期刊
JOURNAL OF PLANT INTERACTIONS
卷 11, 期 1, 页码 1-4出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/17429145.2015.1125534
关键词
Foliar spray; calcareous soil; chlorosis correction; biofortification
Effectiveness of different iron (Fe) foliar sprays for leaf chlorosis correction and grain Fe boosting was studied in field peas under Fe deficiency. No chlorophyll reduction was observed in Fe deficient plants treated with foliar sprays. EDDHA [ethylenediamine- N, N'-bis(2-hydroxyphenylacetic acid)] followed by FeSO4 (73.7 mg/l Fe) treated at the start of flowering was most responsive in correcting chlorosis and increasing shoot dry biomass in peas. Inductively coupled plasma-atomic emission spectroscopy data showed significant increase of Fe in grains while treated with all foliar sprays at the time of grain filling in Fe-deficient plants. Among them, FeSO4 (73.7 mg/l Fe) was the most efficient in biofortifying Fe in mature grain under Fe deficiency in peas. Results also pinpoint that flowering is a suitable time for applying foliar sprays to boost Fe in mature grains. Taken together, application of Fe foliar sprays facilitated both chlorosis correction and Fe boosting in peas and can be further used by breeders and farmers.
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