Study on the Growth Regularity of Progeny Seedlings of Different Superior Trees of Sapindus mukorossi
In order to select and breed fine varieties of Sapindus mukorossi,the seeds of ten superior trees of Sapin-dus mukorossi were collected for sowing test.The growth indexes of the progeny seedlings of superior trees of Sap-indus mukorossi were determined,and the variation regularity of growth traits of Sapindus mukorossi at seedling stage was preliminarily revealed.The results showed that there were significant differences in the growth indexes of different superior tree progeny.The average seedling height of one-year-old progeny seedlings of each superior tree was 210.35 cm.There were significant differences in seedling height of progeny seedlings of different superior trees,among which the seedling height of progeny seedlings of superior tree No.3 was the highest.The ground di-ameter growth rate of the progeny seedlings of ten superior trees was also inconsistent.The ground diameters of su-perior trees No.3,No.5 and No.8 increased faster than that of other superior trees.The average value of total bio-mass of different superior trees was 127.38 g,and the dry weights of superior trees No.6 and No.1 were significant-ly higher than that of other superior trees.The strong seedling indexes of the progeny seedlings of superior trees No.6,No.8 and No.1 were higher than that of other superior trees.