HU219625B - Phrd6 variety of inbred corn line (zea mays l.) - Google Patents

Abstract

The subject of the invention is an inbred corn line called PHRD 6, which was developed from Pioneer breeding material, the leaf above the tube is slightly curved, the crown flowering begins very early, the anthers are not or very weakly colored with anthocyanin, and the ear husks and leaf sheaths are not or very weakly colored with anthocyanin. colored, no anthocyanin ring is formed at the base of the bracts of the crest, the side branches on the crest are intermediate, the main axis above the lowest lateral branch on the crest is long, while the main axis above the uppermost side branch is medium long, the tube peduncle is long, the tube is medium length and conical-cylindrical, the back of the eye is orange, and the cob is not colored with anthocyanin. Its characteristic is that the appearance of the pistil is early to medium, the anthocyanin coloration of the pistil is weak, few primary branches are formed on the crest, the plant together with the crest is of medium height, the main tube is formed on the stem from medium to high, the diameter of the tube is medium , a medium number of rows of eyes develop on the tube, the eye is intermediate in position, and the eye crown is yellowish-orange. ŕ

Description

The present invention relates to inbred maize line PHRD 6 which is used as a parent partner in the production of maize hybrids.

The maize line PHRD 6 was bred from Pioneer stock.

The purpose of the breeding was to create an inbred line that would give a high degree of heterosis in the hybrid as the parent partner, and to produce hybrids with high grain yield and adaptability.

The morphological and phenological description of the inbred maize line PHRD 6 in UPOV TG / 2/4 (1980) is as follows:

leaf: leaf position above tube - slightly wavy coat of arms: onset of flowering on 50% of plants - very early coat of arms: anthocyanin coloration of anthers - missing or very weak tube: time of appearance of stigma on 50% of plants - early- medium tube: anthocyanin coloration of the sternum - faint coat of arms: anthocyanin coloration of the cornea - missing or very faint coat of arms: closed anthocyanin ring based on the cornea of the calyx leaf: leaf anthocyanin coloration of the coat of arms: number of lateral branches of the primary branch Length of Coat of Arms: Crankshaft Length Above Top Branch Plant: Height including Coat of Arms

- Missing

- Missing or very weak

- intermediate position

- few

- long

- medium

- medium tube: fit height to plant height

proportion - medium to high tube: length of the peduncle - long tube: length - medium tube: diameter - medium tube: shape - conical-cylindrical tube: number of rows of eyes - medium tube: the type of eye is a tube middle third - intermediate position tube: color of the crown - yellow-orange tube: the back of the eye color - orange tube: the cube is anthocyanin coloration - Missing

Figure 1 illustrates the variety of the invention.

Claims (1)

Patent Claim Point Inbred maize line PHRD 6, derived from Pioneer-bred stock, slightly curved over leaf, very early on tassel blossom, no or very poor anthocyanin on the anthers, and very little on the sheath faintly colored, no anthocyanin ring formed on the crest of the tassel, the medial longitudinal axis of the crest, the medial longitudinal axis of the crest, the medial longitudinal length of the maxilla and the median length of the tube , the back of the eye is orange and the cob is not anthocyaninic, characterized by early to medium appearance of the stigma, poor anthocyanin staining of the stigma, few primary branches on the crest, and medium height of crest , the main tube is formed from mid to high on the stem, the tube has a medium diameter, the tube has a medium number of eyes, the eye is intermediate and the crown is yellow-orange.