CAJ | 학술논문

为云杉遗传改良和种子园精细化管理提供依据，研究了粗枝云杉（ Picea asperata）球果生长发育动态趋势，并观察了其球果发育进程中的形态特征，以及球果长、腹径、鲜质量、干质量和含水率随生长期的变化规律。结果表明：球果形成初期为紫红色，成熟时变为栗褐色。从球果形成到种子成熟约145 d。速生期（4月下旬到6月中旬）球果长、腹径的生长分别占年生长量的99．20％和97．84％，长度和腹径的生长盛期是种子园肥水管理的关键时期。球果长、腹径、鲜质量、干质量随生长期的变化符合S型曲线，含水率的年变化规律为Logstic曲线。种子成熟时含水率为21．9％，且保持稳定，可作为确定种子采收时间的指标之一。可将球果发育划分为长度和腹径的生长盛期、种胚发生和生长期、失水成熟期3个阶段。
위운삼유전개량화충자완정세화관리제공의거，연구료조지운삼（ Picea asperata）구과생장발육동태추세，병관찰료기구과발육진정중적형태특정，이급구과장、복경、선질량、간질량화함수솔수생장기적변화규률。결과표명：구과형성초기위자홍색，성숙시변위률갈색。종구과형성도충자성숙약145 d。속생기（4월하순도6월중순）구과장、복경적생장분별점년생장량적99．20％화97．84％，장도화복경적생장성기시충자완비수관리적관건시기。구과장、복경、선질량、간질량수생장기적변화부합S형곡선，함수솔적년변화규률위Logstic곡선。충자성숙시함수솔위21．9％，차보지은정，가작위학정충자채수시간적지표지일。가장구과발육화분위장도화복경적생장성기、충배발생화생장기、실수성숙기3개계단。
We observed the change of morphological characters in developmental process of Picea asperata to investigate the in-fluence of dynamic tendency of growth and development of cone on controlled pollination and nutritional care of tree, and studied the growth variation patterns of cone length, cone width, fresh weight, dry weight and moisture content.The color of cone was amaranth in initial stage and brown in maturation stage.There were 145 d from cone formation to seed matura-tion.The growth of cone length and width during fast-growing period, which was the key period of fertilizer and water man-agement, accounted for 99.2%and 97.84%of annual growth, respectively.The variation of cone length, cone width, fresh weight and dry weight in growth period were accorded with S curve, whereas, the annul change of moisture content was lo-gistic curve.Moisture content of seed remained stable in maturation period ( about 21.9%) , which could be as one of inde-xes of recovery time.The development of cone could be divided into three stages including growth stage, embryogenesis and growing period, and filtration stage.