International union for the protection of new varieties of plants
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8.Explanations on the Table of Characteristics8.1 Explanations covering several characteristics Characteristics containing the following key in the second column of the Table of Characteristics should be examined as indicated below:
8.2 Explanations for individual characteristics Ad. 1: Grain: bitter principle The bitter principle should be assessed on the seed submitted by the applicant. The Grain-Cut-Method according to v. Sengbusch (1942), Ivanov and Smirnova (1932) and Eggebrecht (1949) is applicable as the testing method to Lupinus albus, Lupinus angustifolius and Lupinus luteus. The dry or swollen grains are cut transversely. The grain halves are placed on a sieve, dipped in an iodine solution for 10 seconds and then rinsed with water for 5 seconds. The cut surfaces of bitter grains discolor to brown but those of non-bitter grains remain yellow. For the preparation of the iodine solution 14g potassium iodate are dissolved in as little water as possible, then 10g iodine is added and should be made up to 100cm3 with water. The solution must be left for one week before it can be used. Storage should be in brown bottles. This main solution is diluted between 1 to 3 and 1 to 5 before being used. Ad. 2: Plant: height at vegetative stage To be observed on the whole trial just before bud emergence of the earliest variety. Ad. 5: Time of flowering A plant is considered to begin to flower when 3 flowers of the inflorescence on the main shoot have opened. If observations are made on individual plants, the mean date for the plot should be calculated. If observations are made on a group of plants, the date of flowering is when the flower buds on the main shoot of about 50% of the plants in the plot have begun to open. Ads. 7, 8: Central leaflet: length and width All observations on the leaf should be made at the time of full flowering. Indeterminate type: on the central leaflet of the leaf just below the uppermost branch bearing flower. Determinate type: on the central leaflet of the uppermost leaf of the main stem. Ads. 9, 10: Flower: color of wings (9) and color of tip of carina (10) All observations on the flower should be made at the time of full flowering. Observations should be made on the middle of the inflorescence on flowers at the stage of pollen release.   wing  
tip of carina 
carina  
Ad. 11: Plant: growth type Determinate: Spring Type: Lateral branches develop at the base of the main stem. Height of lateral branches is lower than height of main stem. Development of flowers and pods from axillary buds along the whole branches. Winter Type: Lateral branches develop from axillary buds of the highest main stem leaves with further branching of primary branches. The lateral primary branches grow higher than the main stem, etc. After production of 2 or 3 levels of branches, all vegetative buds turn into flowers and the vegetative development is definitely stopped. Indeterminate: Lateral branches develop along the main stem with further branching. The secondary lateral branches grow higher than the primary lateral branches, etc. Flowers develop in compact inflorescences at top of branches. The expression is the same in spring type and winter type. Ads. 12, 13 and 14: Time of green ripening (12), Plant: height of insertion of first inflorescence at green ripening (13) and height at green ripening (14) At green ripening, the grains in the pods of the main shoot have reached full size and can be dented with the thumbnail. Ad. 15: Pod: length All observations should be made on pods at green maturity, in the middle third of the main inflorescence. Ad. 16: Time of ripening The time of ripening is when the grains in the pods of the main shoot can no longer be dented with the thumb nail. Ads. 17 and 18: Grain: ornamentation (17) and color of ornamentation (18) Ornamentation means well-defined dots different from the ground color. They should be assessed at full maturity of the grain. A  d. 19: Grain: distribution of ornamentation
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3 |
4 |
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d  orsal |
ventral |
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5 |
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eyebrow only |
A
d. 20: Excluding varieties with eyebrow only: Grain: density of ornamentation
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3 |
5 |
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sparse |
medium |
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7 |
9 |
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dense |
very dense |