ECO-PHYSIOLOGICAL STUDIES ON SEED GERMINATION OF DESERT PLANTS OF RAJASTHAN : 2. ERYTHRINA VARIEGATA MERR

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Various experiments were conducted with the seeds of Erythrina variegata to study the imbibition and germination behaviour. The characteristics of seeds with reference to weight, volume and dimensions per seed have been studied. It has been observed that imbibition and germination in ordinary laboratory conditions of light and temperature were 100 and 80 percent respectively in a control set. Tne temperature treatment at 35℃ proved beneficial to 95 percent germination. Higher temperature treatment to seeds proved to be harmful. Acid pre-treatment to seeds and exposed to light quality viz., red, yellow, green and blue, have enhanced the imbibition and germination to 100 percent within 6 days. Forty minutes acid pretreatment to seeds in blue light has helped to complete 100 percent germination in 3 days. Pre-treatment of seeds to chemicals such as (i) Ammonium chloride (ii) Potassium nitrate (iii) Ammonium nitrate and (iv) Absolute alcohol was given in hours. Ninty to 100 percent germination was observed in (i) ammonium chloride -10 hours, (ii) potassium nitrate -1 hour, (iii) ammonium nitrate -2 hours and (iv) 2,4 and 24 hours in absolute alcohol. Culture experiment in different soil types was also performed and 90 to 100 percent germination was obtained in gravel and sandy soils respectively. The root/shoot ratio in length and oven dry weight was also studied.

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  • 日本生態学会誌

    日本生態学会誌 20 (5), 182-187, 1970

    一般社団法人 日本生態学会

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