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Regulation of Flower Formation and Alternate Bearing in Apple (Malus x domestica Borkh.).

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Regulation of Flower Formation and Alternate Bearing in Apple (Malus x domestica Borkh.)./
Author:	ELsysy, Mokhles Ahmed Mokhles.
Description:	1 online resource (144 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 79-03(E), Section: B.
Contained By:	Dissertation Abstracts International79-03B(E).
Subject:	Physiology. -
Online resource:	click for full text (PQDT)
ISBN:	9780355255065

Regulation of Flower Formation and Alternate Bearing in Apple (Malus x domestica Borkh.).
ELsysy, Mokhles Ahmed Mokhles.

Regulation of Flower Formation and Alternate Bearing in Apple (Malus x domestica Borkh.). - 1 online resource (144 pages)

Source: Dissertation Abstracts International, Volume: 79-03(E), Section: B.

Thesis (Ph.D.)--Purdue University, 2017.

Includes bibliographical references

Apple fruit production is highly dependent on flowering frequency. Irregular flowering leads to biennial bearing. Understanding different factors affecting flower formation in apple is essential to overcome biennial bearing, and to ensure successful annual production of some high value cultivars that show the biennial bearing phenomenon such as 'Honeycrisp.'

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355255065Subjects--Topical Terms:

673386
Physiology.
Index Terms--Genre/Form:

554714
Electronic books.

Regulation of Flower Formation and Alternate Bearing in Apple (Malus x domestica Borkh.).
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100 1 $a ELsysy, Mokhles Ahmed Mokhles. $3 1191172
245 1 0 $a Regulation of Flower Formation and Alternate Bearing in Apple (Malus x domestica Borkh.).
264 0 $c 2017
300 $a 1 online resource (144 pages)
336 $a text $b txt $2 rdacontent
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500 $a Source: Dissertation Abstracts International, Volume: 79-03(E), Section: B.
500 $a Adviser: Peter M. Hirst.
502 $a Thesis (Ph.D.)--Purdue University, 2017.
504 $a Includes bibliographical references
520 $a Apple fruit production is highly dependent on flowering frequency. Irregular flowering leads to biennial bearing. Understanding different factors affecting flower formation in apple is essential to overcome biennial bearing, and to ensure successful annual production of some high value cultivars that show the biennial bearing phenomenon such as 'Honeycrisp.'
520 $a In these studies, we investigated the effect of fruit number per tree and per spur, fruit weight and seed number on 'Honeycrisp' flower formation. In addition, we studied the effect of different combinations of defoliation and fruiting treatments on flower formation of two different cultivars with different bearing habits: 'Honeycrisp', a biennial cultivar, and 'Gala', an annual cultivar. Moreover, we examined the effect of single fruit per spur on spur quality, leaf gas exchange parameters and flower formation of six different apple cultivars varying in their bearing habits.
520 $a Furthermore, we explored the effects of local gibberellins, auxin and defoliation treatments on both local flower formation and the expression level of MdTFL1 and MdFT1, 2. Our data suggest that apple fruiting spurs are semi-autonomous organs, as flower formation is related to the availability of resources within the spurs and within the whole tree. Hence, fruit number per spur and per tree, bourse leaves' stomatal conductance and transpiration, and bourse length correlate negatively with flower formation. Moreover, GA 4+7 and defoliation inhibit flower formation, as GA 4+7 upregulated MdTFL1 and defoliation downregulated MdFT1, 2. On the other hand, bourse leaves play a major role in affecting flowering, presumably by both producing and transporting flower formation signals. Moreover, thinning apple spurs to single-fruit per spur could overcome the local inhibition effects of fruiting and reduce biennial bearing.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Physiology. $3 673386
650 4 $a Plant sciences. $3 1179743
650 4 $a Horticulture. $3 1058420
655 7 $a Electronic books. $2 local $3 554714
690 $a 0719
690 $a 0479
690 $a 0471
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a Purdue University. $b Horticulture. $3 1191173
773 0 $t Dissertation Abstracts International $g 79-03B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10615370 $z click for full text (PQDT)