Category Archives: Plant breeding

Selection method of crop improvement   What is Plant breeding? Please refer our article – Plant breeding – objectives and Methods | Agristudent.com What are the different methods of plant breeding? Please refer our article – Plant breeding – objectives and Methods | Agristudent.com Which is the oldest and rapid method of crop improvement? Please refer our article – Introduction Method of Plant breeding – Instant Info What is ‘Selection’ in crop improvement? Isolation of desirable plant types from the population is known as selection It is basic to any crop improvement project since the main aim of crop improvement […]

Soil Bulk density, particle density and Porosity What is soil made up of? Soil is made up of 4 components 1. Soil Solids containing minerals and other solid particles that constitute 45 percent 2. Soil Water constitutes 25 percent 3. Soil Air constitutes porespaces i.e. part not occupied by water or solids 4. Organic matter constitutes 5 percent What is Particle Density? It is the ratio of a given mass (or weight) of soil solids to that of its volume It is usually expressed in terms of g/cm3 if 1 cm3 of soil solids weigh 2.6 g, the particle density […]

Types of Pollination   Understanding the types of pollination in crops is very important in plant breeding. The process by which pollen grains are transferred from anthers to stigma is referred as pollination. Types of Pollination in crops is of two types: viz. 1) Autogamy or self pollination and 2) Allogamy or cross pollination. 1. Autogamy Transfer of pollen grains from the anther to the stigma of same flower is known as autogamy or self pollination. Autogamy is the closest form of inbreeding. Autogamy leads to homozygosity. Such species develop homozygous balance and do not exhibit significant inbreeding depression. Mechanism […]

Introduction on emasculation amd pollination techniques Emasculation and Pollination Techniques for Rice (Oryza sativa) (2 n = 24) (Family – Poaceae) In rice anthesis commences shortly after emergence of panicle. Spikelets at the tip bloom first and proceed downwards. Anthesis time 8-10 am. Each spikelet remain open 30 minutes and then closes. The anther dehiscence takes place immediately after the opening of the spikelets. Receptivity remains for one day Emasculation and Crossing techniques Emasculation is necessarily followed by controlled pollination. Emasculation is done during early morning between 6 and 8 AM in spikelets, due to open on the same day. […]

What is plant breeding? Plant breeding and its objectives Plant breeding can be defined as an art, a science, and technology of improving the genetic make up of plants in relation to their economic use for the man kind Plant breeding is the art and science of improving the heredity of plants for the benefit of mankind Plant breeding deals with the genetic improvement of crop plants also known as science of crop improvement It is rhe Science of changing and improving the heredity of plants What are the different Methods of Plant breeding? There are different methods of plant […]

It is the Cellular Potency The inherent potentiality of a plant cell to give rise to a whole plant is described as cellular totipotency This is a capacity which is retained even after a cell has undergone final differentiation in the plant body In plants, even highly mature and differentiated cells retain the ability to regenerate to a meristematic state as long as they have an intact membrane system and a viable nucleus This is contradicting to animals, where differentiation is generally irreversible For a differentiated cell, to express its totipotency, it first undergoes dedifferentiation followed by redifferentiation The phenomenon […]