Winter drought stress can delay flowering and avoid immature fruit loss during late-season mechanical harvesting of 'Valencia' oranges.

Melgar J. C.; Albrigo L. G.; Syvertsen J. P.

首页> 外文期刊>Acta Horticulturae >Winter drought stress can delay flowering and avoid immature fruit loss during late-season mechanical harvesting of 'Valencia' oranges.

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Winter drought stress can delay flowering and avoid immature fruit loss during late-season mechanical harvesting of 'Valencia' oranges.

机译：冬季干旱胁迫可以延迟开花，并避免在后期“机械式”采摘“巴伦西亚”橘子时失去未成熟的果实。

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We determined if winter drought stress could delay flowering and fruit development of immature 'Valencia' sweet oranges to avoid young fruit loss during late-season mechanical harvesting. Beginning in December over three consecutive seasons (2007-2009), Tyvek, a water-resistive barrier material, was used as a rain shield groundcover under 13- to 15-year-old trees. There were three treatments: (1) drought=no irrigation and covered soil, (2) rain only=no irrigation, no cover and (3) normal irrigation with rain and no cover. Covers were removed in February or March and normal irrigation and fertilization were resumed. The drought stress did not affect fruit yield, size, percentage juice or juice quality of the current crop harvested in May and June relative to continuously irrigated trees. Drought stress delayed flowering by 2-4 weeks so that the immature fruit for next season's crop were smaller than on continuously irrigated trees during June, but fruit growth caught up by September. During mechanical harvesting, previously drought-stressed trees lost fewer young fruit than continuously irrigated trees. Thus, winter drought stress effectively delayed flowering and avoided young fruit loss during late-season mechanical harvesting without negative impacts on yield or fruit quality of 'Valencia' orange trees.

机译：我们确定了冬季干旱胁迫是否可以推迟不成熟的“巴伦西亚”甜橙的开花和果实发育，从而避免在后期机械收割期间损失年轻的果实。从12月开始的连续三个季节（2007-2009年）开始，特卫强（一种防水阻隔材料）被用作13至15岁树下的防雨地坪。共有三种处理方法：（1）干旱=不灌溉和覆盖土壤，（2）仅降雨=不灌溉，没有覆盖，以及（3）正常灌溉，有雨且没有覆盖。 2月或3月取下了覆盖物，恢复了正常的灌溉和施肥。相对于连续灌溉的树木，干旱胁迫并未影响5月和6月收获的当前作物的果实产量，大小，汁液百分比或汁液质量。干旱胁迫使开花期延迟了2-4周，因此下季作物的未成熟果实要比6月持续灌溉的树上的果实要小，但到9月果实的生长会赶上。在机械收割期间，以前遭受干旱胁迫的树木损失的幼果少于连续灌溉的树木。因此，冬季干旱胁迫有效地延迟了开花并避免了后期机械收割期间幼果的流失，而对“巴伦西亚”橙树的产量或果实品质没有负面影响。

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《Acta Horticulturae》 |2012年第965期|共6页
作者
Melgar J. C.; Albrigo L. G.; Syvertsen J. P.;
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正文语种 eng
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fruit size; fruit quality; drought stress; flower induction;

机译：果实大小;果实品质;干旱胁迫;开花诱导;

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1. Winter drought stress can delay flowering and avoid immature fruit loss during late-season mechanical harvesting of 'Valencia' oranges. [J] . Melgar J. C., Albrigo L. G., Syvertsen J. P. Acta Horticulturae . 2012,第965期

机译：冬季干旱胁迫可以延迟开花，并避免在后期“机械式”采摘“巴伦西亚”橘子时失去未成熟的果实。
2. Application of the abscission agent 5-chloro-3-methyl-4-nitro-1H-pyrazole does not affect peel integrity or postharvest decay of mechanically harvested late-season fruit of "Valencia" orange during the normal commercial harvest-to-processing period. [J] . Spann T. M, Pozo L. V, Kostenyuk I, HortScience . 2011,第7期

机译：脱落剂5-氯-3-甲基-4-硝基-1 H H-吡唑的应用不会影响“巴伦西亚”橙机械收获的后期季果的果皮完整性或收获后腐烂。正常的商业采摘期。
3. Oleocellosis injury of fruitlets from late-season mechanical harvesting of "Valencia" orange trees after different irrigation treatments does not affect internal fruit quality. [J] . Melgar J. C, Dunlop J. M, Syvertsen J. P. HortScience . 2011,第3期

机译：经过不同灌溉处理后，“ Valencia”橙树的后期机械收割对小果实的果胶质细胞的伤害不会影响内部果实的品质。
4. Extending Mechanical Harvesting of 'Valencia' Sweet Orange into the Late Season Using Winter Drought Stress [C] . J. C. Melgar, J. Dunlop, J. P. Syvertsen International citrus congress . 2010

机译：使用冬季干旱胁迫将“瓦伦西亚”甜橙的机械收获延伸到季节进入季节
5. Winter Drought Stress Can Delay Flowering and Avoid Immature Fruit Loss during Late-season Mechanical Harvesting of ‘Valencia’ Oranges [O] . Juan Carlos Melgar, Jill M. Dunlop, L. Gene Albrigo, 2010

机译：冬季干旱压力可以延迟开花，避免在“瓦伦西亚”橘子的季节机械收获期间避免未成熟的果实损失

Winter drought stress can delay flowering and avoid immature fruit loss during late-season mechanical harvesting of 'Valencia' oranges.

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