Seed Plot Soil Management

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Questions and Answers

Which factor is responsible for genetic deterioration in seed due to different soil and fertility conditions?

Mutations

Developmental variations (correct)

Mechanical mixture

Natural crossings

What is the most important source of variety deterioration during seed production?

Mechanical mixture (correct)

Developmental variations

Selective influence of diseases

Natural crossings

Which of the following factors is responsible for the maintenance of genetic purity of any seed variety?

Developmental variations

Technique of the plant breeder (correct)

Selective influence of diseases

Mechanical mixture

What may lead to genetic deterioration in seed due to different photoperiods or elevations?

Developmental variations Signup and view all the answers

Which factor is responsible for genetic deterioration in seed due to selective influence of diseases?

Selective influence of diseases Signup and view all the answers

How can the genetic purity of a variety be maintained during seed production?

By minimizing mechanical mixture Signup and view all the answers

What can lead to the deterioration of genetic purity in a seed variety?

Natural crossings Signup and view all the answers

What is the significant source of genetic contamination and variety deterioration in sexually propagated crops?

Natural crossing Signup and view all the answers

How can mixing during harvesting and threshing lead to varietal deterioration?

By contaminating equipment with seeds of other varieties Signup and view all the answers

What can be difficult to identify and may require rouging from seed plots to purify the seeds?

Mutations Signup and view all the answers

How can selective influence of diseases impact the genetic purity of new crop varieties?

By becoming susceptible to new races of diseases Signup and view all the answers

What may still exist in varieties even if they appear uniform and homogenous at the time of release?

Minor genetic variations Signup and view all the answers

What should be maintained to keep genetic purity in seed crops?

Regular rouging operations Signup and view all the answers

Which agronomic principle is important for successful seed production?

Avoiding high temperatures and strong winds Signup and view all the answers

What should the soil of the seed plot be free from?

Diseases and salinity Signup and view all the answers

What is a critical factor in field preparation for seed crops?

Eliminating weeds and preparing a favorable seedbed Signup and view all the answers

What is an important consideration for the selection of seed variety?

Adaptation to local conditions and high popularity Signup and view all the answers

Where should the seed used for planting be obtained from?

Authorized agencies with intact tags and seals Signup and view all the answers

What are the recommended measures for weed control in seed crops?

Good crop rotation and suitable herbicides Signup and view all the answers

What is a consideration for seed planting time?

Planting at normal time with sufficient soil moisture Signup and view all the answers

What is an important factor in the application of fertilizer for seed crops?

Balanced form and considering individual crop needs and soil fertility status Signup and view all the answers

What is the process of removing unwanted plant types and weeds from the seed crop?

Rouging Signup and view all the answers

What is the crucial process in seed production involving the transfer of pollen from the male anther to the female stigma?

Pollination Signup and view all the answers

How can seed producers aid insect pollination?

By attracting bees and other insects to crops Signup and view all the answers

What is necessary to verify seed sources and check for unwanted plant types and weeds?

Seed inspections Signup and view all the answers

What is essential to maintain seed quality?

Disease and insect control Signup and view all the answers

When should seed harvesting be carried out?

At optimal moisture levels and weather conditions Signup and view all the answers

What should be done to seeds after harvest for preservation?

Seeds should be dried after harvest to safe moisture content levels Signup and view all the answers

Where ideally should seeds be stored from maturity until planting?

In cool, dry, clean facilities with proper labeling Signup and view all the answers

How can seeds be protected against high relative humidity for long-term storage?

By using appropriate packaging materials and methods Signup and view all the answers

Study Notes

Pollination is a crucial process in seed production, involving the transfer of pollen from the male anther to the female stigma
Seed producers can aid insect pollination by attracting bees and other insects to crops through methods like colony placement and wild bee cultivation
Seed inspections are necessary to verify seed sources and check for unwanted plant types and weeds
Rouging is the process of removing unwanted plant types and weeds from the seed crop
Disease and insect control are essential to maintain seed quality
Seed harvesting should be carried out at optimal moisture levels and weather conditions
Seeds should be dried after harvest to safe moisture content levels for preservation
Seeds are stored from maturity until planting, ideally in cool, dry, clean facilities with proper labeling to prevent mechanical mixture
Seeds can be packaged in materials like cotton, jute, and paper but should be protected against high relative humidity for long-term storage.

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Description

Test your knowledge on seed plot soil management and certification standards with this quiz. Learn about the requirements for using land for seed production and preventing soil-borne diseases and pests.