BOT-401 NOTES

BOTANY

BOT-401 PLANT DEVELOPMENT AND REPRODUCTION BIOLOGY NOTES

Unit-I

Lecture - 1 Floral anatomy: General account:-

https://plantbreeding2010.blogspot.com/2026/09/floral-anatomy-general-account.html

Lecture - 2 Origin and evolution of flower:-

https://plantbreeding2010.blogspot.com/2026/09/origin-and-evolution-of-flower.html

Lecture - 3 Stamen Origin and evolution from foliar to reduced condition:-

https://plantbreeding2010.blogspot.com/2026/09/stamen-origin-and-evolution-from-foliar.html

Lecture - 4 Carpel evolution: Conduplicate, involute, appendicular and recepticular concepts, specialized carpels, poly and syncarpy, semi-inferior and inferior ovary. Evolution and types of placentation:-

https://plantbreeding2010.blogspot.com/2026/09/carpel-evolution-conduplicate-involute.html

UNIT-II

Lecture -5 Ultra structure and functions of primary and secondary xylem:-

https://plantbreeding2010.blogspot.com/2026/09/ultra-structure-and-functions-of.html

Lecture -6 Ultra structure and function of phloem:-

https://plantbreeding2010.blogspot.com/2026/09/ultra-structure-and-function-of-phloem.html

Lecture -7 Structural variability in leaves and trichomes:-

https://plantbreeding2010.blogspot.com/2026/09/structural-variability-in-leaves-and.html

Lecture -8 Anatomy of dicotyledonous and monocotyledonous seeds, Unique features of plant development:-

https://plantbreeding2010.blogspot.com/2026/09/anatomy-of-dicotyledonous-and.html

UNIT-III

Lecture -9 Microsporangium, structure and function of wall layers, ultra functional changes in tapetum and meiocytes, role of callose, role of tapetum in pollen development, development of male gametophyte:-

https://plantbreeding2010.blogspot.com/2026/09/microsporangium-structure-and-function.html

Lecture -10 Anther culture and haploid plants:-

https://plantbreeding2010.blogspot.com/2026/09/anther-culture-and-haploid-plants.html

Lecture -11 Mega sporangium (ovule) – types and evolution, mega sporogenesis, embryo sac types, structure of egg, synergids, and antipodal cells:-

https://plantbreeding2010.blogspot.com/2026/09/mega-sporangium-ovule-types-and.html

UNIT-IV

Lecture -12 Pollination: Structure and histochemical details of style and stigma:-

https://plantbreeding2010.blogspot.com/2026/09/pollination-structure-and-histochemical.html

Lecture -13 Self and interspecific incompatibility:-

https://plantbreeding2010.blogspot.com/2026/09/self-and-interspecific-incompatibility.html

Lecture -14 Barriers to fertilization, methods of overcoming incompatibilities:-

https://plantbreeding2010.blogspot.com/2026/09/barriers-to-fertilization-methods-of.html

Lecture -15 In-vitro pollination and its uses:-

https://plantbreeding2010.blogspot.com/2026/09/in-vitro-pollination-and-its-uses.html

UNIT-V

Lecture -16 Fertilization: discharge and movement of sperms, syngamy and triple fusion, post fertilization changes in embryo sac:-