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采用U*12(1210)均匀设计对滇青冈种子进行微波辐射与GA3、IBA和IAA浸种试验,了解不同因素水平及其组合对滇青冈幼苗根长和叶长指标及生物量的影响。结果表明,(1)处理组合的根长、叶柄、叶长和叶宽18.35~24.80cm、0.43~0.63cm和3.27~6.32cm、1.53~2.71cm,地上及地下部分生物量分别为0.231~0.335g/株、0.147~0.231g/株;(2)影响根长的关键因子是GA3浸种,其高浓度的溶液浸种可促进根长的生长;(3)影响叶发育和地下烘干重的关键因子均是IAA浸种,适宜浓度的IAA溶液浸种促进叶发育的同时提高生物量的积累;(4)根长和地下烘干重的理论优水平组合均为无辐射,GA3和IAA的浓度分别为1.00g/L和0.40g/L,与实际一致,即GA3和IAA在促进根的生长的同时也提高生物量积累;(5)影响地上烘干重的关键因子是IBA浸种(负效应),其和微波辐射种子抑制根的生长和生物量的积累,但微波辐射却促进叶的发育。
The U × 12 (1210) uniform design was used to study the effects of different factors and their combinations on the root length, leaf length and biomass of C. japonica seedlings under microwave irradiation and GA3, IBA and IAA soaking. The results showed that: (1) Root length, petiole, leaf length and leaf width ranged from 18.35 to 24.80 cm, from 0.43 to 0.63 cm and from 3.27 to 6.32 cm, from 1.53 to 2.71 cm, and from 0.231 to 0.335 g / plant, 0.147 ~ 0.231g / plant; (2) The key factor influencing the root length is GA3 soaking, and its high concentration of solution soaking can promote the growth of root length; (3) The key to the leaf development and underground drying weight IAA soaking with proper concentration of IAA promoted leaf development and biomass accumulation at the same time. (4) The theoretical optimum level combinations of root length and underground drying were all non-radiation, and the concentrations of GA3 and IAA were 1.00g / L and 0.40g / L, respectively, consistent with the actual, that GA3 and IAA promote root growth while also increasing biomass accumulation; (5) The key factor affecting the dry weight on the ground is IBA soaking (negative effect) The seeds and microwave radiation inhibited root growth and biomass accumulation, but microwave radiation promoted leaf development.