photosynthesis to be maintained than in bigger seedlings. Given the financial and logistic advantage of using smaller seedlings in artificial regeneration, their utilization should be seriously considered and tested in boreal stands experiencing occasional drought events or non-optimal soil moisture conditions.