Rootstock influence (1965–1980) on yield, yield efficiency and tree size of ‘Bartlett’ and ‘d'Anjou’ pear
Tài liệu tham khảo
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Hedrick, 1921, The Pears of New York, Rep. N.Y. Agric. Exp. Stn., 2
Larsen, 1982, Effects of pear rootstock on tree nutrient levels, tree growth, fruiting and certain disorders, 239
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Westwood, 1978
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