Plant morphology

About: Plant morphology is a research topic. Over the lifetime, 1174 publications have been published within this topic receiving 24418 citations. The topic is also known as: phytomorphology & morphology of higher plants.

EFFECT OF GROWING DATE AND CULTIVAR ON THE MORPHOLOGICAL PARAMETERS AND YIELD OF Brassica rapa var. japonica

Abstract: The Brassica rapa var. japonica is a valuable plant, commonly cultivated in the Far East. It is still unknown vegetable crop in Poland. It is necessary to assess plant re- sponse to field conditions in Polish climatic zone before introducing this species to the large-scale production. The aim of the study was to evaluate the effect of growing date (transplants were planted out to the field in the middle and at the end of August - 1 st and 2 nd production term, respectively) and cultivar (Mibuna, Mizuna) on morphological pa- rameters, yielding and chemical composition of the plants. Before planting out, trans- plants of Mibuna have been found to be larger than Mizuna, the differences in the con- tents of chemical components in these cultivars were statistically insignificant at this time (with the exception of dry matter). The transplants from a later production term were characterized by greater fresh weight and height, longer leaves, and lower content of dry matter, soluble sugars and carotenoids. Based on collected data regression equations were developed to predict the course of growth and development of Brassica rapa var. japon- ica during field vegetation with a precision of more than 94%. There were no statistical differences in yields among cultivars, while significant effect of growing date was ob- served. The total and commercial yield was higher by 3.34 and 3.77 t·ha -1 , respectively, in the 2 nd production term than in an earlier one. During harvests the content of chlorophylls, carotenoids and L-ascorbic acid was higher in the rosettes of Mibuna cultivar, while Mi- zuna had more dry matter and soluble sugars. Production of the plants from later plantings resulted in significantly increased soluble sugars content in the rosettes, but the reduction in dry matter and L-ascorbic acid was observed.

Morphological and physiological effects of UV-C radiation on bean plant (Phaseolus vulgaris).

Abstract: In this study, morphological and physiological effects of the stress with the UV-C rays on the industrial Atlanta type beans (Phaseolus vulgaris L. Cv, Atlanta) were analyzed. The plants were raised in an automated green house with the ecological conditions. The plants were grown in the green house with UV-C lamb (250) for 6, 8, 10, 12 and 14 days. After which their root lengths and seeding heights in their leaves and feather structure in their leaves were analyzed. It was observed that seedling height was reduced by the exposure of UV-C. At the end of the 14 days, chlorophyll a, b and total chlorophyll were also measured in the leaves. Total chlorophyll content significantly decreased in the UV-C exposed plants. Similarly, chlorophyll a and b were also significantly decreased in the leaves of plants exposed to UV-C. It was concluded that exposure to UV-C rays adversely effected the growth and photosynthesis in the bean plant.

Determination of some agronomic traits of Bituminaria bituminosa accessions collected from Middle Black Sea Region

Abstract: Because dry period has extended in recent years especially in summer, it is necessary to keep forage plants such as Bituminaria bituminosa wich remains fresh during the summer period and grows in shallow, low fertility ranges. In the present study, some morphological and agricultural features of perennial Bituminaria bituminosa (Psoralea bituminosa) populations, collected from 7 different locations of Middle Black Sea Region in Turkey, were investigated. Collected seeds were sown in seed trays and obtained seedlings were then transplanted to the field. Some agronomical and morphological traits such as: plant height, flowering period, leaf number/plant, branch number/plant, main stem width, middle leaf length and width, inflorescence (head) number/plant and flower number/inflorescence, seed length, seed width, and germination rate were observed in the establishment year. Certain differences were determined between the populations, for example, plant height ranged between 54 and 128 cm, leaf number per plant between 596 and 50, and main stem diameter between 3.54 and 8.29 mm at 50% flowering stage. Furthermore, flowering period ranged between 94-128 days, number of inflorescences per plant between 3-177, number of flowers per head between 7-25, and seed weight between 2.16-4.20 g.

Patterns of morphological diversity and character association in chickpea genotypes through multivariate approach.

Abstract: Pattern of morphological diversity and character association in twenty chickpea genotypes was assessed through multivariate approach. Three principal components were deduced (eigen value > 1) which contributed to a total of 62.83% variability among the genotypes. PC-I contributed 34.78% to total variation. Factor loadings revealed that all the characters contributed positively to PC-I except days to flowering and plant height. Days to flowering exerted maximum negative load on the factor I while the highest positive contribution to the PC -I was endorsed by number of pods/plant, seeds/plant, biological yield, and grain yield/plant. Secondary branches, plant height, seeds/plant, 100 -seed weight and biological yield had positive weight on PC -II where secondary branches followed by plant height showed the maximum contribution. Days to maturity, primary branches, plant height, seeds/pod and 100-seed weight exerted positive factor loadings on PC-III among which the highest weight was contributed by plant height followed by number of primary branches. Cluster I and II comprised of seven lines each. Long duration genotypes with high number of seeds/pod came under cluster I. However, the cluster II, classified genotypes with better grain yield and its components . However, the other six genotypes were long duration with maximum plant height and fell in cluster III . This study suggested enough scope for selection for grain yield and its components.