Correct Option
The production of seedless tomato fruits is achieved through the application of plant hormones, a process known as parthenocarpy. When hormones such as auxins or gibberellins are sprayed on flowers, they stimulate fruit development without the need for fertilization. This artificial induction of fruit growth bypasses the normal seed formation process, resulting in fruits that lack seeds. This technique is widely employed in commercial horticulture to enhance fruit quality and market appeal.
Incorrect Options
Applying trace elements (Option 1) provides essential micronutrients for overall plant growth and health but does not induce parthenocarpy or seedless fruit formation.
Spraying mineral solution on plants (Option 2) supplies general nutrients required for plant metabolism. However, it does not trigger fruit development in the absence of pollination and fertilization.
Applying fertilizers containing radioactive elements (Option 4) is not a method for producing seedless fruits. Such substances are generally harmful and are not used for inducing fruit development or altering seed formation.