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Study on the Changes of Macro-element Contents and Accumulation in Fruits of Newhall and Seike Navel Orange

Li-Li Ling

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Abstract

Changes of nutrient element contents and accumulations of N,P,K,Ca,Mg and S,in fruits of 30 years-old trees of Seike navel orange(Citrus sinensis Osbeck cv Seike) and Newhall navel orange(Citrus sinensis Osbeck cv Newhall)on trifoliate orange(Poncirus trifoliata(L.)Raf.) rootstocks were studied.Results showed that during the fruit development,N,P,Mg and S contents reached the highest levels in April in fruits of both Newhall and Seike.The peak K content appeared in Sept for Newhall navel orange and July for Seike navel orange.The peak Ca contents appeared in Oct for the two varieties.The main accumulation periods of N,P,K,Mg and S in fruits were from July to Sept.for Newhall navel orange,and from June to Aug.for Seike navel orange.The main accumulation period of Ca was from Aug.to Oct.for the two varieties.

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What this paper is about

Changes of nutrient element contents and accumulations of N,P,K,Ca,Mg and S,in fruits of 30 years-old trees of Seike navel orange(Citrus sinensis Osbeck cv Seike) and Newhall navel orange(Citrus sinensis Osbeck cv Newhall)on trifoliate orange(Poncirus trifoliata(L.)Raf.) rootstocks were studied.Results showed that during the fruit development,N,P,Mg and S contents reached the highest levels in April in fruits of both Newhall and Seike.The peak K content appeared in Sept for Newhall navel orange and July for Seike navel orange.The peak Ca contents appeared in Oct for the two varieties.The main accumulation periods of N,P,K,Mg and S in fruits were from July to Sept.for Newhall navel orange,and from June to Aug.for Seike navel orange.The main accumulation period of Ca was from Aug.to Oct.for the two varieties.

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Available abstract

Changes of nutrient element contents and accumulations of N,P,K,Ca,Mg and S,in fruits of 30 years-old trees of Seike navel orange(Citrus sinensis Osbeck cv Seike) and Newhall navel orange(Citrus sinensis Osbeck cv Newhall)on trifoliate orange(Poncirus trifoliata(L.)Raf.) rootstocks were studied.Results showed that during the fruit development,N,P,Mg and S contents reached the highest levels in April in fruits of both Newhall and Seike.The peak K content appeared in Sept for Newhall navel orange and July for Seike navel orange.The peak Ca contents appeared in Oct for the two varieties.The main accumulation periods of N,P,K,Mg and S in fruits were from July to Sept.for Newhall navel orange,and from June to Aug.for Seike navel orange.The main accumulation period of Ca was from Aug.to Oct.for the two varieties.

Key concepts: Navel orange, Citrus × sinensis, Orange (colour), Horticulture, Rutaceae, Navel, Rootstock, Biology

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Study on the Changes of Macro-element Contents and Accumulation in Fruits of Newhall and Seike Navel Orange — Research Paper | ScholarLens