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为了掌握早、中、迟熟小麦品种类型生长发育的基本规律,给高产栽培提供依据,我们剥检了小麦幼穗发育中的几个重要时期,包括生长锥伸长期(幼穗分化开始)、小穗分化期(包括单棱期及二棱期)、小花分化期、雌雄蕊分化期、雌雄蕊形成期,并研究了主茎总叶片数与全生育期的关系。一、关于幼穗发育始期与叶龄指数的关系:据观察,所有供试品种的主茎总叶片数可分四类。七叶的为最早熟,如波塔姆等;八叶的为早熟种,如1082;九叶的为中熟种,如晋麦2148;
In order to grasp the basic law of growth and development of early, middle and late ripening wheat varieties and provide the basis for high yielding cultivation, we dissected several important periods during the development of young wheat, including the growth cone growth stage (initiation of panicle differentiation) Spikelet differentiation (including single-and double-sided), floret differentiation, pistil and stamen formation period, and the main stem of the total number of leaves and the relationship between the whole growth period. First, on the development of young panicle early age and leaf age index relationship: According to observation, the total number of main stems of all tested varieties can be divided into four categories. Aescin for the earliest cooked, such as Potam and so on; eight leaves for the precocious species, such as 1082; Jiuye for the cooked, such as Jinmai 2148;