Slider.minValue

public float minValue ;

説明

スライダーで使用できる最小値。

using UnityEngine;
using System.Collections;
using UnityEngine.UI; // Required when Using UI elements.

public class Example : MonoBehaviour 
{
	public Slider mainSlider;

	void Start() 
	{
		// Changes the minimum value of the slider to 20;	
		mainSlider.minValue = 10;
	}
}