Pinus pinea produces the most expensive pine nuts worldwide, with a masting habit (variable cone productivity over time) in its native habitat. This study assessed the presence of masting habit in a non-native area, the correlation of annual cone production with climatic variables, and the impact of resource depletion on cone productivity 3 and 4 years after a bumper crop. During 10 years, all cones tree⁻¹ were harvested and counted in three plantations. Cone yield stability was measured via coefficient of variation of cones tree⁻¹. Climatic factors were correlated with stone pine masting. Results indicated that inter-annual variability of cone yield and annual rainfall during 3 years prior to seed maturity, and thermal oscillation 2 years before harvest, were significantly correlated. A correlation was found between cone productivity when reproductive shoot differentiation or when male and female primordia induction occurred, and cone productivity 3 and 4 years later. Individual tree fruit load did not reduce flower induction. The most productive trees will also be the most productive ones in the following years, a finding with practical implications for breeding programs and plant production.

松pinea产生最昂贵的松子遍及世界各地，在其原生地一个masting习惯（随着时间的推移变锥生产力）。这项研究评估了非原生地区存在的节食习惯，一年生球果产量与气候变量之间的相关性以及丰收后3年和4年资源枯竭对圆锥果生产力的影响。在10年中，在三个种植园中收获了所有的锥果树^-1并进行了计数。通过锥体树^-1的变异系数测量锥体的产量稳定性。气候因素与松石肥大相关。结果表明，在种子成熟前3年内，以及收获前2年内的热振荡之间，年产量和年降雨量的年际变化呈显着相关。发现生殖芽分化或发生雌雄原基诱导时视锥果生产力与3年和4年后视锥果生产力之间存在相关性。单个树上的果实负荷没有减少花的诱导。在接下来的几年中，生产力最高的树木也将成为生产力最高的树木，这一发现对育种计划和植物生产具有实际意义。