Table 4.
Survival of leaves and cuttings and average fresh mass and adventitious root formation of pelargonium cuttings as affected by pre-harvest nitrogen supply and storage of cuttings
Losses of plant tissue (until day 13) |
Final rooting response (day 21) |
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---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Number of leaves1 |
Number of whole cuttings1 |
Survival rate (%) |
Number of roots |
Fresh mass of roots (g) |
Total fresh mass (g) |
|||||||||||||||||
Nitrogen treatment |
Unstored |
Stored |
Unstored |
Stored |
Unstored |
Stored |
Unstored |
Stored |
Unstored |
Stored |
Unstored |
Stored |
||||||||||
N-low | 0·0a | 0·6a | 0·0a | 0·1ab | 80·0c | 60·0b | 7·4a | 8·4a | 0·29a | 0·38ab | 5·02a | 4·66a | ||||||||||
N-medium | 0·0a | 1·3a | 0·0a | 0·1a | 77·8c | 53·3ab | 12·7c | 6·6a | 0·55b | 0·42ab | 6·80b | 4·93a | ||||||||||
N-high | 0·3a | 2·8b | 0·0a | 0·4b | 77·8c | 43·3a | 10·8b | 7·7a | 0·52b | 0·51b | 7·12b | 4·92a |
Different superscripts indicate significant differences (P < 0·05) at specified days of propagation.
Per eight cuttings. Otherwise average of three harvest dates and three replication plots (n = 9).