{"id":6054,"date":"2026-02-12T10:51:47","date_gmt":"2026-02-12T10:51:47","guid":{"rendered":"https:\/\/www.chennaineet.com\/blog\/?p=6054"},"modified":"2026-02-13T07:38:46","modified_gmt":"2026-02-13T07:38:46","slug":"plant-growth-and-development-ncert","status":"publish","type":"post","link":"https:\/\/www.chennaineet.com\/blog\/plant-growth-and-development-ncert\/","title":{"rendered":"NCERT Book for Class 11 Biology \u2013 (Chapter 15 \u2013 Plant Growth And Development)"},"content":{"rendered":"\n

Chapter 15 \u2013 Plant Growth And Development<\/strong><\/h2>\n\n\n\n

Plant Growth and Development is an important chapter in Class 11 Biology that explains how plants grow, differentiate, and develop throughout their life cycle. Plant growth is a permanent and irreversible increase in size due to cell division, elongation, and differentiation, mainly occurring in meristematic tissues<\/strong>.<\/p>\n\n\n\n

This chapter covers key concepts such as phases of growth (lag, log\/exponential, and stationary phase)<\/strong>, growth rate<\/strong>, and conditions for growth<\/strong>. It also explains plant growth regulators (PGRs)<\/strong> including auxins, gibberellins, cytokinins, ethylene, and abscisic acid (ABA)<\/strong>, and their role in controlling various physiological processes like flowering, fruit ripening, dormancy, and seed germination.<\/p>\n\n\n\n

The chapter further discusses photoperiodism, vernalization, and seed dormancy<\/strong>, which are essential for understanding plant responses to environmental factors. This topic is highly important for CBSE board exams and competitive exams like NEET<\/a>, as it forms the foundation of plant physiology.<\/p>\n\n\n\n

Plant growth and development ncert<\/strong><\/h2>\n\n\n
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