Indian Corn. (Scientific Books: The Origin of Indian Corn and Its Relatives) 来自 ResearchGate 喜欢 0 阅读量: 44 作者:PC Mangelsdorf,RG Reeves 摘要: Not Available DOI: 10.1126/science.92.2386.260 被引量: 233 年份: 1940 收藏
The interest among Americanists in the origin of corn has been stimulated by an early theory, long since disproved, that corn is the domesticated form of teosinte. This theory has had more influence than it deserves due to the failure of the anthropologists to understand the botanical ...
Five weeks later, at the end of October, Haskew had prepared a draft report for the Board of Regents, which declared that “an Alumni House of distinctive character and outstanding convenience is of great importance to The University and that one should be provided as soon as possible.” The...
However, its origin, formation, composition, efficacy and pharmacology remain unclear. Therefore, we have conducted on-site investigation to clarify the origin of Indian Houzao. We have dissected one male and one female domestic Indian goats in the pastoral areas of Telangana province in south-...
典例3Corn production has jumped nearly 125 percent over ___ past 25 years, while rice has increased only 7 percent.分析:句意:玉米产量在过去25年里增长了近125%,而大米只增长了7%。特指在过去的25年里。故填定冠词the。 典例4Unexpectedly, I’m facetoface with the gorilla, who begins...
Because they harvestedbountifulcrops of corn, beans and pumpkins, the Pilgrims had much tobe thankful forin thefallof 1621. They and their Indianbenefactorsheld a harvestfeastto expressgratitudefor God’sblessings. 1621年秋天,清教徒们的玉米、大麦、豆类和南瓜都获得了大丰收。他们认为在这一年,有太多...
This corn concoction—which is nearly identical to the grits eaten in the southern states of America—was originally made from whatever starches were handy, including acorns and buckwheat. However, the introduction of corn to Europe in the 16th century saw it become the dominant ingredient of pol...
On the other hand, both classes of weed can potentially exchange genes with wild relatives, which provide an additional source of adaptive variation. In this review, we survey the state of knowledge regarding the origin of agricultural weeds and their mechanisms of adaptation. We focus primarily ...
By using dot plots between Lu and each legume genome, and between close legume relatives, we reconstruct the origin of peanut chromosomes, including A. duranensis and A. ipaensis. Full size image The peanut karyotype formed largely independently from those of other legumes (Fig. 3; Supplementary...
Weeds are among the greatest pests of agriculture, causing billions of dollars in crop losses each year. As crop field management practices have changed over the past 12 000 years, weeds have adapted in turn to evade human removal. This evolutionary c