The effect of developmental stage on direction of translocation of photosynthate in<i>Vitis vinifera</i>

Hale, Charles A.; Weaver, Robert J.

doi:10.3733/hilg.v33n03p039

Cited by 173 publications

(117 citation statements)

References 22 publications

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“…These results verify those found by Hale & Weaver (1962) and Koblet (1977 Considering all criteria discussed, it would seem that ph~2 §.Ynih~1'!.t~~-s>IJJle-apiC·ar:-rn:TdC!_!~=~~~es wer~ _ _grn_gua)!Y . .…”

Section: Specific Activitysupporting

confidence: 81%

“…phenomerioif occurred at all.stages and is in agreement with the general conception that young, small leaves favour their own growth and development (Hale & Weaver, 1962;Kriedemann & Lenz, 1972;Koblet, 1977;Yang & Hori, 1980), while mature leaves nourish the fruits and add to the reserves (Hale & Weaver, 1962;Kriedemann et al, 1970;Quinlan & Weaver, 1970;Koblet, 1977;Yang & Hori, 1980). Treated part excluded : When the treated part is excluded from the calculations (Fig.…”

Section: Percentage Activitysupporting

confidence: 57%

“…Several investigators found that the distribution of photosynthetic products within the grapevine varies according to the different stages of growth and development (Hale & Weaver, 1962;Kriedemann, Kliewer & Harris, 1970;Quinlan & Weaver, 1970;Koblet & Perret, 1971;Koblet, 1975;1984;Kriedemann, 1977;De la Harpe, 1984). However, these studies dealt mainly with autoradiographic techniques in which radioactivity was not quantitatively determined.…”

mentioning

confidence: 99%

“…It is generally accepted that the leaves of the grapevine start exporting their photosynthetates when 30% to 50% of their final size is reached (Hale & Weaver, 1962;Koblet, 1977;Yang & Hori, 1980). Young, rapidly expanding leaves are active sinks for photosynthetic products (Hale & Weaver, 1962; Leonard & Weaver according to Hale & Weaver, 1962; Currie according to Koblet, 1977;Koblet, 1977).…”

mentioning

confidence: 99%

“…Young, rapidly expanding leaves are active sinks for photosynthetic products (Hale & Weaver, 1962; Leonard & Weaver according to Hale & Weaver, 1962; Currie according to Koblet, 1977;Koblet, 1977). From 50% to 75% of final size for the leaves of the main and lateral shoots, respectively, only an export of carbohydrates was found (Koblet, 1969).…”

mentioning

confidence: 99%

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Distribution of 14C-Photosynthetate in the Shoot of Vitis vinifera L. cv Cabernet Sauvignon I. The Effect of Leaf Position and Developmental Stage of the Vine

Hunter¹,

Visser²

2017

SAJEV

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The distribution of photosynthetates, originating in leaves of different parts of the shoot of Vi tis vinifera L. cv Cabernet Sauvignon at berry set, pea size, veraison and ripeness stages, was investigated. Specific photosynthetic activity of the "CO,-treated leaves gradually decreased during the season. Photosynthetates were hoarded in the leaves at berry set, but were increasingly diverted to the bunches after that. The apical leaves displayed the Itlghes.t.photosynthesis. The leaves opposite and below the bunches accumulated very little photosynthetafes, especially from veraison to ripeness. Redistribution of photosynthetates among the basal, middle and apical leaves was generally very restricted at all stages. Multidirectional distribution from the site of application of 14 CO, occurred at berry set stage, while from pea size to ripeness photosynthetates were mainly translocated basipetally. Highest accumulation in the bunches occurred at veraison, while the basal leaves were primarily used to nourish the bunch.

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Section: Specific Activitysupporting

confidence: 81%

Section: Percentage Activitysupporting

confidence: 57%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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