1976年《甘蔗糖业(甘蔗分刊)》第2期刊登了杨必宁同志对海南甘蔗育种场的两篇文章,就如下两个观点提出商榷:“甘蔗杂交育种的主要矛盾,就是甘蔗亲本材料的数量和质量均不能满足甘蔗育种上的需要。”“正确选配杂交亲本组合是甘蔗选育种过程中诸多矛盾中的主要矛盾。”杨同志对上述问题进行了分析和论述。并 In the second issue of “Sugar Cane Sugar Industry” (Sugarcane Quarterly), No. 2, Comrade Yang Beining published two articles on Hainan Sugarcane Breeding Farm in 1976, and put forward the following two views: “The main contradiction of sugarcane hybrid breeding is that of sugarcane parental material Quantity and quality can not meet the needs of sugarcane breeding. ”“ The correct selection of hybrid parents is the main contradiction in the process of breeding sugarcane. ”Comrade Yang analyzed and discussed the above issues. and