HU220028B - Phdp o variety of inbred corn line (zea mays l.) - Google Patents

Abstract

The subject of the invention is an inbred corn line called PHDP 0, which was developed from the breeding material of the Pioneer company, the leaf above the tube is slightly crooked, flowering begins in the middle of the season, the anthocyanin coloration of the anthers on the crest is weak, and that of the calyx is absent or very weak, the there is an anthocyanin ring at the base of the earlobe, the anthocyanin coloration of the leaf sheath is absent or very weak, the position of the lateral branches is slightly crooked, there is a small to medium number of first-order branches on the crest, the main axis above the lowest lateral branch and the main axis above the uppermost lateral branch are both medium to long, the main tube originates from medium to high in relation to the plant height , both the peduncle and the tube are medium long, the diameter of the tube is medium, the tube is cylindrical, it has a medium number of eye rows, and the back of the eye is orange. It is characterized by the appearance of abibe in a medium period, the anthocyanin coloring of the pistil is weak, the plant together with the crest is of medium height, the eye in the middle third of the tube is of an intermediate type, the eye crown is yellowish-orange, and the tip is colored with anthocyanin. ŕ

Description

The present invention relates to an inbred maize line of the variety PHDP 0 which is used as a parent partner for the production of hybrid maize.

The inbred maize line PHDP 0 is derived from Pioneer breeding stock.

The purpose of the breeding was to develop a line of inbred maize that would produce a hybrid corn with high grain yield and ecological adaptability.

Figure 1 illustrates the variety of the invention.

The morphological and phenological description of the PHDP 0 inbred line in UPOV TG 2/4 (1980) is as follows:

leaf: leaf position above tube - slightly curve-curve coat of arms: onset of flowering on 50% of plants - medium coat of arms: anthocyanin coloration of anthers - weak tube: time of appearance of stigma on 50% of plants - medium tube: a anthocyanin coloration of bibe - weak coat of arms: anthocyanin coloration of cornea - missing or very weak coat of arms: closed anthocyanin ring based on cornea - presence of leaf: anthocyanin coloration of leaf pod - lack of or very faint coat of arms: slightly curved crest number - low to medium coat of arms: length of crankshaft above lower crest - length of cranberry: length of crankshaft above upper crotch - medium to long plant: height including crest - medium tube: height of fitting

in proportion to plant height - medium to high tube: length of the stem - medium tube: length - medium tube: diameter - medium tube: shape - cylindrical tube: number of rows of eyes - medium tube: the type of eye is a tube middle third - intermediate type tube: color of the crown - yellow-orange tube: color of the back of the eye - orange tube: the cube is anthocyanin coloration - present

Claims (1)

Patent Claim Point The inbred maize line PHDP 0, developed from Pioneer breeding stock, has a slightly crooked leaf above the tube, flowering begins in mid-time, the anthocyanin coloration of the anthers is poor, or the cornea is very weak, there is an anthocyanic ring at the base of the cornea, the anthocyanin coloration of the leaf sheath is absent or very weak, the lateral branches are slightly curved, the crest has a few to medium number of primary branches, the cranial axis above the lower lateral and the cranial axis above from mid to high, the stem and tube are medium in length, the tube is medium in diameter, the tube is cylindrical with a medium number of eyes and the back of the eye is orange, characterized by a medium-time appearance of the pupil. anthocyanin its color is poor, the plant, including the coat of arms, is of medium height, the eyes are of the intermediate type in the middle third of the tube, the crown of the eye is yellow-orange and the cob is colored with anthocyanin.