Scopus Indexed Paper

Paper Details


Title
Fine roots for uptake and translocation of zinc into young leaves as important traits for zinc efficiency of maize genotypes
Abstract
Suitable germplasm and breeding for zinc (Zn)-efficient genotypes has been prioritized to combat Zn deficiency problem. Six maize genotypes were grown in a nutrient solution with or without Zn to identify genotype tolerance to low Zn and its mechanism. Zhongnong 99 was found to be about 2-fold more Zn-efficient than L69 × 178. Young shoot Zn concentration and content was significantly correlated with Zn efficiency (ZE). Furthermore, Zn-efficient genotype as Zhongnong 99 distributed more Zn into young parts of shoot and also developed longer and thinner roots (≤ 0.2 mm) under -Zn conditions than inefficient genotypes. The close relationship (0.82***, 0.88***, 0.90***) between Zn content of young shoots and fine roots indicated that fine roots (≤ 0.2 mm) contributed more efficient Zn uptake into old parts which distributed to young parts. In conclusion, the analysis of young shoots and fine roots (≤ 0.2 mm) represent a suitable screening technique for ZE evaluation of under -Zn conditions.
Keywords
Fine roots, maize, screening technique, zinc deficiency, zinc efficiency
Authors
MD. Rezaul Karim, Di Tian, Yue-Qiang Zhang, Fan-Jun Chen & Chun-Qin Zou
Phone
Journal or Conference Name
Communications in Soil Science and Plant Analysis
Publish Year
2018
Indexing
Scopus