首页
登录
职称英语
We often think of agriculture as planting seeds and harvesting crops. But many c
We often think of agriculture as planting seeds and harvesting crops. But many c
游客
2024-02-19
31
管理
问题
We often think of agriculture as planting seeds and harvesting crops. But many crops do not come from seeds. Many kinds of trees and plants are grown from【S1】______cut from existing trees and plants. This is called grafting(嫁接) .
Farmers cut branches or young growths, called【S2】______, from one plant and place them on a related kind of plant. The branch or bud that is grafted is called a scion(接穗) . The plant that【S3】______the graft is called the root stock. Over time, the【S4】______from the two plants grow together, the grafted plant begins to【S5】______the leaves and fruit of the scion, not the root stock.
A graft can be cut in several ways. A cleft graft(割接,劈接) , for example, requires a scion with several buds on it. The bottom of the scion is cut in the【S6】______of the letter V. A place is cut in the root stock to accept the scion. The scion is then【S7】______placed into the cut on the root stock. Growth medium is put on the【S8】______to keep it wet and help the growth.
Grafting can join scions with【S9】______qualities to root stock that is strong and resists disease and insects. Some common fruit trees such as sweet cherries have to be grafted.
In an age of hightechnology agriculture, grafting is a lowtechnology method that remains【S10】______important.
A blossoms B pieces C composes D parts
E securely F extremely G buds H agreeable
I accepts J firmly K grow L desirable M produce N shape O join [br] 【S7】
选项
答案
E
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3463700.html
相关试题推荐
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
Weoftenthinkofagricultureasplantingseedsandharvestingcrops.Butmanyc
随机试题
Baby-NamingTrends[A]Overthelastfiftyyears,Americanparentshaver
Areyouplanningavacation?Ifyoulikehotandextremelydrysummers,got
[originaltext]InmanyAmericanuniversitiesthetotalworkforadegreecon
路面横向力系数SFC代表值为SFC算术平均值的上置信界限值。()
随着时代发展和科技进步,人们的生活节奏越来越快,总觉得时间不够用。一些人认为,我
药材冷藏的温度是A.0~10℃B.20~35℃C.5~20℃D.55~60℃E.
股骨下1/3骨折后,远折端向后倾斜移位,主要是由于A.股二头肌的牵拉 B.腓肠
从借款企业偿还借款的期限届满之日起的()内,债权银行应当要求保证人履行债务。A
甲汽车生产企业2021年5月生产出10辆新款汽车,其中1辆用于办公使用,2辆赠送
抑制菌体二氢叶酸合成酶的药物酰胺酶作用较强的药物是 A.磺胺类药 B.庆大霉
最新回复
(
0
)