Parent layout of field in sorghum sudanense hybrid seed production

Abstract

The invention discloses a parent layout of field in sorghum sudanense hybrid seed production, characterized by alternatively planting multi-row male parents and multi-row female parents in the field, simultaneously planting a male parent plant in the female parents at a regular interval of 2 cm, and planting male parents in the northern and southern ends of the field in sorghum sudanense hybrid seed production. According to the invention, ventilation and light transmission of the female parents can be improved, the propagation of pollen in the field is benefited, the maturing rate of the female parents can be raised, the grains are plump, and the yield of sorghum sudanense hybrid seed production is raised.

Description

technical field [0001] The invention relates to a parental layout method for the hybrid cultivation of Sorbus dansana, which relates to the planting technology of crops, specifically, a method for rational field layout of parents with large differences in plant height during the process of Sorbus dansana hybrid seed production. Background technique [0002] Sorghum grass is a forage grass hybrid prepared by distant hybridization of sorghum and sudan grass. It is mainly used to raise cattle, sheep, rabbits, and fish. Because of its high yield, good quality and good palatability, it is adopted by many farmers. The female parent of sorghum is the short-stemmed sorghum, and the male parent is the tall-stalked sudangrass. The height difference between the parents of Sorbus dansana caused some difficulties for field hybrid seed production of Sorbus dansana. Taking the parents of Wancao 3 as an example, the average plant height of the male parent Sa is 2.84m, while that of the fe...

AI Technical Summary

Problems solved by technology

If the hybrid seed production of Wancao No. 3 is carried out according to such a row ratio pattern, the tall plants of the male parent will have a strong shading effect on the female parent planted in parallel, resulting in insufficient light for the female parent and affecting the photosynthesis of the female parent. Make the mother grow thin

Especially after earing, the male parent often falls, and the plants directly cover the female parent's plants, which not only affects the ventilation and light transmission of the female parent group, but also has a greater impact on pollen transmission, which will cause the female parent's seed setting rate to decrease. Not full, the yield is greatly reduced