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Morphactins as possible fruit thinning agents for peaches


, : Morphactins as possible fruit thinning agents for peaches. Acta Horticulturae (34): 353-357

Aqueous solutions of 30-40 p.p.m. applied 10 days after full bloom had a thinning effect similar to the routine hand thinning commonly carried out 40 days after full bloom.

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Related references

Aitken J.B., 1970: The evaluation of various chemical compounds as fruit thinning agents for north florida peaches d. Hortscienceec 2: 360

Sato, M., 1967: Chemical thinning of peaches, I. Effect of N-1-naphthylphthalamic acid (Peach-thin 322) on fruit set of Hakuho peaches.). In the first year of trials extending over 3 years N-l-naphthylphthalamic acid applied 2 days after full bloom at concentrations of 200 and 400 p.p.m. effectively thinned the fruit of some 12-year-old peach trees but not of others. In the second y...

Buban, T., 1972: Fruit thinning with morphactins in some peach varieties. (Preliminary communication.). Chlorflurenol methyl ester (EMD-IT 3456) was sprayed on 15 trees of the cvs Marigold and Ujfeherte I 2-3, 6-7, 9-10 or 13-14 days after leaf fall, and elsewhere EMD-IT 3456 and flurenol n-butyl ester (EMD-IT 3233) were each sprayed on 40 trees of...

Bilgener, S.; Beyhan, N.; Demirsoy, H., 1998: Effect of hand and chemical thinning on fruit thinning and quality of some peaches grown in Samsun. In trials carried out in 1991-93, flower thinning was carried out on peach cultivars Cardinal, Redhaven and Glohaven using NAA (0-60 ppm), carbaryl (0-1200 ppm) or thiourea (0-12%). Alternatively, small fruits of the same cultivars were thinned by...

Antognozzi, E.; Preziosi, P.; Standardi, A., 1976: Studies on the effect of CEPA and certain morphactins on fruit thinning in 3 peach cultivars. The treatments were: manual thinning when the seed was 10 mm long; spraying with the morphactin EMD 7311 or EMD 7301 (Celamerck) at 80 p.p.m. at 14 days after full bloom; and spraying with CEPA [ethephon] at 65 or 85 p.p.m. when the seed was 10 mm...

Antognozzi, E.P.eziosi, P.S.andardi, A., 1976: Research on the effects of (2 chloroethyl) phosphonic acid and some morphactins in fruit thinning of three peach cultivars. Frutticoltura 38 (6) 17-21

Yamazaki, T.; Murase, S.; Suzuki, K.; Kato, S.; Iwatuki, M., 1988: Development of flower thinning agents for deciduous fruit trees. III. Screening of amino acids and food and cosmetics additives as thinning agents. Sucrose lauric acid ester (a nonionic surfactant used as a food additive), Amisoft (N-mixed fatty acylated L-glutamic acid monosodium salt, an anionic surfactant used in cosmetics), PCA (pyrrolidone carboxylic acid, a cosmetics additive) and sodiu...

Yamazaki, T.; Murase, S.; Suzuki, K.; Kato, S.; Iwatuki, M., 1988: Development of flower thinning agents for deciduous fruit trees iii. screening of thinning agents from amino acids as well as food and cosmetics additives. The thinning effect of 12 chemical substances which were utilized as food amino acids as well as food and cosmetics additives was surveyed. The following results were obtained: 1. The inhibitory effect of fertilization of the chemical substances s...

Sugimoto, Y.; Fukunaga, S., 1972: Studies on the application of fruit thinning agents to persimmons I. The effect of NAA on fruit thinning. NAA was best applied at a concentration of 5-10 p.p.m. Some 7 or 10 days after full bloom in the cv. Hiratanenashi. The thinning effect was greatest when many flowers were still open before treatment and when tree vigour was low. Individual fruit...

Sato M., 1972: Chemical thinning of peaches part 5 on the fruit drop during the period between the end of drop by peach thin and final hand thinning. Journal of the Japanese Society for Horticultural Science 41(1): 37-41