Morphologic and Anatomic Indexes of Pinus kwangtungensis Cone and Seed
Shenyu Miao · Anhui nongye kexue · 2010
[Objective]In order to provide some information for revealing the native endangered mechanism of the national key protected plants of Pinus kwangtungensis, the morphologic and anatomic indexes of cone and seed were studied. [Method]Sampling at random, all kinds of the characteristics of cone and seed were measured. [Result]The mean full rates of cones was 26.7%. The range of the cone fullness rates was 2.1% to 93.8%. The dry weights of single cone was 10.76 g. The mean cone length was 6.68 cm. The mean cone wide was 2.94 cm. The rate of length to wide of cones was 2.26. The mean cone volume was 15.99 cm3. The 1 000-seed weight was 79.334 g. [Conclusion] Most of the breeding seeds were centered in the central of the cones. Cone’s rottenness might due to the leak of fat. There were four groups of the seeds, such as normal breeding, maturity in external appearance but rotten inside, inadequacy development, and non-development. The seed yield and 1 000-seed weight had positive correlation with cone size.