Plant hormone for fruit seting

If you are growing tomatoes in your vegetable garden in summer, plants start flowering heavily. If the temperature of the environment exceeds 300C, tomato plants do not set fruits in the flowers. Under such hot condition you must apply plant hormones for fruit setting in the tomato plants.

It is the most important information for the gardeners who are growing tomatoes in their vegetable garden that the application of some plant growth hormone has shown positive effects on fruit setting of the tomato plants in greenhouse as well as in open field conditions. Plant growth hormone such as 4-chlorphenoxyacetic acid (CPA) or B-naphthoxyacetic acid (NAA) have responded very well to increase fruit set significantly on the crop of the tomato.

Everybody wants to be successful in their occupation. For growing tomatoes successfully, you must take use of plant hormone. There are some such plant hormones available in the market of your locality. The sprayed plant hormones will induce fruits setting in the tomato flowers even temperature goes over 300C.

Some of the plant hormones which help fruit setting in the tomato plants in hot climate are 4-chlorphenoxyacetic acid (CPA) and B-naphthoxyacetic acid (NAA). In your locality, there are plant hormones whose trade name is different. You better ask in the agriculture input store for it or agricultural extension worker.

You can see the procedure of making solution of the plant hormone in the leaflet inside the packet. Generally water solution of the strength of 75 to 100 ppm of CPA is made and sprayed on the tomato foliage. Or you make the solution in the different instruction too. Mix 15 to 75 mg of CPA for one liter of clean water. You can make the solution of a little bit higher strength too if the temperature is higher. Never exceed very high concentration than the above range. This way, the work of growing tomatoes can be successful if you use the plant hormone in time once you observe no fruit setting in the flowered tomato plants in the vegetable garden.

You can also use NAA as the alternative for the induction of fruit setting if temperature reaches or goes over 300C. If the temperature is higher than 300C, you better make the solution of the strength of 50 to 100 ppm of NAA. Spray the solution onto the flowering foliage. Please remember that one gram of the plant hormone is meant for 1000 milligrams. See the percentage of active ingredient of the plant hormone vial or package whatever may be the hormone, NAA or CPA?

You should spray the plant hormone when about four flowers have opened in the inflorescence. How to spray the plant hormone onto the foliage of tomato plants is also very important for the gardeners who are growing tomatoes. Each flower have green region at the bottom of the flowers. It is called calyx. So gardener should spray the solution in such a way that the solution of the plant hormone should come in contact with the calyx. Spraying time of the plant hormone is about 3 pm or afterwards in the sunny days.

Night temperature also influences fruit set in tomato plants. Tomato plants cannot set fruits in the flowers when the temperature is lower than 130C even though there is proper balance of carbohydrate and nitrogen content. So, gardeners must be aware of excessive use of the fertilizers of inorganic nitrogen such as urea and ammonium sulfate. Please don’t apply excessive amount of nitrogen fertilizers in the vegetable garden.

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