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现已肯定,同一个品种繁殖的品质也相同,但在不同的栽培条件下,产量却不同,每公顷差异在4-7公担以上.高产种子是在田间形成的,因此每个良种繁育场应采用专门的栽培技术来繁殖种子.但并不是说就再没有其他提高种子丰产特性的可能性了.土壤、气候、农业气象、生物等自然因素对产量特性的影响很大,在某些情况下,它们的影响往往超过农业技术,甚至超过品种的差别.
It has been affirmed that the same breed quality is the same, but under different cultivation conditions, the yield is different, the difference per hectare in the 4-7 km above the high-yielding seeds formed in the field, so each breeding ground Special cultivation techniques should be used to breed seeds, but that does not mean that there is no other possibility of increasing seed yield characteristics. Natural factors such as soil, climate, agrometeorology and biology have a significant impact on yield characteristics and in some cases Under the influence of their often over agricultural technology, even more than the difference between varieties.