|
Suckers from M. spicata cultivars MSS 5,
Arka, and Neera were grown in Hoagland's solution supplemented with
0.00, 0.056, 2.80, and 5.60 mg Fe/litre. Plants grown at 0.00 and 0.056
mg Fe/litre did not survive after 10 days of treatment. Fe deficiency
symptoms, such as chlorosis and necrosis particularly in young leaves,
were more pronounced in Arka and Neera than in MSS 5. The latter
cultivar also recorded the greatest plant height, number of branches,
dry weight, fresh weight, chlorophyll content, oil content, and carvone
content under Fe deficiency. These parameters decreased with the
reduction in Fe supply. The positive correlation between fresh weight
and dry matter, dry matter yield and oil content, and oil percentage and
carvone content was observed in all cultivars. Fresh herb yield and dry
matter was positively correlated with oil percentage and carvone
content in MSS 5 only.
. |
