PLANT BREEDING : A NUMBERS GAME

• 발행기관: 한국육종학회
• 저자명: Byung Han Choi(崔炳漢) 와렌 이. 크론스타드(Warren E. Kronstad)
• 간행물 정보: 『한국육종학회지』Vol.18 No.1, 80~87쪽, 전체 8쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 1986.03.30

영문 초록

The average yield for cereals including wheat and barley is less than 2.2 tons per hectare on a world wide basis. Constraints to higher yields are due to various environmental stresses such as temperature, moisture, length of growing season, pollution, soil, weed, and disease and insect problems. Thus breeding plants for stress environments is the major function of the plant breeder. The question which must be asked is “Do we have enough genetic variability to make further progress?”. Or as suggested recently in many popular magazines, have yield plateaus been reached for most of our major food crops. In recent years, progress in cereal breeding has been slow, with breeding for grain yield per se becoming more difficult. It is now thought that 80 to 90 percent of the resources devoted to breeding goes just to maintain existing yield levels. Also as a breeder increases the number of traits desired in a new cultivar, the smaller the probability is that such progeny can be found. Thus, to increase this probability plant breeding programs make many crosses and grow large segregating populations. We must recognize that PLANT BREEDING is in fact A NUMBERS GAME.

목차

ABSTRACT

INTRODUCTION

GENETIC CONCEPTS OF A SEGREGATING POPULATION

Response to Selection

BREEDING TECHNIQUES FOR CEREALS

摘要

REFERENCES