Pistachio is one of the most important and strategic crops in Iran which is typically cultivated under relatively saline soils and hot weather conditions. The present paper represents the results of an experiment which mainly focused on evaluating the tolerance of pistachio female and male genotypes to salinity stress. This experiment was carried out at the greenhouse of the Pistachio Research Center at Kerman, Iran, during 2016. The hybrids obtained from crosses between 17 male genotypes with a female genotype “Fandoghi” and also the combinations of 19 female genotypes after crossing with a male genotype “M15” were cultured in a completely randomized design with three replications under salt stress (4.2 dS m-1) without drainage in the greenhouse condition for a period of four months. The results show an increasing of the average soil salinity in pots to 32 dS m-1.The results also indicate that salinity might negatively affect growth parameters of pistachio. Therefore, selecting genotypes in this condition might lead to release tolerant genotypes. During the research, some yielded hybrids indicated the higher values for morphological parameters, the lower and higher concentration of Na and K under salinity stress, respectively. Meanwhile, it was found that, ‘Khanjari Damghan’ and ‘Mohseni’ among female parents, and M10, M15, and M25 among male parents are possible tolerant genotypes for further assessment in the area and also for releasing new rootstocks. The analysis of two clusters, i.e., cluster 1 (‘Khanjari Damghan’, ‘Mohseni’, ‘Lak Sirizi’, ‘Ebrahimi’, ‘Sifadini’, ‘Badami Zarand’, ‘Sephid Peste Nogh’, and ‘Post Kaghazi’) and cluster 2 (M10, M15, M24, M25, and M26) for female and male genotypes, respectively, exhibits that higher morphological parameters and also higher tolerance to salinity. More importantly, the analysis showed that these two categorized sets of genotypes can be proper choices for future breeding programs or to use directly in salinity conditions.
展开▼
机译：开心是伊朗最重要和最重要的作物之一，通常在相对盐渍土壤和炎热的天气条件下培养。本文代表了实验的结果，主要集中在评估裂缝雌性和雄性基因型对盐度应激的耐受性。该实验是在2016年克尔曼克尔曼开心果研究中心的温室中进行的。从17名男性基因型之间的交叉口与女性基因型“Fandoghi”之间获得的杂种，以及在与男性交叉后的19个女性基因型的组合基因型“M15”在完全随机的设计中培养，在盐胁迫下的三种复制（4.2 ds m-1），温室条件下的盐胁迫（4.2 ds m-1），为期四个月的时间。结果表明，盆栽的平均土壤盐度升至32dsm-1。结果还表明盐度可能对开心果的生长参数产生负面影响。因此，在这种情况下选择基因型可能导致释放耐受基因型。在研究期间，一些产生的杂交物分别表明了形态参数的较高值，分别在盐度胁迫下的Na和k较高浓度。与此同时，发现女性父母和M10，M15和M25中的'khanjari大山脉'和'mohseni'是可能的耐受性基因型，用于在该地区进一步评估，也可以释放新的砧木。对两个集群的分析，即集群1（'khanjari大山'，'mohseni'，'lak sirizi'，'ebrahimi'，'sifadini'，'badami zarand'，'sephid peste nogh'和'post kaghazi'）分别用于雌性和雄性基因型的群体2（M10，M15，M24，M25和M26）表现出更高的形态参数和对盐度的耐受性更高。 More importantly, the analysis showed that these two categorized sets of genotypes can be proper choices for future breeding programs or to use directly in salinity conditions.
展开▼
