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Development is the sum of two processes: growth and differentiation. To begin with, it is essential and sufficient to know that the development of a mature plant from a zygote (fertilised egg) follow a precise and highly ordered succession of events.
Mar 17, 2018 · Intrinsic and extrinsic factors control the process of growth and development in plants. Growth is a permanent or irreversible increase in dry weight, size, mass or volume of cell, organ or organism. It is internal or intrinsic in living beings. In plants growth is accomplished by cell division, increase in cell number and cell enlargement.
Growth, differentiation, and development are closely related events. A plant cannot develop if the cells do not grow and differentiate. The following topics will help you understand more about the growth and development of plants. Seed Germination; Phases of Plant Growth; Differentiation and Development in Plants; Plant Growth Regulators; Seed ...
Feb 3, 2023 · How Plants Grow. Meristem, a type of tissue consisting of undifferentiated cells, is the key to all plant developments. Apical meristems are located at the apex or tip of roots and buds. They help roots and stems increase in length, allowing flowers and leaves to perform cell division.
Development: Development implies a whole sequence of qualitative structural changes that a plant undergoes from the zygote stage to its death. The developmental changes may be gradual or abrupt. Examples of certain abrupt changes are germination, flowering and senescence (ageing leading to death).
Development of plants (i.e. growth and differentiation) is influenced by extrinsic factors (light, temperature, water) and intrinsic factors (genes and plant growth regulators). Plants respond in different ways to environment and phases of life and give rise to different forms of structures.
6 days ago · This supports plant growth and mitigates the greenhouse effect, exemplifying the ecological role of photosynthesis. Plant Hormones and Growth. Plant growth and development are orchestrated by a suite of hormones, each playing distinct roles in guiding plants through their life cycles. Auxins influence cell elongation, particularly in stem and root growth. They facilitate phototropism and gravitropism by redistributing themselves within plant tissues in response to light and gravity, driving ...
Plant development, a multiphasic process in which two distinct plant forms succeed each other in alternating generations. One form, the sporophyte, is created by the union of gametes (sex cells) and is thus diploid (contains two sets of similar chromosomes). At maturity, the sporophyte produces.
Plant growth and development are mediated by specific plant hormones and plant growth regulators (PGRs) (Ross et al. 1983). [10] Endogenous hormone levels are influenced by plant age, cold hardiness, dormancy, and other metabolic conditions; photoperiod, drought, temperature, and other external environmental conditions; and exogenous sources of ...
NCERT Solutions for Class 11 Biology Chapter 15 – Plant Growth and Development. Plant Growth and Development is the last chapter covered in the Plant Physiology unit. Development is the sum of two processes – growth and differentiation.
