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近年来,小麦育种处在徘徊状态。明显的表现是,新育成的品种在育种圃或在试验阶段亩产可达400～450公斤,但到了大田,亩产只有250～300公斤。众所周知,小麦亩产水平的高低,是品种、栽培条件和自然气候条件三者共同作用的结果,而品种又是三者中的主导因素。在笔者看来,由于培育的品种水平不高,没有突破,因而出现了裹足不前现象。何为小麦育种的突破,其具体标准是什么?这是一个很值得研究和讨论的问题。一、植株性状研究要深入一株小麦包含着各种各样的植株性状,这些性状是很多遗传
In recent years, wheat breeding is in a state of wandering. The obvious manifestation is that newly bred breeds may yield 400 to 450 kilograms per mu in breeding nursery or during the pilot phase, but in the fields only 250 to 300 kilograms per mu will be produced. It is well-known that the level of per mu yield of wheat is the result of the common action of varieties, cultivation conditions and natural climatic conditions, and the variety is the dominant factor among the three. In my opinion, due to the breed level is not high, there is no breakthrough, which appeared to be stagnant. What is a breakthrough in wheat breeding, the specific criteria? This is a very worthwhile study and discussion. First, the study of plant traits To a depth of wheat contains a variety of plant traits, these traits are a lot of genetic