THE EFFECT OF ETHREL ON THE DURATION OF FLOWERING OF MALE FLOWERS SQUASH PLANTS WITH DIFFERENT GENETIC EXPRESSIVENESS OF FLOWER GENDER IN THE KRASNODAR REGION CONDITION
Depending on the genotype of monoecious plants Cucurbitaceae family may have different gender expressions: predominantly female, mixed and predominantlymale type of flowering. However, the degree of sexual differentiation can be changedunder the influence of abiotic and endogenous factors. Among the...
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Federal State Budgetary Scientific Institution "Federal Scientific Vegetable Center"
2016-11-01
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| Series: | Овощи России |
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| Online Access: | https://www.vegetables.su/jour/article/view/282 |
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| author | R. A. Gish K. O. Chaykin |
| author_facet | R. A. Gish K. O. Chaykin |
| author_sort | R. A. Gish |
| collection | DOAJ |
| description | Depending on the genotype of monoecious plants Cucurbitaceae family may have different gender expressions: predominantly female, mixed and predominantlymale type of flowering. However, the degree of sexual differentiation can be changedunder the influence of abiotic and endogenous factors. Among the chemicals that affect the level of female flowering in pumpkin crops, preparations based on 2-chloroethylphosphonic acid (Ethephon or Etrelle) are the most promising for hybrid seed production. Study of plant response of squash Cucurbita pepo var. giromontina with varying sex expressions on the treatments with Etrelle revealed common conformities and specificities of preparation action in the condition of Krasnodar region. It is shown the use of treatment once is not effective even if the high concentration range, 500-1100 mg/L, was taken. On gender switch was effectively influenced successive plant treatments with Etrelle at stages of 3-5 true leaves in a wide concentration range from 250 to 700 mg /L., where the restraining was that the start of male flower blossoming was 14-25 days after female flower blossoming. K69 line with predominantly female flowering was more responsive to the variation of concentration and frequency of treatments whereas the line K49 with male flowering was less responsive to the frequency of treatments. It is shown that in the range of effective concentrations, Etrelle may have phytotoxic effects on the growth and development of squash plants at the time of restraining flowering of male flowers. It is important to ake that into account when choosing a regime of preparation treatments for chemical castration of maternal forms in hybrid seed production of this crop. |
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| id | doaj-art-c6cef9be295145eba49aac71d66acb39 |
| institution | Kabale University |
| issn | 2072-9146 2618-7132 |
| language | English |
| publishDate | 2016-11-01 |
| publisher | Federal State Budgetary Scientific Institution "Federal Scientific Vegetable Center" |
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| series | Овощи России |
| spelling | doaj-art-c6cef9be295145eba49aac71d66acb392025-08-20T03:43:15ZengFederal State Budgetary Scientific Institution "Federal Scientific Vegetable Center"Овощи России2072-91462618-71322016-11-0103323810.18619/2072-9146-2016-3-32-38266THE EFFECT OF ETHREL ON THE DURATION OF FLOWERING OF MALE FLOWERS SQUASH PLANTS WITH DIFFERENT GENETIC EXPRESSIVENESS OF FLOWER GENDER IN THE KRASNODAR REGION CONDITIONR. A. Gish0K. O. Chaykin1Kuban State Agrarian UniversityLTD «Research Institute of Vegetable Growing Greenhouse»Depending on the genotype of monoecious plants Cucurbitaceae family may have different gender expressions: predominantly female, mixed and predominantlymale type of flowering. However, the degree of sexual differentiation can be changedunder the influence of abiotic and endogenous factors. Among the chemicals that affect the level of female flowering in pumpkin crops, preparations based on 2-chloroethylphosphonic acid (Ethephon or Etrelle) are the most promising for hybrid seed production. Study of plant response of squash Cucurbita pepo var. giromontina with varying sex expressions on the treatments with Etrelle revealed common conformities and specificities of preparation action in the condition of Krasnodar region. It is shown the use of treatment once is not effective even if the high concentration range, 500-1100 mg/L, was taken. On gender switch was effectively influenced successive plant treatments with Etrelle at stages of 3-5 true leaves in a wide concentration range from 250 to 700 mg /L., where the restraining was that the start of male flower blossoming was 14-25 days after female flower blossoming. K69 line with predominantly female flowering was more responsive to the variation of concentration and frequency of treatments whereas the line K49 with male flowering was less responsive to the frequency of treatments. It is shown that in the range of effective concentrations, Etrelle may have phytotoxic effects on the growth and development of squash plants at the time of restraining flowering of male flowers. It is important to ake that into account when choosing a regime of preparation treatments for chemical castration of maternal forms in hybrid seed production of this crop.https://www.vegetables.su/jour/article/view/282hybrid seedsquashprocessingseedsetrelle (2 hefk) |
| spellingShingle | R. A. Gish K. O. Chaykin THE EFFECT OF ETHREL ON THE DURATION OF FLOWERING OF MALE FLOWERS SQUASH PLANTS WITH DIFFERENT GENETIC EXPRESSIVENESS OF FLOWER GENDER IN THE KRASNODAR REGION CONDITION Овощи России hybrid seed squash processing seeds etrelle (2 hefk) |
| title | THE EFFECT OF ETHREL ON THE DURATION OF FLOWERING OF MALE FLOWERS SQUASH PLANTS WITH DIFFERENT GENETIC EXPRESSIVENESS OF FLOWER GENDER IN THE KRASNODAR REGION CONDITION |
| title_full | THE EFFECT OF ETHREL ON THE DURATION OF FLOWERING OF MALE FLOWERS SQUASH PLANTS WITH DIFFERENT GENETIC EXPRESSIVENESS OF FLOWER GENDER IN THE KRASNODAR REGION CONDITION |
| title_fullStr | THE EFFECT OF ETHREL ON THE DURATION OF FLOWERING OF MALE FLOWERS SQUASH PLANTS WITH DIFFERENT GENETIC EXPRESSIVENESS OF FLOWER GENDER IN THE KRASNODAR REGION CONDITION |
| title_full_unstemmed | THE EFFECT OF ETHREL ON THE DURATION OF FLOWERING OF MALE FLOWERS SQUASH PLANTS WITH DIFFERENT GENETIC EXPRESSIVENESS OF FLOWER GENDER IN THE KRASNODAR REGION CONDITION |
| title_short | THE EFFECT OF ETHREL ON THE DURATION OF FLOWERING OF MALE FLOWERS SQUASH PLANTS WITH DIFFERENT GENETIC EXPRESSIVENESS OF FLOWER GENDER IN THE KRASNODAR REGION CONDITION |
| title_sort | effect of ethrel on the duration of flowering of male flowers squash plants with different genetic expressiveness of flower gender in the krasnodar region condition |
| topic | hybrid seed squash processing seeds etrelle (2 hefk) |
| url | https://www.vegetables.su/jour/article/view/282 |
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