CAJ | 학술논문

[目的]通过对'富士×嘎拉'正反交组合F1代杂种苗叶长、叶宽、分枝数等8个表观性状特征测定与评价,为苹果杂种实生苗的早期选择提供依据,加速育种进程.[方法]从每个组合4 000余株杂种苗中随机抽取300株,对8个表观性状特征进行测定,运用统计分析的方法,对各性状变异程度进行了分析与评价.[结果]结果表明,F_1代杂种苗叶片大小分离程度高,变异系数最大,与叶长、叶宽、叶形指数变异系数差异显著,叶宽分离程度次之,变异系数与叶长、叶形指数变异系数差异显著,而叶长、叶形指数变异系数较小,分离程度小;苗高、干径、节数及分枝数变异系数大小为:分枝数＞苗高＞干径＞节数,其中分枝数、苗高变异系数之间无显著差异,但均与干径、节数变异系数差异显著,分枝数、苗高分离程度好.[结论]叶片大小、叶宽、苗高及分枝数可作为杂种苗早期选择的表观性状指标.
[목적]통과대'부사×알랍'정반교조합F1대잡충묘협장、협관、분지수등8개표관성상특정측정여평개,위평과잡충실생묘적조기선택제공의거,가속육충진정.[방법]종매개조합4 000여주잡충묘중수궤추취300주,대8개표관성상특정진행측정,운용통계분석적방법,대각성상변이정도진행료분석여평개.[결과]결과표명,F_1대잡충묘협편대소분리정도고,변이계수최대,여협장、협관、협형지수변이계수차이현저,협관분리정도차지,변이계수여협장、협형지수변이계수차이현저,이협장、협형지수변이계수교소,분리정도소;묘고、간경、절수급분지수변이계수대소위:분지수＞묘고＞간경＞절수,기중분지수、묘고변이계수지간무현저차이,단균여간경、절수변이계수차이현저,분지수、묘고분리정도호.[결론]협편대소、협관、묘고급분지수가작위잡충묘조기선택적표관성상지표.
Variations of four foliar and four branchy morphological traits such as leaf length, leaf width and shoot number of the trees in the F1 seedlings of the 'Fuji × Gala' apple cross and its reciprocal cross were surveyed in order to propose the proper traits conveniently used for the early selection as to improve the efficiency of the apple breeding. Every 300 seedlings were arbitrarily chosen from 4 000 seedlings of each cross to measure the eight morphological traits and the statistics were used to analyze significance of variation among these eight traits. The results showed that variation and coefficient of variation (CV) of the leaf size was very high among the seedlings. It was significant with that of the leaf width and of the leaf index. Variation and CV of the leaf width were moderate among the seedlings. It was significant with that of the leaf length and of the leaf index. Variation and CV of the leaf length and of the leaf index were small among the seedlings. CV of the seedling height, the trunk diameter, the node number and the shoot number were in the order of the shoot numbers > the seedling height > the trunk diameter > the node numbers. CV of the seedling height and that of the shoot numbers presented non-significant among them. But these two indictors had significance with that of the trunk diameter and the node number. Thus CV of the seedling height and that of the shoot numbers was high. The leaf size, leaf width, leaf height, and shoot numbers were easily identified and conveniently used for early selection.