Physiological responses in nutrient solution treated phaseolus vulgaris plants grown on calcareous soil

The results of this work showed that the observed responses of plant growth and some related physiological aspects were dependent on [1] the concentration of CaCO 3 in soil, [2] the organ of the plant. Thus, the results of this work could be summarized as follows: - 1. The growth criteria of shoot [length, dry weight, area of fully expanded leaf and the total leaf area] were highly significantly decreased in response to the high levels of CaCO 3 treatments [40, 60 and 80 percent] during the plant growth. 2. Soil application of different levels of CaCO 3 induced appreciable decrease in total auxins, gibberellins and cytokinins and caused accumulation of abscisic acid. 3. The different levels of CaCO 3 induced different decreases in chlorophyll a, chlorophyll b, and total pigments with respect to the recorded values for control. Also, the results showed that the high concentration of CaCO 3 [60, 80 percent] highly significantly increased the carotenoids content while the lower levels of CaCO 3 [10, 20 and 40 percent] non-significantly affected such photosynthetic pigment. The results also showed a reduction in 14CO2-photo-assimilation in response to the different levels of CaCO3, the magnitude of reduction in the soluble, insoluble, total photosynthates and soluble/insoluble ratio photosynthates was more pronounced with the increase in the concentration of CaCO3 4. It has found that uptake and transport of Ca [++], Na [+] and K [+] ions under soil application of CaCO 3 are closely related to the individual parts of Phaseolus vulgaris plants

Plant growth, metabolism and adaptation of glycine max and phaseolus vulgaris subjected to anaerobic conditions and drought

The present study was to investigate further the effects of water stress whether induced by water regime or excessive water supply on growth, yield and metabolism of three, leguminous plants [Phaseolus vulgaris cv. Giza 3, Phaseolus vulgaris cv. Contender and Glycine max cv. Crowford] to observe differences, in growth and metabolism, if any among these three plants of commercial interest in Egypt. The induction of water stress was applied in the form of four different water treatments; two of them were drought treatments [water withholding] where the two other treatments were anaerobic water stress [excessive water supply]. Except for the stimulation effect which was elected in growth criteria of soybean plants [shoot length, number of leaves, fresh and dry weights and mean leaf area of the fully expanded leaves] at the flowering stage in response to the excessive water supply, water withholding [at two levels] and excessive water supply [at the higher level] treatments reduced these growth criteria of the three tested plants during the experimental stage. On the other hand, the low level of excessive water supply [wet treatment] stimulates the growth criteria of the tested plants. Treatment of the three bean plants with various water levels led to marked changes in the total amounts and in the relative composition of carbohydrate and nitrogen contents in shoots and in the yielded seeds. Furthermore, a highly significant decrease in oil content of soybean seeds under the dry treatment was obtained whereas a reversible situation was apparent in seeds of wet treated plants. In seeds of both P. vulgaris plants, a significant decrease in oil content was induced under wet treatment in relation to control values; both plants did not survive to the yield stage under dry treatment Marked changes were also obtained for the constituent saturated and unsaturated fatty acids in the yield of seeds. In soybean seeds, the dry treatment increased the saturated fatty acids and decreased the unsaturated fatty acids, whereas an opposite results were observed in seeds of wet-treated plants. Also in seeds of both cultivars of P. vulgaris, the increase in saturated fatty acids was accompanied by a decrease in unsaturated ones under wet treatment. In relation to control levels, water stress appeared to induce marked qualitative and quantitative changes in the types of protein produced by the legume plants. These changes appeared to substantiate the conclusion arrived at from the other results that soybean plants can be considered as being more tolerant to water stress than both cultivars of P. vulgaris used

Effect of pix on growth, pigments and productivity of soybean plants

The object of this study was to investigate the Effect of foliar application of pix [at 500, 1000 and 2000 ppm], at flowering and fruiting stages throughout the two successive seasons 1990 and 1991, on the growth criteria, pigment contents and yield of soybean [Glycine max. var Crawford] plants. During the harvest, the yield and yield attributes were determined in the pix-treated and untreated plants. Pix at all doses applied resulted insignificant decreases in the plant height, leaf area, number of nodes and flowers as well as the fresh and dry weights of treated plants as compared with the control. Pix at the highest concentration [2000 ppm] appeared to inhibit the formation of pigments. Meanwhile, the relatively low concentrations of pix [500 and 1000 ppm] induced a marked increase in pigments content of soybean leaves. The seeds weight per plant and weight of 100 seeds which were used as two measurements for soybean yield showed a marked increase in response to the different levels of pix. The increase in these parameters was accompanied by significant increases in plant weight, crop weight, number of pods and straw weight. Also, simple correlation coefficients either for seeds weight per plant or for weight of 100 seeds and each of yield attributes in pix-treated plants were studied

Quantitative studies of body weight, length, weight and length velocities of Assiut infants and preschool children

The present study was carried out in an attempt to construct growth standards for body weight and length, weight and length velocities as well as establishment of percentile charts for body weight and length for body weight and length for infants and young children. A total number of about one thousand male and female infants and young children aged from birth till the end of the sixth year were included in the present study. Each infant and child was subjected to measurements of body weight and length. Statistical analysis of the raw data was carried out. The present study indicated that the mean birth weight was 3700 gms for boys and 3400 gms. for girls. It was noticed that the birth weight is doubled by the age of 6 months and tripled by the age of 2 years. By the age of 4 years the birth weight is quadrepled and by the age of 6 years the body weight is about 6 times of its birth weight. The present study indicated also, that the mean recumbent length was 554 mm for boys and 542 mm for girls. By the age of 2 years the body length is about one and half of its birth length and by the age of 5 years the birth length is doubled. The growth rates indicated that the infantile component of growth velocity occurred early in infancy at the age of 0-6 mo-interval. There is also, two other growth velocities in childhood, one occurred early in childhood 2-3 years interval and the other occurred later at the age 5 1/2-6 year interval. These growth standards as well as the percentile growth charts are of great importance in assessment of growth of infants and young child in our locality