CAJ | 학술논문

以雄先型早实核桃辽宁1号为试材,通过观察照相和制作石蜡切片对雌花芽分化过程的外部形态及内部结构进行了研究.结果表明:雌花芽外部形态变化主要表现在大小、形状和鳞片的质地、颜色等方面,雌花芽内部结构主要分为5个时期,雌花芽外部形态和内部结构存在密切的关系;在成花诱导期,雌花芽较小,呈扁三角形,外被3～5层鳞片,质软、鲜绿色;在花柄分化期,雌花芽逐渐增大,为阔三角形或扁圆形,鳞片5～7层,变硬,幼叶形成;在苞片分化期,雌花芽大小和形状没有明显变化,鳞片层数增加,逐渐木质化,颜色变成黄绿色直至褐色;在花被分化期,雌花芽由褐色变成灰绿色,鳞片逐渐张开;在雌蕊分化期,雌花芽再次增大,鳞片逐渐脱落,幼叶展开.雌花芽外部形态指标可以直观地反映出内部结构的变化.这一指标可以作为判断花芽分化时期的方便、快捷、直观手段.
이웅선형조실핵도료녕1호위시재,통과관찰조상화제작석사절편대자화아분화과정적외부형태급내부결구진행료연구.결과표명:자화아외부형태변화주요표현재대소、형상화린편적질지、안색등방면,자화아내부결구주요분위5개시기,자화아외부형태화내부결구존재밀절적관계;재성화유도기,자화아교소,정편삼각형,외피3～5층린편,질연、선록색;재화병분화기,자화아축점증대,위활삼각형혹편원형,린편5～7층,변경,유협형성;재포편분화기,자화아대소화형상몰유명현변화,린편층수증가,축점목질화,안색변성황록색직지갈색;재화피분화기,자화아유갈색변성회록색,린편축점장개;재자예분화기,자화아재차증대,린편축점탈락,유협전개.자화아외부형태지표가이직관지반영출내부결구적변화.저일지표가이작위판단화아분화시기적방편、쾌첩、직관수단.
External morphology and internal anatomical structure of pistillate flower-bud of protandrous precocious walnut cultivar of 'Liaoning 1'(Juglans regia L.) were observed during bud differentiation. External morphology presented various in size, shape and squama texture and color and so on. Internal anatomical structure could be marked into five periods. A close relationship between external morphology and anatomical structure of pistillate flower-bud was found. The pistillate flower-bud were small, flat triangle, with 3-5 soft, bright green squama in flower-bud induction period ;in the pedicel differentiation stage, the pistillate flower-bud was gradually increased to broad triangle or oblate shape, the squamas added to 5-7 layers and became hard and the young leaves formed; in the period of bract differentiation, the size and shape of pistillate flower did not change obviously, its squamas had more layers and became lignifications gradually and its color varied from yellow-green to brown; in the period of perianth differentiation, the color of pistillate flower-bud changed from brown to ash-green and its squamas spread gradually; in the period of pistil differentiation, the pistillate flower bud size increased again, its squamas spread further and young leaves extended. The external morphology of pistillate flower-bud could indirectly reflect the changes of internal structure and could serve as a convenient, fast and intuitionistic indicator for flower-bud differentiation.