東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

FindBook

Google Book

Amazon

博客來

Chemical Induction of Budbreak in Blackberry and Blueberry Grown Under Inadequate Chilling Conditions.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Chemical Induction of Budbreak in Blackberry and Blueberry Grown Under Inadequate Chilling Conditions./
作者:	Lin, Syuan-You.
面頁冊數:	1 online resource (208 pages)
附註:	Source: Dissertations Abstracts International, Volume: 83-12, Section: B.
Contained By:	Dissertations Abstracts International83-12B.
標題:	Horticulture. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28416203click for full text (PQDT)
ISBN:	9798819337318

Chemical Induction of Budbreak in Blackberry and Blueberry Grown Under Inadequate Chilling Conditions.
Lin, Syuan-You.

Chemical Induction of Budbreak in Blackberry and Blueberry Grown Under Inadequate Chilling Conditions. - 1 online resource (208 pages)

Source: Dissertations Abstracts International, Volume: 83-12, Section: B.

Thesis (Ph.D.)--University of Florida, 2021.

Includes bibliographical references

Inadequate winter chill accumulation inhibits dormancy release and reduces budbreak in blackberry and blueberry. The objective of this study is to develop budbreak induction strategies using plant growth regulators (PGRs) and defoliants to improve fruit earliness and yield of blackberry and blueberry grown under subtropical climatic conditions.The first part of this study examined the budbreak induction effects of foliar spray of PGRs [gibberellic acid (GA3) and 6-benzyladenine (6-BA)] and defoliants [zinc sulfate (ZS), potassium thiosulfate (KTS), urea, and lime sulfur (LS)] in blackberry. The results demonstrated that GA3 is a highly effective bud dormancy-breaking agent for blackberry. However, GA3 caused cultivar-dependent flower abortion, which could be only partially mitigated by 6-BA. Among tested defoliants, urea and LS promoted budbreak, but their effectiveness appeared to depend on chill accumulation. Budbreak and fruit earliness were advanced when urea and LS were applied at the beginning of chill accumulation. By contrast, delaying the application to the end of chill accumulation increased budbreak to a greater extent, although it lessened the efficacy in advancing budbreak. Phytohormone profiling revealed the up-regulation of indole-3-acetic acid during LS-induced budbreak.The second part of this study examined the budbreak induction effects of foliar spray of PGRs [hydrogen cyanamide (HC), GA3, kinetin, abscisic acid (ABA), and 1-aminocyclopropane-1-carboxylate] and defoliants [ZS, KTS, and urea] in Southern highbush blueberry. Among the treatments, HC was the most effective budbreak induction chemical, and ZS induced intermediate budbreak between the control and HC. Other PGRs and defoliants showed no effect on budbreak. Although both HC and ZS increased jasmonic acid and methyl jasmonic acid production, only HC decreased ABA production, suggesting that down-regulation of ABA plays a key role in budbreak induction.Our results suggest that, in blackberry, urea is most recommended for the commercial implementation, because of its high effectiveness, consistent efficacy, low application cost, and favorable safety profile. Urea could be an important adaptation tool for subtropical blackberry production. In blueberry, HC appears to be by far the most effective budbreak induction chemical.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798819337318Subjects--Topical Terms:

555447
Horticulture.
Subjects--Index Terms:

DefoliationIndex Terms--Genre/Form:

542853
Electronic books.

Chemical Induction of Budbreak in Blackberry and Blueberry Grown Under Inadequate Chilling Conditions.
LDR:03664nmm a2200373K 4500 001 2362490
005 20231102121803.5
006 m o d
007 cr mn ---uuuuu
008 241011s2021 xx obm 000 0 eng d
020 $a 9798819337318
035 $a (MiAaPQ)AAI28416203
035 $a AAI28416203
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Lin, Syuan-You. $3 3703218
245 1 0 $a Chemical Induction of Budbreak in Blackberry and Blueberry Grown Under Inadequate Chilling Conditions.
264 0 $c 2021
300 $a 1 online resource (208 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertations Abstracts International, Volume: 83-12, Section: B.
500 $a Advisor: Agehara, Shinsuke.
502 $a Thesis (Ph.D.)--University of Florida, 2021.
504 $a Includes bibliographical references
520 $a Inadequate winter chill accumulation inhibits dormancy release and reduces budbreak in blackberry and blueberry. The objective of this study is to develop budbreak induction strategies using plant growth regulators (PGRs) and defoliants to improve fruit earliness and yield of blackberry and blueberry grown under subtropical climatic conditions.The first part of this study examined the budbreak induction effects of foliar spray of PGRs [gibberellic acid (GA3) and 6-benzyladenine (6-BA)] and defoliants [zinc sulfate (ZS), potassium thiosulfate (KTS), urea, and lime sulfur (LS)] in blackberry. The results demonstrated that GA3 is a highly effective bud dormancy-breaking agent for blackberry. However, GA3 caused cultivar-dependent flower abortion, which could be only partially mitigated by 6-BA. Among tested defoliants, urea and LS promoted budbreak, but their effectiveness appeared to depend on chill accumulation. Budbreak and fruit earliness were advanced when urea and LS were applied at the beginning of chill accumulation. By contrast, delaying the application to the end of chill accumulation increased budbreak to a greater extent, although it lessened the efficacy in advancing budbreak. Phytohormone profiling revealed the up-regulation of indole-3-acetic acid during LS-induced budbreak.The second part of this study examined the budbreak induction effects of foliar spray of PGRs [hydrogen cyanamide (HC), GA3, kinetin, abscisic acid (ABA), and 1-aminocyclopropane-1-carboxylate] and defoliants [ZS, KTS, and urea] in Southern highbush blueberry. Among the treatments, HC was the most effective budbreak induction chemical, and ZS induced intermediate budbreak between the control and HC. Other PGRs and defoliants showed no effect on budbreak. Although both HC and ZS increased jasmonic acid and methyl jasmonic acid production, only HC decreased ABA production, suggesting that down-regulation of ABA plays a key role in budbreak induction.Our results suggest that, in blackberry, urea is most recommended for the commercial implementation, because of its high effectiveness, consistent efficacy, low application cost, and favorable safety profile. Urea could be an important adaptation tool for subtropical blackberry production. In blueberry, HC appears to be by far the most effective budbreak induction chemical.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Horticulture. $3 555447
653 $a Defoliation
653 $a Dormancy
653 $a Phytohormone
653 $a Rubus
653 $a Vaccinium
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0471
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a University of Florida. $b Horticultural Sciences. $3 3703219
773 0 $t Dissertations Abstracts International $g 83-12B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28416203 $z click for full text (PQDT)