Reciprocal grafting between early maturing and normal maturing olive varieties: Preliminary effects on the nature of juvenility and flowering
Reciprocal grafting between early maturing and normal maturing olive varieties: Preliminary effects on the nature of juvenility and flowering
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早熟和正常成熟橄榄品种之间的相互嫁接：对幼年和开花性质的初步影响
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
J. Bradford
中科院分区：
文献类型：
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作者：
N. Malik;J. Bradford
用早熟(1~2年)幼树(18月龄)与正常成熟(4~6年)品种进行互作嫁接。早熟品种‘Arbequina’的接穗嫁接在正常成熟品种‘Manzanillo’的幼嫩砧木上，在温室条件下生长7个月，在诱导开花的冷期开花。相反，来自曼萨尼罗幼树的接穗嫁接在早熟的‘Arbequina’上，在类似的条件下未能开花。此外，取自成熟树(L712；4年后开花)的接穗，当嫁接到正常成熟品种‘Manzanillo’和May‘的幼树砧木上并允许生长8个月时，在诱导开花的条件下也会开花。结果表明，一旦橄榄枝成熟或接受开花刺激，即使在嫁接到尚未成熟的植物根部后形成的节上，它也会继续开花。显然，橄榄根几乎不能控制新梢接受冷刺激以诱导橄榄成花的能力。然而，根可能在橄榄的花或果实发育中发挥作用。
Reciprocal grafting was performed between young trees (18 months old) of early maturing (within 1-2 year) and normal maturing (4-6 years) varieties of olives. Scions of an early maturing variety ‘Arbequina’ grafted on young rootstocks of a normal maturing variety ‘Manzanillo’, and grown for 7 months in greenhouse conditions, produced flowers when subjected to flower inducing chilling period. Conversely, scions from juvenile ‘Manzanillo’ trees grafted on early maturing ‘Arbequina’ failed to produce flowers under similar conditions. In addition, scions taken from a mature tree (L712; that flowered after 4 years) when grafted on juvenile rootstock plants of normal maturing varieties ‘Manzanillo and Mission’ and allowed to grow for 8 months also produced flowers when subjected to flower inducing conditions. The results indicate that once an olive shoot has been matured or conditioned to receive flowering stimulus, it continues to produce flowers even on nodes that were formed after it had been grafted on roots of a plant that had not been matured. Apparently, olive roots do little to control the ability of the shoot to be receptive to chilling stimulus for flower induction in olives. However, the possibility exists that the roots may play role in flower or fruit development in olives.