Author(s):

Pankaj Lavania, RP Singh, Ashish Tiwari and Hutesh Kumar Sharma

Abstract: An investigation was carried out to determine the exact maturity stage for seed collection of Acacia nilotica at three locations of Uttar Pradesh i.e. Agra (S₁), Mathura (S₂) and Hathrus (S₃). Among the different collection dates, 2^nd week of June (5^th collection) across the sites was found best as it resulted maximum germination (85.2+0.46 % at S₁, 86.7+0.94 % at S₂ and 86.2+0.45% at S₃). The results also revealed that moisture content decreased with advancement of maturity. At maturity, moisture content came down from 42.2+0.66 to 21.4 +0.31 % at Agra, 41.8 +0.22 to 22.4+0.26 % at Mathura and 43.5+0.34 to 23.9+0.23 % at Hathrus. At this stage, the colour of pod and seed was yellowish white and brownish black, respectively. Present study revealed that pods of Acacia nilotica may be harvested during 2^nd week of June to get maximum germination in Uttar Pradesh.

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