Page 1 of 50 - About 500 essays
  • The Effect Of Gibberellins On Seeds Germination Of Seed Germination

    3489 Words  | 14 Pages

    Abstract Faster and uniform germination of seed as well as establishment of vigourous crop is of paramount importance in direct-seeded rice crop, which in turn depends on seed germination and vigour per se. Rice being an albuminous seed, it is hypothesized that galactomannan hydrolysing enzymes (viz., β-mannanase, β-mannosidase and α-galactosidase) play important role in loosening of the embryo-surrounding tissue viz., endosperm, which in turn governs the speed of germination. The study was an assessment

  • Essay on Germination Factors

    1502 Words  | 7 Pages

    ABSTRACT Factors affecting germination are numerous and well studied (soil nutrient composition, water availability, temperature, etc). Others, such as seed size and its effects on the duration of seed germination have been largely unstudied. In this study, seeds from the plants P. vulgaris and L. culinaris were studied to observe any differences in the duration of germination, with P. vulgaris being the larger seed species. The data revealed that seeds from the L. culinaris took a shorter period

  • Essay Seed Germination

    768 Words  | 4 Pages

    Seed Germination Seed germination is the process in which seeds or spores sprout and begin to grow after being dormant for a period of time. The length of dormancy varies depending environmental conditions in which the seed is surrounded by. The environmental conditions that determine when a seed will begin to germinate are the temperature, oxygen, the amount of light, and the supply of water (Germination, accessed 23 February 2010, http://www.answers. com/topic/germination). For a seed to begin

  • The Importance Of Plant Germination

    903 Words  | 4 Pages

    regulation of the dormancy state and germination of seeds (Vleeshouwers, Bouwmeester and Karssen, 1995). The initiation of germination in seeds often occurs within a narrow range of temperatures known as the optimal temperatures, where germination rate is the fastest and yield is at its greatest. Optimal temperatures vary between species and seasons of the year (Went, 1953). There are two thresholds known as the base temperature and ceiling temperature, where germination will not occur at, below and beyond

  • Germination of Cress Seeds

    3479 Words  | 14 Pages

    There are several conditions that affect the germination of seeds. Most factors are external but there are also some internal conditions that affect the germination of seeds, even though this is quite rare. The most common and the most important external conditions and factors that affect the germination of seeds are oxygen, water, temperature and also in some cases light or darkness. Some plants require several variables for successful seed germination. As this is quite rare, this often depends on

  • Introduction. “Germination Is The Growth Of A Plant Contained

    1038 Words  | 5 Pages

    Introduction “Germination is the growth of a plant contained within a seed. Seed germination depends on both internal and external conditions. The most important external factors include right temperature, water, oxygen or air and sometimes light or darkness. Various plants require different variables for successful seed germination. Often this depends on the individual seed variety and is closely linked to the ecological conditions of a plant 's natural habitat. For some seeds, their future germination response

  • Germination Lab Report

    1506 Words  | 7 Pages

    BIOLOGY GERMINATION EXPERIMENT INTRODUCTION: Germination is the resumption of growth of the embryo plant inside the seed. Requirements for germination: * proper temperature * the presence of adequate water * oxygen There are two types of cotyledons: the monocotyledons (“monocots”) and the dicotyledons (“dicots”). Monocots have one cotyledon. Rice and corn are monocots. Dicots have two cotyledons. Lentils, lima beans, and green beans are dicots.* Germination in Dicots 1

  • Factors Of Seed Germination Of Raphanus And Cucumber

    1170 Words  | 5 Pages

    Seed germination and seedling growth: The seeds were surface sterilized with 0.1% Mercuric chloride for 5 minutes then washed with distiied water several times to remove chemicals. The seeds of Raphanus and Cucumber were spread on sterile filter paper in each petridish and soaked in aqueous root exudates of each weeds. Each weeds had three replicates with equal quantity of seeds in petridishes. The seeds are allowed to grow for 10 days at room temperature. The seeds treated with sterile distilled

  • The Germination of Seeds of the Native Plant Acacia

    1161 Words  | 5 Pages

    The Germination of Seeds of the Native Plant Acacia decurrens Practical Report Biology 1 Introduction: In a botanical sense, “germination is the process of emergence of growth from a resting stage.” ( Under favourable conditions, the seed begins to germinate, and the embryonic tissues resume growth, developing towards a seedling. Soils from a Cumberland Plain Woodland community were investigated to determine the presence of a soil seed-bank;

  • The Effect Of Gibberellic Acid On The Germination Of Seeds

    931 Words  | 4 Pages

    The Effect of Gibberellic Acid on the Germination of Seeds Authors Bijin Johnson, Veronica Razon, Harmony Juanta, Charlee Parr and Cathleen Castro. Introduction In this practical, six bags containing twelve histrix cactus seeds each were taken and another six bags containing twelve rocket salad seeds in each bag. Each bag was experimented with different concentrations of gibberellic acid to see how fast each would grow. Gibberellic Acid is an organic molecule whose chemical formula is C₁₉H₂₂O₆