Effect of collection date on capsule moisture content and germination of Populus ciliata Wall. ex Royle from central Himalaya
2002
Pandit, A. | Pant, K. | Ram, J.
Seed maturity indices of Populus ciliata were investigated in collections from Sukhatal and Bhowali. Across both seed sources, mean capsule size varied from 68.0 +/- 1.5 mm(2) to 72.0 +/- 0.9 mm(2), while mean number of capsules/100 grams varied from 268 +/- 8 to 295 +/- 12. Mean weight of 100 capsules varied from 25.0 +/- 1.4 g to 27.0 +/- 1.4 g. Weight of 100 capsules among sources and individual trees differed significantly (P < 0.05), while number of capsules/100 grams and weight of 100 capsules was negatively correlated (r(2) = 0.69). As capsules matured moisture content decreased from 83.2 +/- 1.1% to 54.3 +/- 0.3% at Sukhatal and from 77.7 +/- 0.4% to 46.4 +/- 0.3% at Bhowali. The optimum germination was at 58-60% moisture content. Maturation was related to capsule colour changes as well as moisture content. These parameters were judged to be good indicators of when to collect P. ciliata seeds.
Mostrar más [+] Menos [-]Palabras clave de AGROVOC
Información bibliográfica
Este registro bibliográfico ha sido proporcionado por National Agricultural Library