The archesporial cell is formed when the alabastrum length reaches 0 . 5 cm or so and the macrosporocyte develops from the archesporial cell directly .
金针菜的孢原细胞在花蕾长0.5cm左右时形成,孢原细胞直接发育为大孢子母细胞。
The diameter of the alabastrum was about 1.0 mm while the ovary closed , and the closed ovary was about 75.9 % of the all flowers .
子房闭合时,花蕾的直径在1.0mm左右,闭合的花蕾约占花蕾总数的75.9%。
Every alabastrum producing embryos was about half of the CK when EMS dose was 2.5 mmol · L ~ ( - 1 ) and the duration of EMS treatment was 24 h. According to medial lethal concentration ( LC_ ( 50 )), this EMS dose and duration had important applied value on microspore mutagenesis in vitro in Brassica napus by EMS treatment .
The technique of in vitro culture and industrialization of seedling production of R. hybridum was developed from the explants taken from alabastrum with pedicel . The results showed that on the solid ER medium supplemented with ZT 6 mg · L ~ ( - 1 ) and IAA 1 mg · L ~ ( - 1 ) for inducing the germination adventitious buds , the inducing rate was 94 % .