Method for accelerating breeding of new lotus varieties
A technology for new varieties and lotus seeds, which is applied in the fields of botanical equipment and methods, horticulture, plant cultivation, etc., can solve the problems of long breeding procedures for new varieties of lotus, and achieve the effects of improving the breeding efficiency and speeding up the breeding time.
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Embodiment 1
[0023] Embodiment 1 A kind of method of accelerating the breeding of new varieties of lotus
[0024] (1) Harvest hybrid lotus seeds
[0025] In late July 2013, the seed lotus seeds that were hybridized at the end of June and the beginning of July were successively harvested after the yellow-brown stage. Using Jianxuan 17, Kongkonglian 3, Kongkonglian 36 and Mantianxing as parents for reciprocal or self-crossing, a total of 84 hybrid lotus seeds were harvested.
[0026] (2) Broken shell and accelerated germination
[0027] The harvested hybrid lotus seeds are immediately broken from their shells to accelerate germination, and after 10 days, they are planted after they grow roots and leaves.
[0028] (3) Colonization
[0029] On August 6, the seedlings were planted in plastic pots with a depth of 13 cm and a diameter of 35 cm, one seedling per pot. In autumn (September 15-20), the temperature drops and then the pots are placed in a greenhouse for growth.
[0030] (4) Enduri...
experiment example 1
[0043] Experimental Example 1 Effect of Harvesting Period of Hybrid Lotus Seeds on Accelerated Lotus Breeding
[0044] The seed lotus seeds (Jianxuan No. 17 self-crossed by the parent) that were hybridized in that year were harvested at the green seed stage, yellow brown seed stage, and sunspot stage, and the shells were broken to accelerate germination, and the germination and seedling growth were observed. 20 hybrid lotus seeds were used for each treatment, repeated three times.
[0045] The results show (Table 1), if the lotus seeds are harvested at the green stage, if the harvest is too early, the lotus seeds will not germinate; if the lotus seeds are harvested at the yellow-brown stage and the sunspot stage, the lotus seeds can germinate, grow roots and leaves, and obtain seedlings. Tests have shown that only lotus seeds harvested in the yellow-brown stage and thereafter (sunspot stage) can germinate normally and obtain seedlings.
[0046] Table 1 Statistical results of ...
experiment example 2
[0048] Experimental Example 2 Effect of Sowing Time of Hybrid Lotus Seeds on Accelerated Lotus Breeding
[0049] On July 26, August 6, August 16, and August 26, the hybrid lotus seeds of the yellow-brown lotus (Jianxuan No. 17 was self-crossed by the parent) were harvested, and the shells were broken immediately to accelerate germination. After the roots and leaves emerge, they are planted in plastic pots with a depth of 13 cm and a diameter of 35 cm, one seedling per pot, and put the pots in a greenhouse in autumn to observe their lotus formation. 20 hybrid lotus seeds were used for each treatment, repeated three times.
[0050]The results showed (Table 2), the lotus seeds harvested on July 26, August 6, and August 16 had a longer growth period, and they could bear small lotuses in the same year; especially on July 26 and August The seedlings grown from the lotus seeds harvested on August 6 had more nodes, and the lotus root was larger, which was more conducive to overwinter...
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