Studies on crop maturity in cauliflower: II. Effects of cultural factors on the maturity characteristics of a cauliflower crop

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Abstract
The effects of six cultural treatments on (a), the time of 50% crop maturity and (b), the duration of the maturity period, were studied on representative varieties of three groups of autumn cauliflower in experiments carried out over a period of five years. The treatments included a comparison of the use of graded and ungraded seed, transplanting and direct-drilling of the crop, different transplant ages, selection for uniformity at planting or thinning time, and plant density and nitrogen levels during the early seedling stage of growth. Transplanted crops of all varieties were later in maturing than direct-drilled crops and, in two of the three varieties, the duration of the maturity period was much longer with transplanted crops. Both plant competition in the seedbed and increasing age of transplant delayed maturity and lengthened the maturity period of transplanted crops. The use of graded seed for a direct-drilled crop made a small but significant improvement to the uniformity of maturity within the crop and thus shortened the length of the maturity period.

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