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Growth regulators on the increase of the fruit set and parthenocarpy on Garber pear
- Source :
- Revista Brasileira de Fruticultura, Vol 24, Iss 3, Pp 629-630 (2002), Revista Brasileira de Fruticultura v.24 n.3 2002, Revista brasileira de fruticultura, Sociedade Brasileira de Fruticultura (SBF), instacron:SBFRU, Revista Brasileira de Fruticultura, Volume: 24, Issue: 3, Pages: 629-630, Published: DEC 2002
- Publication Year :
- 2002
- Publisher :
- Sociedade Brasileira de Fruticultura, 2002.
-
Abstract
- O trabalho foi realizado em pereiras da cultivar Garber (Pyrus communis x Pyrus pyrifolia), com o objetivo de verificar o efeito de ácido giberélico (AG3), ácido naftalenoacético (ANA), aminoetoxivinilglisina (AVG) e tidiazurom (TDZ) no aumento da frutificação e na indução e desenvolvimento de frutas partenocárpicas. Durante a plena floração, aplicaram-se sobre os cachos florais 13 diferentes tratamentos: (50; 300 e 500 mg.L-1), ANA (50; 100 e 200 mg.L-1), TDZ (5; 15 e 25 mg.L-1) e AVG (50; 100 e 200 mg.L-1), sendo que, na testemunha, foi aplicada somente água. A polinização entomófila foi controlada em 50% dos ramos. As variáveis avaliadas foram o número total e médio de frutas fixadas, peso fresco, número de sementes, deformação e coloração das frutas. Dentre os tratamentos, o TDZ, na concentração de 15 mg.L-1, proporcionou o maior o número total de frutas, número médio de frutas fixadas, promovendo aumento no peso e coloração das mesmas. As deformações foram superiores nas peras tratadas com TDZ e naquelas com menor quantidade de sementes por fruta. This study was conduced with trees of pears Garber (Pyrus communis x Pyrus pyrifolia). The aim of this work was to examine the effects of growth regulators substances as gibberellic acid (GA3), naphthaleneacetic acid, aminoetoxivinilglisine (AVG) and tidiazuron (TDZ) to increase the fruit set and to induce the parthenocarpy. During the period of full blossom, the bunches was pulverized with 13 different treatments: GA3 (50, 300, 500 mg.L-1), ANA (50, 100, 200 mg.L-1), TDZ (5, 15, 25 mg.L-1), AVG (50, 100, 200 mg.L-1) and a control treatment with water. The insect pollination, was controled in 50% of branches. It was determined the total number of fruits established, the average of fruits established per bunch, the weight of fruits and number of seeds per fruit. Between all treatments, the plants pulverized with TDZ, at a concentration of 15 mg.L-1, showed the highest number of fruits established and the highest average of fruits established per bunch. It was observed an increasing in the weight per fruit and the most intense color on plants with TDZ treatment. Pears that received TDZ treatments and those that presented less seeds per fruit showed greater deformity.
- Subjects :
- Control treatment
hormônios
Plant culture
Plant Science
Biology
Pyrus communis x Pyrus pyrifolia
lcsh:Plant culture
Parthenocarpy
SB1-1110
Fruit set
Pyrus
Horticulture
chemistry.chemical_compound
chemistry
plant growth regulators
Pyrus sp
lcsh:SB1-1110
Agronomy and Crop Science
Gibberellic acid
Food Science
Subjects
Details
- Language :
- English
- ISSN :
- 18069967
- Volume :
- 24
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Revista Brasileira de Fruticultura
- Accession number :
- edsair.doi.dedup.....9a765e6aeb72bd3814a2a375326b8dc6