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Beijing Review 2019年第37期62卷 3-11页

An aerial photo taken on September 4 shows villagers waiting in lines to sell tomatoes to local vegetable processing factories in Sandaoqiao 丁own in the Hetao Irrigation Area in north Ghina’s Inner Mongolia Autonomous Region. The International Commission on Irrigation and Drainage added the area to its World Heritage Irrigation Structures list that day.

关键词： fertile LAND factories local vegetable

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Production of fertile transgenic wheat plants by micropro- jectile bombardment of immature embryos

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Progress in Natural Science:Materials International 1997年第3期 82-90页

作者：陈乐玫章力建郭宝燕贾士荣许宁赵南明

The plasmid pBI121 was introduced by microprojectile bombardment into immature embryos of four spring wheat cultivars, i.e. Jin 2148, 7506, 7606, 5926, and transformation parameters such as the bombardment velocity, tungsten particle diameter, DNA-coated particle loading way and DNA concentration were studied. fertile transgenic plants were regenerated through the way of embryogenesis from the above transformed scutellar cells of the immature embryos of three (7506, 7606, 5926) out of four cultivars. The transformation frequency reached 0. 6% , 0.6% and 1.4%, respectively. The presence of the β-glucuronidase (GUS) gene in both R0 and R1 plants was verified by Southern analyses. G418 resistance in transformed Rl plants showed that the neomycin pbosphotransferase (NPTⅡ) gene segregated as a dominant Mendelian trait in Rl plants.

关键词： wheat immature embryos microprojectile bombardment fertile transgenic plants.

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Earth Mothers

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ChinAfrica 2019年第1期11卷 34-35页

作者： Francois Essomba 不详

All around Zamakoue,a small town about 35km from Cameroon's capital Yaounde,there are vast manioc fields that extend as far as the eye can *** entire area is under the responsibility of a single woman,Ernestine *** fertile manioc fields provide her with a substantial income and contribute effectively to her personal growth,as well as that of her family as a ***, or cassava,is a tropical vegetable widely grown and consumed in Africa.

关键词： around Zamakoue fertile manioc contribute effectively

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Correlation between Sex Stages and Leaf Numbers in <i>Arisaema tosaense</i>Makino (Araceae)

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American Journal of Plant Sciences 2012年第1期3卷 114-118页

作者： Yuko Muramatsu Kanako Matsuyama Hiroshi Hayakawa Yukio Minamiya Katsura Ito Ryo Arakawa Tatsuya Fukuda 不详

Arisaema tosaense Makino develops either 1 or 2 leaves during both the male and female phases. To clarify the relationship between growth stage (sexual stage) and leaf number in this species, we conducted morphological analysis using A. tosaense, A. japonicum Bulme, A. sikokianum French. & Sav., and A. ringens (Thunb.) Schott. We found that increase in size of pseudostem of these Arisaema species is correlated to changes in the growth stage from sterile to male and from male to female phases. In particular, 1-leaf individuals of A. tosaense appeared at the beginning of both male and female phases, suggesting that they contribute to the earlier appearance of the fertile phase from sterile

关键词： Araceae Arisaema tosaense fertile Phases Leaf Number Morphology

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