Posts

Objectives of Plant Breeding

-
Major Objectives of Plant Breeding Program Plant breeding is an important branch of agricultural science. Its main purpose is to develop new and improved crop varieties. These improved varieties give better yield, better quality, and better resistance against diseases and harmful environmental conditions. A plant breeding program is planned according to the needs of farmers, consumers, industries, and climate. The major objectives of plant breeding are explained below in simple paragraph form. 1. Higher Yield The first and most important objective of plant breeding is to increase crop yield. Food demand is increasing due to rapid population growth, so breeders try to develop varieties that produce more grains, fruits, seeds, or biomass per unit area. High-yielding varieties help farmers earn more profit and improve food security. This is why yield improvement is considered the central objective of every breeding program. 2. Improved Quality Another major objective is to improve t...
Post a Comment
Read more

Morphology of Psilotum

-
Morphology of Psilotum 1. Introduction to Psilotum Psilotum belongs to the family Psilotaceae and order Ophioglossales of the vascular plant division (Pteridophyta). It is the only genus of the family Psilotaceae. In total, there are about 18 species of Psilotum belonging to the genus, out of which 2 occur in India viz., P. nudum and P. triquetrum. The plants of this genus are popularly known as whisk ferns, as they resemble the whiskers of some animals. Psilotum species are unique plants with small, leaf-like stems that absorb water and nutrients. They are classified as vascular plants with xylem and phloem, but lack most features common to vascular plants. Unlike other vascular plants, species of this genus do not have true leaves, roots or flowers. Instead of conventional green leaves, they have flattened photosynthetic branches that perform photosynthesis and help in the growth of new branches. Flora of Psilotum exist in two different forms. Some are terrestrial, found in rainfore...
Post a Comment
Read more