See both the courses are good. But if you want to choose a course which is more job related then I would recommend you to go for BTech Diary Technology. The course is more job likely and you can expect a job after passing the course. But in case of BSc Horticulture to get a settled job you need to go for some specialization or you need to acquire some experience else its very hard for you to get a job just after BSc course. Thus I would recommend if you want to pursue a course which is job related then go for BTech Diary Technology.

To know more about Diary Technology visit the link below:

https://www.careers360.com/courses/b-tech-in-dairy-technology

To know more about Horticulture visit the link below:

https://www.careers360.com/courses/bsc-in-horticulture

I hope this answer helps. All the very best for your future endeavors!