| 摘要: |
| 选用8个平菇品种为亲本进行自交和不完全双列杂交，以80份材料对平菇产孢数量进行了研究。结果表明：平菇产孢量组合间、亚组合间差异显著，品种遗传上表现为杂合性；个别亚组合产孢量随温度下降而减少；产孢量亲子相关不显著，非加性效应占主导地位；无孢或多孢亲本通过自交或杂交均易产生无孢或少孢后代，但无孢比多孢亲本，自交比杂交可产生更多的无孢组合；产孢量与产量间呈不显著的负相关。 |
| 关键词: 平菇，产孢数量，无孢育种，遗传研究，相关分析 |
| DOI： |
| 分类号:S646.190.32 |
| 基金项目: |
|
| A Preliminary Study on the Genetic Character of Oyster Mushroom Spore-bearing Quantity |
|
WangXiaofengCuiHongwenSongGuding
|
| Abstract: |
| The oyster mushroom spore-bearing quantity (SBQ) was studied in this
paper with the parents, their inbred combinations and hybred combinations, which
originated from the parents' crossing by the Imcomplete Diallel Cross Design. The
results showed that the variances of SBQ among combinations and mini-combinations
were significant,therefore the genetic components of parents were heterosis.The SBQ of
a few mini-combinations was reduced while the thermometer went down.The correlation
between parents and progenies was insignificant.So the non-additive effect played a
predominant role.The non-and poly-spore parents were apt to produce non or less spore
progenies.However,the non-spore parents and self-crossing could produce more non-
and less-spore progenies than the poly-spore parents and crossing.So,the yield and the
SBQ had insignificantly negative correlation. |
| Key words: oyster mushroom (Pleurotus ostreatus/i>,Pl.sapidus and Pl.florida),spore-bearing quantity,genetic study,correlation |
