Pollination biology studies of the endangered herbal medicines Dendrobium chrysotoxum were conducted in natural pollination conditions using flower observation,pollinator observation and artificial pollination experim...Pollination biology studies of the endangered herbal medicines Dendrobium chrysotoxum were conducted in natural pollination conditions using flower observation,pollinator observation and artificial pollination experiments.Populations of D.chrysotoxum with fragrance and nectar were pollinated by Ctenoplectra davidi Valhalla(Hymenoptera:Apidae)species.The floral structure of D.chrysotoxum adapted precisely to its pollinators.Flowers had a low capsule setting(0.17%)under natural conditions.However,compared to open pollination,artificial pollination experiments showed a significant increase in capsule setting,and D.chrysotoxum was cross-compatible and self-compatible,but there was pollinator limitation also.This study will provide important information for the preservation of this endangered species.展开更多
In order to study the effects of different fertilizers on the growth and yield of Moringa seedlings,potted Moringa seedlings were randomly divided into 5 treatments:nitrogen(treatment 1),phosphorus(treatment 2),potass...In order to study the effects of different fertilizers on the growth and yield of Moringa seedlings,potted Moringa seedlings were randomly divided into 5 treatments:nitrogen(treatment 1),phosphorus(treatment 2),potassium(treatment 3),compound fertilizer(treatment 4)and non-fertilization(CK).The ground diameter,plant height,leaf,sprouting,crown width and yield of Moringa seedlings were measured one month later.The results showed that treatment 3 was beneficial to the growth of ground diameter of Moringa seedlings,which was 24.4%higher than CK(P<0.05).Treatment 4 significantly promoted plant height and leaf yield of moringa seedlings,being 56.8%and 76.9%higher than those of CK,respectively(P<0.05).Treatment 2 significantly promoted the sprouting of Moringa seedlings,being 53.8%higher than that of CK(P<0.05).Fertilization treatments had no significant effect on leaf size of Moringa seedlings(P>0.05).展开更多
基金funded by the Basic Research Priorities Program of Yunnan Provincethe Applied Basic Research Programs of Science and Technology Department for Young Scholars(No.2019FD005)Technological Innovation Talents Cultivation Project of Yunnan Province(No.202205AD160043)Technological Innovation Talents Cultivation Project of Dehong City(No.2021RC007).
文摘Pollination biology studies of the endangered herbal medicines Dendrobium chrysotoxum were conducted in natural pollination conditions using flower observation,pollinator observation and artificial pollination experiments.Populations of D.chrysotoxum with fragrance and nectar were pollinated by Ctenoplectra davidi Valhalla(Hymenoptera:Apidae)species.The floral structure of D.chrysotoxum adapted precisely to its pollinators.Flowers had a low capsule setting(0.17%)under natural conditions.However,compared to open pollination,artificial pollination experiments showed a significant increase in capsule setting,and D.chrysotoxum was cross-compatible and self-compatible,but there was pollinator limitation also.This study will provide important information for the preservation of this endangered species.
文摘In order to study the effects of different fertilizers on the growth and yield of Moringa seedlings,potted Moringa seedlings were randomly divided into 5 treatments:nitrogen(treatment 1),phosphorus(treatment 2),potassium(treatment 3),compound fertilizer(treatment 4)and non-fertilization(CK).The ground diameter,plant height,leaf,sprouting,crown width and yield of Moringa seedlings were measured one month later.The results showed that treatment 3 was beneficial to the growth of ground diameter of Moringa seedlings,which was 24.4%higher than CK(P<0.05).Treatment 4 significantly promoted plant height and leaf yield of moringa seedlings,being 56.8%and 76.9%higher than those of CK,respectively(P<0.05).Treatment 2 significantly promoted the sprouting of Moringa seedlings,being 53.8%higher than that of CK(P<0.05).Fertilization treatments had no significant effect on leaf size of Moringa seedlings(P>0.05).
