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Effects of Salt Stress on Root Vitality of Limonium bicolor (Bunge) Kuntze 被引量:2
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作者 林莺 范海 《Agricultural Science & Technology》 CAS 2013年第6期832-834,910,共4页
[Objective] This study aimed to investigate the effects of different salt concentrations on the root vitality of Limonium bicolor (Bunge) Kuntze. [Method] Limonium bicolor (Bunge) Kuntze was treated with 0, 100, 2... [Objective] This study aimed to investigate the effects of different salt concentrations on the root vitality of Limonium bicolor (Bunge) Kuntze. [Method] Limonium bicolor (Bunge) Kuntze was treated with 0, 100, 200 and 400 mmol/L NaCl, respectively. After two weeks, root vitality, biomass and other physiological indicators were measured. [Result] Salt stress had significant influences on the growth of roots. Root vitality of Limonium bicolor increased firstly and reduced gradually with the increase of salt concentration. [Conclusion] The results indicate that Limonium bicolor has certain salt tolerance ability at low salt concentrations; under relatively high salt concentrations, Limonium bicolor roots can maintain high vitality; however, with the continuous increase of salt concentration, Limonium bicolor roots are damaged, with decreasing vitality. 展开更多
关键词 Limonium bicolor (Bunge) Kuntze Salt stress root vitality
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Effects of Light Quality on Carbon and Nitrogen Assimilation and Root Activity of Eggplant 被引量:1
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作者 Yuefeng ZHAO Kun CHEN +2 位作者 Qinghua ZHANG Yufeng HAN Cangong HAN 《Agricultural Science & Technology》 CAS 2017年第12期2229-2231,2235,共4页
[Objective] This study was conducted to provide theoretical and data reference for high-quality high-yield production of Shangqie 1 under controlled light quality environment and light quality control of other eggplan... [Objective] This study was conducted to provide theoretical and data reference for high-quality high-yield production of Shangqie 1 under controlled light quality environment and light quality control of other eggplant varieties. [Method] With Shangqie1 as an experiment material, the effects of red light, blue light, red-blue light, red-blue light and white light(control) on the carbon-nitrogen metabolism and root vitality of eggplant were investigated. [Result] Different light quality significantly affected sugar and starch contents in leaves of eggplant. Under the red-blue light(5∶1) treatment, the sucrose, total sugar and starch contents were the highest, and the values were higher than those under the white light treatment by 3.47%, 13.61% and 33.49%,respectively. The fructose content was the highest under white light. Under red-blue light(3∶1) and red-blue light(5∶1), the nitrate nitrogen contents were higher than that under white light, indicating that compound light affects nitrate content not only by simple superposition of light quality, but also by other type of interaction effect. The free amino acid and soluble protein contents under blue, red-blue(3∶1), red-blue(5∶1) and red light treatments were all higher than those under the white light treatment, and the blue light treatment exhibited the highest values, which were higher than those under white light by 24.89% and 46.62%, respectively, with significant differences. The red-blue light(5 ∶1) treatment exhibited the highest root vitality of eggplant, which was higher than that under the white light treatment by 31.85%. The red light treatment had the second highest root vitality, which was higher than that under the white light treatment by 19.30%, followed by the red-blue light(5∶1) treatment, and the blue light treatment showed the lowest value. [Conclusion] Under red-blue light(5 ∶1) treatment, eggplant had vigorous carbon-nitrogen metabolism and the highest root vitality. 展开更多
关键词 Shangqie 1 Light quality Carbon-nitrogen metabolism root vitality
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Root morphology in response to nitrogen supply in mid-season indica rice cultivars released in different decades 被引量:7
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作者 Yikai Zhang Huizhe Chen +3 位作者 Yuping Zhang Jing Xiang Guangmei Ji Defeng Zhu 《Science China(Life Sciences)》 SCIE CAS CSCD 2017年第4期439-442,共4页
Dear Editor,Roots,as a major organ of plants,are involved in nutrient and water acquisition,and might play a vital role in yield increase and efficient N absorption with genetic improvement.Because of the great differ... Dear Editor,Roots,as a major organ of plants,are involved in nutrient and water acquisition,and might play a vital role in yield increase and efficient N absorption with genetic improvement.Because of the great differences in growth period and pattern between the old and new rice cultivars,it is difficult to clarify how genetic improvements contribute to root growth in rice. 展开更多
关键词 roots shoot vital nutrient length season breeding clarify cultivar roots
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