Evaluation of the Major Characteristics of IRRDB 1981 Rubber Tree Germplasm Planted in 1987
Evaluation of the Major Characteristics of IRRDB 1981 Rubber Tree Germplasm Planted in 1987
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发表时间：
2006
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通讯作者：
Catas Danzhou
中科院分区：
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作者：
Catas Danzhou
对1987年种植的1981份IRRDB橡胶树种质的树围、产胶量、乳管数和抗风性进行了观察。结果表明，不同种质间的差异极显著。62号基因型具有较大的树围、较高的产胶量和抗风性，可作为育种材料用于扩大现有无性系的遗传基础。对81个基因型的树围、产胶量和乳管数的SAS相关分析表明，树围与产胶量呈极显著正相关（r=0.263*），乳管轮数和乳管数与产胶量呈极显著正相关（r=0.631**，r=0.422**）。
The girth, latex yield, laticifer number and wind tolerance of 1981 IRRDB rubber tree germplasm planted in 1987 were observed. The results showed much obvious difference between accessions of the germplasm. Genotype 62 of the accessions was found to have larger girth, higher latex yield and windfirmness, and could be utilized as breeding material in the breeding program to widen the genetic base of the existing clones. The SAS correlation analysis of the girth, latex yield and laticifer number of 81 genotypes indicated that the girth had a significant correlation with latex yield (r=0.263*) and that both laticifer rings and laticifer number showed a highly significant correlation with latex yield (r=0.631**, r=0.422**).