茶树经济性状在选种中的应用

来源 :茶叶科学简报 | 被引量 : 0次 | 上传用户:davidcao2008
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研究在本所试验基点即福清县东张茶树良种场进行,通过相关,回归及通径等数理统计,分析十六个小乔木型无性繁殖新品系品比试验五年资料,结果表明:茶树幼年期,它的树幅、定型叶片长度、茎粗度和第二轮一芽三叶梢重量(第一轮梢留一大叶采一芽二叶)等是选择高产株系四个最显著经济性状,可作为子代群体早期选择高产单株的主要指标;第二轮一芽三叶梢重量的轻重对产量效应最大,其次是茎粗度;明确了这四个经济性状与产量间的直接,间接效应关系;在本试验分析系统中,这四个经济性状可以决定产量变异的82.64%;利用回归方程计算理论产量名次和实际测产名次,两者相差二个位次的拟合率达68.75%。由于仅根据一个品比试验五年资料进行数理统计,其结果尚有不足之处,有待进一步验证。 The study was carried out in Fucai County, east Zhangcha tree seed market. The correlation analysis, regression and path analysis were used to analyze the data of sixteen small tree-type clonal propagation products. The results showed that young tea plantations Its tree width, length of the shape of the leaves, stem diameter and the weight of the second round of three trefoil shoots (the first round leaves one big bud and two buds) are the four most significant economies of choice for high yielding lines Traits can be used as the main index for early selection of high-yielding plantlets in the progeny population. The weight of the second tri-tip shoots in the second round has the greatest effect on the yield, followed by the stem diameter. The direct correlation between the four economic traits and the yield , The indirect effects; In the experimental analysis system, these four economic traits can determine the yield variance of 82.64%; the use of regression equations to calculate the theoretical yield rankings and the actual production test rankings, the difference between the two rankings of the rate of up to 68.75%. As a result of a statistical comparison of only five years of material statistics, the results there are still inadequacies to be further verified.
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