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为了进一步研究冰草属（ＡｇｒｏｐｙｒｏｎＧａｅｒｔｎ．）的Ｐ染色体组与小麦染色体组间的遗传关系和评价Ｐ染色体组在属间杂种自交可育性上的遗传效应，获得了普通小麦品种Ｆｕｋｕｈｏ（Ｔｒｉｔｉｃｕｍａｅｓｔｉｖｕｍｃｖ．Ｆｕｋｕｈｏ，２ｎ＝４２；ＡＡＢＢＤＤ）与３个不同来源的四倍体冰草（Ａ．ｃｒｉｓｔａｔｕｍ〈Ｌ．〉Ｇａｅｒｔｎ．，２ｎ＝２８；ＰＰＰＰ）间的杂种（２ｎ＝３５；ＡＢＤＰＰ）。结果表明：（１）不同组合的杂种间在遗传基础上差异明显，同一组合不同杂种间亦有差异；（２）冰草Ｚ５５９可能不存在抑制小麦Ｐｈ基因效应的遗传系统，但与小麦染色体组间可能存在部分同源性；（３）生长正常的Ｆｕｋｕｈｏ×冰草Ｚ５５９的杂种具部分自交可育性和明显的异花授粉结实特性，而且这些可育性很可能是由Ｐ染色体组中控制染色体在减数分裂后期分离的特殊遗传因子决定的；（４）冰草属的多倍体并非严格的同源多倍体。本实验还证实了通过幼穗培养产生再生植株，可以使属间杂种的育性显著提高。
In order to further study the genetic relationship between the P genome of wheat (AgropyronGaertn.) And the wheat genome and to evaluate the genetic effect of the P genome on the selfing ability of the interspecific hybrids, the common wheat cultivar Fukuho (Triticum aestivum cv. (2n = 35; ABDPP) with three different origins of Tetraploid Agrobacterium (A.cristatum Gaertn., 2n = 28; PPPP) The results showed that: (1) There were significant genetic differences among different combinations of hybrids, and there were also differences among different hybrids in the same combination. (2) There was no genetic system that could inhibit the Ph gene effect in wheat (Z559) (3) The growth of normal Fukuho × Agropyron hybrids Z559 with partial self-fertility and significant cross-pollination and fruiting characteristics, and these fertility is likely to be the P genome group The control of chromosome segregation in the late meiosis specific genetic factors; (4) Agropyron polyploid is not strictly homologous polyploid. This experiment also confirmed that regenerating plants through panicle culture can significantly increase the fertility of intergeneric hybrids.